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Original Articles

Achievements and Challenges in Improving Temperate Perennial Forage Legumes

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REFERENCES

  • Aasmo Finne, M., Rognli, O.A., and Schjelderup, I. 2000a. Genetic variation in a Norwegian germplasm collection of white clover (Trifolium repens L.) 1. Population differences in agronomic characteristics. Euphytica 112: 33–44.
  • Aasmo Finne, M., Rognli, O.A., and Schjelderup, I. 2000b. Genetic variation in a Norwegian germplasm collection of white clover (Trifolium repens L.). 3. Correlation and path coefficient analyses of agronomic characters. Euphytica 112: 57–68.
  • Abberton, M.T. 2007. Interspecific hybridization in the genus Trifolium. Plant Breed. 126: 337–342.
  • Abberton, M.T. and Marshall, A.H. 2005. Progress in breeding perennial clovers for temperate agriculture. J. Agric. Sci. 143: 117–135.
  • Abberton, M.T. and Marshall, A.H. 2010. White clover. In: Fodder Crops and Amenity Grasses. Handbook of Plant Breeding. pp. 457–476. Boller, B., Posselt, U.K. and Veronesi, F., (eds.), New York: Springer.
  • Abberton, M.T., Marshall, A.H., Humphreys, M.W., Macduff, J.H., Collins, R.P., and Marley, C.L. 2008. Genetic improvement of forage species to reduce the environmental impact of temperate livestock grazing systems. Adv. Agron. 98: 311–355.
  • Abberton, M.T. and Thomas, I. 2011. Genetic resources in Trifolium and their utilization in plant breeding. Plant Genet. Resour. Char. Util. 9: 38–44.
  • Abd El-Naby, Z.M., Mohamed, N.A., and Shaban, K.A. 2013. Estimation of soil fertility and yield productivity of three alfalfa (Medicago sativa L.) cultivars under Sahl El-Tina saline soils conditions. Life Sci. J. 10: 2082–2095.
  • Acharya, A.R., Wofford, D.S., Kenworthy, K., and Quesenberry, K.H. 2011. Combining ability analysis of resistance in white clover to southern root-knot nematode. Crop Sci. 51: 1928–1934.
  • Acharya, S.N. and Steppuhn, H. 2012. Bridgeview alfalfa. Can. J. Plant Sci. 92: 203–206.
  • Al-Khatib, M., McNeilly, T., and Collins, J.C. 1993. The potential of selection and breeding for improved salt tolerance in lucerne (Medicago sativa L.). Euphytica 65: 43–51.
  • Al Lawati, A.H., Pierce, C.A., Murray, L.W., and Ray, I.M. 2010. Combining ability and heterosis for forage yield among elite alfalfa core collection accessions with different fall dormancy responses. Crop Sci. 50: 150–158.
  • Allard, R.W. 1960. Principles of Plant Breeding. New York: Wiley. 485pp.
  • Andersen, J.R. and Lübberstedt, T. 2003. Functional markers in plants. Trends Plant Sci. 8: 554–560.
  • Angus, J.F. and Peoples, M.B. 2012. Nitrogen from Australian dryland pastures. Crop Pasture Sci. 63: 746–758.
  • Annicchiarico, P. 1992. Cultivar adaptation and recommendation from alfalfa trials in Northern Italy. J. Genet. Breed. 46: 269–277.
  • Annicchiarico, P. 1993. Variation for dry matter yield, seed yield and other agronomic traits in Ladino white clover landraces and natural populations. Euphytica 71: 131–141.
  • Annicchiarico, P. 1997. Indirect selection for persistence and seed yield in large-leaved white clover. Plant Breed. 116: 192–194.
  • Annicchiarico, P. 2003. Breeding white clover for increased ability to compete with associated grasses. J. Agric. Sci. 140: 255–266.
  • Annicchiarico, P. 2004. A low-cost procedure for multi-purpose, large-scale field evaluation of forage crop genetic resources. Euphytica 140: 223–229.
  • Annicchiarico, P. 2006a. Diversity, genetic structure, distinctness and agronomic value of Italian lucerne (Medicago sativa L.) landraces. Euphytica 148: 269–282.
  • Annicchiarico, P. 2006b. Prediction of indirect selection for lucerne seed and forage yield from space-planted evaluation. Plant Breed. 125: 641–643.
  • Annicchiarico, P. 2007a. Inter- and intra-population genetic variation for leaf:stem ratio in landraces and varieties of lucerne. Grass Forage Sci. 62: 100–103.
  • Annicchiarico, P. 2007b. Lucerne shoot and root traits associated with adaptation to favourable or drought-stress environments and to contrasting soil types. Field Crops Res. 102: 51–59.
  • Annicchiarico, P. 2007c. Wide- versus specific–adaptation strategy for lucerne breeding in northern Italy. Theor. Appl. Genet. 114: 647–657.
  • Annicchiarico, P. 2009. Coping with and exploiting genotype-by-environment interactions. In: Plant Breeding and Farmer Participation. pp. 519–564. Ceccarelli, S., Guimaraes, E.P. and Weltzien, E., (eds.), Rome: Food and Agriculture Organization of the United Nations.
  • Annicchiarico, P. 2012. Agronomic value and morphophysiological diversity of non-Ladino Italian white clover wild populations compared with variety germplasm. Crop Pasture Sci. 63: 377–388.
  • Annicchiarico, P., and Carelli, M. 2014. Origin of Ladino white clover as inferred from patterns of molecular and morphophysiological diversity. Crop Sci. (in press). doi: 10.2135/cropsci2014.04.0308
  • Annicchiarico, P., Collins, R.P., Fornasier, F., and Rhodes, I. 2001. Variation in cold tolerance and spring growth among Italian white clover populations. Euphytica 122: 407–416.
  • Annicchiarico, P. and Pagnotta, M.A. 2012. Agronomic value and adaptation across climatically contrasting environments of Italian red clover landraces and natural populations. Grass Forage Sci. 67: 597–605.
  • Annicchiarico, P. and Pecetti, L. 2010. Forage and seed yield response of lucerne cultivars to chemically weeded and non-weeded managements and implications for germplasm choice in organic farming. Eur. J. Agron. 33: 74–80.
  • Annicchiarico, P., Pecetti, L., Abdelguerfi, A., Bouizgaren, A., Carroni, A.M., Hayek, T., Bouzina, M.M., and Mezni, M. 2011. Adaptation of landrace and variety germplasm and selection strategies for lucerne in the Mediterranean basin. Field Crops Res. 120: 283–291.
  • Annicchiarico, P., Pecetti, L., and Romani, M. 2007. Seed yielding ability of landraces of lucerne in Italy. Grass Forage Sci. 62: 507–510.
  • Annicchiarico, P., Pecetti, L., and Tava, A. 2013. Physiological and morphological traits associated with adaptation of lucerne (Medicago sativa) to severely drought-stressed and to irrigated environments. Ann. Appl. Biol. 162: 27–40.
  • Annicchiarico, P., Pecetti, L., and Torricelli, R. 2012. Impact of landrace germplasm, non-conventional habit and regional cultivar selection on forage and seed yield of organically grown lucerne in Italy. J. Agric. Sci. 150: 345–355.
  • Annicchiarico, P. and Piano, E. 1994. Interference effects in white clover genotypes grown as pure stands and binary mixtures with different grass species and varieties. Theor. Appl. Genet. 88: 153–168.
  • Annicchiarico, P. and Piano, E. 1995. Variation within and among Ladino white clover ecotypes for agronomic traits. Euphytica 86: 135–142.
  • Annicchiarico, P. and Piano, E. 1997. Effect of selection under cultivation on morphological traits and yield of Ladino white clover landraces. Genet. Resour. Crop Evol. 44: 405–410.
  • Annicchiarico, P. and Piano, E. 2000. Response of white clover genotypes to evaluation environments of dense and spaced planting, and implications for selection. Euphytica 111: 111–120.
  • Annicchiarico, P. and Piano, E. 2004. Indirect selection for root development of white clover and implications for drought tolerance. J. Agron. Crop Sci. 190: 28–34.
  • Annicchiarico, P. and Piano, E. 2005. Use of artificial environments to reproduce and exploit genotype x location interaction for lucerne in northern Italy. Theor. Appl. Genet. 110: 219–227.
  • Annicchiarico, P., Piano, E., and Rhodes, I. 1999. Heritability of, and genetic correlations among, forage and seed yield traits in Ladino white clover. Plant Breed. 118: 341–346.
  • Annicchiarico, P. and Proietti, S. 2010. White clover selected for enhanced competitive ability widens the compatibility with grasses and favours the optimization of legume content and forage yield in mown clover-grass mixtures. Grass Forage Sci. 65: 318–324.
  • Annicchiarico, P., Scotti, C., Carelli, M., and Pecetti, L. 2010. Questions and avenues for lucerne improvement. Czech J. Genet. Plant Breed. 46: 1–13.
  • Avia, K., Pilet-Nayel, M.L., Bahrman, N., Baranger, A., Delbreil, B., Fontaine, V., Hamon, C., Hanocq, E., Niarquin, M., Sellier, H., Vuylsteker, C., Prosperi, J.M., and Lejeune-Hénaut, I. 2013. Genetic variability and QTL mapping of freezing tolerance and related traits in Medicago truncatula. Theor. Appl. Genet. 126: 2353–2366.
  • Ayres, J.F., Caradus, J.R., Murison, R.D., Lane, L.A., and Woodfield, D.R. 2007. Grasslands Trophy - A new white clover (Trifolium repens L.) cultivar with tolerance of summer moisture stress. Aust. J. Exp. Agr. 47: 110–115.
  • Bagavathiannan, M.V., Begg, G.S., Gulden, R.H., and van Acker, R.C. 2012. Modelling the dynamics of feral alfalfa populations and its management implications. PLoS ONE 7: e39440.
  • Bagavathiannan, M.V., Julier, B., Barre, P., Gulden, R.H., and van Acker, R.C. 2010. Genetic diversity of feral alfalfa (Medicago sativa L.) populations occurring in Manitoba, Canada and comparison with alfalfa cultivars: An analysis using SSR markers and phenotypic traits. Euphytica 173: 419–432.
  • Bagavathiannan, M.V. and Van Acker, R.C. 2009. The biology and ecology of feral alfalfa (Medicago sativa L.) and its implications for novel trait confinement in North America. Crit. Rev. Plant Sci. 28: 69–87.
  • Baird, N.A., Etter, P.D., Atwood, T.S., Currey, M.C., Shiver, A.L., Lewis, Z.A., Selker, E.U., Cresko, W.A., and Johnson, E.A. 2008. Rapid SNP discovery and genetic mapping using sequenced RAD markers. PLoS ONE 3: e3376.
  • Baker, M.J. and Williams, W.M. 1987. White Clover. Wallingford, UK: CAB International. 534pp.
  • Bakheit, B.R., Ali, M.A., and Helmy, A.A. 2011. Effect of selection for crown diameter on forage yield and quality components in alfalfa (Medicago sativa L.). Asian J. Crop Sci. 3: 68–76.
  • Ballizany, W.L., Hofmann, R.W., Jahufer, M.Z. Z., and Barrett, B.A. 2012. Multivariate associations of flavonoid and biomass accumulation in white clover (Trifolium repens) under drought. Funct. Plant Biol. 39: 167–177.
  • Barbour, M., Caradus, J.R., Woodfield, D.R., and Silvester, W.B. 1996. Water stress and water use efficiency of ten white clover cultivars. In: White Clover: New Zealand's Competitive Edge. Joint Symposium, Lincoln University, New Zealand, 21-22 November, 1995. pp. 159–162. Woodfield, D.R., Ed., Christchurch, New Zealand: Agronomy Society of New Zealand.
  • Barnes, D.K., Bingham, E.T., Murphy, R.P., Hunt, O.J., Beard, D.F., Skrdla, W.H., and Teuber, L.R. 1977. Alfalfa germplasm in the United States: Genetic vulnerability, use, improvement, and maintenance. Tech. Bull. USDA 1571: 1–21.
  • Barnes, R.F., Nelson, C.J., Moore, K.J., and Collins, M. (eds.) 2007. Forages. Volume II. The Science of Grassland Agriculture.6th ed. Ames, Iowa: Blackwell Publishing Professional. 791pp.
  • Barrett, B., Baird, I., and Woodfield, D. 2009. White clover seed yield: A case study in marker-assisted selection. In: Molecular Breeding of Forage and Turf. pp. 241–250. Yamada, T. and Spangenberg, G. (eds.), New York: Springer.
  • Barrett, B., Griffiths, A., Schreiber, M., Ellison, N., Mercer, C., Bouton, J., Ong, B., Forster, J., Sawbridge, T., Spangenberg, G., Bryan, G., and Woodfield, D. 2004. A microsatellite map of white clover. Theor. Appl. Genet. 109: 596–608.
  • Barrett, B., Mercer, C., and Woodfield, D. 2005a. Genetic mapping of a root-knot nematode resistance locus in Trifolium. Euphytica 143: 85–92.
  • Barrett, B.A., Baird, I.J., and Woodfield, D.R. 2005b. A QTL analysis of white clover seed production. Crop Sci. 45: 1844–1850.
  • Basafa, M. and Taherian, M. 2009. A study of agronomic and morphological variations in certain alfalfa (Medicago sativa L.) ecotypes of the cold region of Iran. Asian J. Plant Sci. 8: 293–300.
  • Baucher, M., Monties, B., Van Montagu, M., and Boerjan, W. 1998. Biosynthesis and genetic engineering of lignin. Crit. Rev. Plant Sci. 17: 125–197.
  • Beever, D.E. 1993. Ruminant animal production from forages: present position and future opportunities. In: Grasslands for our World. pp. 158–164. Baker, M.J. (ed.), Wellington, New Zealand: SIR Publishing.
  • Benedito, V.A., Torres-Jerez, I., Murray, J.D., Andriankaja, A., Allen, S., Kakar, K., Wandrey, M., Verdier, J., Zuber, H., Ott, T., Moreau, S., Niebel, A., Frickey, T., Weiller, G., He, J., Dai, X., Zhao, P.X., Tang, Y., and Udvardi, M.K. 2008. A gene expression atlas of the model legume Medicago truncatula. Plant J. 55: 504–513.
  • Bennett, M.D. and Leitch, I.J. 2011. Nuclear DNA amounts in angiosperms: Targets, trends and tomorrow. Ann. Bot. 107: 467–590.
  • Berberet, R.C., Caddel, J.L., and Zarrabi, A.A. 1991. Pea Aphid Resistance: Acyrthosipon pisum (Harris). Standard Tests to Characterize Alfalfa Cultivars Bulletin. NAAIC Pea Aphid Resistance I-4. Beltsville, MD: North American Alfalfa Improvement Conference.
  • Berthet, E.T. A., Bretagnolle, V., and Segrestin, B. 2012. Analyzing the design process of farming practices ensuring Little Bustard conservation: Lessons for collective landscape management. J. Sustain. Agric. 36: 319–336.
  • Beveridge, C.A. 2006. Axillary bud outgrowth: Sending a message. Curr. Opin. Plant Biol. 9: 35–40.
  • Bhandari, H.S., Al Lawati, A.H., and Ray, I.M. 2011. Amplified fragment length polymorphism marker diversity among high yielding perennial alfalfa (Medicago sativa L.) core collection accessions. Crop Sci. 51: 1110–1121.
  • Bhandari, H.S., Pierce, C.A., Murray, L.W., and Ray, I.M. 2007. Combining abilities and heterosis for forage yield among high-yielding accessions of the alfalfa core collection. Crop Sci. 47: 665–673.
  • Bingham, E.T., Groose, R.W., Woodfield, D.R., and Kidwell, K.K. 1994. Complementary gene interactions in alfalfa are greater in autotetraploids than diploids. Crop Sci. 34: 823–829.
  • Blanc, G., Charcosset, A., Mangin, B., Gallais, A., and Moreau, L. 2006. Connected populations for detecting quantitative trait loci and testing for epistasis: An application in maize. Theor. Appl. Genet. 113: 206–224.
  • Blumenthal, J.M. and Russelle, M.P. 1996. Subsoil nitrate uptake and symbiotic dinitrogen fixation by alfalfa. Agron. J. 88: 909–915.
  • Bodzon, Z. 2004. Correlations and heritability of the characters determining the seed yield of the long-raceme alfalfa (Medicago sativa L.). J. Appl. Genet. 45: 49–59.
  • Boerjan, W., Ralph, J., and Baucher, M. 2003. Lignin biosynthesis. Annu. Rev. Plant Biol. 54: 519–546.
  • Bolaños-Aguilar, E.D., Huyghe, C., Djukic, D., Julier, B., and Ecalle, C. 2001. Genetic control of alfalfa seed yield and its components. Plant Breed. 120: 67–72.
  • Bolaños-Aguilar, E.D., Huyghe, C., Julier, B., and Ecalle, C. 2000. Genetic variation for seed yield and its components in alfalfa (Medicago sativa L.) populations. Agronomie 20: 333–345.
  • Bolaños-Aguilara, E.D., Huyghe, C., Ecalle, C., Hacquet, J., and Julier, B. 2002. Effect of cultivar and environment on seed yield in alfalfa. Crop Sci. 42: 45–50.
  • Boller, B., Posselt, U.K., and Veronesi, F. (eds.). 2010a. Fodder Crops and Amenity Grasses. Handbook of Plant Breeding. New York: Springer. 524pp.
  • Boller, B., Schubiger, F.X., and Kölliker, R. 2010b. Red clover. In: Fodder Crops and Amenity Grasses. Handbook of Plant Breeding. pp. 439–456. Boller, B., Posselt, U.K. and Veronesi, F. (eds.), New York: Springer.
  • Boller, B., Tanner, P., Gunter, S., and Schubiger, F.X. 2004. Mattenklee landraces, a valuable source of genetic variation for red clover breeding.. In: Land use systems in grassland dominated regions. Proceedings of the 20th General Meeting of the European Grassland Federation, Luzern, Switzerland, 21-24 June 2004. (Grassland Science in Europe Volume 9). pp. 368–388. Luscher, A., Jeangros, B., Kessler, W., Huguenin, O., Lobsiger, M., Millar, N. and Suter, D. (eds.), Zurich: Hochschulverlag AG an der ETH.
  • Boudet, A.M., Kajita, S., Grima-Pettenati, J., and Goffner, D. 2003. Lignins and lignocellulosics: A better control of synthesis for new and improved uses. Trends Plant Sci. 8: 576–581.
  • Bouton, J. 2007. The economic benefits of forage improvement in the United States. Euphytica 154: 263–270.
  • Bouton, J.H. 2012. Breeding lucerne for persistence. Crop Pasture Sci. 63: 95–106.
  • Bouton, J.H. and Gates, R.N. 2003. Grazing-tolerant alfalfa cultivars perform well under rotational stocking and hay management. Agron. J. 95: 1461–1464.
  • Bouton, J.H. and Parrott, W.A. 1997. Salinity and aluminium stress. In: Biotechnology in Agriculture Series: Biotechnology and the Improvement of Forage Legumes. pp. 203–226. McKersie, B.D. and Brown, D.C. W. (eds.), Wallingford, UK: CAB International.
  • Bouton, J.H., Smith, S.R. , Jr., Wood, D.T., Hoveland, C.S., and Brummer, E.C. 1991. Registration of ‘Alfagraze’ alfalfa. Crop Sci. 31: 479.
  • Bouton, J.H., Woodfield, D.R., Hoveland, C.S., McCann, M.A., and Caradus, J.R. 2005. Enhanced survival and animal performance from ecotype derived white clover cultivars. Crop Sci. 45: 1596–1602.
  • Bozzini, A., Calcagno, F., Soare, T., and Soare, G. 2008. A contribution to alfalfa genetic improvement: The new cultivars Katana, with white flowers and Lucrezia, with yellow flowers. J. Genet. Breed. 62: 11–14.
  • Branca, A., Paape, T.D., Zhou, P., Briskine, R., Farmer, A.D., Mudge, J., Bharti, A.K., Woodward, J.E., May, G.D., Gentzbittel, L., Ben, C., Denny, R., Sadowsky, M.J., Ronfort, J., Bataillon, T., Young, N.D., and Tiffin, P. 2011. Whole-genome nucleotide diversity, recombination, and linkage disequilibrium in the model legume Medicago truncatula. Proc. Natl. Acad. Sci. USA 108: E864–E870.
  • Brink, G.E. and Pederson, G.A. 1998. White clover response to a water-application gradient. Crop Sci. 38: 771–775.
  • Brink, G.E., Pederson, G.A., Alison, M.W., Ball, D.M., Bouton, J.H., Rawls, R.C., Stuedemann, J.A., and Venuto, B.C. 1999. Growth of white clover ecotypes, cultivars, and germplasms in the southeastern USA. Crop Sci. 39: 1809–1814.
  • Brito, A.F., Tremblay, G.F., Lapierre, H., Bertrand, A., Castonguay, Y., Bélanger, G., Michaud, R., Benchaar, C., Ouellet, D.R., and Berthiaume, R. 2009. Alfalfa cut at sundown and harvested as baleage increases bacterial protein synthesis in late-lactation dairy cows. J. Dairy Sci. 92: 1092–1107.
  • Broderick, G.A., Albrecht, K.A., Owens, V.N., and Smith, R.R. 2004. Genetic variation in red clover for rumen protein degradability. Anim. Feed Sci. Technol. 113: 157–167.
  • Broderick, G.A., Brito, A.F., and Colmenero, J.J. O. 2007. Effects of feeding formate-treated alfalfa silage or red clover silage on the production of lactating dairy cows. J. Dairy Sci. 90: 1378–1391.
  • Brouwer, D.J., Duke, S.H., and Osborn, T.C. 1998. Comparison of seedlings and cuttings for evaluating winter hardiness in alfalfa. Crop Sci. 38: 1704–1707.
  • Brouwer, D.J., Duke, S.H., and Osborn, T.C. 2000. Mapping genetic factors associated with winter hardiness, fall growth, and freezing injury in autotetraploid alfalfa. Crop Sci. 40: 1387–1396.
  • Brummer, E.C. 1999. Capturing heterosis in forage crop cultivar development. Crop Sci. 39: 943–954.
  • Brummer, E.C. 2004. Genomics research in alfalfa, Medicago sativa L. In: Legume Crop Genomics. pp. 110–142. Wilson, R.F., Stalker, H.T. and Brummer, E.C. (eds.), Champaign, Illinois: AOCS Press.
  • Brummer, E.C. 2006. Grazing tolerant alfalfa cultivars have superior persistence under continuous and rotational stocking. Forage Grazinglands doi: 10.1094/FG-2006-0825-01-RS.
  • Brummer, E.C. and Bouton, J.H. 1991. Morphological traits associated with grazing tolerant alfalfa. Agron. J. 83: 996–1000.
  • Brummer, E.C. and Bouton, J.H. 1992. Physiological traits associated with grazing tolerant alfalfa. Agron. J.84: 138–143.
  • Brummer, E.C., Bouton, J.H., and Kochert, G. 1993. Development of an RFLP map in diploid alfalfa. Theor. Appl. Genet. 86: 329–332.
  • Brummer, E.C., Shah, M.M., and Luth, D. 2000. Reexamining the relationship between fall dormancy and winter hardiness in alfalfa. Crop Sci. 40: 971–977.
  • Bues, A., Preißel, S., Reckling, M., Zander, P., Kuhlman, T., Topp, K., Watson, C., Lindström, K., Stoddard, F.L., and Murphy-Bokern, D. 2013. The Environmental Role of Protein Crops in the New Common Agricultural Policy. Brussels, Belgium: European Union. 113pp.
  • Burggraaf, V., Waghorn, G., Woodward, S., and Thom, E. 2008. Effects of condensed tannins in white clover flowers on their digestion in vitro. Anim. Feed Sci. Technol. 142: 44–58.
  • Busbice, T.H. 1969. Inbreeding in synthetic varieties. Crop Sci. 9: 601–604.
  • Busbice, T.H. 1970. Predicting yield of synthetic varieties. Crop Sci. 10: 265–269.
  • Busbice, T.H., Campbell, W.V., Bunch, L.V., and Gurgis, R.Y. 1978. Breeding alfalfa cultivars resistant to the alfalfa weevil. Euphytica 27: 343–352.
  • Buyukkartal, H.N. B. 2008. Causes of low seed set in the natural tetraploid Trifolium pratense L. (Fabaceae). Afr. J. Biotechnol. 7: 1240–1249.
  • Call, N.M., Quesenberry, K.H., Wofford, D.S., and Dunn, R.A. 1997. Combining ability analysis of resistance to southern root-knot nematode in red clover. Crop Sci. 37: 121–124.
  • Campbell, B.D., Grime, J.P., and Mackey, J.M. L. 1991. A trade-off between scale and precision in resource foraging. Oecologia 87: 532–538.
  • Campos-de-Quiroz, H. and Ortega-Klose, F. 2001. Genetic variability among elite red clover (Trifolium pratense L.) parents used in Chile as revealed by RAPD markers. Euphytica 122: 61–67.
  • Caradus, J.R. 1994. Selection for improved adaptation of white clover to low phosphorus and acid soils. Euphytica 77: 243–250.
  • Caradus, J.R. and Chapman, D.F. 1996. Selection for and heritability of stolon characteristics in two cultivars of white clover. Crop Sci. 36: 900–904.
  • Caradus, J.R. and Chapman, D.F. 1998. Growth in grazed pastures of white clover breeding lines selected for extremes of leaf size, internode length, and nodal branching. N. Z. J. Agric. Res. 41: 49–52.
  • Caradus, J.R. and Christie, B.R. 1998. Winterhardiness and artificial frost tolerance of white clover ecotypes and selected breeding lines. Can. J. Plant Sci. 78: 251–255.
  • Caradus, J.R., Clifford, P.T. P., Chapman, D.F., Cousins, G.R., Williams, W.M., and Miller, J.E. 1997. Breeding and description of ‘Grasslands sustain’, a medium-large-leaved white clover (Trifolium repens L.) cultivar. N. Z. J. Agric. Res. 40: 1–7.
  • Caradus, J.R., Crush, J.R., Ouyang, L., and Fraser, W. 2001. Evaluation of aluminium-tolerant white clover (Trifolium repens) selections on East Otago upland soils. N. Z. J. Agric. Res. 44: 141–150.
  • Caradus, J.R. and Dunn, A. 2000. Adaptation to low fertility hill country in New Zealand of white clover lines selected for differences in response to phosphorus. N. Z. J. Agric. Res. 43: 63–69.
  • Caradus, J.R., Kennedy, L.D., and Dunn, A. 1998. Genetic variation for the ratio of inorganic to total phosphorus in white clover leaves. J. Plant Nutr. 21: 2265–2272.
  • Caradus, J.R., MacKay, A.C., Woodfield, D.R., van den Bosch, J., and Wewala, S. 1989. Classification of a world collection of white clover cultivars. Euphytica 42: 183–196.
  • Caradus, J.R. and Woodfield, D.R. 1990. Estimates of heritability for, and relationships between, root and shoot characters of white clover. I. Replicated clonal material. Euphytica 46: 203–209.
  • Caradus, J.R. and Woodfield, D.R. 1997. World checklist of white clover varieties II. N. Z. J. Agric. Res. 40: 115–206.
  • Caradus, J.R. and Woodfield, D.R. 1998. Genetic control of adaptive root characteristics in white clover. Plant Soil 200: 63–69.
  • Care, D.A. 1995. The effect of aluminium concentration on root hairs in white clover (Trifolium repens L.). Plant Soil 171: 159–162.
  • Casey, N., Milbourne, D., Barth, S., Febrer, M., Jenkins, G., Abberton, M.T., Jones, C., and Thorogood, D. 2010. The genetic location of the self-incompatibility locus in white clover (Trifolium repens L.). Theor. Appl. Genet. 121: 567–576.
  • Cash, D. and Yuegao, H. 2009. Alfalfa Management Guide for Ningxia. Beijing: Food and Agriculture Organization of the United Nations. 110pp.
  • Casler, M.D. and Brummer, E.C. 2008. Theoretical expected genetic gains for among- and within- family selection methods in perennial forage crops. Crop Sci. 48: 890–902.
  • Casler, M.D. and Undersander, D.J. 2000. Forage yield precision, experimental design, and cultivar mean separation for alfalfa cultivar trials. Agron. J. 92: 1064–1071.
  • Castonguay, Y., Cloutier, J., Bertrand, A., Michaud, R., and Laberge, S. 2010. SRAP polymorphisms associated with superior freezing tolerance in alfalfa (Medicago sativa spp. sativa). Theor. Appl. Genet. 120: 1611–1619.
  • Castonguay, Y., Dubé, M.P., Cloutier, J., Michaud, R., Bertrand, A., and Laberge, S. 2012. Intron-length polymorphism identifies a Y2K4 dehydrin variant linked to superior freezing tolerance in alfalfa. Theor. Appl. Genet. 124: 809–819.
  • Castonguay, Y., Michaud, R., Nadeau, P., and Bertrand, A. 2009. An indoor screening method for improvement of freezing tolerance in alfalfa. Crop Sci. 49: 809–818.
  • Chamblee, D.S. and Collins, M. 1988. Relationships with other species in a mixture. In: Alfalfa and Alfafa Improvement. pp. 439–462. Hanson, A.A., Barnes, D.K. and Hill Jr, R.R. (eds.), Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America.
  • Chapman, D.F., Parsons, A.J., and Schwinning, S. 1996. Management of clover in grazed pastures: expectations, limitations and opportunities. In: White Clover: New Zealand's Competitive Edge. Joint Symposium, Lincoln University, New Zealand, 21-22 November, 1995. pp. 55–64. Woodfield, D.R. (ed.), Christchurch: Agronomy Society of New Zealand.
  • Chen, C., and Gibson, P.B. 1971. Karyotypes of fifteen Trifolium species in section Amoria. Crop Sci. 11: 441–445.
  • Chen, C., Gibson, P.B. 1972. Chromosome relationships of Trifolium uniflorum to T. repens and T. occidentale. Can. J. Genet. Cytol. 14: 591–595.
  • Chen, J., Okumura, K., and Takada, H. 2010. Estimation of clover biomass and percentage in a performance trial of white clover-timothy binary mixtures: Use of multiple regression equations incorporating plant cover measured with the grid-point plate. Grassland Sci. 56: 127–133.
  • Choi, H.K., Kim, D., Uhm, T., Limpens, E., Lim, H., Mun, J.H., Kalo, P., Penmetsa, R.V., Seres, A., Kulikova, O., Roe, B.A., Bisseling, T., Kiss, G.B., and Cook, D.R. 2004a. A sequence-based genetic map of Medicago truncatula and comparison of marker colinearity with M. sativa. Genetics 166: 1463–1502.
  • Choi, H.K., Mun, J.H., Kim, D.J., Zhu, H., Baek, J.M., Mudge, J., Roe, B., Ellis, N., Doyle, J., Kiss, G.B., Young, N.D., and Cook, D.R. 2004b. Estimating genome conservation between crop and model legume species. Proc. Natl. Acad. Sci. USA 101: 15289–15294.
  • Christie, B.R. and Choo, T.M. 1991. Morphological characteristics associated with winter survival of five growth types of tetraploid red clover. Euphytica 54: 275–278.
  • Cogan, N.O. I., Abberton, M.T., Smith, K.F., Kearney, G., Marshall, A.H., Williams, A., Michaelson-Yeates, T.P. T., Bowen, C., Jones, E.S., Vecchies, A.C., and Forster, J.W. 2006. Individual and multi-environment combined analyses identify QTLs for morphogenetic and reproductive development traits in white clover (Trifolium repens L.). Theor. Appl. Genet. 112: 1401–1415.
  • Cogan, N.O. I., Drayton, M.C., Ponting, R.C., Vecchies, A.C., Bannan, N.R., Sawbridge, T.I., Smith, K.F., Spangenberg, G.C., and Forster, J.W. 2007. Validation of in silico-predicted genic SNPs in white clover (Trifolium repens L.), an outbreeding allopolyploid species. Mol. Genet. Genomics 277: 413–425.
  • Collins, R.P., and Rhodes, I. 1990. The basis and significance of compatibility in grass/clover mixtures. Herba 3: 30–32.
  • Collins, R.P., and Rhodes, I. 1995. Stolon characteristics related to winter survival in white clover. J. Agric. Sci. 124: 11–16.
  • Collins, R.P., Glendining, M.J., and Rhodes, I., 1991. The relationships between stolon characteristics, winter survival and annual yields in white clover (Trifolium repens L.). Grass Forage Sci. 46: 51–61.
  • Collins, R.P., Helgadóttir, Á., Fothergill, M., and Rhodes, I. 2002. Variation amongst survivor populations of white clover collected from sites across Europe: Growth attributes and physiological responses to low temperature. Ann. Bot. 89: 283–292.
  • Collins, R.P., Helgadottir, A., Frankow-Lindberg, B.E., Skot, L., Jones, C., and Skot, K.P. 2012. Temporal changes in population genetic diversity and structure in red and white clover grown in three contrasting environments in northern Europe. Ann. Bot. 110: 1341–1350.
  • Collins, R.P., Marshall, A.H., Ribaimont, F., Michaelson-Yeates, T.P. T., Williams, T.A., Olyott, P., and Abberton, M.T. 2006. Developing the role of Lotus species in UK grasslands. In: Sustainable Grassland Productivity: Proceedings of the 21st General Meeting of the European Grassland Federation, Badajoz, Spain, 3-6 April, 2006. pp. 249–251. Lloveras, J., Gonzalez-Rodriguez, A., Vazquez-Yanez, O., Pineiro, J., Santamaria, O., Olea, L. and Poblaciones, M.J. (eds.), Madrid: Sociedad Espanola para el Estudio de los Pastos.
  • Columella, L.I. M. 1846. De Re Rustica. Venezia: Del Bene.
  • Comai, L., Young, K., Till, B.J., Reynolds, S.H., Greene, E.A., Codomo, C.A., Enns, L.C., Johnson, J.E., Burtner, C., Odden, A.R., and Henikoff, S. 2004. Efficient discovery of DNA polymorphisms in natural populations by Ecotilling. Plant J. 37: 778–786.
  • Confalonieri, M. and Annicchiarico, P. 2014. Alfalfa genetic variation for response to tissue culture and in vitro regeneration. Legume Perspect. 4: 20.
  • Cong, L., Ran, F.A., Cox, D., Lin, S., Barretto, R., Habib, N., Hsu, P.D., Wu, X., Jiang, W., Marraffini, L.A., and Zhang, F. 2013. Multiplex genome engineering using CRISPR/Cas systems. Science 339: 819–823.
  • COPA-COGECA 2007. Lucerne: An Asset to the Environment Paris: COPA-COGECA.
  • Cowan, A.A., Marshall, A.H., and Michaelson-Yeates, T.P. T. 2000. Effect of pollen competition and stigmatic receptivity on seed set in white clover (Trifolium repens L.). Sex. Plant Reprod. 13: 37–42.
  • Cox, T.S., Shroyer, J.P., Liu, B.H., Sears, R.G., and Martin, T.J. 1988. Genetic improvement in agronomic traits of hard red winter wheat cultivars from 1919 to 1987. Crop Sci. 28: 756–760.
  • Crochemore, M.L., Huyghe, C., Écalle, C., and Julier, B. 1998. Structuration of alfalfa genetic diversity using agronomic and morphological characteristics. Relationship with RAPD markers. Agronomie 18: 79–94.
  • Crochemore, M.L., Huyghe, C., Kerlan, M.C., Durand, F., and Julier, B. 1996. Partitioning and distribution of RAPD variation in a set of populations of the Medicago sativa complex. Agronomie 16: 421–432.
  • Crush, J.R. and Caradus, J.R. 1995. Cyanogenesis potential and iodine concentration in white clover (Trifolium repens L.) cultivars. N. Z. J. Agric. Res. 38: 309–316.
  • Crush, J.R., Cooper, B.M., Woodfield, D.R., and Gerard, P.J. 2005. Development of clovers that are tolerant to clover root weevil. Proc. N. Z. Grassland Assoc. 67: 23–27.
  • Cunningham, S.M., Gana, J.A., Volenec, J.J., and Teuber, L.R. 2001. Winter hardiness, root physiology, and gene expression in successive fall dormancy selections from ‘Mesilla’ and ‘CUF 101’ alfalfa. Crop Sci. 41: 1091–1098.
  • Cunningham, S.M., Volenec, J.J., and Teuber, L.R. 1998. Plant survival and root and bud composition of alfalfa populations selected for contrasting fall dormancy. Crop Sci. 38: 962–969.
  • DeLong, M.M., Swanberg, D.R., Oelke, E.A., Hanson, C., Onischak, M., Schmid, M.R., and Wiant, B.C. 1995. Sustainable biomass energy production and rural economic development using alfalfa as a feedstock. In: Second Biomass Conference of the Americas: Energy, Environment, Agriculture, and Industry, 21-24 August 1995, Portland, Oregon. pp. 1582–1591. Klass, D.L. (ed.), Golden, Colorado: National Renewable Energy Laboratory.
  • Demarquilly, C., Dulphy, J.P., and Andrieu, J.P. 1998. Valeurs nutritive et alimentaire des fourrages selon les techniques de conservation: Foin, ensilage, enrubannage. Fourrages 155: 349–369.
  • Dewhurst, R.J., Delaby, L., Moloney, A., Boland, T., and Lewis, E. 2009. Nutritive value of forage legumes used for grazing and silage. Irish J. Agr. Food Res. 48: 167–187.
  • Dewhurst, R.J., Fisher, W.J., Tweed, J.K. S., and Wilkins, R.J. 2003. Comparison of grass and legume silages for milk production. 1. Production responses with different levels of concentrate. J. Dairy Sci. 86: 2598–2611.
  • Dias, P.M. B., Julier, B., Sampoux, J.P., Barre, P., and Dall’Agnol, M. 2008. Genetic diversity in red clover (Trifolium pratense L.) revealed by morphological and microsatellite (SSR) markers. Euphytica 160: 189–205.
  • Dien, B.S., Miller, D.J., Hector, R.E., Dixon, R.A., Chen, F., McCaslin, M., Reisen, P., Sarath, G., and Cotta, M.A. 2011. Enhancing alfalfa conversion efficiencies for sugar recovery and ethanol production by altering lignin composition. Bioresour. Technol. 102: 6479–6486.
  • Diwan, N., Bhagwat, A.A., Bauchan, G.B., and Cregan, P.B. 1997. Simple sequence repeat DNA markers in alfalfa and perennial and annual Medicago species. Genome 40: 887–895.
  • Diwan, N., Bouton, J.H., Kochert, G., and Cregan, P.B. 2000. Mapping of simple sequence repeat (SSR) DNA markers in diploid and tetraploid alfalfa. Theor. Appl. Genet. 101: 165–172.
  • Dubé, M.P., Castonguay, Y., Cloutier, J., Michaud, J., and Bertrand, A. 2013. Characterization of two novel cold-inducible K3 dehydrin genes from alfalfa (Medicago sativa spp. sativa L.). Theor. Appl. Genet. 126: 823–835.
  • Eickler, B., Gierus, M., Kleen, J., and Taube, F. 2011. Specific polyphenol oxidase activity of red clover (Trifolium pratense) and its relation with forage quality in field experiments. Acta Agr. Scand. B–S. P. 61: 39–49.
  • El Yahyaoui, F., Küster, H., Amor, B.B., Hohnjec, N., Pühler, A., Becker, A., Gouzy, J., Vernié, T., Gough, C., Niebel, A., Godiard, L., and Gamas, P. 2004. Expression profiling in Medicago truncatula identifies more than 750 genes differentially expressed during nodulation, including many potential regulators of the symbiotic program. Plant Physiol. 136: 3159–3176.
  • Elden, T.C. and McCaslin, M. 1997. Potato leafhopper (Homoptera: Cicadellidae) resistance in perennial glandular-haired alfalfa clones. J. Econ. Entomol. 90: 842–847.
  • Elgin, J.H. , Jr. and Ostazeski, S.A. 1985. Inheritance of resistance to race 1 and race 2 anthracnose in Arc and Saranac AR alfalfa. Crop Sci. 25: 861–865.
  • Elgin, J.H. , Jr., Welty, R.E., and Gilchrist, D.B. 1988. Breeding for disease and nematode resistance. In: Alfalfa and Alfalfa improvement. pp. 827–858. Hanson, A.A., Barnes, D.K. and Hill Jr, R.R. (eds.), Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America.
  • Ellison, N.W., Liston, A., Steiner, J.J., Williams, W.M., and Taylor, N.L. 2006. Molecular phylogenetics of the clover genus (Trifolium-Leguminosae). Mol. Phylogen. Evol. 39: 688–705.
  • Elshire, R.J., Glaubitz, J.C., Sun, Q., Poland, J.A., Kawamoto, K., Buckler, E.S., and Mitchell, S.E. 2011. A robust, simple genotyping-by-sequencing (GBS) approach for high diversity species. PLoS ONE 6: e19379.
  • Evans, D.R., Hill, J., Williams, T.A., and Rhodes, I. 1989. Coexistence and the productivity of white clover-perennial ryegrass mixtures. Theor. Appl. Genet. 77: 65–70.
  • Evans, D.R., Williams, T.A., and Evans, S.A. 1992. Evaluation of white clover varieties under grazing and their role in farm systems. Grass Forage Sci. 47: 342–352.
  • Evans, D.R., Williams, T.A., Jones, S., and Evans, S.A. 1998. The effect of cutting and intensive grazing managements on sward components of contrasting ryegrass and white clover types when grown in mixtures. J. Agric. Sci. 130: 317–322.
  • Falconer, D.S. 1989. Introduction to Quantitative Genetics. Harlow, Essex: Longman Scientific & Technical. 438pp.
  • Febrer, M., Cheung, F., Town, C.D., Cannon, S.B., Young, N.D., Abberton, M.T., Jenkins, G., and Milbourne, D. 2007. Construction, characterization, and preliminary BAC-end sequencing analysis of a bacterial artificial chromosome library of white clover (Trifolium repens L.). Genome 50: 412–421.
  • Flajoulot, S., Ronfort, J., Baudouin, P., Barre, P., Huguet, T., Huyghe, C., and Julier, B. 2005. Genetic diversity among alfalfa (Medicago sativa) cultivars coming from a breeding program, using SSR markers. Theor. Appl. Genet. 111: 1420–1429.
  • Fonseca, C.E. L., Viands, D.R., Hansen, J.L., and Pell, A.N. 1999. Associations among forage quality traits, vigor, and disease resistance in alfalfa. Crop Sci. 39: 1271–1276.
  • Ford, J.L. and Barrett, B.A. 2011. Improving red clover persistence under grazing. Proc. N. Z. Grassland Assoc. 73: 119–124.
  • Forster, J.W., Panter, S., Mouradov, A., Mason, J., and Spangenberg, G.C. 2013. Transgenic technologies for enhanced molecular breeding of white clover (Trifolium repens L.). Crop Pasture Sci. 64: 26–38.
  • Frame, J. 2005. Forage Legumes for Temperate Grasslands. Enfield, USA: Science Publishers, Inc. 309pp.
  • Frame, J. and Newbould, P. 1986. Agronomy of white clover. Adv. Agron. 40: 1–88.
  • Frankow-Lindberg, B.E. 2001. Adaptation to winter stress in nine white clover populations: Changes in non-structural carbohydrates during exposure to simulated winter conditions and ‘spring’ regrowth potential. Ann. Bot. 88: 745–751.
  • Franzmayr, B.K., Rasmussen, S., Fraser, K.M., and Jameson, P.E. 2012. Expression and functional characterization of a white clover isoflavone synthase in tobacco. Ann. Bot. 110: 1291–1301.
  • Gallais, A. 2003. Quantitative Genetics and Breeding Methods in Autopolyploid Plants. Paris: Institut National de la Recherche Agronomique. 515pp.
  • Gallego, A., Hospido, A., Moreira, M.T., and Feijoo, G. 2011. Environmental assessment of dehydrated alfalfa production in Spain. Resour. Conserv. Recy. 55: 1005–1012.
  • George, J., Dobrowolski, M.P., Van Zijll De Jong, E., Cogan, N.O. I., Smith, K.F., and Forster, J.W. 2006. Assessment of genetic diversity in cultivars of white clover (Trifolium repens L.) detected by SSR polymorphisms. Genome 49: 919–930.
  • George, J., Sawbridge, T.I., Cogan, N.O. I., Gendall, A.R., Smith, K.F., Spangenberg, G.C., and Forster, J.W. 2008. Comparison of genome structure between white clover and Medicago truncatula supports homoeologous group nomenclature based on conserved synteny. Genome 51: 905–911.
  • Gerard, P.J., Crush, J.R., and Hackell, D.L. 2005. Interaction between Sitona lepidus and red clover lines selected for formononetin content. Ann. Appl. Biol. 147: 173–181.
  • Getachew, G., Ibáñez, A.M., Pittroff, W., Dandekar, A.M., McCaslin, M., Goyal, S., Reisen, P., DePeters, E.J., and Putnam, D.H. 2011. A comparative study between lignin down regulated alfalfa lines and their respective unmodified controls on the nutritional characteristics of hay. Anim. Feed Sci. Technol. 170: 192–200.
  • Ghamkhar, K., Isobe, S., Nichols, P.G. H., Faithfull, T., Ryan, M.H., Snowball, R., Sato, S., and Appels, R. 2012. The first genetic maps for subterranean clover (Trifolium subterraneum L.) and comparative genomics with T. pratense L. and Medicago truncatula Gaertn. to identify new molecular markers for breeding. Mol. Breed. 30: 213–226.
  • Gibson, K.E., Kobayashi, H., and Walker, G.C. 2008. Molecular determinants of a symbiotic chronic infection. Annu. Rev. Genet. 42: 413–441.
  • Gierus, M., Kleen, J., Loges, R., and Taube, F. 2012. Forage legume species determine the nutritional quality of binary mixtures with perennial ryegrass in the first production year. Anim. Feed Sci. Technol. 172: 150–161.
  • Gilliland, T.J., McGilloway, D., and Conaghan, P. 2009. Influence of testing procedure on evaluation of white clover (Trifolium repens L.). Irish J. Agr. Food Res. 48: 227–242.
  • Girousse, C. and Bournoville, R. 1994. Biological criteria of the pea aphid Acyrthosiphon pisum Harris and varietal resistance of lucerne. In: Management and Breeding of Perennial Lucerne for Diversified Purposes. Meeting in Lusignan, France, 4-8 September 1994. European and Near-East Cooperative Resesearch Networks on Pastures and Fodder Crop Production. pp. 251–253. Rome: Food and Agricultural Organization of the United Nations.
  • Girousse, C., Bournoville, R., and Badenhausser, I. 1998. Evaluation of alfalfa resistance to the pea aphid, Acyrthosiphon pisum (Homoptera: Aphididae). Methodological aspects to improve a standardized seedling test. Phytoprotection 79: 139–148.
  • Gjuric, R. and Smith Jr, S.R. 1996. Identification of cross-pollinated and self-pollinated progeny in alfalfa through RAPD nulliplex loci analysis. Crop Sci. 36: 389–393.
  • Göransson, M., Kristjánsdóttir, T.A., Dalmannsdóttir, S., and Helgadóttir, Á. 2012. Genetic shift in white clover (Trifolium repens) after natural selection in a marginal area. Iceland. Agr. Sci. 25: 41–50.
  • Green, A.J., Berger, G., Griffey, C.A., Pitman, R., Thomason, W., Balota, M., and Ahmed, A. 2012. Genetic yield improvement in soft red winter wheat in the Eastern United States from 1919 to 2009. Crop Sci. 52: 2097–2108.
  • Greene, S.L., Gritsenko, M., and Vandemark, G. 2004. Relating morphologic and RAPD marker variation to collection site environment in wild populations of red clover (Trifolium pratense L.). Genet. Resour. Crop Evol. 51: 643–653.
  • Grewal, H.S. and Williams, R. 2003. Liming and cultivars affect root growth, nodulation, leaf to stem ratio, herbage yield, and elemental composition of alfalfa on an acid soil. J. Plant Nutr. 26: 1683–1696.
  • Griffiths, A.G., Barrett, B.A., Simon, D., Khan, A.K., Bickerstaff, P., Anderson, C.B., Franzmayr, B.K., Hancock, K.R., and Jones, C.S. 2013. An integrated genetic linkage map for white clover (Trifolium repens L.) with alignment to Medicago. BMC Genom. 14: 388.
  • Groose, R.W., Talbert, L.E., Kojis, W.P., and Bingham, E.T. 1989. Progressive heterosis in autotetraploid alfalfa: Studies using two types of inbreds. Crop Sci. 29: 1173–1177.
  • Guines, F., Julier, B., Ecalle, C., and Huyghe, C. 2002. Genetic control of quality traits of lucerne (Medicago sativa L.). Aust. J. Agric. Res. 53: 401–407.
  • Guo, D., Chen, F., Inoue, K., Blount, J.W., and Dixon, R.A. 2001a. Downregulation of caffeic acid 3-O-methyltransferase and caffeoyl CoA 3-O-methyltransferase in transgenic alfalfa: Impacts on lignin structure and implications for the biosynthesis of G and S lignin. Plant Cell 13: 73–88.
  • Guo, D., Chen, F., Wheeler, J., Winder, J., Selman, S., Peterson, M., and Dixon, R.A. 2001b. Improvement of in-rumen digestibility of alfalfa forage by genetic manipulation of lignin O-methyltransferases. Transgenic Res. 10: 457–464.
  • Gupta, P.K. and Rustgi, S. 2004. Molecular markers from the transcribed/expressed region of the genome in higher plants. Funct. Integr. Genom. 4: 139–162.
  • Gutzwiller, A. 1993. The effect of a diet containing cyanogenetic glycosides on the selenium status and the thyroid function of sheep. Anim. Prod. 57: 415–419.
  • Guy, P., Leconte, D., and Mousset-Déclas, C. 1989. Les variétés de légumineuses de demain pour les régions atlantiques et continentales. Fourrages 119: 281–297.
  • Hall, M.H., Smiles, W.S., and Dickerson, R.A. 2000. Morphological development of alfalfa cultivars selected for higher quality. Agron. J. 92: 1077–1080.
  • Han, Y., Kang, Y., Torres-Jerez, I., Cheung, F., Town, C.D., Zhao, P.X., Udvardi, M.K., and Monteros, M.J. 2011. Genome-wide SNP discovery in tetraploid alfalfa using 454 sequencing and high resolution melting analysis. BMC Genom. 12: 350.
  • Han, Y., Khu, D.M., and Monteros, M.J. 2012. High-resolution melting analysis for SNP genotyping and mapping in tetraploid alfalfa (Medicago sativa L.). Mol. Breed. 29: 489–501.
  • Hancock, K.R., Collette, V., Fraser, K., Greig, M., Xue, H., Richardson, K., Jones, C., and Rasmussen, S. 2012. Expression of the R2R3-MYB transcription factor TaMYB14 from Trifolium arvense activates proanthocyanidin biosynthesis in the legumes Trifolium repens and Medicago sativa. Plant Physiol. 159: 1204–1220.
  • Hand, M.L., Cogan, N.O. I., Sawbridge, T.I., Spangenberg, G.C., and Forster, J.W. 2010. Comparison of homoeolocus organisation in paired BAC clones from white clover (Trifolium repens L.) and microcolinearity with model legume species. BMC Plant Biol. 10: 94.
  • Hand, M.L., Ponting, R.C., Drayton, M.C., Lawless, K.A., Cogan, N.O. I., Brummer, E. C., Sawbridge, T.I., Spangenberg, G.C., Smith, K.F., and Forster, J.W. 2008. Identification of homologous, homoeologous and paralogous sequence variants in an outbreeding allopolyploid species based on comparison with progenitor taxa. Mol. Genet. Genomics 280: 293–304.
  • Hanson, A.A., Barnes, D.K., and Hill Jr, R.R. (eds.) 1988. Alfalfa and Alfalfa Improvement. Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America. 1084pp.
  • Harper, J.L. 1977. Population Biology of Plants. London: Academic Press. 892pp.
  • Harris, W. 1987. Population dynamics and competition. In: White Clover. pp. 203–297. Baker, M.J. and Williams, W.M. (eds.), Wallingford, UK: CAB International.
  • Hart, A.L. 1987. Physiology. In: White Clover. pp. 125–151. Baker, M.J. and Williams, W.M. (eds.), Wallingford, UK: CAB International.
  • Hayes, B.J., Cogan, N.O. I., Pembleton, L.W., Goddard, M.E., Wang, J., Spangenberg, G.C., and Forster, J.W. 2013. Prospects for genomic selection in forage plant species. Plant Breed. 132: 133–143.
  • Hayes, R.C., Conyers, M.K., Li, G.D., Poile, G.J., Price, A., McVittie, B.J., Gardner, M.J., Sandral, G.A., and McCormick, J.I. 2012a. Spatial and temporal variation in soil Mn2+ concentrations and the impact of manganese toxicity on lucerne and subterranean clover seedlings. Crop Pasture Sci. 63: 875–885.
  • Hayes, R.C., Newell, M.T., DeHaan, L.R., Murphy, K.M., Crane, S., Norton, M.R., Wade, L.J., Newberry, M., Fahim, M., Jones, S.S., Cox, T.S., and Larkin, P.J. 2012b. Perennial cereal crops: An initial evaluation of wheat derivatives. Field Crops Res. 133: 68–89.
  • Hayes, R.C., Scott, B.J., Dear, B.S., Li, G.D., and Auricht, G.C. 2011. Seedling validation of acid soil tolerance of lucerne populations selected in solution culture high in aluminium. Crop Pasture Sci. 62: 803–811.
  • Haynes, R.J. 1980. Competitive aspects of the grass-legume association. Adv. Agron. 33: 227–261.
  • Hecht, V., Foucher, F., Ferrándiz, C., Macknight, R., Navarro, C., Morin, J., Vardy, M.E., Ellis, N., Beltrán, J.P., Rameau, C., and Weller, J.L. 2005. Conservation of Arabidopsis flowering genes in model legumes. Plant Physiol. 137: 1420–1434.
  • Heffner, E.L., Sorrells, M.E., and Jannink, J.L. 2009. Genomic selection for crop improvement. Crop Sci. 49: 1–12.
  • Hejduk, S. and Knot, P. 2010. Effect of provenance and ploidity of red clover varieties on productivity, persistence and growth pattern in mixture with grasses. Plant Soil Environ. 56: 111–119.
  • Helgadóttir, Á., Dalmannsdóttir, S., and Collins, R.P. 2001. Adaptational changes in white clover populations selected under marginal conditions. Ann. Bot. 88: 771–780.
  • Helgadóttir, Á., Marum, P., Dalmannsdóttir, S., Daugstad, K., Kristjánsdóttir, T.A., and Lunnan, T. 2008. Combining winter hardiness and forage yield in white clover (Trifolium repens) cultivated in northern environments. Ann. Bot. 102: 825–834.
  • Herrmann, D., Barre, P., Santoni, S., and Julier, B. 2010. Association of a CONSTANS-LIKE gene to flowering and height in autotetraploid alfalfa. Theor. Appl. Genet. 121: 865–876.
  • Herrmann, D., Boller, B., Studer, B., Widmer, F., and Kölliker, R. 2006. QTL analysis of seed yield components in red clover (Trifolium pratense L.). Theor. Appl. Genet. 112: 536–545.
  • Herrmann, D., Boller, B., Studer, B., Widmer, F., and Kölliker, R. 2008. Improving persistence in red clover: Insights from QTL analysis and comparative phenotypic evaluation. Crop Sci. 48: 269–277.
  • Herrmann, D., Boller, B., Widmer, F., and Kölliker, R. 2005. Optimization of bulked AFLP analysis and its application for exploring diversity of natural and cultivated populations of red clover. Genome 48: 474–486.
  • Hill Jr, R.R., Shenk, J.S., and Barnes, R.F. 1988. Breeding for yield and quality. In: Alfalfa and Alfalfa Improvement. pp. 809–825. Hanson, A.A., Barnes, D.K. and Hill Jr, R.R. (eds.), Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America.
  • Hofmann, R.W. and Jahufer, M.Z. Z. 2011. Tradeoff between biomass and flavonoid accumulation in white clover reflects contrasting plant strategies. PLoS ONE 6: e18949.
  • Holland, J.B. and Bingham, E.T. 1994. Genetic improvement for yield and fertility of alfalfa cultivars representing different eras of breeding. Crop Sci. 34: 953–957.
  • Hollingsworth, C.R., Gray, F.A., and Groose, R.W. 2005. Evidence for the heritability of resistance to brown root rot of alfalfa, caused by Phoma sclerotioides. Can. J. Plant Path. 27: 64–70.
  • Hotchkiss, J.R., Smith, S.E., and Miller, W.B. 1996. Persistence and single-plant productivity in nondormant alfalfa. Crop Sci. 36: 336–340.
  • Hoveland, C.S., Bouton, J.H., and Durham, R.G. 1999. Fungal endophyte effects on production of legumes in association with tall fescue. Agronomy J. 91: 897–902.
  • Hua, Y., Zhang, B.X., Cai, H., Li, Y., Bai, X., Ji, W., Wang, Z.Y., and Zhu, Y.M. 2012. Stress-inducible expression of GsSAMS2 enhances salt tolerance in transgenic Medicago sativa. Afr. J. Biotechnol. 11: 4030–4038.
  • Humphries, A.W. 2012. Future applications of lucerne for efficient livestock production in southern Australia. Crop Pasture Sci. 63: 909–917.
  • Hussain, S.W., Williams, W.M., Mercer, C.F., and White, D.W. R. 1997. Transfer of clover cyst nematode resistance from Trifolium nigrescens Viv. to T. repens L. by interspecific hybridisation. Theor. Appl. Genet. 95: 1274–1281.
  • Huyghe, C. 2003. Les fourrages et la production de protéines. Fourrages 174: 145–162.
  • Irwin, J.A. G., Aitken, K.S., Mackie, J.M., and Musial, J.M. 2006. Genetic improvement of lucerne for anthracnose (Colletotrichum trifolii) resistance. Australas. Plant Path. 35: 573–579.
  • Irwin, J.A. G. and Armour, D. 2014. Improving alfalfa resistance to biotic stresses. Legume Perspect. 4: 25–26.
  • Irwin, J.A. G., Armour, D.J., Pepper, P.M., and Lowe, D.F. 2010. Heterosis in lucerne testcrosses with Medicago arborea introgressions and Omani landraces and their performance in synthetics. Crop Pasture Sci. 61:450–463.
  • Irwin, J.A. G., Lloyd, D.L., and Lowe, K.F. 2001. Lucerne biology and genetic improvement - An analysis of past activities and future goals in Australia. Aust. J. Agric. Res. 52: 699–712.
  • Isobe, S., Klimenko, I., Ivashuta, S., Gau, M., and Kozlov, N.N. 2003. First RFLP linkage map of red clover (Trifolium pratense L.) based on cDNA probes and its transferability to other red clover germplasm. Theor. Appl. Genet. 108: 105–112.
  • Isobe, S., Kölliker, R., Hisano, H., Sasamoto, S., Wada, T., Klimenko, I., Okumura, K., and Tabata, S. 2009. Construction of a consensus linkage map for red clover (Trifolium pratense L.). BMC Plant Biol. 9: 57.
  • Isobe, S., Sawai, A., Yamaguchi, H., Gau, M., and Uchiyama, K. 2002. Breeding potential of the backcross progenies of a hybrid between Trifolium medium × T. pratense to T. pratense. Can. J. Plant Sci. 82: 395–399.
  • Isobe, S.N., Hisano, H., Sato, S., Hirakawa, H., Okumura, K., Shirasawa, K., Sasamoto, S., Watanabe, A., Wada, T., Kishida, Y., Tsuruoka, H., Fujishiro, T., Yamada, M., Kohara, M., and Tabata, S. 2012. Comparative genetic mapping and discovery of linkage disequilibrium across linkage groups in white clover (Trifolium repens L.). Genes Genom. Genet. 2: 607–617.
  • Izumi, Y., Kono, Y., Yamauchi, A., and Iijima, M. 1997. Genotypic variation in the development of seminal root system of rice under different culture conditions in vitro. Jap. J. Crop Sci. 66: 427–435.
  • Jahufer, M.Z. Z., Cooper, M., Ayres, J.F., and Bray, R.A. 2002. Identification of research to improve the efficiency of breeding strategies for white clover in Australia - A review. Aust. J. Agric. Res. 53: 239–257.
  • Jahufer, M.Z. Z., Cooper, M., Bray, R.A., and Ayres, J.F. 1999. Evaluation of white clover (Trifolium repens L.) populations for summer moisture stress adaptation in Australia. Aust. J. Agric. Res. 50: 561–574.
  • Jahufer, M.Z. Z., Dunn, A., Baird, I., Ford, J.L., Griffiths, A.G., Jones, C.S., Woodfield, D.R., and Barrett, B.A. 2013. Genotypic variation for morphological traits in a white clover mapping population evaluated across two environments and three years. Crop Sci. 53: 460–472.
  • Jahufer, M.Z. Z. and Gawler, F.I. 2000. Genotypic variation for seed yield components in white clover (Trifolium repens L.). Aust. J. Agric. Res. 51: 657–663.
  • Jahufer, M.Z. Z., Nichols, S.N., Crush, J.R., Ouyang, L., Dunn, A., Ford, J.L., Care, D.A., Griffiths, A.G., Jones, C.S., Jones, C.G., and Woodfield, D.R. 2008. Genotypic variation for root trait morphology in a white clover mapping population grown in sand. Crop Sci. 48: 487–494.
  • Jannink, J.-L., Lorenz, A.J., and Iwata, H. 2010. Genomic selection in plant breeding: From theory to practice. Brief. Funct. Genomics 9: 166–177.
  • Jarillo, J.A. and Piñeiro, M. 2011. Timing is everything in plant development. The central role of floral repressors. Plant Sci. 181: 364–378.
  • Jenczewski, E., Prosperi, J.M., and Ronfort, J. 1999. Evidence for gene flow between wild and cultivated Medicago sativa (Leguminosae) based on allozyme markers and quantitative traits. Am. J. Bot. 86: 677–687.
  • Jiang, Y.X., Zareh, N., Walker, G.P., and Teuber, L.R. 2003. Characterization of alfalfa germplasm expressing resistance to silverleaf whitefly, Bemisia argentifolii. J. Appl. Entomol. 127: 447–457.
  • Jin, T., Chang, Q., Li, W., Yin, D., Li, Z., Wang, D., Liu, B., and Liu, L. 2010. Stress-inducible expression of GmDREB1 conferred salt tolerance in transgenic alfalfa. Plant Cell Tiss. Org. Cult. 100: 219–227.
  • Johnson, D.W., Smith, S.E., and Dobrenz, A.K. 1992a. Genetic and phenotypic relationships in response to NaCl at different developmental stages in alfalfa. Theor. Appl. Genet. 83: 833–838.
  • Johnson, D.W., Smith, S.E., and Dobrenz, A.K. 1992b. Selection for increased forage yield in alfalfa at different NaCl levels. Euphytica 60: 27–35.
  • Jones, E.S., Hughes, L.J., Drayton, M.C., Abberton, M.T., Michaelson-Yeates, T.P. T., Bowen, C., and Forster, J.W. 2003. An SSR and AFLP molecular marker-based genetic map of white clover (Trifolium repens L.). Plant Sci. 165: 531–539.
  • Jones, R.A. C. 2013. Virus diseases of perennial pasture legumes in Australia: Incidences, losses, epidemiology, and management. Crop Pasture Sci. 64: 199–215.
  • Juan, N.A., Sheaffer, C.C., Barnes, D.K., Swanson, D.R., and Halgerson, J.H. 1993. Leaf and stem traits and herbage quality of multifoliolate alfalfa. Agron. J. 85: 1121–1127.
  • Julier, B. 1996. Traditional seed maintenance and origins of the French lucerne landraces. Euphytica 92: 353–357.
  • Julier, B. 2012. Alfalfa breeding benefits from genetic analyses on Medicago truncatula. In: Proceedings of the 7th International Symposium on the Molecular Breeding of Forage and Turf. Salt Lake City, Utah, USA, June 4-7, 2012. pp. 17–19. Bushman, B.S. and Spangenberg, G.C. (eds.), Washington: USDA-ARS.
  • Julier, B., Barre, P., and Debellé, F. 2014. Genome sequencing of model and forage legume species: consequences for genetic studies. In: Quantitative Traits Breeding for Multifunctional Grasslands and Turf. . Sokolović, D., Huyghe, C. and Radović, J. (eds.), Dordrecht, The Netherlands: Springer (in press).
  • Julier, B., Bournoville, R., Landré, B., Ecalle, C., and Carré, S. 2004. Genetic analysis of lucerne (Medicago sativa L.) seedling resistance to pea aphid (Acyrthosiphon pisum Harris). Euphytica 138: 133–139.
  • Julier, B., Flajoulot, S., Barre, P., Cardinet, G., Santoni, S., Huguet, T., and Huyghe, C. 2003. Construction of two genetic linkage maps in cultivated tetraploid alfalfa (Medicago sativa) using microsatellite and AFLP markers. BMC Plant Biol. 3: 9.
  • Julier, B., Guy, P., Castillo-Acuna, C., Caubel, G., Ecalle, C., Esquibet, M., Furstoss, V., Huyghe, C., Lavaud, C., Porcheron, A., Pracros, P., and Raynal, G. 1996. Genetic variation for disease and nematode resistances and forage quality in perennial diploid and tetraploid lucerne populations (Medicago sativa L.). Euphytica 91: 241–250.
  • Julier, B., Huyghe, C., and Ecalle, C. 2000. Within- and among-cultivar genetic variation in alfalfa: Forage quality, morphology, and yield. Crop Sci. 40: 365–369.
  • Jung, C. and Müller, A.E. 2009. Flowering time control and applications in plant breeding. Trends Plant Sci. 14: 563–573.
  • Justes, E., Thiébeau, P., Cattin, G., Larbre, D., and Nicolardot, B. 2001. Libération d’azote après retournement de luzerne. Un effet sur deux campagnes. Perspectives Agricoles. 264: 22–28.
  • Kalia, R.K., Rai, M.K., Kalia, S., Singh, R., and Dhawan, A.K. 2011. Microsatellite markers: An overview of the recent progress in plants. Euphytica 177: 309–334.
  • Kanbe, M., Mizukami, Y., and Fujimoto, F. 2002. Improvement of resistance to sclerotinia crown and stem rot of alfalfa through phenotypic recurrent selection. Japan Agr. Res. Quart. 36: 1–5.
  • Kang, Y., Han, Y., Torres-Jerez, I., Wang, M., Tang, Y., Monteros, M., and Udvardi, M. 2011. System responses to long-term drought and re-watering of two contrasting alfalfa varieties. Plant J. 68: 871–889.
  • Karlen, D.L., Lemunyon, J.L., and Singer, J.W. 2007. Forages for conservation and improved soil quality. In: Forages. Volume 34. The Science of Grassland Agriculture.6th ed. pp. 149–166. Barnes, R.F., Nelson, C.J., Moore, K.J. and Collins, M. (eds.), Ames, Iowa: Blackwell Publishing Professional.
  • Kendall, W.A., Pederson, G.A., and Hill, R.R. 1982. Root size estimates of red clover and alfalfa based on electrical capacitance and root diameter measurements. Grass Forage Sci. 37: 253–256.
  • Khu, D.M., Reyno, R., Brummer, E. C., and Monteros, M.J. 2012. Screening methods for aluminum tolerance in alfalfa. Crop Sci. 52: 161–167.
  • Khu, D.M., Reyno, R., Han, Y., Zhao, P.X., Bouton, J.H., Brummer, E.C., and Monteros, M.J. 2013. Identification of aluminum tolerance quantitative trait loci in tetraploid alfalfa. Crop Sci. 53: 148–163.
  • Kidwell, K.K., Hartweck, L.M., Yandell, B.S., Crump, P.M., Brummer, J.E., Moutray, J., and Osborn, T.C. 1999. Forage yields of alfalfa populations derived from parents selected on the basis of molecular marker diversity. Crop Sci. 39: 223–227.
  • Kimbeng, C.A. and Bingham, E.T. 1998. Forage yield potential of alfalfa plants of varying crown size from old stands. Plant Breed. 117: 251–254.
  • Kingston-Smith, A.H., Marshall, A.H., and Moorby, J.M. 2013. Breeding for genetic improvement of forage plants in relation to increasing animal production with reduced environmental footprint. Animal 7: 79–88.
  • Kiss, G.B., Csanádi, G., Kálmán, K., Kaló, P., and Ökrész, L. 1993. Construction of a basic genetic map for alfalfa using RFLP, RAPD, isozyme and morphological markers. Mol. Gen. Genet. 238: 129–137.
  • Kitch, L.W., Shade, R.E., Nyquist, W.E., and Axtell, J.D. 1985. Inheritance of density of erect glandular trichomes in the genus Medicago. Crop Sci. 25: 607–611.
  • Klimenko, I., Razgulayeva, N., Gau, M., Okumura, K., Nakaya, A., Tabata, S., Kozlov, N.N., and Isobe, S. 2010. Mapping candidate QTLs related to plant persistency in red clover. Theor. Appl. Genet. 120: 1253–1263.
  • Kölliker, R., Herrmann, D., Boller, B., and Widmer, F. 2003. Swiss Mattenklee landraces, a distinct and diverse genetic resource of red clover (Trifolium pratense L.). Theor. Appl. Genet. 107: 306–315.
  • Kölliker, R., Jones, E.S., Drayton, M.C., Dupal, M.P., and Forster, J.W. 2001a. Development and characterisation of simple sequence repeat (SSR) markers for white clover (Trifolium repens L.). Theor. Appl. Genet. 102: 416–424.
  • Kölliker, R., Jones, E.S., Jahufer, M.Z. Z., and Forster, J.W. 2001b. Bulked AFLP analysis for the assessment of genetic diversity in white clover (Trifolium repens L.). Euphytica 121: 305–315.
  • Kouamé, C.N., Quesenberry, K.H., Wofford, D.S., and Dunn, R.A. 1998. Genetic diversity for root-knot nematode resistance in white dover and related species. Genet. Resour. Crop Evol. 45: 1–8.
  • Lamb, J.F. S., Jung, H.J. G., and Riday, H. 2012. Harvest impacts on alfalfa stem neutral detergent fiber concentration and digestibility and cell wall concentration and composition. Crop Sci. 52: 2402–2412.
  • Lamb, J.F. S., Jung, H.J. G., Sheaffer, C.C., and Samac, D.A. 2007. Alfalfa leaf protein and stem cell wall polysaccharide yields under hay and biomass management systems. Crop Sci. 47: 1407–1415.
  • Lamb, J.F. S., Russelle, M.P., and Fenton, D.M. 2008. Field-based selection method creates alfalfa populations that differ in nitrate nitrogen uptake. Crop Sci. 48: 450–457.
  • Lamb, J.F. S., Samac, D.A., Barnes, D.K., and Henjum, K.I. 2000. Increased herbage yield in alfalfa associated with selection for fibrous and lateral roots. Crop Sci. 40: 693–699.
  • Lamb, J.F. S., Sheaffer, C.C., Rhodes, L.H., Sulc, R.M., Undersander, D.J., and Brummer, E.C. 2006. Five decades of alfalfa cultivar improvement: Impact on forage yield, persistence, and nutritive value. Crop Sci. 46: 902–909.
  • Lamb, J.F. S., Sheaffer, C.C., and Samac, D.A. 2003. Population density and harvest maturity effects on leaf and stem yield in alfalfa. Agron. J. 95: 635–641.
  • Landré, B., Bournoville, R., Aupinel, P., Carré, S., Badenhausser, I., Girousse, C., and Julier, B. 1999. Ranking of some lucerne and medics cultivars for pea aphid resistance. In: Lucerne and Medics for the XXI Century. Proceedings of the XIII Eucarpia Medicago spp. Group Meeting. pp. 231–238. Veronesi, F. and Rosellini, D. (eds.), Perugia, Italy: University of Perugia.
  • Lane, L.A., Ayres, J.F., Lovett, J.V., and Murison, R.D. 2000. Morphological characteristics and agronomic merit of white clover (Trifolium repens L.) populations collected from northern New South Wales. Aust. J. Agric. Res. 51: 985–997.
  • Lauer, J.G., Coors, J.G., and Flannery, P.J. 2001. Forage yield and quality of corn cultivars developed in different eras. Crop Sci. 41: 1449–1455.
  • Le Signor, C., Savois, V., Aubert, G., Verdier, J., Nicolas, M., Pagny, G., Moussy, F., Sanchez, M., Baker, D., Clarke, J., and Thompson, R. 2009. Optimizing TILLING populations for reverse genetics in Medicago truncatula. Plant Biotechnol. J. 7: 430–441.
  • Lee, M.R. F., Olmos Colmenero, J.D. J., Winters, A.L., Scollan, N.D., and Minchin, F.R. 2006. Polyphenol oxidase activity in grass and its effect on plant-mediated lipolysis and proteolysis of Dactylis glomerata (cocksfoot) in a simulated rumen environment. J. Sci. Food Agric. 86: 1503–1511.
  • Lehmann, J., Meister, E., Gutzwiller, A., Jans, F., Charles, J.P., and Blum, J. 1991. Peut-on utiliser des variétés de trèfle blanc (Trifolium repens L.) à forte teneur en acide cyanhydrique? Rev. Suisse Agric. 23: 107–112.
  • Leone, A.P. and Steduto, P. (eds.) 1998. Proceedings of 1st Transnational Meeting on Salinity as Limiting Factor for Agricultural Productivity in the Mediterranean Basin, 24–25 March 1997. Bari, Italy: Mediterranean Agronomic Institute.
  • Lesins, K.A. and Lesins, I. 1979. Genus Medicago (Leguminosae). A Taxogenetic Study. The Hague, The Netherlands: Dr W Junk Publishers. 228pp.
  • Leyser, O. 2003. Regulation of shoot branching by auxin. Trends Plant Sci. 8: 541–545.
  • Li, X., Acharya, A., Farmer, A.D., Crow, J.A., Bharti, A.K., Kramer, R.S., Wei, Y., Han, Y., Gou, J., May, G.D., Monteros, M.J., and Brummer, E.C. 2012. Prevalence of single nucleotide polymorphism among 27 diverse alfalfa genotypes as assessed by transcriptome sequencing. BMC Genom. 13: 568.
  • Li, X. and Brummer, E.C. 2012. Applied genetics and genomics in alfalfa breeding. Agronomy 2: 40–61.
  • Li, X., Han, Y., Wei, Y., Acharya, A., Farmer, A.D., Ho, J., Monteros, M.J., and Brummer, E.C. 2014. Development of an alfalfa SNP array and its use to evaluate patterns of population structure and linkage disequilibrium. PLoS ONE 9: e84329.
  • Li, X., Wei, Y., Moore, K.J., Michaud, R., Viands, D.R., Hansen, J.L., Acharya, A., and Brummer, E.C. 2011. Association mapping of biomass yield and stem composition in a tetraploid alfalfa breeding population. Plant Genome 4: 24–35.
  • Lorenz, A.J., Chao, S., Asoro, F.G., Heffner, E.L., Hayashi, T., Iwata, H., Smith, K.P., Sorrells, M.E., and Jannink, J.-L. 2011. Genomic selection in plant breeding: Knowledge and prospects. Adv. Agron. 110: 77–123.
  • Lötscher, M. and Hay, M.J. M. 1996. Distribution of mineral nutrient from nodal roots of Trifolium repens: Genotypic variation in intra-plant allocation of 32P and 45Ca. Physiol. Plant. 97: 269–276.
  • Lötscher, M. and Hay, M.J. M. 1997. Genotypic differences in physiological integration, morphological plasticity and utilization of phosphorus induced by variation in phosphate supply in Trifolium repens. J. Ecol. 85: 341–350.
  • Lucero, D.W., Grieu, P., and Guckert, A. 2000. Water deficit and plant competition effects on growth and water-use efficiency of white clover (Trifolium repens, L.) and ryegrass (Lolium perenne, L.). Plant Soil 227: 1–15.
  • Lüscher, A., Connolly, J., and Jacquard, P. 1992. Neighbour specificity between Lolium perenne and Trifolium repens from a natural pasture. Oecologia 91: 404–409.
  • Lüscher, A., Stäheli, B., Braun, R., and Nösberger, J. 2001. Leaf area, competition with grass, and clover cultivar: Key factors to successful overwintering and fast regrowth of white clover (Trifolium repens L.) in spring. Ann. Bot. 88: 725–735.
  • Ma, T.T., Christie, P., Luo, Y.M., and Teng, Y. 2013. Phthalate esters contamination in soil and plants on agricultural land near an electronic waste recycling site. Environ. Geochem. Health 35: 465–476.
  • Maamouri, A., Louarn, G., and Julier, B. 2014. Alfalfa genetic variation for biomass production in pure and mixed stands. In: Quantitative Traits Breeding for Multifunctional Grasslands and Turf. Sokolović, D., Huyghe, C. and Radović, J. (eds.), Dordrecht, The Netherlands: Springer (in press). doi: 10.1007/978-94-017-9044-4_49
  • Mackie, J.M. and Irwin, J.A. G. 1998. The proportion of individual lucerne plants resistant to Phytophthora medicaginis and Colletotrichum trifolii in Australian cultivars. Aust. J. Exp. Agr. 38: 41–44.
  • Mackie, J.M., Musial, J.M., Armour, D.J., Phan, H.T. T., Ellwood, S.E., Aitken, K.S., and Irwin, J.A. G. 2007. Identification of QTL for reaction to three races of Colletotrichum trifolii and further analysis of inheritance of resistance in autotetraploid lucerne. Theor. Appl. Genet. 114: 1417–1426.
  • Mackie, J.M., Pepper, P.M., Lowe, K.F., Musial, J.M., and Irwin, J.A. G. 2005. Potential to increase yield in lucerne (Medicago sativa subsp. sativa) through introgression of Medicago sativa subsp. falcata into Australian adapted material. Aust. J. Agric. Res. 56: 1365–1372.
  • Madril, C.M., Pierce, C.A., and Ray, I.M. 2008. Heterosis among hybrids derived from genetically improved and unimproved alfalfa germplasm. Crop Sci. 48: 1787–1792.
  • Marshall, A.H. 1995. Peduncle characteristics, inflorescence survival and reproductive growth of white clover (Trifolium repens L.). Grass Forage Sci. 50: 324–330.
  • Marshall, A.H., Fothergill, M., Rees, E., Sizer-Coverdale, E., and Collins, R.P. 2013. Dry-matter yield of Lotus varieties in grass-white clover mixtures in a low-fertility soil. Grass Forage Sci. 69: 294–302.
  • Marshall, A.H., Lowe, M., and Vale, J. 2012. Improved persistence of red clover (Trifolium pratense L.) varieties in mixed swards. In: Grassland - a European Resource? Proceedings of the 24th General Meeting of the European Grassland Federation, Lublin, Poland, 3-7 June 2012. (Grassland Science in Europe, Volume 17). pp. 73–75. Golinski, P., Warda, M. and Stypinski, P. (eds.), Poznan: Polish Grassland Society.
  • Marshall, A.H., Michaelson-Yeates, T.P., Aluka, P., and Meredith, M. 1995. Reproductive characters of interspecific hybrids between Trifolium repens L. and T.nigrescens Viv. Heredity 74: 136–145.
  • Marshall, A.H., Michaelson-Yeates, T.P. T., and Abberton, M.T. 2008. Introgression of reproductive traits from Trifolium nigrescens increases the seed yield of white clover (T. repens). Plant Breed. 127: 597–601.
  • Marshall, A.H., Michaelson-Yeates, T.P. T., Abberton, M.T., Williams, A., and Powell, H.G. 2002a. Variation for reproductive and agronomic traits among T. repens × T. nigrescens third generation backcross hybrids in the field: Reproductive and agronomic traits among BC3 hybrids of T. repens × T. nigrescens. Euphytica 126: 195–201.
  • Marshall, A.H., Rascle, C., Abberton, M.T., Michaelson-Yeates, T.P. T., and Rhodes, I. 2001. Introgression as a route to improved drought tolerance in white clover (Trifolium repens L.). J. Agron. Crop Sci. 187: 11–18.
  • Marshall, A.H., Williams, A., Abberton, M.T., Michaelson-Yeates, T.P. T., and Powell, H.G. 2003. Dry matter production of white clover (Trifolium repens L.), Caucasian clover (T. ambiguum M. Bieb.) and their associated hybrids when grown with a grass companion over 3 harvest years. Grass Forage Sci. 58: 63–69.
  • Marshall, A.H., Williams, T.A., Abberton, M.T., Michaelson-Yeates, T.P. T., Olyott, P., and Powell, H.G. 2004. Forage quality of white clover (Trifolium repens L.) × Caucasian clover (T. ambiguum M. Bieb.) hybrids and their grass companion when grown over three harvest years. Grass Forage Sci. 59: 91–99.
  • Marshall, A.H., Williams, T.A., Olyott, P., Abberton, M.T., and Michaelson-Yeates, T.P. T. 2005. Forage yield and persistency of Trifolium repens × Trifolium nigrescens hybrids under rotational sheep grazing. Grass Forage Sci. 60: 68–73.
  • Marshall, A.H., Williams, T.A., Powell, H.G., Abberton, M.T., and Michaelson-Yeates, T.P. T. 2002b. Forage yield and persistency of Trifolium repens × Trifolium nigrescens hybrids when sown with a perennial ryegrass companion. Grass Forage Sci. 57: 232–238.
  • Maureira-Butler, I.J., Udall, J.A., and Osborn, T.C. 2007. Analyses of a multi-parent population derived from two diverse alfalfa germplasms: Testcross evaluations and phenotype-DNA associations. Theor. Appl. Genet. 115: 859–867.
  • Maureira, I.J., Ortega, F., Campos, H., and Osborn, T.C. 2004. Population structure and combining ability of diverse Medicago sativa germplasms. Theor. Appl. Genet. 109: 775–782.
  • Mayer, K.F. X., Waugh, R., Langridge, P., Close, T.J., Wise, R.P., Graner, A., Matsumoto, T., Sato, K., Schulman, A., Ariyadasa, R., Schulte, D., Poursarebani, N., Zhou, R., Steuernagel, B., Mascher, M., Scholz, U., Shi, B., Madishetty, K., Svensson, J.T., Bhat, P., Moscou, M., Resnik, J., Muehlbauer, G.J., Hedley, P., Liu, H., Morris, J., Frenkel, Z., Korol, A., Bergès, H., Taudien, S., Felder, M., Groth, M., Platzer, M., Himmelbach, A., Lonardi, S., Duma, D., Alpert, M., Cordero, F., Beccuti, M., Ciardo, G., Ma, Y., Wanamaker, S., Cattonaro, F., Vendramin, V., Scalabrin, S., Radovic, S., Wing, R., Morgante, M., Nussbaumer, T., Gundlach, H., Martis, M., Poland, J., Pfeifer, M., Moisy, C., Tanskanen, J., Zuccolo, A., Spannagl, M., Russell, J., Druka, A., Marshall, D., Bayer, M., Swarbreck, D., Sampath, D., Ayling, S., Febrer, M., Caccamo, M., Tanaka, T., Wannamaker, S., Schmutzer, T., Brown, J.W. S., Fincher, G.B., and Stein, N. 2012. A physical, genetic and functional sequence assembly of the barley genome. Nature 491: 711–716.
  • McCallum, C.M., Comai, L., Greene, E.A., and Henikoff, S. 2000. Targeting Induced Local Lesions IN Genomes (TILLING) for plant functional genomics. Plant Physiol. 123: 439–442.
  • McCord, P.H. 2012. Relationship of resistance to Meloidogyne chitwoodi (race 2) and M. hapla in alfalfa. J. Nematol. 44: 387–390.
  • McCurdy, J.D., McElroy, J.S., and Flessner, M.L. 2013. Differential response of four Trifolium species to common broadleaf herbicides: implications for mixed grass-legume swards. Weed Technol. 27: 123–128.
  • McKenzie, J.S., Paquin, R., and Duke, S.H. 1988. Cold and heat tolerance. In: Alfalfa and Alfalfa Improvement. pp. 259–302. Hanson, A.A., Barnes, D.K. and Hill Jr, R.R. (eds.), Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America.
  • McManus, M.T., Laing, W.A., Watson, L.M., Markwick, N., Voisey, C.R., and White, D.W. R. 2005. Expression of the soybean (Kunitz) trypsin inhibitor in leaves of white clover (Trifolium repens L.). Plant Sci. 168: 1211–1220.
  • McSteen, P. and Leyser, O. 2005. Shoot branching. Annu. Rev. Plant Biol. 56: 353–374.
  • Meiss, H., Médiène, S., Waldhardt, R., Caneill, J., and Munier-Jolain, N. 2010. Contrasting weed species composition in perennial alfalfas and six annual crops: Implications for integrated weed management. Agron. Sust. Dev. 30: 657–666.
  • Mercer, C., Watson, R.N., and Woodfield, D.R. 2005. Performance of nematode-resistant white clover in field trials. Proc. N. Z. Grassland Assoc. 67: 29–34.
  • Mercer, C.F. 2005. Resistance in Trifolium repens and T. semipilosum to Meloidogyne trifoliophila (Nematoda: Tylenchida) is temperature sensitive. N. Z. J. Agric. Res. 48: 339–343.
  • Mercer, C.F., Bell, N.L., and Yeates, G.W. 2008. Plant-parasitic nematodes on pasture in New Zealand. Australas. Plant Path. 37: 279–288.
  • Mercer, C.F. and Miller, K.J. 1997. Evaluation of 15 Trifolium spp. and of Medicago sativa as hosts of four Meloidogyne spp. found in New Zealand. J. Nematol. 29: 673–676.
  • Mercer, C.F., Van Den Bosch, J., and Miller, K.J. 2000. Progress in recurrent selection and in crossing cultivars with white clover resistant to the clover root-knot nematode Meloidogyne trifoliophila. N. Z. J. Agric. Res. 43: 41–48.
  • Mercer, C.F. and Watson, R.N. 2007. Effects of nematicides and plant resistance on white clover performance and seasonal populations of nematodes parasitizing white clover in grazed pasture. J. Nematol. 39: 298–304.
  • Michaelson-Yeates, T.P. T., Marshall, A., Abberton, M.T., and Rhodes, I. 1997. Self-compatibility and heterosis in white clover (Trifolium repens L.). Euphytica 94: 341–348.
  • Michaud, R., Lehman, W.F., and Rumbaugh, M.D. 1988. World distribution and historical development. In: Alfalfa and Alfafa Improvement. pp. 25–92. Hanson, A.A., Barnes, D.K. and Hill Jr, R.R. (eds.), Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America.
  • Michelmore, R.W., Paran, I., and Kesseli, R.V. 1991. Identification of markers linked to disease-resistance genes by bulked segregant analysis: A rapid method to detect markers in specific genomic regions by using segregating populations. Proc. Natl. Acad. Sci. USA 88: 9828–9832.
  • Min, B.R., Barry, T.N., Attwood, G.T., and McNabb, W.C. 2003. The effect of condensed tannins on the nutrition and health of ruminants fed fresh temperate forages: a review. Anim. Feed Sci. Technol. 106: 3–19.
  • Montpetit, J.M. and Coulman, B.E. 1991. Responses to divergent selection for adventitious root growth in red clover (Trifolium pratense L.). Euphytica 58: 119–127.
  • Morin, C., Bélanger, G., Tremblay, G.F., Bertrand, A., Castonguay, Y., Drapeau, R., Michaud, R., Berthiaume, R., and Allard, G. 2011. Diurnal variations of nonstructural carbohydrates and nutritive value in alfalfa. Crop Sci. 51: 1297–1306.
  • Mousset-Déclas, C. 1995. Les trèfles ou le genre Trifolium. In: Ressources Génétiques des Plantes Fourragères et à Gazon. pp. 177–211. Prosperi, J.M., Guy, P. and Balfourier, F. (eds.), Paris: BRG, INRA.
  • Muller, M.H., Poncet, C., Prosperi, J.M., Santoni, S., and Ronfort, J. 2006. Domestication history in the Medicago sativa species complex: Inferences from nuclear sequence polymorphism. Mol. Ecol. 15: 1589–1602.
  • Muller, M.H., Prosperi, J.M., Santoni, S., and Ronfort, J. 2003. Inferences from mitochondrial DNA patterns on the domestication history of alfalfa (Medicago sativa). Mol. Ecol. 12: 2187–2199.
  • Musial, J.M., Aitken, K.S., Mackie, J.M., and Irwin, J.A. G. 2005. A genetic linkage map in autotetraploid lucerne adapted to northern Australia, and use of the map to identify DNA markers linked to resistance to Phytophthora medicaginis. Aust. J. Agric. Res. 56: 333–344.
  • Musial, J.M., Lowe, K.F., Mackie, J.M., Aitken, K.S., and Irwin, J.A. G. 2006. DNA markers linked to yield, yield components, and morphological traits in autotetraploid lucerne (Medicago sativa L.). Aust. J. Agric. Res. 57: 801–810.
  • Musial, J.M., Mackie, J.M., Armour, D.J., Phan, H.T. T., Ellwood, S.E., Aitken, K.S., and Irwin, J.A. G. 2007. Identification of QTL for resistance and susceptibility to Stagonospora meliloti in autotetraploid lucerne. Theor. Appl. Genet. 114: 1427–1435.
  • Nagy, I., Barth, S., Mehenni-Ciz, J., Abberton, M.T., and Milbourne, D. 2013. A hybrid next generation transcript sequencing-based approach to identify allelic and homeolog-specific single nucleotide polymorphisms in allotetraploid white clover. BMC Genom. 14: 100.
  • Nyfeler, D., Huguenin-Elie, O., Suter, M., Frossard, E., Connolly, J., and Lüscher, A. 2009. Strong mixture effects among four species in fertilized agricultural grassland led to persistent and consistent transgressive overyielding. J. Appl. Ecol. 46: 683–691.
  • Odorizzi, A., Basigalup, D., Arolfo, V., and Balzarini, M. 2008. Root traits variability in alfalfa (Medicago sativa L.) populations with a high number of lateral roots. AgriScientia 25: 65–73.
  • Oh, M. and Lee, I. 2007. Historical perspective on breakthroughs in flowering field. J. Plant Biol. 50: 249–256.
  • Oliveira, J.A., López, J.E., and Palencia, P. 2013. Agromorphological characterization, cyanogenesis and productivity of accessions of white clover (Trifolium repens L.) collected in northern Spain. Czech J. Genet. Plant Breed. 49: 24–35.
  • Ortega, F.M. and Rhodes, I. 1996. Characteristics associated with mortality in red clover (Trifolium pratense L.). In: Legumes in Sustainable Farming Systems : Proceedings of the Joint Conference of the British Grassland Society and the Sustainable Farming Systems Initiative, held at SAC, Craibstone, Aberdeen, 2–4 September 1996. pp. 92–93. Yonnie, D. (ed.), Reading, UK: British Grassland Society.
  • Paape, T., Zhou, P., Branca, A., Briskine, R., Young, N., and Tiffin, P. 2012. Fine-scale population recombination rates, hotspots, and correlates of recombination in the Medicago truncatula genome. Genome Biol. Evol. 4: 726–737.
  • Pagnotta, M.A., Annicchiarico, P., Farina, A., and Proietti, S. 2011. Characterizing the molecular and morphophysiological diversity of Italian red clover. Euphytica 179: 393–404.
  • Pang, J., Yang, J., Ward, P., Siddique, K.H. M., Lambers, H., Tibbett, M., and Ryan, M. 2011. Contrasting responses to drought stress in herbaceous perennial legumes. Plant Soil 348: 299–314.
  • Panter, S., Chu, P.G., Ludlow, E., Garrett, R., Kalla, R., Jahufer, M.Z. Z., de Lucas Arbiza, A., Rochfort, S., Mouradov, A., Smith, K.F., and Spangenberg, G. 2012. Molecular breeding of transgenic white clover (Trifolium repens L.) with field resistance to Alfalfa mosaic virus through the expression of its coat protein gene. Transgenic Res. 21: 619–632.
  • Papadopoulos, Y.A., Kimpinski, J., McRae, K.B., Christie, B.R., Gallant, C.E., and Fillmore, S.A. E. 2002. Invasion and reproduction by root-lesion nematode (Pratylenchus penetrans) differs among selected lines of red clover (Trifolium pratense). Phytoprotection 83: 41–45.
  • Parisod, C., Holderegger, R., and Brochmann, C. 2010. Evolutionary consequences of autopolyploidy. New Phytol. 186: 5–17.
  • Parry, M.L., Canziani, O.F., Palutikof, J.P., Linden, P.J. v. d., and Hanson, C.E. (eds.) 2007. Climate change 2007: Impacts, Adaptation and Vulnerability. Contribution of Working Group II to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. New York: Cambridge University Press. 976pp.
  • Parsons, A.J., Edwards, G.R., Newton, P.C. D., Chapman, D.F., Caradus, J.R., Rasmussen, S., and Rowarth, J.S. 2011. Past lessons and future prospects: Plant breeding for yield and persistence in cool-temperate pastures. Grass Forage Sci. 66: 153–172.
  • Pauly, L., Flajoulot, S., Garon, J., Julier, B., Béguier, V., and Barre, P. 2012. Detection of favorable alleles for plant height and crown rust tolerance in three connected populations of perennial ryegrass (Lolium perenne L.). Theor. Appl. Genet. 124: 1139–1153.
  • Pecetti, L. and Piano, E. 2005. Heritability of morphophysiological traits and inbreeding effects in grazing-type lucerne. Plant Breed. 124: 176–179.
  • Pecetti, L., Piano, E., and Romani, M. 2004. Effect of various plant factors on the expression of creeping-rootedness in lucerne (Medicago sativa L. complex). Euphytica 135: 89–97.
  • Pecetti, L., Romani, M., De Rosa, L., and Piano, E. 2008. Selection of grazing-tolerant lucerne cultivars. Grass Forage Sci. 63: 360–368.
  • Pecetti, L., Romani, M., and Piano, E. 2006. Persistence of morphologically diverse lucerne under continuous stocking and intensive grazing. Aust. J. Agric. Res. 57: 999–1007.
  • Pederson, G.A. and Windham, G.L. 1989. Resistance to Meloidogyne incognita in Trifolium interspecific hybrids and species related to white clover. Plant Dis. 73: 567–569.
  • Pederson, G.A., Brink, G.E., and Caradus, J.R. 1999. Growth of United States versus New Zealand white clover cultivars in diverse grasses in Mississippi, USA. N. Z. J. Agric. Res. 42: 115–123.
  • Pederson, G.A., Kendall, W.A., and Hill Jr., R.R. 1984. Effect of divergent selection for root weight on genetic variation for root and shoot characters in alfalfa. Crop Sci. 24: 570–573.
  • Pederson, G.A., and McLaughlin, M.R. 1994. Genetics of resistance to peanut stunt, clover yellow vein, and alfalfa mosaic viruses in white clover. Crop Sci. 34: 896–900
  • Peel, M.D., Waldron, B.L., Jensen, K.B., Chatterton, N.J., Horton, H., and Dudley, L.M. 2004. Screening for salinity tolerance in alfalfa: A repeatable method. Crop Sci. 44: 2049–2053.
  • Pembleton, K.G., Volenec, J.J., Rawnsley, R.P., and Donaghy, D.J. 2010. Partitioning of taproot constituents and crown bud development are affected by water deficit in regrowing alfalfa (Medicago sativa L.). Crop Sci. 50: 989–999.
  • Peterson, P.R., Sheaffer, C.C., and Hall, M.H. 1992. Drought effects on perennial forage legume yield and quality. Agron. J. 84: 774–779.
  • Pflieger, S., Lefebvre, V., and Causse, M. 2001. The candidate gene approach in plant genetics: A review. Mol. Breed. 7: 275–291.
  • Piano, E. and Annicchiarico, P. 1995. Interference effects in grass varieties grown as pure stand, complex mixture and binary mixture with white clover. J. Agron. Crop Sci. 174: 301–308.
  • Piano, E. and Pecetti, L. 2010. Minor legume species. In: Fodder Crops and Amenity Grasses. Handbook of Plant Breeding. pp. 477–500. Boller, B., Posselt, U.K. and Veronesi, F. (eds.), New York: Springer.
  • Piano, E., Valentini, P., Pecetti, L., and Romani, M. 1996. Evaluation of a lucerne germplasm collection in relation to traits conferring grazing tolerance. Euphytica 89: 279–288.
  • Pierre, J.B., Bogard, M., Herrmann, D., Huyghe, C., and Julier, B. 2011. A CONSTANS-like gene candidate that could explain most of the genetic variation for flowering date in Medicago truncatula. Mol. Breed. 28: 25–35.
  • Pierre, J.B., Huguet, T., Barre, P., Huyghe, C., and Julier, B. 2008. Detection of QTLs for flowering date in three mapping populations of the model legume species Medicago truncatula. Theor. Appl. Genet. 117: 609–620.
  • Poehlman, J.M. and Sleeper, D.A. 1995. Breeding Field Crops.4th ed. Ames, Iowa: Iowa State University Press. 494pp.
  • Porqueddu, C., Maltoni, S., and McIvor, J.G. 2005. Strategies to mitigate seasonality of production in grassland-based systems. In: Grassland: A Global Resource. pp. 111–122. McGilloway, D.A. (ed.), Wageningen, The Netherlands: Wageningen Academic Publishers.
  • Posselt, U.K. 2010. Breeding methods in cross-pollinated species. In: Fodder Crops and Amenity Grasses. Handbook of Plant Breeding. pp. 39–87. Boller, B., Posselt, U.K. and Veronesi, F. (eds.), New York: Springer.
  • Postnikova, O.A., Shao, J., and Nemchinov, L.G. 2013. Analysis of the alfalfa root transcriptome in response to salinity stress. Plant Cell Physiol. 54: 1041–1055.
  • Pratt, R.G. and Rowe, D.E. 2002. Enhanced resistance to Sclerotium rolfsii in populations of alfalfa selected for quantitative resistance to Sclerotinia trifoliorum. Phytopathology 92: 204–209.
  • Prosperi, J.M., Auricht, G., Génier, G., and R., J. 2001. Medics (Medicago L.). In: Plant Genetic Resources of Legumes in the Mediterranean. pp. 99–114. Maxted, N. and Bennett, S.J. (eds.), Dordrecht, The Netherlands: Kluwer Academic Publishers.
  • Prosperi, J.M., Jenczewski, E., Angevain, M., and Ronfort, J. 2006. Morphologic and agronomic diversity of wild genetic resources of Medicago sativa L. collected in Spain. Genet. Resour. Crop Evol. 53: 843–856.
  • Prosperi, J.M., Muller, M.H., Fourtier, S., Sampoux, J.P., and Ronfort, J. 2014. Alfalfa domestication history, genetic diversity and genetic resources. Legume Perspect. 4: 13–14.
  • Putterill, J., Laurie, R., and Macknight, R. 2004. It's time to flower: The genetic control of flowering time. Bioessays 26: 363–373.
  • Quiros, C.F. and Bauchan, G.R. 1988. The genus Medicago and the origin of the Medicago sativa complex. In: Alfalfa and Alfalfa Improvement. pp. 93–124. Hanson, A.A., Barnes, D.K. and Hill, R.R. , Jr. (eds.), Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America.
  • Raffaelli, D., and Mordue, A.J. 1990. The relative importance of molluscs and insects as selective grazers of acyanogenic white clover (Trifolium repens). J. Moll. Stud. 56: 37–45.
  • Ranger, C.M. and Hower, A.A. 2001. Role of the glandular trichomes in resistance of perennial alfalfa to the potato leafhopper (Homoptera: Cicadellidae). J. Econ. Entomol. 94: 950–957.
  • Ranger, C.M., Winter, R.E. K., Backus, E.A., Rottinghaus, G.E., Ellersieck, M.R., and Johnson, D.W. 2005. Discrimination by the potato leafhopper (Hemiptera: Cicadellidae) of host volatiles from resistant and susceptible alfalfa, Medicago sativa L. Environ. Entomol. 34: 271–280.
  • Rasmussen, J., Eriksen, J., Jensen, E.S., Esbensen, K.H., and Høgh-Jensen, H. 2007. In situ carbon and nitrogen dynamics in ryegrass-clover mixtures: Transfers, deposition and leaching. Soil Biol. Biochem. 39: 804–815.
  • Rasmussen, J., Søegaard, K., Pirhofer-Walzl, K., and Eriksen, J. 2012. N2-fixation and residual N effect of four legume species and four companion grass species. Eur. J. Agron. 36: 66–74.
  • Ratcliffe, R.H. and Elgin, J.H. , Jr. 1987. A seedling test to select for alfalfa weevil (Coleoptera: Curculionidae) resistance in alfalfa. J. Econ. Entomol. 80: 975–978.
  • Ravagnani, A., Abberton, M.T., and Skøt, L. 2012. Development of genomic resources in the species of Trifolium L. and its application in forage legume breeding. Agronomy 2: 116–131.
  • Ray, I.M., Segovia-Lerma, A., and Murray, L.W. 2004. Diallel analysis of carbon isotope discrimination and its association with forage yield among nine historically recognized alfalfa germplasms. Crop Sci. 44: 1970–1975.
  • Ray, I.M., Townsend, M.S., and Muncy, C.M. 1999a. Heritabilities and interrelationships of water-use efficiency and agronomic traits in irrigated alfalfa. Crop Sci. 39: 1088–1092.
  • Ray, I.M., Townsend, M.S., Muncy, C.M., and Henning, J.A. 1999b. Heritabilities of water-use efficiency traits and correlations with agronomic traits in water-stressed alfalfa. Crop Sci. 39: 494–498.
  • Real, D., Gordon, I.L., and Hodgson, J. 2000. Genetic advance estimates for red clover (Trifolium pratense) grown under spaced plant and sward conditions. J. Agric. Sci. 135: 11–17.
  • Rémus-Borel, W., Castonguay, Y., Cloutier, J., Michaud, R., Bertrand, A., Desgagnés, R., and Laberge, S. 2010. Dehydrin variants associated with superior freezing tolerance in alfalfa (Medicago sativa L.). Theor. Appl. Genet. 120: 1163–1174.
  • Reyno, R., Khu, D.M., Monteros, M.J., Bouton, J.H., Parrott, W., and Brummer, E. C. 2013. Evaluation of two transgenes for aluminum tolerance in alfalfa. Crop Sci. 53: 1581–1588.
  • Rhodes, I., Collins, R.P., and Evans, D.R. 1994. Breeding white clover for tolerance to low temperature and grazing stress. Euphytica 77: 239–242.
  • Riday, H. 2008. Heritability of frost-seeded red clover establishment. Euphytica 163: 81–87.
  • Riday, H. 2009. Correlations between visual biomass scores and forage yield in space planted red clover (Trifolium pratense L.) breeding nurseries. Euphytica 170: 339–345.
  • Riday, H. 2011. Paternity testing: A non-linkage based marker-assisted selection scheme for outbred forage species. Crop Sci. 51: 631–641.
  • Riday, H. and Brummer, E.C. 2002a. Forage yield heterosis in alfalfa. Crop Sci. 42: 716–723.
  • Riday, H. and Brummer, E.C. 2002b. Heterosis of agronomic traits in alfalfa. Crop Sci. 42: 1081–1087.
  • Riday, H. and Brummer, E.C. 2004. Morphological variation of Medicago sativa subsp. falcata genotypes and their hybrid progeny. Euphytica 138: 1–12.
  • Riday, H. and Brummer, E.C. 2005. Heterosis in a broad range of alfalfa germplasm. Crop Sci. 45: 8–17.
  • Riday, H. and Brummer, E.C. 2006. Persistence and yield stability of intersubspecific alfalfa hybrids. Crop Sci. 46: 1058–1063.
  • Riday, H., Brummer, E.C., Campbell, T.A., Luth, D., and Cazcarro, P.M. 2003. Comparisons of genetic and morphological distance with heterosis between Medicago sativa subsp. sativa and subsp. falcata. Euphytica 131: 37–45.
  • Riday, H., Johnson, D., Heyduk, K., Raasch, J., Darling, M., and Sandman, J. 2013. Paternity testing in an autotetraploid alfalfa breeding polycross. Euphytica: 1–15.
  • Riday, H. and Krohn, A.L. 2010a. Genetic map-based location of the red clover (Trifolium pratense L.) gametophytic self-incompatibility locus. Theor. Appl. Genet. 121: 761–767.
  • Riday, H. and Krohn, A.L. 2010b. Increasing population hybridity by restricting self-incompatibility alleles in red clover populations. Crop Sci. 50: 853–860.
  • Riday, H., Johnson, D.W., Heyduk, K., Raasch, J.A., Darling, M.E., and Sandman, J.M. 2013. Paternity testing in an autotetraploid alfalfa breeding polycross. Euphytica 194: 335–349.
  • Robin, C., Varlet-Grancher, C., Gastal, F., Flenet, F., and Guckert, A. 1992. Photomorphogenesis of white clover (Trifolium repens L.): phytochrome mediated effects on 14C-assimilate partitioning. Eur. J. Agron. 1: 235–240.
  • Robins, J.G., Bauchan, G.R., and Brummer, E.C. 2007a. Genetic mapping forage yield, plant height, and regrowth at multiple harvests in tetraploid alfalfa (Medicago sativa L.). Crop Sci. 47: 11–18.
  • Robins, J.G. and Brummer, E.C. 2010. QTL underlying self-fertility in tetraploid alfalfa. Crop Sci. 50: 143–149.
  • Robins, J.G., Hansen, J.L., Viands, D.R., and Brummer, E.C. 2008. Genetic mapping of persistence in tetraploid alfalfa. Crop Sci. 48: 1780–1786.
  • Robins, J.G., Luth, D., Campbell, T.A., Bauchan, G.R., He, C.L., Viands, D.R., Hansen, J.L., and Brummer, E.C. 2007b. Genetic mapping of biomass production in tetraploid alfalfa. Crop Sci. 47: 1–10.
  • Rosellini, D., Lorenzetti, F., and Bingham, E.T. 1998. Quantitative ovule sterility in Medicago sativa. Theor. Appl. Genet. 97: 1289–1295.
  • Rosso, B.S. and Pagano, E.M. 2005. Evaluation of introduced and naturalised populations of red clover (Trifolium pratense L.) at Pergamino EEA-INTA, Argentina. Genet. Resour. Crop Evol. 52: 507–511.
  • Rotili, P. 1976. Performance of diallel crosses and second generation synthetics of alfalfa derived from partly inbred parents. I. Forage yield. Crop Sci. 16: 247–251.
  • Rotili, P., Scotti, C., Zannone, L., and Gnocchi, G. 1994. Lucerne stand system: Dynamics of forage production, quality and demography: Consequences on the variety constitution process. REUR Tech. Ser. 36: 54–62.
  • Rotili, P. and Zannone, L. 1975. Principaux aspects d’une méthode de sélection de la luzerne basée sur des dispositifs qui utilisent la concurrence entre les plantes. Ann. Amélior. Plantes 25: 29–49.
  • Rowe, D.E. and Brink, G.E. 1993. Heritabilities and genetic correlations of white clover clones grown in three environments. Crop Sci. 33: 1149–1152.
  • Rumball, W., Keogh, R.G., and Sparks, G.A. 2005. ‘Grasslands HF1’ red clover (Trifolium pratense L.) - A cultivar bred for isoflavone content. N. Z. J. Agric. Res. 48: 345–347.
  • Rumbaugh, M.D. and Pendery, B.M. 1990. Germination salt resistance of alfalfa (Medicago sativa L.) germplasm in relation to subspecies and centers of diversity. Plant Soil 124: 47–51.
  • Russelle, M.P. 2014. Environmental benefits of growing perennial legumes in cropping systems. Legume Perspect. 4: 11–12.
  • Russelle, M.P., Lamb, J.F. S., Montgomery, B.R., Elsenheimer, D.W., Miller, B.S., and Vance, C.P. 2001. Alfalfa rapidly remediates excess inorganic nitrogen at a fertilizer spill site. J. Environ. Qual. 30: 30–36.
  • Russelle, M.P., Lamb, J.F. S., Turyk, N.B., Shaw, B.H., and Pearson, B. 2007. Managing nitrogen contaminated soils: Benefits of N2-fixing alfalfa. Agron. J. 99: 738–746.
  • Safarnejad, A., Collin, H.A., Bruce, K.D., and McNeilly, T. 1996. Characterization of alfalfa (Medicago sativa L.) following in vitro selection for salt tolerance. Euphytica 92: 55–61.
  • Şakiroğlu, M. and Brummer, E.C. 2007. Little heterosis between alfalfa populations derived from the midwestern and southwestern United States. Crop Sci. 47: 2364–2371.
  • Şakiroğlu, M., Doyle, J.J., and Brummer, E.C. 2010. Inferring population structure and genetic diversity of broad range of wild diploid alfalfa (Medicago sativa L.) accessions using SSR markers. Theor. Appl. Genet. 121: 403–415.
  • Şakiroğlu, M., Moore, K.J., and Brummer, E.C. 2011. Variation in biomass yield, cell wall components, and agronomic traits in a broad range of diploid alfalfa accessions. Crop Sci. 51: 1956–1964.
  • Şakiroğlu, M., Sherman-Broyles, S., Story, A., Moore, K.J., Doyle, J.J., and Brummer, E. C. 2012. Patterns of linkage disequilibrium and association mapping in diploid alfalfa (M. sativa L.). Theor. Appl. Genet. 125: 577–590.
  • Sanders, I., Sukharnikov, L., Najar, F., and Roe, B. 2011. Medicago. In: Wild Crop Relatives: Genomic and Breeding Resources. Legume Crops and Forages. pp. 207–222. Kole, C. (ed.) New York: Springer Berlin Heidelberg.
  • Sato, S., Isobe, S., Asamizu, E., Ohmido, N., Kataoka, R., Nakamura, Y., Kaneko, T., Sakurai, N., Okumura, K., Klimenko, I., Sasamoto, S., Wada, T., Watanabe, A., Kohara, M., Fujishiro, T., and Tabata, S. 2005. Comprehensive structural analysis of the genome of red clover (Trifolium pratense L.). DNA Res. 12: 301–364.
  • Sawada, H. 1999. Genetic variation in clonal traits of Trifolium repens and species interactions. Plant Species Biol. 14: 19–28.
  • Sawbridge, T., Ong, E.K., Binnion, C., Emmerling, M., Meath, K., Nunan, K., O’Neill, M., O’Toole, F., Simmonds, J., Wearne, K., Winkworth, A., and Spangenberg, G. 2003. Generation and analysis of expressed sequence tags in white clover (Trifolium repens L.). Plant Sci. 165: 1077–1087.
  • Schnurr, J.A., Jung, H.J. G., and Samac, D.A. 2007. A comparative study of alfalfa and Medicago truncatula stem traits: Morphology, chemical composition, and ruminal digestibility. Crop Sci. 47: 1672–1680.
  • Scott, B.J., Ewing, M.A., Williams, R., Humphries, A.W., and Coombes, N.E. 2008. Tolerance of aluminium toxicity in annual Medicago species and lucerne. Aust. J. Exp. Agr. 48: 499–511.
  • Scotti, C. and Brummer, E.C. 2010. Creation of heterotic groups and hybrid varieties. In: Sustainable Use of Genetic Diversity in Forage and Turf Breeding. pp. 509–518. Huyghe, C. (ed.) Dordrecht, The Netherlands: Springer Netherlands.
  • Scotti, C., Carelli, M., Calderini, O., Panara, F., Gaudenzi, P., Biazzi, E., May, S., Graham, N., Paolocci, F., and Arcioni, S. 2011. Agronomic and molecular analysis of heterosis in alfalfa. Plant Genet. Resour. Char. Util. 9: 288–290.
  • Scotti, C., Gnocchi, G., Carelli, M., Ferrari, L., Gaudenzi, P., and Seminari, A. 2007. Breeding for divergent symbiotic aptitude in alfalfa. I. Selfing phase. In: Breeding and Seed Production for Conventional and Organic Agriculture. Proceedings of the XXVI Meeting of the EUCARPIA Fodder Crops and Amenity Grasses Section, XVI Meeting of the EUCARPIA Medicago spp Group, Perugia, Italy, 2-7 September 2006 pp. 84–86. Rosellini, D. and Veronesi, F. (eds.), Wageningen: European Association for Research on Plant Breeding.
  • Seaney, R.R., and Henson, P.R. 1970. Birdsfoot trefoil. Adv. Agron. 22: 119–157.
  • Segovia-Lerma, A., Murray, L.W., Townsend, M.S., and Ray, I.M. 2004. Population-based diallel analyses among nine historically recognized alfalfa germplasms. Theor. Appl. Genet. 109: 1568–1575.
  • Sheaffer, C.C. and Evers, G.W. 2007. Cool-season legumes for humid areas. In: Forages. Volume 34. The Science of Grassland Agriculture.6th ed. pp. 179–190. Barnes, R.F., Nelson, C.J., Moore, K.J. and Collins, M. (eds.), Ames, Iowa: Blackwell Publishing Professional.
  • Shukla, V.K., Doyon, Y., Miller, J.C., Dekelver, R.C., Moehle, E.A., Worden, S.E., Mitchell, J.C., Arnold, N.L., Gopalan, S., Meng, X., Choi, V.M., Rock, J.M., Wu, Y.Y., Katibah, G.E., Zhifang, G., McCaskill, D., Simpson, M.A., Blakeslee, B., Greenwalt, S.A., Butler, H.J., Hinkley, S.J., Zhang, L., Rebar, E.J., Gregory, P.D., and Urnov, F.D. 2009. Precise genome modification in the crop species Zea mays using zinc-finger nucleases. Nature 459: 437–441.
  • Sinskaya, E.N. 1961. Data on the developmental biology and physiology of medic species. In: Flora of Cultivated Plants of the USSR. pp. 209–291. Jerusalem: Israel Program for Scientific Translations.
  • Sledge, M.K., Ray, I.M., and Jiang, G. 2005. An expressed sequence tag SSR map of tetraploid alfalfa (Medicago sativa L.). Theor. Appl. Genet. 111: 980–992.
  • Small, E. 2011. Alfalfa and Relatives: Evolution and Classification of Medicago. Ottawa, Canada: NRC Research Press. 727 pp.
  • Smethurst, C.F., Rix, K., Garnett, T., Auricht, G., Bayart, A., Lane, P., Wilson, S.J., and Shabala, S. 2008. Multiple traits associated with salt tolerance in lucerne: Revealing the underlying cellular mechanisms. Funct. Plant Biol. 35: 640–650.
  • Smith, K.F. and Fennessy, P.F. 2011. The use of conjoint analysis to determine the relative importance of specific traits as selection criteria for the improvement of perennial pasture species in Australia. Crop Pasture Sci. 62: 355–365.
  • Smith, K.F., Forster, J.W., and Spangenberg, G.C. 2007. Converting genomic discoveries into genetic solutions for dairy pastures - An overview. Aust. J. Exp. Agr. 47: 1032–1038.
  • Smith, K.F., Reed, K.F. M., and Foot, J.Z. 1997. An assessment of the relative importance of specific traits for the genetic improvement of nutritive value in dairy pasture. Grass Forage Sci. 52: 167–175.
  • Smith, R.R. 2001. Breeding for abiotic and biotic stress in perennial Trifolium. In: Breeding for Stress Tolerance in Fodder Crops and Amenity Grasses. Proceedings of the 23rd Meeting of the Fodder Crops and Amenity Grasses Section of EUCARPIA, Azores, Portugal, 1-4 October 2000. pp. 13–19. Monjardino, P., da Camara, A. and Carnide, V. (eds.), Azores: University of Azores.
  • Smith, R.S. and Bishop, D.J. 1993. Astred - A stoloniferous red clover. In: Proceedings of the XVII International Grassland Congress. 8-21 February, 1993. pp. 421–423. New Zealand Grassland Association, Tropical Grassland Association of Australia, New Zealand Society of Animal Production, Australian Society of Animal Production, New Zealand Insititute of Agricultural Science.
  • Smith S.R. Jr, and Bouton, J.H. 1989. Seed yield of grazing-tolerant alfalfa germplasms. Crop Sci. 29: 1195–1199.
  • Smith S.R. Jr, Bouton, J.H., Singh, A., and McCaughey, W.P. 2000. Development and evaluation of grazing-tolerant alfalfa cultivars: A review. Can. J. Plant Sci. 80: 503–512.
  • Soltis, D.E. and Soltis, P.S. 1993. Molecular data and the dynamic nature of polyploidy. Crit. Rev. Plant Sci. 12: 243–273.
  • St. Amand, P.C., Skinner, D.Z., and Peaden, R.N. 2000. Risk of alfalfa transgene dissemination and scale-dependent effects. Theor. Appl. Genet. 101: 107–114.
  • Suárez, R., Calderón, C., and Iturriaga, G. 2009. Enhanced tolerance to multiple abiotic stresses in transgenic alfalfa accumulating trehalose. Crop Sci. 49: 1791–1799.
  • Sullivan, M.L. and Hatfield, R.D. 2006. Polyphenol oxidase and o-diphenols inhibit postharvest proteolysis in red clover and alfalfa. Crop Sci. 46: 662–670.
  • Sun, P., Velde, M., and Gardner, D.B. 2004. Alfalfa hybrids having at least 75% hybridity. US patent: US6774280B2.
  • Svenning, M.M., Røsnes, K., and Junttila, O. 1997. Frost tolerance and biochemical changes during hardening and dehardening in contrasting white clover populations. Physiol. Plant. 101: 31–37.
  • Svenning, M.M., Røsnes, K., Lund, L., and Junttila, O. 2001. Vegetative growth and freezing tolerance of white clover (Trifolium repens L.) genotypes from Svalbard. Acta Agr. Scand. B-S. P. 51: 10–16.
  • Tabel, C. and Allerit, R. 2005. Bilan du progrès génétique obtenu pour différents caractères et différentes espèces. Fourrages 183: 365–376.
  • Tadege, M., Wen, J., He, J., Tu, H., Kwak, Y., Eschstruth, A., Cayrel, A., Endre, G., Zhao, P.X., Chabaud, M., Ratet, P., and Mysore, K.S. 2008. Large-scale insertional mutagenesis using the Tnt1 retrotransposon in the model legume Medicago truncatula. Plant J. 54: 335–347.
  • Tapingkae, T., Zulkarnain, Z., Kawaguchi, M., Ikeda, T., and Taji, A. 2012. Somatic (asexual) procedures (haploids, protoplasts, cell selection) and their applications. In: Plant Biotechnology and Agriculture: Prospects for the 21st Century. pp. 141–162. Altman, A. and Hasegawa, P.M. (eds.), San Diego, California: Elsevier Academic Press Inc.
  • Tarello, C. 1567. Ricordo d’Agricoltura. Venice, Italy.
  • Tasei, J.N. 1984. Légumineuses fourragères et protéagineuses. In: Pollinisation et Productions Végétales. pp. 261–308. Pesson, P. and Louveaux, J. (eds.), Paris: INRA.
  • Tashiro, R.M., Han, Y., Monteros, M.J., Bouton, J.H., and Parrott, W.A. 2010. Leaf trait coloration in white clover and molecular mapping of the red midrib and leaflet number traits. Crop Sci. 50: 1260–1268.
  • Tayeh, N., Bahrman, N., Devaux, R., Bluteau, A., Prosperi, J.M., Delbreil, B., and Lejeune-Hénaut, I. 2013. A high-density genetic map of the Medicago truncatula major freezing tolerance QTL on chromosome 6 reveals colinearity with a QTL related to freezing damage on Pisum sativum linkage group VI. Mol. Breed. 32: 279–289.
  • Taylor, N.L. 2008. A century of clover breeding developments in the United States. Crop Sci. 48: 1–13.
  • Taylor, N.L. and Quesenberry, K.H. 1996. Red Clover Science. Dordrecht, The Netherlands: Kluwer Academic Publishers. 226pp.
  • Taylor, N.L. and Smith, R.R. 1979. Red clover breeding and genetics. Adv. Agron. 31: 125–154.
  • Taylor, N.L. and Smith, R.R. 1998. Kura clover (Trifolium ambiguum M.B.) breeding, culture, and utilization. Adv. Agron. 63: 153–178.
  • Theodoridou, K., Aufrère, J., Andueza, D., Pourrat, J., Le Morvan, A., Stringano, E., Mueller-Harvey, I., and Baumont, R. 2010. Effects of condensed tannins in fresh sainfoin (Onobrychis viciifolia) on in vivo and in situ digestion in sheep. Anim. Feed Sci. Technol. 160: 23–38.
  • Thiébeau, P., Larbre, D., Usunier, J., Cattin, G., Parnaudeau, V., and Justes, E. 2004. Effets d’apports de lisier de porcs sur la production d’une luzerne et la dynamique de l’azote du sol. Fourrages 180: 511–525.
  • Thomas, R.G. 1987. Reproductive development. In: White Clover. pp. 63–123. Baker, M.J. and Williams, W.M. (eds.), Wallingford, UK: CAB International.
  • Thomas, R.J. 1992. The role of the legume in the nitrogen cycle of productive and sustainable pastures. Grass Forage Sci. 47: 133–142.
  • Toth, E. and Bakheit, B.R. 1983. Results of resistance breeding in alfalfa. II. Resistance to Verticillium wilt. Acta Agron. Hung. 32: 78–85.
  • Tucak, M., Popovic, S., Grljusic, S., Cupic, T., and Bolaric, S. 2011. Implementation of molecular markers diversity in parental selection of alfalfa (Medicago sativa L.) germplasm. Biotechnol. Biotechnol. Equip. 25: 2310–2314.
  • Turkington, R. 1989a. The growth, distribution and neighbour relationships of Trifolium repens in a permanent pasture. V. The coevolution of competitors. J. Ecol. 77: 717–733.
  • Turkington, R. 1989b. The growth, distribution and neighbour relationships of Trifolium repens in a permanent pasture. VI. Conditioning effects by neighbours. J. Ecol. 77: 734–746.
  • Tysdal, H.M. and Kiesselbach, T.A. 1944. Hybrid alfalfa. J. Am. Soc. Agron. 36: 649–667.
  • Undersander, D., McCaslin, M., Sheaffer, C., Whalen, D., Miller, D., Putnam, D., and Orloff, S. 2009. Low lignin alfalfa: Redefining the yield/quality tradeoff. In: Improving Your Odds of Profitability. 39th Western Alfalfa & Forage Conference, 2-4 December 2009, Grand Sierra Resort Casino, Reno, NV. pp. 157–160.
  • Van Den Bosch, J. and Mercer, C.F. 1996. Variation in white clover for root-knot nematode resistance. N. Z. J. Agric. Res. 39: 137–148.
  • Van Den Bosch, J., Mercer, C.F., and Grant, J.L. 1997. Variation in white clover for resistance to clover cyst nematode. N. Z. J. Agric. Res. 40: 223–229.
  • Van Mölken, T. and Stuefer, J.F. 2011. The potential of plant viruses to promote genotypic diversity via genotype × environment interactions. Ann. Bot. 107: 1391–1397.
  • Vandemark, G.J., Larsen, R.C., and Hughes, T.J. 2006. Heritability of resistance to Verticillium wilt in alfalfa. Plant Dis. 90: 314–318.
  • Vavilov, N.I. 1926. Centres of origin of cultivated plants. Bull. Appl. Bot. Genet. Sel. 16: 139–248.
  • Venuto, B.C., Smith, R.R., and Grau, C.R. 1999. Selection for resistance to Fusarium wilt in red clover. Can. J. Plant Sci. 79: 351–356.
  • Veronesi, F., and Lorenzetti, F. 1983. Productivity and survival of alfalfa hybrid and inbred plants under competitive conditions. Crop Sci. 23: 577–580.
  • Veronesi, F., Brummer, E.C., and Huyghe, C. 2010. Alfalfa. In: Fodder Crops and Amenity Grasses. Handbook of Plant Breeding. pp. 395–437. Boller, B., Posselt, U.K. and Veronesi, F. (eds.), New York: Springer.
  • Vleugels, T. and van Bockstaele, E. 2013. Number of involved genes and heritability of clover rot (Sclerotinia trifoliorum) resistance in red clover (Trifolium pratense). Euphytica 194: 137–148.
  • Vogel, K.P. and Lamb, J.F. S. 2007. Forage breeding. In: Forages. Volume 34. The Science of Grassland Agriculture.6th ed. pp. 427–438. Barnes, R.F., Nelson, C.J., Moore, K.J. and Collins, M. (eds.), Ames, Iowa: Blackwell Publishing Professional.
  • Voisey, C.R., White, D.W. R., Wigley, P.J., Chilcott, C.N., McGregor, P.G., and Woodfield, D.R. 1994. Release of transgenic white clover plants expressing Bacillus thuringiensis genes: An ecological perspective. Biocontrol Sci. Technol. 4: 475–481.
  • Volenec, J.J., Cunningham, S.M., Haagenson, D.M., Berg, W.K., Joern, B.C., and Wiersma, D.W. 2002. Physiological genetics of alfalfa improvement: Past failures, future prospects. Field Crops Res. 75: 97–110.
  • Vymyslicky, T., Smarda, P., Pelikan, J., Cholastova, T., Nedelnik, J., Moravcova, H., Pokorny, R., Soldanova, M., and Polakova, M. 2012. Evaluation of the Czech core collection of Trifolium pratense, including morphological, molecular and phytopathological data. Afr. J. Biotechnol. 11: 3583–3595.
  • Waghorn, G.C. and Caradus, J.R. 1994. Screening white clover cultivars for improved nutritive value - development of a method. Proc. N. Z. Grassland Assoc. 56: 49–53.
  • Wang, J., Drayton, M.C., George, J., Cogan, N.O. I., Baillie, R.C., Hand, M.L., Kearney, G.A., Erb, S., Wilkinson, T., Bannan, N.R., Forster, J.W., and Smith, K.F. 2010. Identification of genetic factors influencing salt stress tolerance in white clover (Trifolium repens L.) by QTL analysis. Theor. Appl. Genet. 120: 607–619.
  • Wang, X., Li, X., Zhang, J., Feng, G., Zhang, S., Huang, L., Zhuo, R., and Jin, L. 2011. Characterization of nine alfalfa varieties for differences in ovule numbers and ovule sterility. Aust. J. Crop Sci. 5: 453–457.
  • Wang, Y. and Oyaizu, H. 2011. Enhanced remediation of dioxins-spiked soil by a plant-microbe system using a dibenzofuran-degrading Comamonas sp. and Trifolium repens L. Chemosphere 85: 1109–1114.
  • Wang, Z., Yan, H., Fu, X., Li, X.H., and Gao, H. 2013. Development of simple sequence repeat markers and diversity analysis in alfalfa (Medicago sativa L.). Mol. Biol. Rep. 40: 3291–3298.
  • Wang, Z.Y. and Brummer, E.C. 2012. Is genetic engineering ever going to take off in forage, turf and bioenergy crop breeding? Ann. Bot. 110: 1317–1325.
  • Weeks, J.T., Ye, J., and Rommens, C.M. 2008. Development of an in planta method for transformation of alfalfa (Medicago sativa). Transgenic Res. 17: 587–597.
  • Wermuth, K.H. and Dupont, Y.L. 2010. Effects of field characteristics on abundance of bumblebees (Bombus spp.) and seed yield in red clover fields. Apidologie 41: 657–666.
  • Widdup, K., Caradus, J.R., Green, J., Mueller, J.P., and Pennell, C.P. 1995. White clover ecotype germplasm from the USA for development of New Zealand and overseas cultivars. Agronomy Society of New Zealand Special Publication No. 11, 149–154.
  • Widdup, K., Hussain, S.W., Williams, W.M., Lowther, W.L., Pryor, H.N. and Sutherland, B.L. 2003. The development and plant characteristics of interspecific hybrids between white and caucasian clover. Legumes for Dryland Pastures. NZGA Symposium. Grassland Research and Practise Series. No 11: 143–148.
  • Widdup, K., Woodfield, D.R., Baird, I., and Clifford, P. 2004. Response to selection for seed yield in six white clover cultivars. Proc. N. Z. Grassland Assoc. 66: 103–110.
  • Widdup, K.H., Ford, J.L., Barret, B.A., and Woodfield, D.R. 2010. Development of white clover populations with higher concentrations of water soluble carbohydrate. Proc. N. Z. Grassland Assoc. 72: 277–282.
  • Williams, W., Verry, I., Ansari, H., Hussain, S., Ullah, I., Williamson, M., and Ellison, N. 2011. Eco-geographically divergent diploids, Caucasian clover (Trifolium ambiguum) and western clover (T. occidentale) retain most requirements for hybridisation. Ann. Bot. 108: 1269–1277.
  • Williams, W.M. 1987a. Adaptive variation. In: White Clover. pp. 299–232. Baker, M.J. and Williams, W.M. (eds.), Wallingford, UK: CAB International.
  • Williams, W.M. 1987b. Genetics and breeding. In: White Clover. pp. 343–419. Baker, M.J. and Williams, W.M. (eds.), Wallingford, UK: CAB International.
  • Williams, W.M. 2014. Trifolium interspecific hybridisation: widening the white clover gene–pool. Crop Pasture Sci. ( in press). doi: 10.1071/CP13294
  • Williams, W.M., Ellison, N.W., Ansari, H.A., Verry, I.M., and Hussain, S.W. 2012. Experimental evidence for the ancestry of allotetraploid Trifolium repens and creation of synthetic forms with value for plant breeding. BMC Plant Biol. 12: 55.
  • Williams, W.M., Griffiths, A.G., Hay, M.J. M., Richardson, K.A., Ellison, N.W., Rasmussen, S., Verry, T.M., Collette, V., Hussain, S.W., Thomas, R.G., Jones, C.S., Anderson, C., Maher, D., Scott, A.G., Hancock, K., Williamson, M.L., Tilbrook, J.C., Greig, M., and Allan, A. 2009. Development of Trifolium occidentale as a plant model system for perennial clonal species. In: Molecular Breeding of Forage and Turf. pp. 45–53. Yamada, T. and Spangenberg, G. (eds.), New York: Springer.
  • Williams, W.M. and Nichols, S.N. 2011. Trifolium. In: Wild Crop Relatives: Genomic and Breeding Resources. Legume Crops and Forages. pp. 249–272. Kole, C. (ed.), New York: Springer.
  • Williams, W.M., Verry, I.M., Ansari, H.A., and Hussain, S.W. 2006. First backcrosses of Caucasian x white clover hybrids to Caucasian clover. In: Mercer, C.F. (ed.) Breeding Success: Diversity in Action. 13th Australasian Plant Breeding Conference, Christchurch, New Zealand, 18–21 April 2006, 972–976.
  • Winicov, I. 1991. Characterization of salt tolerant alfalfa (Medicago sativa L.) plants regenerated from salt tolerant cell lines. Plant Cell Rep. 10: 561–564.
  • Winters, A.L. and Minchin, F. 2002. The effect of PPO on the protein content of ensiled red clover silage. In: The XIIIth International Silage Conference, 11-13 September 2000. pp. 84–85. Gechie, L.M. and Thomas, C. (eds.), Ayr, Scotland: Scottish Agricultural College.
  • Woodfield, D.R., Baird, I., and Clifford, P. 2004. Genetic improvement of white clover seed production. Proc. N. Z. Grassland Assoc. 66: 111–117.
  • Woodfield, D.R. and Caradus, J.R. 1990. Estimates of heritability for, and relationships between, root and shoot characters of white clover II. Regression of progeny on mid-parent. Euphytica 46: 211–215.
  • Woodfield, D.R. and Caradus, J.R. 1994. Genetic improvement in white clover representing six decades of plant breeding. Crop Sci. 34: 1205–1213.
  • Yang, S., Gao, M., Deshpande, S., Lin, S., Roe, B.A., and Zhu, H. 2007. Genetic and physical localization of an anthracnose resistance gene in Medicago truncatula. Theor. Appl. Genet. 116: 45–52.
  • Yang, S., Gao, M., Xu, C., Gao, J., Deshpande, S., Lin, S., Roe, B.A., and Zhu, H. 2008. Alfalfa benefits from Medicago truncatula: The RCT1 gene from M. truncatula confers broad-spectrum resistance to anthracnose in alfalfa. Proc. Natl. Acad. Sci. USA 105: 12164–12169.
  • Yari, M., Valizadeh, R., Naserian, A.A., Ghorbani, G.R., Rezvani Moghaddam, P., Jonker, A., and Yu, P. 2012. Botanical traits, protein and carbohydrate fractions, ruminal degradability and energy contents of alfalfa hay harvested at three stages of maturity and in the afternoon and morning. Anim. Feed Sci. Technol. 172: 162–170.
  • Young, N.D., Cannon, S.B., Sato, S., Kim, D.J., Cook, D.R., Town, C.D., Roe, B.A., and Tabata, S. 2005. Sequencing the genespaces of Medicago truncatula and Lotus japonicus. Plant Physiol. 137: 1174–1181.
  • Young, N.D., Debelle, F., Oldroyd, G.E. D., Geurts, R., Cannon, S.B., Udvardi, M.K., Benedito, V.A., Mayer, K.F. X., Gouzy, J., Schoof, H., Van de Peer, Y., Proost, S., Cook, D.R., Meyers, B.C., Spannagl, M., Cheung, F., De Mita, S., Krishnakumar, V., Gundlach, H., Zhou, S., Mudge, J., Bharti, A.K., Murray, J.D., Naoumkina, M.A., Rosen, B., Silverstein, K.A. T., Tang, H., Rombauts, S., Zhao, P.X., Zhou, P., Barbe, V., Bardou, P., Bechner, M., Bellec, A., Berger, A., Berges, H., Bidwell, S., Bisseling, T., Choisne, N., Couloux, A., Denny, R., Deshpande, S., Dai, X., Doyle, J.J., Dudez, A.-M., Farmer, A.D., Fouteau, S., Franken, C., Gibelin, C., Gish, J., Goldstein, S., Gonzalez, A.J., Green, P.J., Hallab, A., Hartog, M., Hua, A., Humphray, S.J., Jeong, D.-H., Jing, Y., Joecker, A., Kenton, S.M., Kim, D.-J., Klee, K., Lai, H., Lang, C., Lin, S., Macmil, S.L., Magdelenat, G., Matthews, L., McCorrison, J., Monaghan, E.L., Mun, J.-H., Najar, F.Z., Nicholson, C., Noirot, C., O’Bleness, M., Paule, C.R., Poulain, J., Prion, F., Qin, B., Qu, C., Retzel, E.F., Riddle, C., Sallet, E., Samain, S., Samson, N., Sanders, I., Saurat, O., Scarpelli, C., Schiex, T., Segurens, B., Severin, A.J., Sherrier, D.J., Shi, R., Sims, S., Singer, S.R., Sinharoy, S., Sterck, L., Viollet, A., Wang, B.-B., Wang, K., Wang, M., Wang, X., Warfsmann, J., Weissenbach, J., White, D.D., White, J.D., Wiley, G.B., Wincker, P., Xing, Y., Yang, L., Yao, Z., Ying, F., Zhai, J., Zhou, L., Zuber, A., Denarie, J., Dixon, R.A., May, G.D., Schwartz, D.C., Rogers, J., Quetier, F., Town, C.D., and Roe, B.A. 2011. The Medicago genome provides insight into the evolution of rhizobial symbioses. Nature 480: 520–524.
  • Young, N.D. and Udvardi, M. 2009. Translating Medicago truncatula genomics to crop legumes. Curr. Opin. Plant Biol. 12: 193–201.
  • Yu, Y., Collura, K., Wissotski, M., Kim, W., Golser, W., Braidotti, M., Zuccolo, A., Wing, R., Kudrna, D., Skøt, L., Geurts, G., Mayer, K., Oldroyd, G., Donnison, I., and Abberton, M. 2010. Translational genomics to underpin germplasm improvement for complex traits in crop legumes. Genomic Survey Sequences (HR235466-HR298279): http://www.ncbi.nlm.nih.gov/nucgss.
  • Zannone, L., Rotili, P., Paoletti, R., and Scotti, C. 1986. Experimental studies of grass-legume associations. Agronomie 6: 931–940.
  • Zeven, A.C. 1991. Four hundred years of cultivation of Dutch white clover landraces. Euphytica 54: 93–99.
  • Zhang, Y., He, J., Zhao, P.X., Bouton, J.H., and Monteros, M.J. 2008. Genome-wide identification of microsatellites in white clover (Trifolium repens L.) using FIASCO and phpSSRMiner. Plant Methods 4: 19.
  • Zhang, Y., Motes, C., Sledge, M.K., Bouton, J.H., Han, Y., and Monteros, M.J. 2010. Identification of QTLs associated with morphological and agronomic traits in white clover (Trifolium repens L.). In: Sustainable Use of Genetic Diversity in Forage and Turf Breeding. pp. 489–492. Huyghe, C. (ed.), Dordrecht, The Netherlands: Springer.
  • Zhang, Y., Sledge, M.K., and Bouton, J.H. 2007. Genome mapping of white clover (Trifolium repens L.) and comparative analysis within the Trifolieae using cross-species SSR markers. Theor. Appl. Genet. 114: 1367–1378.
  • Zhong, Y., Wang, J., Song, Y., Liang, Y., and Li, G. 2012. Microbial community and functional genes in the rhizosphere of alfalfa in crude oil-contaminated soil. Front. Environ. Sci. Eng. 6: 797–805.
  • Zhou, C., Han, L., Pislariu, C., Nakashima, J., Fu, C., Jiang, Q., Quan, L., Blancaflor, E.B., Tang, Y., Bouton, J.H., Udvardi, M., Xia, G., and Wang, Z.Y. 2011. From model to crop: Functional analysis of a STAY-GREEN gene in the model legume Medicago truncatula and effective use of the gene for alfalfa improvement. Plant Physiol. 157: 1483–1496.
  • Zohary, M. and Heller, D. 1984. The Genus Trifolium. Jerusalem: Israel Academy of Sciences and Humanities. 606pp.

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