Southern pollen sired more seeds than northern pollen in southern seed orchards established with northern clones of Pinus sylvestris

References

• Aronen , T. , Nikkanen , T. , Harju , A. , Tiimonen , H. and Häggman , H. 2002 . Pollen competition and seed-siring success in Picea abies . Theoretical and Applied Genetics , 104 : 638 – 642 .
   Google Scholar
• Brewbaker , J. L. and Kwack , B. H. 1963 . The essential role of calcium ion in pollen germination and pollen tube growth . American Journal of Botany , 50 : 859 – 865 .
   Web of Science ®Google Scholar
• Buchholz , J. T. 1918 . Suspensors and early embryos of Pinus . Botanical Gazette , 66 : 185 – 228 .
   Google Scholar
• Chung , M.-S. 1981 . Flowering characteristics of Pinus sylvestris L. with special emphasis on the reproductive adaptation to local temperature factor . Acta Forestalia Fennica , 169 : 5 – 68 .
   Google Scholar
• Cruzan , M. 1990 . Pollen–pollen and pollen–style interactions during pollen tube growth in Erythronium grandiflorum (Liliaceae) . American Journal of Botany , 77 : 116 – 122 .
   Google Scholar
• Delph , L. F. , Johannsson , M. H. and Stephenson , A. G. 1997 . How environmental factors affect pollen performance: Ecological and evolutionary perspectives . Ecology , 78 : 1632 – 1639 .
   Web of Science ®Google Scholar
• Dyakowska , J. 1936 . Researches on the rapidity of the falling down of pollen in some trees . Bulletin de L'Academie Polonaise des Sciences et des Lettres, Serie B , 1 : 155 – 168 .
   Google Scholar
• Gullberg , U. , Yazdani , R. , Rudin , D. and Ryman , N. 1985 . Allozyme variation in Scots pine (Pinus sylvestris L.) in Sweden . Silvae Genetica , 34 : 193 – 201 .
   Web of Science ®Google Scholar
• Harju , A. and Muona , O. 1989 . Background pollination in Pinus sylvestris seed orchards . Scandinavian Journal of Forest Research , 4 : 513 – 520 .
   Web of Science ®Google Scholar
• Harju , A. M. and Nikkanen , T. 1996 . Reproductive success of orchard and nonorchard pollens during different stages of pollen shedding in a Scots pine seed orchard . Canadian Journal of Forest Research , 26 : 1096 – 1102 .
   Web of Science ®Google Scholar
• Hedhly , A. , Hormaza , J. I. and Herrero , M. 2004 . Effect of temperature on pollen tube kinetics and dynamics in sweet cherry, Prunus avium (Rosaceae) . American Journal of Botany , 91 : 558 – 564 .
   PubMed Web of Science ®Google Scholar
• Hedhly , A. , Hormaza , J. I. and Herrero , M. 2005 . Influence of genotype–temperature interaction on pollen performance . Journal of Evolutionary Biology , 18 : 1494 – 1502 .
   PubMed Web of Science ®Google Scholar
• Hormaza , J. and Herrero , M. 1999 . Pollen performance as affected by the pistilar genotype in sweet cherry (Prunus avium L.) . Protoplasma , 208 : 129 – 135 .
   Web of Science ®Google Scholar
• Hurme , P. , Repo , T. , Savolainen , O. and Pääkkönen , T. 1997 . Climatic adaptation of bud set and frost hardiness in Scots pine (Pinus sylvestris) . Canadian Journal of Forest Research , 27 : 716 – 723 .
   Google Scholar
• Jonsson , A. , Ekberg , I. and Eriksson , G. 1976 . Flowering in a seed orchard of Pinus sylvestris L . Studia Forestalia Suecica , 135 : 1 – 38 .
   Google Scholar
• Karhu , A. , Hurme , P. , Karjalainen , M. , Karvonen , P. , Kärkkäinen , K. , Neale , D. and Savolainen , O. 1996 . Do molecular markers reflect patterns of differentiation in adaptive traits of conifers? . Theoretical and Applied Genetics , 93 : 215 – 221 .
   PubMed Web of Science ®Google Scholar
• Kärkkäinen , K. , Koski , V. and Savolainen , O. 1996 . Geographical variation in the inbreeding depression of Scots pine . Evolution , 50 : 111 – 119 .
   Google Scholar
• Kärkkäinen , K. and Savolainen , O. 1993 . The degree of early inbreeding depression determines the selfing rate at the seed stage: Model and results from Pinus sylvestris (Scots pine) . Heredity , 71 : 160 – 166 .
   Google Scholar
• Koelewijn , H. , Koski , V. and Savolainen , O. 1999 . Magnitude and timing of inbreeding depression in Scots pine (Pinus sylvestris L.) . Evolution , 53 : 758 – 768 .
   PubMed Web of Science ®Google Scholar
• Koski , V. 1970 . A study of pollen dispersal as a mechanism of gene flow in conifers . Communicationes Instituti Forestalis Fenniae , 70 ( 4 ) : 1 – 78 .
   Google Scholar
• Koski , V. 1971 . Embryonic lethals of Picea abies and Pinus sylvestris . Communicationes Instituti Forestalis Fenniae , 75 ( 3 ) : 1 – 30 .
   Google Scholar
• Krauss , S. 2000 . The realized effect of postpollination sexual selection in a natural plant population . Proceedings of the Royal Society B , 267 : 1925 – 1929 .
   Google Scholar
• Krutovskii , K. V. and Politov , D. V. 1995 . Allozyme evidence for polyzygotic polyembryony in Siberian stone pine (Pinus sibirica Du Tour) . Theoretical and Applied Genetics , 90 : 811 – 818 .
   Google Scholar
• Kylmänen , P. 1980 . Ennakkotuloksia nuorissa männyn siemenviljelyksissä syntyvän Pohjois-Suomi×Etelä-Suomi -kaukoristeytyssiemenen käyttömahdollisuuksista [Preliminary results concerning usability of north Finland×south Finland hybrid seed born in young Scots pine seed orchards] . Folia Forestalia , 423 , 1 – 16 . (In Finnish.)
   Google Scholar
• Marshall , D. , Folsom , M. , Hatfield , C. and Bennett , T. 1996 . Does interference competition among pollen grains occur in wild radish? . Evolution , 50 : 1842 – 1848 .
   Web of Science ®Google Scholar
• Mulcahy , D. , Sari-Gorla , M. and Mulcahy , G. 1996 . Pollen selection–-Past, present and future . Sexual Plant Reproduction , 9 : 353 – 356 .
   Google Scholar
• Muona , O. and Harju , A. 1989 . Effective population sizes, genetic variability, and mating system in natural stands and seed orchards of Pinus sylvestris . Silvae Genetica , 38 : 221 – 228 .
   Web of Science ®Google Scholar
• Niklas , K. J. 1985 . The aerodynamics of wind pollination . Botanical Review , 51 : 328 – 386 .
   Web of Science ®Google Scholar
• Pakkanen , A. & Pulkkinen , P. 1991 . Pollen production and background pollination levels in Scots pine seed orchards of northern Finnish origin (Report 10). Department of Plant Physiology and Forest Genetics, Swedish University of Agricultural Sciences .
   Google Scholar
• Pakkanen , A. , Pulkkinen , P. & Vakkari , P. 1991 . Pollen contamination in the years 1988–1989 in some old Scots pine seed orchards of northern Finnish origin . Reports from the Foundation for Forest Tree Breeding , 3 .
   Google Scholar
• Parantainen , A. and Pasonen , H. L. 2004 . Pollen–pollen interactions in Pinus sylvestris . Scandinavian Journal of Forest Research , 19 : 199 – 205 .
   Web of Science ®Google Scholar
• Parantainen , A. and Pulkkinen , P. 2002 . Pollen viability of Scots pine (Pinus sylvestris L.) in different temperature conditions: High levels of variation among and within latitudes . Forest Ecology and Management , 167 : 149 – 160 .
   Web of Science ®Google Scholar
• Parantainen , A. and Pulkkinen , P. 2003 . Flowering and airborne pollen occurrence in a Pinus sylvestris seed orchard consisting of northern clones . Scandinavian Journal of Forest Research , 18 : 111 – 117 .
   Web of Science ®Google Scholar
• Pasonen , H-L. , Pulkkinen , P. , Käpylä , M. and Blom , A. 1999 . Polien-tube growth rate and seed-siring success among Betula pendula clones . New Phytology , 167 : 149 – 160 .
   Google Scholar
• Pohl , F. 1937 . Die Pollenerzeugung der Windblütler [Pollen production of wind pollinated plants] . Beiheft zum Botanischen Centralblatt , 56A , 365 – 471 . (In German.)
   Google Scholar
• Pulkkinen , P. , Haapanen , M. and Mikola , J. 1995 . Effects of southern pollination on the survival and growth of seed orchards progenies of northern Scots pine (Pinus sylvestris) clones . Forest Ecology and Management , 73 : 75 – 84 .
   Google Scholar
• Sarvas , R. 1962 . Investigations on the flowering and seed crop of Pinus sylvestris . Communicationes Instituti Forestalis Fenniae , 53 ( 4 ) : 1 – 198 .
   Google Scholar
• Savolainen , O. 1997 . Pines beyond the polar circle: Adaptation to stress conditions . In P. M. A. Tigerstedt Adaptation in plant breeding: Selected papers from the XIV EUCARPIA Congress on Adaptation in Plant Breeding , Jyväskylä, Finland, 31 July–4 August 1995 (pp. 153 – 159 ). Dordrecht : Kluwer Academic Publishers .
   Google Scholar
• Skogsmyr , I. and Lankinen , Å. 1999 . Selection on pollen competitive ability in relation to stochastic factors influencing pollen deposition . Evolutionary Ecology Research , 1 : 971 – 985 .
   Google Scholar
• Skr⊘ppa , T. and Lindgren , D. 1994 . Male fertility variation and non-random segregation in pollen mix crosses of Picea abies . Forest Genetics , 1 : 13 – 22 .
   Google Scholar
• Slavov , G. T. , Howe , G. T. and Adams , W. T. 2005 . Pollen contamination and mating patterns in a Douglas-fir seed orchard as measured by simple sequence repeat markers . Canadian Journal of Forest Research , 35 : 1592 – 1603 .
   Web of Science ®Google Scholar
• Snow , A. A. and Spira , T. P. 1991 . Differential pollen-tube growth rates and nonrandom fertilization in Hibiscus moscheutos (Malvaceae) . American Journal of Botany , 78 : 1419 – 1426 .
   Web of Science ®Google Scholar
• Stephenson , A. and Bertin , R. 1983 . “ Male competition, female choice, and sexual selection in plants ” . In Pollination biology , Edited by: Real , L. 109 – 149 . Orlando, FL : Academic Press .
   Google Scholar
• Varis , S. , Santanen , A. , Pakkanen , A. and Pulkkinen , P. 2008 . The importance of being the first pollen in the strobili of Scots pine . Canadian Journal of Forest Research , 38 : 2976 – 2980 .
   Google Scholar
• Walsh , N. E. and Charlesworth , D. 1992 . Evolutionary interpretations of differences in pollen tube growth rates . Quarterly Review of Biology , 67 : 19 – 37 .
   Google Scholar
• Winsor , J. , Davis , L. and Stephenson , A. 1987 . The relationship between pollen load and fruit maturation and the effect of pollen load in offspring vigor in Cucurbita pepo . American Naturalist , 129 : 643 – 656 .
   Google Scholar