References
- AgMRC, Canola Profile. Quarterly Report-July-September. 2018. https://www.agmrc.org/commodities-products/grains-oilseeds/canola-profile
- AI-Daoud F, Moran M, Gossen B, Mcdonald MR. 2018. First report of clubroot (Plasmodiophora brassicae) on canola in Ontario. Can J Plant Pathol. 40(1):96–99. doi:https://doi.org/10.1080/07060661.2017.1393696.
- Alamery SF. 2015. Genome-wide identification of NBS-LRR genes in Brassica and their association with disease resistance in Brassica napus. Dissertation. The University of Queensland.
- Ansan-Melayah D, Balesdent MH, Delourme R, Pilet ML, Tanguy X, Renard M, Rouxel T. 1998. Genes for race-specific resistance against blackleg disease in Brassica napus L. Plant Breeding. 117(4):373–378. doi:https://doi.org/10.1111/j.1439-0523.1998.tb01956.x.
- Atri C, Akhatar J, Gupta M, Gupta N, Goyal A, Rana K, Kaur R, Mittal M, Sharma A, Singh MP, et al. 2019. Molecular and genetic analysis of defensive responses of Brassica juncea-B. fruticulosa introgression lines to Sclerotinia infection. Sci Rep. 9(1):17089. doi:https://doi.org/10.1038/s41598-019-53444-3
- Bailey-Serres J, Parker JE, Ainsworth EA, Oldroyd GED, Schroeder JI. 2019. Genetic strategies for improving crop yields. Nat. 575(7781):109–118. doi:https://doi.org/10.1038/s41586-019-1679-0.
- Balesdent MH, Attard A, Ansan-Melayah D, Delourme R, Renard M, Rouxel T. 2001. Genetic control and host range of avirulence toward Brassica napus cultivars Quinta and Jet Neuf in Leptosphaeria maculans. Phytopathol. 91:70–76. doi:https://doi.org/10.1094/PHYTO.2001.91.1.70.
- Balesdent MH, Attard A, Kuhn ML, Rouxel T. 2002. New avirulence genes in the phytopathogenic fungus Leptosphaeria maculans. Phytopathol. 92(10):1122–1133. doi:https://doi.org/10.1094/PHYTO.2002.92.10.1122.
- Balesdent MH, Barbetti MJ, Hua L, Sivasithamparam K, Gout L, Rouxel T. 2005. Analysis of Leptosphaeria maculans race structure in a worldwide collection of isolates. Phytopathol. 95(9):1061–1071. doi:https://doi.org/10.1094/PHYTO-95-1061.
- Balesdent MH, Fudal I, Ollivier B, Bally P, Grandaubert J, Eber F, Chevre AM, Leflon M, Rouxel T. 2013. The dispensable chromosome of Leptosphaeria L eptosphaeria maculans shelters an effector gene conferring avirulence towards Brassica B rassica rapa. New Phytol. 198(3):887–898. doi:https://doi.org/10.1111/nph.12178.
- Bardin SD, Huang HC. 2001. Research on biology and control of Sclerotinia diseases in Canada. Can J Plant Pathol. 23(1):88–98. doi:https://doi.org/10.1080/07060660109506914.
- Baxter L, Tripathy S, Ishaque N, Boot N, Cabral A, Kemen E, Thines M, Ah-Fong A, Anderson R, Badejoko W, et al. 2010. Signatures of adaptation to obligate biotrophy in the Hyaloperonospora arabidopsidis Genome. Science. 330(6010):1549. doi:https://doi.org/10.1126/science.1195203
- Bayer Crop Science. https://www.cropscience.bayer.ca/en/Products/Fungicides/Proline-canola/Proline-GOLD
- Bayer PE, Ruperao P, Mason AS, Stiller J, Chan CKK, Hayashi S, Long Y, Meng J, Sutton T, Visendi P, et al. 2015. High resolution skim genotyping by sequencing reveals the distribution of crossovers and gene conversions in Cicer arietinum and Brassica napus. Theor Appl Genet. 128(6):1039–1047. doi:https://doi.org/10.1007/s00122-015-2488-y
- Becker HC, Engqvist GM, Karlsson B. 1995. Comparison of rapeseed cultivars and re-synthesized lines based on allozyme and RFLP markers. Theor Appl Genet. 91(1):62–67. doi:https://doi.org/10.1007/BF00220859.
- Bhat RG, Subbarao KV. 2001. Reaction of broccoli to isolates of Verticillium dahliae from various hosts. Plant Dis. 85(2):141–146. doi:https://doi.org/10.1094/PDIS.2001.85.2.141.
- Blackshaw RE, Beckie HJ, Molnar LJ, Entz T, Moyer JR. 2005. Combining agronomic practices and herbicides improves weed management in wheat–canola rotations within zero-tillage production systems. Weed Sci. 53:(4):528–535. doi:https://doi.org/10.1614/WS-04-211R.
- Boland G, Hall R. 1994. Index of plant hosts of Sclerotinia sclerotiorum. Can J Plant Pathol. 16(2):93–108. doi:https://doi.org/10.1080/07060669409500766.
- Boland GJ, Hall R. 1988. Relationships between the spatial pattern and number of apothecia of Sclerotinia sclerotiorum and stem rot of soybean. Plant Pathol. 37(3):329–336. doi:https://doi.org/10.1111/j.1365-3059.1988.tb02082.x.
- Bolton MD, Thomma BPHJ, Nelson BD. 2006. Sclerotinia sclerotiorum (Lib.) de Bary: biology and molecular traits of a cosmopolitan pathogen. Mol Plant Pathol. 7(1):1–16. doi:https://doi.org/10.1111/j.1364-3703.2005.00316.x.
- Bradley CA, Lamey HA, Endres GJ, Henson RA, Hanson BK, McKay KR, Halvorson M, LeGare DG, Porter PM. 2006. Efficacy of fungicides for control of Sclerotinia stem rot of canola. Plant Dis. 90(9):1129–1134. doi:https://doi.org/10.1094/PD-90-1129.
- Brun H, Chevre AM, Fitt BDL, Powers S, Besnard AL, Ermel M, Huteau V, Marquer B, Eber F, Renard M, et al. 2010. Quantitative resistance increases the durability of qualitative resistance to Leptosphaeria maculans in Brassica napus. New Phytol. 185(1):285–299. doi:https://doi.org/10.1111/j.1469-8137.2009.03049.x
- Buczacki ST, Toxopeus H, Mattusch P, Johnston TD, Dixon GR, Hobolth GR. 1975. Study of physiologic specialization in Plasmodiophora brassicae: Proposals for attempted rationalization through an international approach. Trans Br Mycol Soc. 65(2):295–303. doi:https://doi.org/10.1016/S0007-1536(75)80013-1.
- Canola Council of Canada. 2014. The Canola Council of Canada’s Strategic Plan: 52 by 2025, Keep it Coming.
- Canola Council of Canada. 2020. Canola Encyclopedia: Blackleg in Canola. Canola Encylopedia. https://www.canolacouncil.org/canola-encyclopedia/diseases/blackleg/genetic-resistance/
- Canola Council of Canada. 2021. Canola Encyclopedia: Diseases. https://www.canolacouncil.org/canola-encyclopedia/diseases/
- Cantila AY, Mohd Saad NS, Amas JC, Edwards D, and Batley J. 2021. Recent findings unravel genes and genetic factors underlying Leptosphaeria maculans resistance in Brassica napus and its relatives. Int J Mol Sci. 22(1):313. doi:https://doi.org/10.3390/ijms22010313.
- Cao T, Manolii VP, Hwang SF, Howard RJ, Strelkov SE. 2009. Virulence and spread of Plasmodiophora brassicae [clubroot] in Alberta, Canada. Can J Plant Pathol. 31:321–329.
- Chalhoub B, Denoeud F, Liu S, Parkin IA, Tang H, Wang X, Chiquet J, Belcram H, Tong C, Samans B, et al. 2014. Early allopolyploid evolution in the post-Neolithic Brassica napus oilseed genome. Sci. 345(6199):950–953. doi:https://doi.org/10.1126/science.1253435
- Chang A, Lamara M, Wei Y, Hu H, Parkin IA, Gossen BD, Peng G, Yu F. 2019. Clubroot resistance gene Rcr6 in Brassica nigra resides in a genomic region homologous to chromosome A08 in B. rapa. BMC Plant Biol. 19(1):224. doi:https://doi.org/10.1186/s12870-019-1844-5.
- Chen J, Jing J, Zhan Z, Zhang T, Zhang C, Piao Z. 2013. Identification of novel QTLs for isolate-specific partial resistance to Plasmodiophora brassicae in Brassica rapa. PLoS ONE. 8(12):e85307. doi:https://doi.org/10.1371/journal.pone.0085307.
- Chen S, Zou J, Cowling WA, Meng J. 2010. Allelic diversity in a novel gene pool of canola-quality Brassica napus enriched with alleles from B. rapa and B. carinata. Crop Pasture Sci. 61(6):483–492. doi:https://doi.org/10.1071/CP09327.
- Chen W, Li Y, Yan R, Ren L, Liu F, Zeng L, Yang H, Chi P, Wang X, Chen K, et al. 2019. Identification and characterization of Plasmodiophora brassicae primary infection effector candidates that suppress or induce cell death in host and nonhost plants. Phytopathol. 109:1689–1697. doi:https://doi.org/10.1094/PHYTO-02-19-0039-R.
- Chèvre AM, Barret P, Eber F, Dupuy P, Brun H, Tanguy X, Renard M. 1997. Selection of stable Brassica napus-B. juncea recombinant lines resistant to blackleg (Leptosphaeria maculans) 1. Identification of molecular markers, chromosomal and genomic origin of the introgression. Theor Appl Genet. 95(7):1104–1111. doi:https://doi.org/10.1007/s001220050669.
- Chevre AM, Eber F, This P, Barret P, Tanguy X, Brun H, Delseny M, Renard M. 1996. Characterization of Brassica nigra chromosomes and of blackleg resistance in B. napus-B. nigra addition lines. Plant Breed. 115(2):113–118. doi:https://doi.org/10.1111/j.1439-0523.1996.tb00884.x.
- Christianson JA, Rimmer SR, Good AG, Lydiate DJ. 2006. Mapping genes for resistance to Leptosphaeria maculans in Brassica juncea. Genome. 49(1):30–41. doi:https://doi.org/10.1139/g05-085.
- Chu M, Song T, Falk KC, Zhang X, Liu X, Chang A, Lahlali R, McGregor L, Gossen BD, Yu F, et al. 2014. Fine mapping of Rcr1 and analyses of its effect on transcriptome patterns during infection by Plasmodiophora brassicae. BMC Genom. 15(1):1166. doi:https://doi.org/10.1186/1471-2164-15-1166
- Colton RT, Sykes JD 1992. Canola. Agfact P5. 2.1. New South Wales Agriculture, Orange, NSW, Australia, 52pp.
- Cornelsen J, Jurke C, Rempel C. 2019. Joint meeting of the Canadian Phytopathological Society and the Quebec Society for the protection of plants, 2018. Can J Plant Pathol. 21:138–167.
- Cornelsen J, Zou Z, Huang S, Parks P, Lange R, Peng G, Fernando WGD. 2021. Validating the strategic deployment of blackleg resistance gene groups in commercial canola fields on the Canadian Prairies. Front Plant Sci. 12:669997. doi:https://doi.org/10.3389/fpls.2021.669997.
- De Vallavieille-pope C, Ali S, Leconte M, Enjalbert J, Delos M, Rouzet J. 2012. Virulence dynamics and regional structuring of Puccinia striiformis f. sp. tritici in France between 1984 and 2009. Plant Dis. 96(1):131–140. doi:https://doi.org/10.1094/PDIS-02-11-0078.
- Degrave A, Wagner M, George P, Coudard L, Pinochet X, Ermel M, Gay EJ, Fudal I, Moreno-Rico M, Rouxel T, et al. 2021. A new avirulence gene of Leptosphaeria maculans, AvrLm14, identifies a resistance in American broccoli (Brassica oleracea) genotypes. Mol Plant Pathol. 00:1–14.
- del Río LE, Bradley CA, Henson RA, Endres GJ, Hanson BK, McKay K, Halvorson M, Porter PM, Le Gare DG, Lamey HA. 2007. Impact of Sclerotinia stem rot on yield of canola. Plant Dis. 91(2):191–194. doi:https://doi.org/10.1094/PDIS-91-2-0191.
- Delourme R, Bousset L, Ermel M, Duffe P, Besnard A-L, Marquer B, Fudal I, Linglin J, Chadœuf J, Brun H. 2014. Quantitative resistance affects the speed of frequency increase but not the diversity of the virulence alleles overcoming a major resistance gene to Leptosphaeria maculans in oilseed rape. Infection, Genetics and Evolution. 27:490–499. doi:https://doi.org/10.1016/j.meegid.2013.12.019.
- Delourme R, Pilet-Nayel ML, Archipiano M, Horvais R, Tanguy X, Rouxel T, Brun H, Renard M, Balesdent MH. 2004. A cluster of major specific resistance genes to Leptosphaeria maculans in Brassica napus. Phytopathology. 94(6):578–583. doi:https://doi.org/10.1094/PHYTO.2004.94.6.578.
- Depotter JR, Deketelaere S, Inderbitzin P, Tiedemann AV, Hofte M, Subbarao KV, Wood TA, Thomma BPHJ. 2016. Verticillium longisporum, the invisible threat to oilseed rape and other brassicaceous plant hosts. Mol Plant Pathol. 17(7):1004–1016. doi:https://doi.org/10.1111/mpp.12350.
- Derbyshire MC, Denton-Giles M. 2016. The control of sclerotinia stem rot on oilseed rape (Brassica napus): current practices and future opportunities. Plant Pathol. 65(6):859–877. doi:https://doi.org/10.1111/ppa.12517.
- Desjardins ML, Pradhan M, Bisht V. 2014. 2013 Manitoba crop diagnostic centre laboratory submissions. Can Plant Dis Surv. 94:37–44.
- Diederichsen E, Beckmann J, Schondelmeier J, Dreyer F. 2006. Genetics of clubroot resistance in Brassica napus ‘Mendel’. Acta Hort. 706:307–312. doi:https://doi.org/10.17660/ActaHortic.2006.706.35.
- Diederichsen E, Frauen M, Linders EGA, Hatakeyama K, Hirai M. 2009. Status and perspectives of clubroot resistance breeding in crucifer crops. J Plant Growth Regul. 28(3):265–281. doi:https://doi.org/10.1007/s00344-009-9100-0.
- Ding LN, Li T, Guo XJ, Li M, Liu XY, Cao J, Tan XL. 2021. Sclerotinia stem rot resistance in rapeseed: recent progress and future prospects. J Agric Food Chem. 69(10):2965–2978. doi:https://doi.org/10.1021/acs.jafc.0c07351.
- Dixelius C, Happstadius I, Berg G. 2005. Verticillium wilt on Brassica oil crops – A Swedish perspective. J Swedish Seed Assoc. 115:36–48.
- Dixon GR. 2006. The biology of Plasmodiophora brassicae Wor. A review of recent advances. Acta Hort. 706:271–282. doi:https://doi.org/10.17660/ActaHortic.2006.706.32.
- Dixon GR. 2009. The occurrence and economic impact of Plasmodiophora brassicae and clubroot disease. J Plant Growth Regul. 28(3):194–202. doi:https://doi.org/10.1007/s00344-009-9090-y.
- Dokken FL, Bouchard AJ, Bassendowski KA, Ippolito J, Peng G, Strelkov S, Kirkham CL, Kutcher HR. 2009. Detection of Plasmodiophora brassicae in Saskatchewan, 2008. Can Plant Dis Surv. 90:126.
- Donald C. Porter, and I. 2009. Integrated control of clubroot. J. Plant Growth Regul. 28(3): 289–303. doi:https://doi.org/10.1007/s00344-009-9094-7
- Donald C, Porter I. 2009. Integrated control of clubroot. J Plant Growth Regul. 28(3):289–303. doi:https://doi.org/10.1007/s00344-009-9094-7.
- Dunker S, Keunecke H, Steinbach P, Von Tidemann A. 2008. Impact of Verticillium longisporum on yield and morphology of winter oilseed rape (Brassica napus) in relation to systemic spread in the plant. Phytopathol. 156(11–12):698–707. doi:https://doi.org/10.1111/j.1439-0434.2008.01429.x.
- Eastburn DM, Paul VH. 2007. Verticillium wilt. In: Rimmer SR, Shattuck VI, Buchwaldt L, editors. Compendium of Brassica Diseases. St Paul (MN): APS Press; p. 47–50.
- Elad Y, Chet I, Baker R. 1987. Increased growth response of plants induced by rhizobacteria antagonistic to soilborne pathogenic fungi. Plant Soil. 98(3):325–330. doi:https://doi.org/10.1007/BF02378353.
- Ellendorff U, Fradin EF, Jonge R, Thomma BPHJ. 2009. RNA silencing is required for Arabidopsis defense against Verticillium wilt disease. J Exp Bot. 60(2):591–602. doi:https://doi.org/10.1093/jxb/ern306.
- Eynck C, Koopmann B, Karlovsky P, von Tiedemann A. 2009. Internal resistance in winter oilseed rape inhibits systemic spread of the vascular pathogen Verticillium longisporum. Phytopathol. 99(7):802–811. doi:https://doi.org/10.1094/PHYTO-99-7-0802.
- Falak I, McNabb W, Hacault K, and Patel J 2011. Field performance of Brassica napus L. spring canola hybrids with improved resistance to Sclerotinia stem rot. Proc. 13th Int. Rapeseed Congress. Prague, Czech Republic. 622–626.
- Fernando W, Zhang X, Amarasinghe C. 2016. Detection of Leptosphaeria maculans and Leptosphaeria biglobosa causing blackleg disease in canola from Canadian canola seed lots and dockage. Plants. 5:12. doi:https://doi.org/10.3390/plants5010012.
- Ferreira ME, Rimmer SR, Williams PH, Osborn TC. 1995. Mapping loci controlling Brassica napus resistance to Leptosphaeria maculans under different screening conditions. Phytopathology. 85:213–217. doi:https://doi.org/10.1094/Phyto-85-213.
- Fitt BDL, Brun H, Barbetti MJ, Rimmer SR. 2006. World-wide importance of phoma stem canker (Leptosphaeria maculans and L. biglobosa) on oilseed rape (Brassica napus). Eur J Plant Pathol. 114(1):3–15. doi:https://doi.org/10.1007/s10658-005-2233-5.
- Flor HH. 1971. Current status of the gene-fob-gene concept. Ann Rev Phytopathol. 9(1):275–296. doi:https://doi.org/10.1146/annurev.py.09.090171.001423.
- Fradin EF, Abd‐El‐Haliem A, Masini L, GCM VDB, Joosten MHAJ, Thomma BPHJ. 2011. Interfamily transfer of tomato Ve1 mediates Verticillium resistance in Arabidopsis. Plant Physiol. 156(4):2255–2265. doi:https://doi.org/10.1104/pp.111.180067.
- Fradin EF, Thomma BPHJ. 2006. Physiology and molecular aspects of Verticillium wilt diseases caused by V. dahliae and V. albo-atrum. Mol Plant Pathol. 7(2):71–86. doi:https://doi.org/10.1111/j.1364-3703.2006.00323.x.
- Fradin EF, Zhang Z, Ayala JCJ, Castroverde CDM, Nazar RN, Robb J, Liu CM, Thomma BPHJ. 2009. Genetic dissection of Verticillium wilt resistance mediated by tomato Ve1. Plant Physiol. 150(1):320–332. doi:https://doi.org/10.1104/pp.109.136762.
- Fraser M, Strelkov SE, Turnbull GD, Ahmed HU, Barton W, Hwang SF. 2020. Evaluation of pyraclostrobin as a component in seed and foliar fungicides for the management of blackleg (Leptosphaeria maculans) of canola (Brassica napus). Can J Plant Sci. 100:549–559. doi:https://doi.org/10.1139/cjps-2019-0135.
- Fredua-Agyeman R, Coriton O, Huteau V, Parkin IA, Chevre AM, Rahman H. 2014. Molecular cytogenetic identification of B genome chromosomes linked to blackleg disease resistance in Brassica napus x B. carinata interspecific hybrids. Theor Appl Genet. 127:1305–1318. doi:https://doi.org/10.1007/s00122-014-2298-7.
- Fu F, Liu X, Wang R, Zhai C, Peng G, Yu F, Fernando WGD. 2019. Fine mapping of Brassica napus blackleg resistance gene Rlm1 through bulked segregant RNA sequencing. Sci Rep. 9(1):14600. doi:https://doi.org/10.1038/s41598-019-51191-z.
- Fu F, Zhang X, Liu F, Peng G, Yu F, Fernando D. 2020. Identification of resistance loci in Chinese and Canadian canola/rapeseed varieties against Leptosphaeria maculans based on Genome-Wide Association Studies. BMC Genomics. 21(1):501. doi:https://doi.org/10.1186/s12864-020-06893-4.
- Fuchs M. 2017. Pyramiding resistance-conferring gene sequences in crops. Curr Opin Virol. 26:36–42. doi:https://doi.org/10.1016/j.coviro.2017.07.004.
- Fudal I, Ross S, Gout L, Blaise F, Kuhn ML, Eckert MR, Cattolico L, Bernard-Samain S, Balesdent MH, Rouxel T. 2007. Heterochromatin-like regions as ecological niches for avirulence genes in the Leptosphaeria maculans genome: map-based cloning of AvrLm6. Mol Plant Microbe Interact. 20(4):459–470. doi:https://doi.org/10.1094/MPMI-20-4-0459.
- Gabur I, Chawla HS, Lopisso DT, von Tiedemann A, Snowdon RJ, Obermeier C. 2020. Gene presence-absence variation associates with quantitative Verticillium longisporum disease resistance in Brassica napus. Nat Sci Rep. 10(1):4131. doi:https://doi.org/10.1038/s41598-020-61228-3.
- Gaebelein R, Alnajar D, Koopmann B, Mason AS. 2019. Hybrids between Brassica napus and B. nigra show frequent pairing between the B and A/C genomes and resistance to blackleg. Chromosome Res. 27(3):221–236. doi:https://doi.org/10.1007/s10577-019-09612-2.
- Gaeta RT, Pires JC. 2010. Homoeologous recombination in allopolyploids: the polyploid ratchet. New Phytol. 186(1):18–28. doi:https://doi.org/10.1111/j.1469-8137.2009.03089.x.
- Gahatraj S, Shrestha SM, Devkota T, Rai HH. 2019. A review on club root of crucifers: symptoms, life cycle of pathogen, factors affecting severity, and management strategies. Arch Agric Environ Sci. 4:342–349. doi:https://doi.org/10.26832/24566632.2019.0403012.
- Ghanbarnia K, Fernando WGD, Crow G. 2011. Comparison of disease severity and incidence at different growth stages of naturally infected canola plants under field conditions by pycnidiospores of Phoma lingam as a main source of inoculum. Can J Plant Pathol. 33:355–363. doi:https://doi.org/10.1080/07060661.2011.593189.
- Ghanbarnia K, Fudal I, Larkan NJ, Links MG, Balesdent MH, Profotova B, Fernando WGD, Rouxel T, Borhan MH. 2015. Rapid identification of the Leptosphaeria maculans avirulence gene AvrLm2 using an intraspecific comparative genomics approach. Mol Plant Pathol. 16:699–709. doi:https://doi.org/10.1111/mpp.12228.
- Ghanbarnia K, Lydiate DJ, Rimmer SR, Li G, Kutcher HR, Larkin NJ, Pbe M, Fernando WGD. 2012. Genetic mapping of the Leptosphaeria maculans avirulence gene corresponding to the LepR1 resistance gene of Brassica napus. Theor Appl Genet. 124:05–513. doi:https://doi.org/10.1007/s00122-011-1724-3.
- Ghanbarnia K, Ma L, Larkan NJ, Haddadi P, Fernando WGD, Borhan MH. 2018. Leptosphaeria maculans AvrLm9: a new player in the game of hide and seek with AvrLm4-7. Mol Plant Pathol. 19(7):1754–1764. doi:https://doi.org/10.1111/mpp.12658.
- Golicz AA, Martinez PA, Zander M, Patel DA, Van De Wouw AP, Visendi P, Fitzgerald TL, Edwards D, Batley J. 2015. Gene loss in the fungal canola pathogen Leptosphaeria maculans. Funct Integr Genomics. 15(2):189–196. doi:https://doi.org/10.1007/s10142-014-0412-1.
- Gossen BD, Rimmer SR, Holley JD. 2001. First report of resistance to benomyl fungicide in Sclerotinia sclerotiorum. Plant Dis. 85(11):1206. doi:https://doi.org/10.1094/PDIS.2001.85.11.1206C.
- Gout L, Fudal I, Kuhn ML, Blaise F, Eckert M, Cattolico L, Balesdent MH, Rouxel T. 2006. Lost in the middle of nowhere: the AvrLm1 avirulence gene of the Dothideomycete Leptosphaeria maculans. Mol Microbiol. 60:67–80. doi:https://doi.org/10.1111/j.1365-2958.2006.05076.x.
- Grains Research and Development Corporation (GRDC). 2018. Spring variety ratings fact sheet: Blackleg Management Guide.
- Grandcle´ment C, Thomas G. 1996. Detection and analysis of QTL based on RAPD markers for polygenic resistance to Plasmodiophora brassicae Wor. in Brassica oleracea L. Theor Appl Genet. 93:86–90. doi:https://doi.org/10.1007/BF00225731.
- Gugel RK, Petrie GA. 1992. History, occurrence, impact, and control of blackleg of rapeseed. Can J Plant Pathol. 14(1):36–45. doi:https://doi.org/10.1080/07060669209500904.
- Guide to Field Crop Protection. 2021. https://www.gov.mb.ca/agriculture/crops/guides-and-publications/pubs/guide-crop-protection-2021.pdf
- Günzelmann H, Paul VH. 1990. Zum Auftreten und zur Bedeutung der Verticillium‐Welke an Raps in der Bundesrepublik Deutschland in 1989. Raps. 8:23–25.
- Guo X, Fernando WGD, Entz M. 2008. Dynamics of infection by Leptosphaeria maculans on canola (Brassica napus) as influenced by crop rotation and tillage. Arch Phytopathol. 41:57–66. doi:https://doi.org/10.1080/03235400600655388.
- Guo XW, Fernando WGD, Entz M. 2005. Effects of crop rotation and tillage on blackleg disease of canola. Can J Plant Pathol. 27(1):53–57. doi:https://doi.org/10.1080/07060660509507193.
- Gyawali S, Harrington M, Durkin J, Horner K, Parkin IA, Hegedus DD, Bekkaoui D, Buchwaldt L. 2016. Microsatellite markers used for genome-wide association mapping of partial resistance to Sclerotinia sclerotiorum in a world collection of Brassica napus. Mol Breed. 36(6):72. doi:https://doi.org/10.1007/s11032-016-0496-5.
- Hammond KE, Lewis BG, Musa TM. 1985. A systemic pathway in the infection of oilseed rape plants by Leptosphaeria maculans. Plant Pathol. 34(4):557–565. doi:https://doi.org/10.1111/j.1365-3059.1985.tb01407.x.
- Happstadius I, Ljungberg A, Kristiansson B, Dixelius C. 2003. Identification of Brassica oleracea germplasm with improved resistance to Verticillium wilt. Plant Breed. 122(1):30–34. doi:https://doi.org/10.1046/j.1439-0523.2003.00774.x.
- Harding MW, Hill TB, Daniels GC, Rennie DC, Zuzak K, Feng J, and McDonald J. 2017. A survey for blackleg and sclerotinia stem rot on canola in Alberta in 2016. Canadian Plant Disease Survey. 97:168––173.
- Harker KN, O’Donovan JT, Turkington TK, Blackshaw RE, Lupwayi NZ, Smith EG, Johnson EN, Gan Y, Kutcher HR, Dosdall LM, et al. 2015a. Canola rotation frequency impacts canola yield and associated pest species. Can J Plant Sci. 95(1):9–20. doi:https://doi.org/10.4141/cjps-2014-289.
- Harker N, O’Donovan JT, Turkington TK, Blackshaw R, Lupwayi NZ, Smith EG, Dosdall LM, Hall LM, Kutcher HR, and Willenborg CJ, et al. 2015b. Canola cultivar mixtures and rotations do not mitigate the negative impacts of continuous canola. Can J Plant Sci. 95:1085-1099. doi:https://doi.org/10.4141/CJPS-2015-126.
- Hayward A, Mclanders J, Campbell E, Edwards D, Batley J. 2012. Genomic advances will herald new insights into the Brassica: Leptosphaeria maculans pathosystem. Plant Biol. 14:1–10. doi:https://doi.org/10.1111/j.1438-8677.2011.00481.x.
- Hegewald H, Wensch-Dorendorf M, Sieling K, Christen O. 2018. Impacts of break crops and crop rotations on oilseed rape productivity: a review. Eur J Agron. 101:63–77. doi:https://doi.org/10.1016/j.eja.2018.08.003.
- Henderson MP. 1918. The black-leg disease of cabbage caused by Phoma lingam (Tode) Desmaz. Univ Wis Madison. 8:379–431.
- Hirai M, Harada T, Kubo N, Tsukada M, Suwabe K, Matsumoto S. 2004. A novel locus for clubroot resistance in Brassica rapa and its linkage markers. Theor Appl Genet. 108(4):639–643. doi:https://doi.org/10.1007/s00122-003-1475-x.
- Hollman KB, Hwang SF, Manolii VP, Strelkov SE. 2021. Pathotypes of Plasmodiophora brassicae collected from clubroot resistant canola (Brassica napus L.) cultivars in western Canada in 2017–2018. Can J Plant Pathol. 43(4):622–630. doi:https://doi.org/10.1080/07060661.2020.1851893.
- Honghao LV, Fang Z, Yang L, Zhang Y, Wang Y. 2020. An update on the arsenal: mining resistance genes for disease management of Brassica crops in the genomic era. Hortic Res. 7:34. doi:https://doi.org/10.1038/s41438-020-0257-9.
- Howard RJ, Strelkov SE, Harding MW. 2010. Clubroot of cruciferous crops-new perspectives on an old disease. Can J Plant Pathol. 32:43–57. doi:https://doi.org/10.1080/07060661003621761.
- Howe K, Wood JMD. 2015. Using optical mapping data for the improvement of vertebrate genome assemblies. Giga Sci. 4(1):10. doi:https://doi.org/10.1186/s13742-015-0052-y.
- Huang HC, Erickson RS, Phillippe LM, Mueller CA, Sun SK, Huang JW. 2006. Control of apothecia of Sclerotinia sclerotiorum by soil amendment with S-H mixture or Perlka in bean, canola and wheat fields. Soil Biol Biochem. 38:1348–1352. doi:https://doi.org/10.1016/j.soilbio.2005.10.015.
- Huang Z, Peng G, Gossen BD, Yu F. 2019. Fine mapping of a clubroot resistance gene from turnip using SNP markers identified from bulked segregant RNA-Seq. Mol Breed. 39(9):131. doi:https://doi.org/10.1007/s11032-019-1038-8.
- Huang Z, Peng G, Liu X, Deora A, Falk KC, Gossen BD, McDonald MR, Yu F. 2017. Fine mapping of a clubroot resistance gene in chinese cabbage using SNP Markers ientified from bulked segregant RNA sequencing. Front Plant Sci. 8:1448. doi:https://doi.org/10.3389/fpls.2017.01448.
- Hwang SF, Ahmed HU, Strelkov SE, Gossen BD, Turnbull GD, Peng G, Howard RJ. 2010. Seedling age and inoculum density affect clubroot severity and seed yield in canola. Can J Plant Sci. 91:183–190. doi:https://doi.org/10.4141/cjps10066.
- Hwang SF, Strelkov S, Peng G, Ahmed H, Zhou Q, Turnbull G. 2016. Blackleg (Leptosphaeria maculans) Severity and Yield Loss in Canola in Alberta, Canada. Plants. 5(3):31. doi:https://doi.org/10.3390/plants5030031.
- Jain M, Olsen HE, Paten B, Akeson M. 2016. The oxford nanopore MinION: delivery of nanopore sequencing to the genomics community. Genome Biol. 17(1):239. doi:https://doi.org/10.1186/s13059-016-1103-0.
- Jamaux I, Gelie B, Lamarque C. 1995. Early stages of infection of rapeseed petals and leaves by Sclerotinia sclerotiorum revealed by scanning electron microscopy. Plant Pathol. 44(1):22–30. doi:https://doi.org/10.1111/j.1365-3059.1995.tb02712.x.
- Johansson A. 2006. Verticillium longisporum, infection, host range, prevalence and plant defence responses. Licentiate thesis Swedish University of Agricultural Sciences, Uppsala.
- Johansson A, Staal J, Dixelius C. 2006. Early responses in the Arabidopsis-Verticillium longisporum pathosystem are dependent on NDR1, JA- and ET-associated signals via cytosolic NPR1 and RFO1. Mol Plant Microbe Interact. 19(9):958–969. doi:https://doi.org/10.1094/MPMI-19-0958.
- Jones JDG, Dangl JL. 2006. The plant immune system. Nature. 444(7117):323–329. doi:https://doi.org/10.1038/nature05286.
- Juska A, Busch L, Tanaka K. 1997. The blackleg epidemic in Canadian rapeseed as a ‘normal agricultural accident’. Ecol Appl. 7:1350–1356.
- Kageyama K, Asano T. 2009. Life cycle of Plasmodiophora brassicae. J Plant Growth Regul. 28:203–211. doi:https://doi.org/10.1007/s00344-009-9101-z.
- Karim MM, Dakouri A, Zhang Y, Chen Q, Peng G, Strelkov SE, Gossen BD, Yu F. 2020. Two clubroot-resistance genes, Rcr3 and Rcr9wa, mapped in Brassica rapa using bulk segregant RNA sequencing. Int J Mol Sci. 21(14):5033. doi:https://doi.org/10.3390/ijms21145033.
- Kato T, Hatakeyama K, Fukino N, Matsumoto S. 2012. Identificaiton of a clubroot resistance locus conferring resistance to a Plasmodiophora brassicae classified into pathotype group 3 in Chinese cabbage (Brassica rapa L.). Breed Sci. 62(3):282–287. doi:https://doi.org/10.1270/jsbbs.62.282.
- Kawchuk LM, Hachey J, Lynch DR, Kulcsa F, van Rooijen G, Waterer DR, Robertson A, Kokko E, Byers R, Howard RJ, et al. 2001. Tomato Ve disease resistance genes encode cell surface-like receptors. Proc Natl Acad Sci USA. 98(11):6511–6515. doi:https://doi.org/10.1073/pnas.091114198.
- Kemmochi I, Kobayashi I, Tsuchiya M, Sakai H, Shimizu M. 2000. Breeding materials for resistance to Verticillium wilt in Japanese cabbage. J Japan Soc Hort Sci. 69:483–491. doi:https://doi.org/10.2503/jjshs.69.483.
- Khangura R, Beard C. 2015. Managing sclerotinia stem rot in canola. Department of Agriculture and Food. Australian Government. https://www.agric.wa.gov.au/canola/managing-sclerotinia-stem-rot-canola.
- Kharbanda PD, Tewari JP. 1996. Integrated management of canola diseases using cultural methods. Can J Plant Pathol. 18(2):168–175. doi:https://doi.org/10.1080/07060669609500642.
- Kirk PM, Cannon PF, Minter DW, Stalpers JA. 2008. Dictionary of the fungi. 10th ed. Wallingford: CABI; p. 724.
- Klosterman SJ, Atallah ZK, Vallad GE, Subbarao KV. 2009. Diversity, pathogenicity, and management of Verticillium species. Annu Rev Phytopathol. 47(1):39–62. doi:https://doi.org/10.1146/annurev-phyto-080508-081748.
- Knüfer J, Lopisso DT, Koopmann B, Karlovsky P, von Tiedemann A. 2017. Assessment of latent infection with Verticillium longisporum in field-grown oilseed rape by qPCR. Euro J Plant Pathol. 147(4):819–831. doi:https://doi.org/10.1007/s10658-016-1045-0.
- Koch S, Dunker S, Kleinhenz B, Rohrig M, von Tiedemann A. 2007. A crop loss-related forecasting model for sclerotinia stem rot in winter oilseed rape. Phytopathol. 97(9):1186–1194. doi:https://doi.org/10.1094/PHYTO-97-9-1186.
- Kutcher HR, Brandt SA, Smith EG, Ulrich D, Malhi SS, Johnston AM. 2013. Blackleg disease of canola mitigated by resistant cultivars and four-year crop rotations in western Canada. Can J Plant Pathol. 35(2):209–221. doi:https://doi.org/10.1080/07060661.2013.775600.
- Kutcher HR, Keri M, McLaren DL, Rimmer SR. 2007. Pathogenic variability of Leptosphaeria maculans in western Canada. Can J Plant Pathol. 29(4):388–393. doi:https://doi.org/10.1080/07060660709507484.
- Kutcher HR, Malhi SS. 2010. Residue burning and tillage effects on diseases and yield of barley (Hordeum vulgare) and canola (Brassica napus). Soil Tillage Res. 109(2):153–160. doi:https://doi.org/10.1016/j.still.2010.06.001.
- Kutcher HR, Turkington TK, Mclaren DL. 2011. Best management practices for blackleg disease of canola. Prairie Soils Crops J. 4:122–134.
- Laila R, Park JI, Robin AHK, Natarajan S, Vijayakumar H, Shirasawa K, Isobe S, Kim HT, and Nou IS. 2019. Mapping of a novel clubroot resistance QTL using ddRAD-seq in Chinese cabbage (Brassica rapa L.). BMC Plant Biol. 19, 13. doi:https://doi.org/10.1186/s12870-018-1615-8
- Landry BS, Hubert N, Crete R, Chang MS, Lincoln SE, Etoh T. 1992. A genetic map for Brassica oleracea based on RFLP markers detected with expressed DNA sequences and mapping of resistance genes to race 2 of Plasmodiophora brassicae (Woronin). Genome. 35(3):409–420. doi:https://doi.org/10.1139/g92-061.
- Lane D, Denton-Giles M, Derbyshire M, Kamphuis LG. 2019. Abiotic conditions governing the myceliogenic germination of Sclerotinia sclerotiorum allowing the basal infection of Brassica napus. Australas Plant Pathol. 48(2):85–91. doi:https://doi.org/10.1007/s13313-019-0613-0.
- Larkan NJ, Lydiate DJ, Parkin IA, Nelson MN, Epp DJ, Cowling WA, Rimmer SR, Borhan MH. 2013. The Brassica napus blackleg resistance gene LepR3 encodes a receptor-like protein triggered by the Leptosphaeria maculans effector AVRLM1. New Phytol. 197(2):595–605. doi:https://doi.org/10.1111/nph.12043.
- Larkan NJ, Ma L, Borhan MH. 2015. The Brassica napus receptor like protein RLM2 is encoded by a second allele of the LepR3/Rlm2 blackleg resistance locus. Plant Biotechnol J. 13(7):983–992. doi:https://doi.org/10.1111/pbi.12341.
- Larkan NJ, Yu F, Lydiate DJ, Rimmer SR, Borhan MH. 2016. Single R gene introgression lines for accurate dissection of the Brassica–Leptosphaeria Pathosystem. Front Plant Sci. 7:1771. doi:https://doi.org/10.3389/fpls.2016.01771.
- Leflon M, Brun H, Eber F, Delourme R, Lucas MO, Vallee P, Ermel M, Balesdent MH, Chèvre AM. 2007. Detection, introgression and localization of genes conferring specific resistance to Leptosphaeria maculans from Brassica rapa into B. napus. Theor Appl Genet. 115(7):897–906. doi:https://doi.org/10.1007/s00122-007-0616-z.
- Li C, Lin F, An D, Wang W, Huang R. 2017. Genome sequencing and assembly by long reads in plants. Genes. 9(1):6. doi:https://doi.org/10.3390/genes9010006.
- Li CX, Liu SY, Sivasithamparam K, Barbetti MJ. 2009. New sources of resistance to Sclerotinia stem rot caused by Sclerotinia sclerotiorum in Chinese and Australian Brassica napus and B. juncea germplasm screened under Western Australian conditions. Australas Plant Pathol. 38(2):149–152. doi:https://doi.org/10.1071/AP08087.
- Li H, Kuo J, Barbetti MJ, Sivasithamparam K. 2007. Differences in the responses of stem tissues of spring-type Brassica napus cultivars with polygenic resistance and single dominant gene-based resistance to inoculation with Leptosphaeria maculans. Can J Bot. 85(2):191–203. doi:https://doi.org/10.1139/B06-159.
- Li J, Zhao Z, Hayward A, Cheng H, Fu D. 2015. Integration analysis of quantitative trait loci for resistance to Sclerotinia sclerotiorum in Brassica napus. Euphytica. 205(2):483–489. doi:https://doi.org/10.1007/s10681-015-1417-0.
- Li L, Luo Y, Chen B, Xu K, Zhang F, Li H, Huang Q, Xiao X, Zhang T, Hu J, et al. 2016. A genome-wide association study reveals new loci for resistance to clubroot disease in Brassica napus. Front Plant Sci. 7:1483. doi:https://doi.org/10.3389/fpls.2016.01483.
- Liban SH, Cross DJ, Kutcher HR, Peng G, Fernando WGD. 2016. Race structure and frequency of avirulence genes in the western Canadian Leptosphaeria maculans pathogen population, the causal agent of blackleg in brassica species. Plant Pathol. 65(7):1161–1169. doi:https://doi.org/10.1111/ppa.12489.
- Liu F, Zou Z, Huang S, Parks P, Fernando WGD. 2020. Development of a specific marker for detection of a functional AvrLm9 allele and validating the interaction between AvrLm7 and AvrLm9 in Leptosphaeria maculans. Mol Biol Rep. 47(9):7115–7123. doi:https://doi.org/10.1007/s11033-020-05779-8.
- Liu S, Liu Y, Yang X, Tong C, Edwards D, Parkin I, Zhao M, Ma J, Yu J, Huang S, et al. 2014. The Brassica oleracea genome reveals the asymmetrical evolution of polyploid genomes. Nat Commun. 5(1):3930. doi:https://doi.org/10.1038/ncomms4930
- Lof ME, van der Werf W. 2017. Modelling the effect of gene deployment strategies on durability of plant resistance under selection. Crop Prot. 97:10–17. doi:https://doi.org/10.1016/j.cropro.2016.11.031.
- Long Y, Wang Z, Sun Z, Fernando DW, McVetty PB, Li G. 2011. Identification of two blackleg resistance genes and fine mapping of one of these two genes in a Brassica napus canola cultivar ‘Surpass 400’. Theor Appl Genet. 122(6):1223–1231. doi:https://doi.org/10.1007/s00122-010-1526-z.
- Lopez-Millan AF, Morales F, Abadı́a A, Abadı́a J. 2000. Effects of iron deficiency on the composition of the leaf apoplastic fluid and xylem sap in sugar beet. Implications for iron and carbon transport. Plant Physiol. 124(2):873–884. doi:https://doi.org/10.1104/pp.124.2.873.
- Manitoba Agriculture. 2018. Guide to Field Crop Protection 2018. Available at: https://www.gov.mb.ca/agriculture/crops/guides-and-publications/pubs/crop-protection-guide-full.pdf
- Manzanares-Dauleux MJ, Delourme R, Baron F, Thomas G. 2000. Mapping of one major gene and of QTLs involved in resistance to clubroot in Brassica napus. Theor Appl Genet. 101(5–6):885–891. doi:https://doi.org/10.1007/s001220051557.
- Marcroft SJ, Sprague SJ, Salisbury PA, Howlett BJ. 2004. Potential for using host resistance to reduce production of pseudothecia and ascospores of Leptosphaeria maculans, the blackleg pathogen of Brassica napus. Plant Pathol. 53(4):468–474. doi:https://doi.org/10.1111/j.1365-3059.2004.01050.x.
- Marcroft SJ, Van de Wouw AP, Salisbury PA, Potter TD, Howlett BJ. 2012. Effect of rotation of canola (Brassica napus) cultivars with different complements of blackleg resistance genes on disease severity. Plant Pathol. 61(5):934–944. doi:https://doi.org/10.1111/j.1365-3059.2011.02580.x.
- Marone D, Russo MA, Laidò G, De Leonardis AM, Mastrangelo AM. 2013. Plant Nucleotide Binding site-leucine-rich Repeat (NBS-LRR) Genes: Active Guardians in Host Defense Responses. Int J Mol Sci. 14(4):7302–7326. doi:https://doi.org/10.3390/ijms14047302.
- Mason AS, Snowdon RJ, Weber A. 2016. Oilseed rape: learning about ancient and recent polyploid evolution from a recent crop species. Plant Biol. 18(6):883–892. doi:https://doi.org/10.1111/plb.12462.
- Mason AS, Zhang J, Tollenaere R, Vasquez Teuber P, Dalton-Morgan J, Hu L, Yan G, Edwards D, Redden R, Batley J. 2015. High-throughput genotyping for species identification and diversity assessment in germplasm collections. Mol Ecol Resour. 15(5):1091–1101. doi:https://doi.org/10.1111/1755-0998.12379.
- Matsumoto E, Ueno H, Aruga D, Sakamoto K, Hayashida N. 2012. Accumulation of Three Clubroot Resistance Genes through Marker-assisted Selection in Chinese Cabbage (Brassica rapa ssp. pekinensis). J Japan Soc Hort Sci. 81(2):184–190. doi:https://doi.org/10.2503/jjshs1.81.184.
- Matsumoto E, Yasui C, Ohi M, Tsukada M. 1998. Linkage analysis of RFLP markers for clubroot resistance and pigmentation in Chinese cabbage. Euphytica. 104(2):79–86. doi:https://doi.org/10.1023/A:1018370418201.
- Mayerhofer R, Good AG, Bansal VK, Thiagarajah MR, Stringam GR. 1997. Molecular mapping of resistance to Leptosphaeria maculans in Australian cultivars of Brassica napus. Genome. 40(3):294–301. doi:https://doi.org/10.1139/g97-041.
- McCartney HA, Lacey ME, Li Q, and Heran A. 1999. Airborne ascospore concentration and the infection of oilseed rape and sunflowers by Sclerotinia sclerotiorum. In: Wratten N, and Salisbury PA, editors. Proceedings of the 10th International Rapeseed Congress – New Horizons for an Old Crop, Canberra. The regional Institute Online Publishing. 3:430. http://www.regional.org.au/au/gcirc/3/430.htm
- McDonald BA, and Linde C. 2002. The population genetics of plant pathogens and breeding strategies for durable resistance. Euphytica. 124(2):163–180. doi:https://doi.org/10.1023/A:1015678432355.
- Mcdonald MR, Al-Daoud F, Sedaghatkish A, Moran M, Cranmer TJ, Gossen BD. 2020. Changes in the range and virulence of Plasmodiophora brassicae across Canada. Can J Plant Pathol. doi:https://doi.org/10.1080/07060661.2020.1797882
- McGee D. 1978. Variability of Leptospaheria maculans in relation to blackleg of oilseed rape. Phytopathol. 68(4):625–630. doi:https://doi.org/10.1094/Phyto-68-625.
- McLoughlin AG, Wytinck N, Walker PL, Girard IJ, Rashid KY, Kievit TD, Fernando WGD, Whyard S, Belmonte MF. 2018. Identification and application of exogenous dsRNA confers plant protection against Sclerotinia sclerotiorum and Botrytis cinerea. Sci Rep. 8(1):7320. doi:https://doi.org/10.1038/s41598-018-25434-4.
- Mehraj H, Akter A, Miyaji N, Miyazaki J, Shea DJ, Fujimoto R, Doullah MAU. 2020. Genetics of clubroot and fusarium wilt disease resistance in Brassica vegetables: the application of marker assisted breeding for disease resistance. Plants. 9(6):726. doi:https://doi.org/10.3390/plants9060726.
- Mei J, Ding Y, Lu K, Wei D, Liu Y, Disi JO, Li J, Liu L, Liu S, McKay J, et al. 2013. Identification of genomic regions involved in resistance against Sclerotinia sclerotiorum from wild Brassica oleracea. Theor Appl Genet. 126(2):549–556. doi:https://doi.org/10.1007/s00122-012-2000-x.
- Mei J, Liu Y, Wei D, Wittkop B, Ding Y, Li Q, Li J, Wan H, Li Z, Ge X, et al. 2015. Transfer of Sclerotinia resistance from wild relative of Brassica oleracea into Brassica napus using a hexaploidy step. Theor Appl Genet. 128(4):639–644. doi:https://doi.org/10.1007/s00122-015-2459-3.
- Mei J, Qian L, Disi JO, Yang X, Li Q, Li J, Frauen M, Cai D, Qian W. 2011. Identification of resistant sources against Sclerotinia sclerotiorum in Brassica species with emphasis on B. oleracea. Euphytica. 177(3):393–399. doi:https://doi.org/10.1007/s10681-010-0274-0.
- Mei J, Shao C, Yang R, Feng Y, Gao Y, Ding Y, Li J, Qian W. 2020. Introgression and pyramiding of genetic loci from wild Brassica oleracea into B. napus for improving Sclerotinia resistance of rapeseed. Theor Appl Genet. 133(4):1313–1319. doi:https://doi.org/10.1007/s00122-020-03552-w.
- Mendes-Pereira E, Balesdent M-H, Brun H, Rouxel T. 2003. Molecular phylogeny of the Leptosphaeria maculans-L. biglobosa species complex. Mycol Res. 107(11):1287–1304. doi:https://doi.org/10.1017/S0953756203008554.
- Mithen RF, Lewis BG, Heaney RK, Fenwick GR. 1987. Resistance of leaves of Brassica species to Leptosphaeria maculans. Trans Br Mycol Soc. 88(4):525–531. doi:https://doi.org/10.1016/S0007-1536(87)80036-0.
- Moose SP, Mumm RH. 2008. Molecular plant breeding as the foundation for 21st century crop improvement. Plant Physiol. 147(3):969–977. doi:https://doi.org/10.1104/pp.108.118232.
- Muirhead K, Pérez-López E. 2021. Plasmodiophora brassicae CBM18 proteins bind chitin and suppress chitin-triggered immunity. Phytopathol. https://doi-org.uml.idm.oclc.org/https://doi.org/10.1094/PHYTOFR-04-21-0032-R.
- Mundt CC. 2018. Pyramiding for resistance durability: Theory and practice. Phytopathol. 108(7):792–802. doi:https://doi.org/10.1094/PHYTO-12-17-0426-RVW.
- Murray G, Brennan JP. 2012. The current and potential costs from diseases of oilseed crops in Australia. https://www.grdc.com.au/Resources/Publications/2012/06/The-Current-and-Potential-Costs-from-Diseases-of-Oilseed-Crops-in-Australia.
- Naiki T, Dixon GR. 1987. The effects of chemicals on developmental stages of Plasmodiophora brassicae (clubroot). Plant Pathol. 36(3):316–327. doi:https://doi.org/10.1111/j.1365-3059.1987.tb02238.x.
- Neik TX, Amas J, Barbetti M, Edwards D, and Batley J. 2020. Understanding host–pathogen Interactions in Brassica napus in the Omics Era. Plants. 9(10):1336. doi:https://doi.org/10.3390/plants9101336.
- Neik TX, Barbetti M, Batley J. 2017. Current status and challenges in identifying disease resistance genes in Brassica napus. Front Plant Sci. 8:1788.
- Obermeier C, Hossain MA, Snowdon R, Knufer J, Tiedemann AV, Friedt W. 2013. Genetic analysis of phenylpropanoid metabolites associated with resistance against Verticillium longisporum in Brassica napus. Mol Breed. 31(2):347–361. doi:https://doi.org/10.1007/s11032-012-9794-8.
- Pageau D, Lajeunesse J, Lafond J. 2006. Impact de l’hernie des crucifères [Plasmodiophora brassicae] sur la productivitè et la qualitè du canola. Can J Plant Pathol. 28(1):137–143. doi:https://doi.org/10.1080/07060660609507280.
- Panth M, Hassler SC, Baysal-Gurel F. 2020. Methods for management of soil-borne diseases in crop production. Agric. 10:16.
- Parlange F, Daverdin G, Fudal I, Kuhn M-L, Balesdent M-H, Blaise F, Grezes-Besset B, Rouxel T. 2009. Leptosphaeria maculans avirulence gene AvrLm4-7 confers a dual recognition specificity by the Rlm4 and Rlm7 resistance genes of oilseed rape and circumvents Rlm4-mediated recognition through a single amino acid change. Mol Microbiol. 71(4):851–863. doi:https://doi.org/10.1111/j.1365-2958.2008.06547.x.
- Paul VH. 2003. Raps. Krankheiten, Schädlinge, Schadpflanzen. 3rd ed. Gelsenkirchen‐Buer, Germany: Verlag Th. Mann.
- Peng G, Liu X, McLaren DL, McGregor L, Yu F. 2020. Seed treatment with the fungicide fluopyram limits cotyledon infection by Leptosphaeria maculans and reduces blackleg of canola. Can J Plant Pathol. 42(4):4. doi:https://doi.org/10.1080/07060661.2020.1725132.
- Peng G, Mcgregor L, Lahlali R, Gossen BD, Hwang SF, Adhikari KK, Strelkov SE, McDonald ,MR. 2011. Potential biological control of clubroot on canola and crucifer vegetable crops. Plant Pathol. 60(3):566–574. doi:https://doi.org/10.1111/j.1365-3059.2010.02400.x.
- Peng L, Zhou L, Li Q, Wei D, Ren X, Song H, Mei J, Si J, Qian W. 2018. Identification of quantitative trait loci for Clubroot resistance in Brassica oleracea with the use of Brassica SNP microarray. Front Plant Sci. 9:822. doi:https://doi.org/10.3389/fpls.2018.00822.
- Pérez-López E, Waldner M, Hossain M, Kusalik AJ, Wei Y, Bonham-Smith PC, Todd CD. 2018. Identification of Plasmodiophora brassicae effectors — A challenging goal. Virulence. 9(1):1344–1353. doi:https://doi.org/10.1080/21505594.2018.1504560.
- Pérez‐López E, Hossain MM, Tu J, Waldner M, Todd CD, Kusalik AJ, Wei Y, Bonham‐Smith PC. 2020. Transcriptome Analysis Identifies Plasmodiophora brassicae Secondary Infection Effector Candidates. J Eukaryot Microbiol. 67(3):337–351. doi:https://doi.org/10.1111/jeu.12784.
- Petit‐Houdenot Y, Degrave A, Meyer M, Blaise F, Ollivier B, Marais C-L, Jauneau A, Audran C, Rivas S, Veneault‐Fourrey C, et al. 2019. A two genes – for – one gene interaction between Leptosphaeria maculans and Brassica napus. New Phytol. 223(1):397–411. doi:https://doi.org/10.1111/nph.15762
- Piao ZY, Deng YQ, Choi SR, Park YJ, Lim YP. 2004. SCAR and CAPS mapping of CRb, a gene conferring resistance to Plasmodiophora brassicae in Chinese cabbage (Brassica rapa ssp. pekinensis). Theor Appl Genet. 108(8):1458–1465. doi:https://doi.org/10.1007/s00122-003-1577-5.
- Piao ZY, Ramchiary N, Lim YP. 2009. Genetics of clubroot resistance in Brassica species. J Plant Growth Regul. 28(3):252–264. doi:https://doi.org/10.1007/s00344-009-9093-8.
- Pilet-Nayel M-L, Moury B, Caffier V, Montarry J, Kerlan M-C, Fournet S, Durel C-E, Delourme R. 2017. Quantitative resistance to plant pathogens in pyramiding strategies for durable crop protection. Front Plant Sci. 8:1–9. doi:https://doi.org/10.3389/fpls.2017.01838.
- Plissonneau C, Daverdin G, Ollivier B, Blaise F, Degrave A, Fudal I, Rouxel T, Balesdent M-H. 2016. A game of hide and seek between avirulence genes AvrLm4-7 and AvrLm3 in Leptosphaeria maculans. New Phytol. 209(4):1613–1624. doi:https://doi.org/10.1111/nph.13736.
- Plissonneau C, Rouxel T, Chèvre A-M, Van De Wouw AP, Balesdent M-H. 2018. One gene-one name: the AvrLmJ1 avirulence gene of Leptosphaeria maculans is AvrLm5. Mol Plant Pathol. 19(4):1012–1016. doi:https://doi.org/10.1111/mpp.12574.
- Raman H, McVittie B, Pirathiban R, Raman R, Zhang Y, Barbulescu DM, Qiu Y, Liu SH, Cullis B. 2020. Genome-wide association mapping identifies novel loci for quantitative resistance to blackleg Disease in canola. Front Plant Sci. 11:1184. doi:https://doi.org/10.3389/fpls.2020.01184.
- Raman H, Raman R, Coombes N, Song J, Diffey S, Kilian A, Lindbeck K, Barbulescu DM, Batley J, Edwards D, et al. 2016. Genome-wide association study identifies new loci for resistance to Leptosphaeria maculans in canola. Front Plant Sci. 7:1513. doi:https://doi.org/10.3389/fpls.2016.01513.
- Raman H, Raman R, Larkan N 2013. Genetic dissection of blackleg resistance loci in rapeseed (Brassica napus L.). Plant Breeding from Laboratories to Fields. Eds. Andersen, S. B. and Accessed.
- Raman H, Raman R, Qiu Y, Zhang Y, Batley J, Liu S. 2021. The Rlm13 gene, a new player of Brassica napus–Leptosphaeria maculans interaction maps on chromosome C03 in canola. Front Plant Sci. 12:654604. doi:https://doi.org/10.3389/fpls.2021.654604.
- Raman R, Taylor B, Marcroft S, Stiller J, Eckermann P, Coombes N, Rehman A, Lindbeck K, Luckett D, Wratten N, et al. 2012. Molecular mapping of qualitative and quantitative loci for resistance to Leptosphaeria maculans causing blackleg disease in canola (Brassica napus L.). Theor Appl Genet. 125(2):405–418. doi:https://doi.org/10.1007/s00122-012-1842-6
- Rana K, Atri C, Akhatar J, Kaur R, Goyal A, Singh Mohini P, Kumar N, Sharma A, Sandhu Prabhjodh S, Kaur G, et al. 2019. Detection of first marker trait associations for resistance against Sclerotinia sclerotiorum in Brassica juncea–Erucastrum cardaminoides introgression lines. Front Plant Sci. 10:1015. doi:https://doi.org/10.3389/fpls.2019.01015.
- Rashid MH, Liban S, Zhang X, Parks P, Borhan H, Fernando WGD. 2021. Impact of Brassica napus-Leptosphaeria maculans interaction on the emergence of virulent isolates of L. maculans, causal agent of blackleg disease in canola. Plant Pathol. 70(2):459–474. doi:https://doi.org/10.1111/ppa.13293.
- Raymer PL. 2002. Canola: an emerging oilseed crop. In: Janick J, Whipkey A, editors. Trends in new crops and new uses. Alexandria, VA: A.S.H.S. Press; p. 122–126.
- Rempel CB, Hutton SN, Jurke CJ. 2014. Clubroot and the importance of canola in Canada. Can J Plant Pathol. 36(sup1):19–26. doi:https://doi.org/10.1080/07060661.2013.864336.
- Reusche M, Thole K, Janz D, Truskina J, Rindfleisch S, Drubert C, Polle A, Lipka V, Teichmann T. 2012. Verticillium Infection Triggers VASCULAR-RELATED NAC DOMAIN7–dependent de Novo Xylem Formation and Enhances Drought Tolerance in Arabidopsis. Plant Cell. 24(9):3823–3837. doi:https://doi.org/10.1105/tpc.112.103374.
- Rimbaud L, Papaïx J, Rey JF, Barrett LG, Thrall PH. 2018. Assessing the durability and efficiency of landscape-based strategies to deploy plant resistance to pathogens. Manitoba Agriculture. Manitoba Guide to Field Crop Protection 2018.
- Rimmer S. 2006. Resistance genes to Leptosphaeria maculans in Brassica napus. Can J Plant Pathol. 28(sup1):S288–S297. doi:https://doi.org/10.1080/07060660609507386.
- Rimmer SR, Borhan MH, Zhu B, Somers D. 1999. Mapping resistance genes in Brassica napus to Leptophaeria maculans. in 10th International Rapeseed Congress. Canberra, ACT: The Regional Institute.
- Roberts RJ, Carneiro MO, Schatz MC. 2013. The advantages of SMRT sequencing. Genome Biol. 14(6):405. doi:https://doi.org/10.1186/gb-2013-14-6-405.
- Rocherieux J, Glory P, Giboulot A, Boury S, Barbeyron G, Thomas G, Manzanares-Dauleux MJ, Cao T, Manolii VP, Strelkov SE, et al. 2004. Isolate-specific and broad-spectrum QTLs are involved in the control of clubroot in Brassica oleracea. Theor Appl Genet. 108(8):1555–1563. doi:https://doi.org/10.1007/s00122-003-1580-x.
- Rouxel T, Balesdent M-H. 2013. From model to crop plant–pathogen interactions: cloning of the first resistance gene to Leptosphaeria maculans in Brassica napus. New Phytol. 197(2):356–358. doi:https://doi.org/10.1111/nph.12099.
- Rouxel T, Balesdent MH. 2005. The stem canker (blackleg) fungus, Leptosphaeria maculans, enters the genomic era. Mol Plant Pathol. 6(3):225–241. doi:https://doi.org/10.1111/j.1364-3703.2005.00282.x.
- Rouxel T, and Balesdent MH. 2010. Avirulence Genes. In: Encyclopedia of Life Sciences (ELS). Chichester: John Wiley & Sons, Ltd. Chichester. 1-13. doi:https://doi.org/10.1002/9780470015902.a0021267
- Rouxel T, Willner E, Coudard L, Balesdent M-H. 2003. Screening and identification of resistance to Leptosphaeria maculans (stem canker) in Brassica napus accessions. Euphytica. 133(2):219–231. doi:https://doi.org/10.1023/A:1025597622490.
- Rygulla W, Seyis F, Lühs W, Eynck C, von Tiedemann A, Friedt W, Snowdon RJ. 2007b. Combination of resistance to Verticillium longisporum from zero erucic acid Brassica oleracea and oilseed Brassica rapa genotypes in re-synthesized rapeseed (Brassica napus) lines. Phytopathol. 97(11):1391–1396. doi:https://doi.org/10.1094/PHYTO-97-11-1391.
- Rygulla W, Snowdon RJ, Eynck C, Koopmann B, von Tiedemann A, Lühs W, Friedt W. 2007a. Broadening the genetic basis of Verticillium longisporum resistance in Brassica napus by interspecific hybridization. Plant Breed. 126:596–602.
- Rygulla W, Snowdon RJ, Friedt W, Happstadius I, Cheung WY, Chen D. 2008. Identification of Quantitative Trait Loci for Resistance Against Verticillium longisporum in Oilseed Rape (Brassica napus). Phytopathol. 98(2):215–221. doi:https://doi.org/10.1094/PHYTO-98-2-0215.
- Sakamoto K, Saito A, Hayashida N, Taguchi G, Matsumoto E. 2008. Mapping of isolate-specific QTLs for clubroot resistance in Chinese cabbage (Brassica rapa L. ssp. pekinensis). Theor Appl Genet. 117(5):759–767. doi:https://doi.org/10.1007/s00122-008-0817-0.
- Schwelm A, Fogelqvist J, Knaust A, Julke S, Lilja T, Bonilla-Rosso G, Karlsson M, Shevchenko A, Dhandapani V, Choi SR, et al. 2015. The Plasmodiophora brassicae genome reveals insights in its life cycle and ancestry of chitin synthases. Sci Rep. 5(1):11153. doi:https://doi.org/10.1038/srep11153.
- Shoemaker RA, Brun H. 2001. The teleomorph of the weakly aggressive segregate of Leptosphaeria maculans. Can J Bot. 79:412–419.
- Snowdon RJ, Winter H, Diestel A, Sacristán MD. 2000. Development and characterization of Brassica napus-Sinapis arvensis addition lines exhibiting resistance to Leptosphaeria maculans. Theor Appl Genet. 101(7):1008–1014. doi:https://doi.org/10.1007/s001220051574.
- Somé A, Manzanares MJ, Laurens F, Baron F, Thomas G, Rouxel F. 1996. Variation for virulence on Brassica napus L. amongst Plasmodiophora brassicae collections from France derived from single-spore isolates. Plant Pathol. 45(3):432–439. doi:https://doi.org/10.1046/j.1365-3059.1996.d01-155.x.
- Soomro W, Kutcher R, Yu F, Hwang SF, Fernando D, Strelkov SE, and Peng G. 2020. The race structure of Leptosphaeria maculans in western Canada between 2012 and 2014 and its influence on blackleg of canola. Can J Plant Pathol. 43(3):1–14.
- Sprague SJ, Balesdent M-H, Brun H, Hayden HL, Marcroft SJ, Pinochet X, Rouxel T, Howlett BJ. 2006a. Major gene resistance in Brassica napus (oilseed rape) is overcome by changes in virulence of populations of Leptosphaeria maculans in France and Australia. Eur J Plant Pathol. 114(1):33–40. doi:https://doi.org/10.1007/s10658-005-3683-5.
- Sprague SJ, Marcroft SJ, Hayden HL, Howlett BJ. 2006b. Major gene resistance to blackleg in Brassica napus overcome within three years of commercial production in southeastern Australia. Plant Dis. 90(2):190–198. doi:https://doi.org/10.1094/PD-90-0190.
- Strelkov SE, Hwang S-F. 2014. Clubroot in the Canadian canola crop: 10 years into the outbreak. Can J Plant Pathol. 36(sup1):27–36. doi:https://doi.org/10.1080/07060661.2013.863807.
- Strelkov SE, Hwang S-F, Manolii VP, Cao T, Feindel D. 2016. Emergence of new virulence phenotypes of Plasmodiophora brassicae on canola (Brassica napus) in Alberta, Canada. Eur J Plant Pathol. 145(3):517–529. doi:https://doi.org/10.1007/s10658-016-0888-8.
- Strelkov SE, Hwang S-F, Manolii VP, Cao T, Fredua-Agyeman R, Harding MW, Peng G, Gossen BD, McDonald MR, Feindel D. 2018. Virulence and pathotype classification of Plasmodiophora brassicae populations collected from clubroot resistant canola (Brassica napus) in Canada. Can J Plant Pathol. 40(2):284–298. doi:https://doi.org/10.1080/07060661.2018.1459851.
- Strelkov SE, Manolii VP, Cao T, Xue S, Hwang SF. 2007. Pathotype Classification of Plasmodiophora brassicae and its Occurrence in Brassica napus in Alberta. Can J Phytopathol. 155(11–12):706–712. doi:https://doi.org/10.1111/j.1439-0434.2007.01303.x.
- Strelkov SE, Manolii VP, Howard RJ, Daniels GC, Nuffer P, Aigu Hwang SF. 2020. The occurrence and spread of clubroot on canola in Alberta in 2019. Can Plant Dis Surv. 100:117–120.
- Strelkov SE, Manolii VP, Lageyre J, Hwang SF, Harding MW, Daniels GC. 2019. The occurrence and spread of clubroot in Alberta in 2018. Can Plant Dis Surv. 99:160–163.
- Strelkov SE, Tewari JP, Smith-Degenhardt E, Diederichsen E, Frauen M. 2006. Characterization of Plasmodiophora brassicae populations from Alberta, Canada. Can J Plant Pathol. 28(3):467–474. doi:https://doi.org/10.1080/07060660609507321.
- Suwabe K, Suzuki G, Nunome T, Hatakeyama K, Mukai Y, Fukuoka H, Matsumoto S. 2012. Microstructure of a Brassica rapa genome segment homoeologous to the resistance gene cluster on Arabidopsis chromosome 4. Breed Sci. 62(2):170–177. doi:https://doi.org/10.1270/jsbbs.62.170.
- Suwabe K, Tsukazaki H, Iketani H, Hatakeyama K, Fujimura M, Nunome T, Fukuoka H, Matsumoto S, Hirai M. 2003. Identification of two loci for resistance to clubroot (Plasmodiophora brassicae Woronin) in Brassica rapa L. Theor Appl Genet. 107(6):997–1002. doi:https://doi.org/10.1007/s00122-003-1309-x.
- Suwabe K, Tsukazaki H, Iketani H, Hatakeyama K, Kondo M, Fujimura M, Nunome T, Fukuoka H, Hirai M, Matsumoto S. 2006. Simple Sequence Repeat-Based Comparative Genomics Between Brassica rapa and Arabidopsis thaliana: The Genetic Origin of Clubroot Resistance. Genetics. 173(1):309–319. doi:https://doi.org/10.1534/genetics.104.038968.
- Taylor A, Rana K, Handy C. 2018. Resistance to Sclerotinia sclerotiorum in wild Brassica species and the importance of Sclerotinia subarctica as a Brassica pathogen. Plant Pathol. 67(2):433–444. doi:https://doi.org/10.1111/ppa.12745.
- Tewari JP, Strelkov SE, Orchard D, Hartman M, Lange RM, Turkington TK. 2005. Identification of clubroot of crucifers on canola (Brassica napus) in Alberta. Can J Plant Pathol. 27(1):143–144. doi:https://doi.org/10.1080/07060660509507206.
- The Plant List. 2013. Version 1.1. Published on the Internet.
- Travadon R, Sache I, Dutech C, Stachowiak A, Marquer B, Bousset L. 2011. Absence of isolation by distance patterns at the regional scale in the fungal plant pathogen Leptosphaeria maculans. Fungal Biol. 115(7):649–659. doi:https://doi.org/10.1016/j.funbio.2011.03.009.
- Turkington TK, Morrall MAA. 1993. Use of petal infestation to forecast sclerotinia stem rot of canola-the influence of inoculum variation over the flowering period and canopy density. Phytopathol. 83:682–689. doi:https://doi.org/10.1094/Phyto-83-682.
- USDA. 2021. https://www.fas.usda.gov/data/oilseeds-world-markets-and-trade
- Ueno H, Matsumoto E, Aruga D, Kitagawa S, Matsumura H, Hayashida N. 2012. Molecular characterization of the CRa gene conferring clubroot resistance in Brassica rapa. Plant Mol Biol. 80:621–629.
- Uloth MB, You MP, Finnegan PM, Banga SS, Banga SK, Sandhu PS, Yi H, Salisbury P, Barbetti M. 2013. New sources of resistance to Sclerotinia sclerotiorum for crucifer crops. Field Crops Res. 154:40–52. doi:https://doi.org/10.1016/j.fcr.2013.07.013.
- Uloth M, You MP, Finnegan PM, Banga SS, Yi H, Barbetti MJ. 2014. Seedling Resistance to Sclerotinia selerotiorum as Expressed Across Diverse Cruciferous Species. Plant Dis. 98(2):184–190. doi:https://doi.org/10.1094/PDIS-06-13-0612-RE.
- Van Berkum NL, Lieberman-Aiden E, Williams L, Imakaev M, Gnirke A, Mirny LA, Dekker J, Lander ES. 2010. Hi-C: A method to study the three-dimensional architecture of genomes. J Vis Exp. 6:1869.
- Van de Wouw AP, Cozijnsen AJ, Hane JK, Brunner PC, McDonald BA, Oliver RP, Howlett BJ. 2010. Evolution of linked avirulence effectors in Leptosphaeria maculans is affected by genomic environment and exposure to resistance genes in host plants. PLoS Pathog. 6(11):e1001180. doi:https://doi.org/10.1371/journal.ppat.1001180.
- Van De Wouw AP, Elliott VL, Chang S, López-Ruiz FJ, Marcroft SJ, Idnurm A, Raman H. 2017. Identification of isolates of the plant pathogen Leptosphaeria maculans with resistance to the triazole fungicide fluquinconazole using a novel in planta assay. PLoS ONE. 12(11):11. doi:https://doi.org/10.1371/journal.pone.0188106.
- Van de Wouw AP, Elliott VL, Ware A, Lindbeck K, Howlett BJ, Marcroft SJ. 2016a. Infection of canola pods by Leptosphaeria maculans and subsequent seed contamination. Eur J Plant Pathol. 145:687–695.
- Van de Wouw AP, Howlett BJ. 2020. Advances in understanding the Leptosphaeria maculans - Brassica pathosystem and their impact on disease management. Can J Plant Pathol. 42(2):149–163. doi:https://doi.org/10.1080/07060661.2019.1643788.
- Van de Wouw AP, Lowe RGT, Elliott CE, Dubois DJ, Howlett BJ. 2014. An avirulence gene, AvrLmJ1, from the blackleg fungus, Leptosphaeria maculans, confers avirulence to Brassica juncea cultivars. Mol Plant Pathol. 15(5):523–530. doi:https://doi.org/10.1111/mpp.12105.
- Van de Wouw AP, Marcroft SJ, Barbetti MJ, Hua L, Salisbury PA, Gout L, Rouxel T, Howlett BJ, Balesdent MH. 2009. Dual control of avirulence in Leptosphaeria maculans towards a Brassica napus cultivar with ‘sylvestris-derived’ resistance suggests involvement of two resistance genes. Plant Pathol. 58(2):305–313. doi:https://doi.org/10.1111/j.1365-3059.2008.01982.x.
- Van De Wouw AP, Marcroft SJ, Howlett BJ. 2016b. Blackleg disease of canola in Australia. Crop Pasture Sci. 67(4):273–283. doi:https://doi.org/10.1071/CP15221.
- Vanterpool TC. 1961. Rape diseases in Saskatchewan in 1961. Can Plant Dis Surv. 41:372–373.
- Veronese P, Narasimhan ML, Stevenson RA, Zhu J-K, Weller SC, Subbarao KV, Bressan RA. 2003. Identification of a locus controlling Verticillium disease symptom response in Arabidopsis thaliana. Plant J. 35(5):574–587. doi:https://doi.org/10.1046/j.1365-313X.2003.01830.x.
- Voorrips RE. 1995. Plasmodiophora brassicae: aspects of pathogenesis and resistance in Brassica oleracea. Euphytica. 83(2):139–146. doi:https://doi.org/10.1007/BF01678041.
- Wallenhammar A-C. 1996. Prevalence of Plasmodiophora brassicae in a spring oilseed rape growing area in central Sweden and factors influencing soil infestation levels. Plant Pathol. 45(4):710–719. doi:https://doi.org/10.1046/j.1365-3059.1996.d01-173.x.
- Wallenhammar AC, Johnsson L, Gerhardson B. 2000. Agronomic performance of partly clubroot-resistant spring oilseed turnip rape lines. J Phytopathol. 148(7–8):495–499. doi:https://doi.org/10.1046/j.1439-0434.2000.00536.x.
- Wang L, Liu Y, Ding YJ, Wang Y, Wan HF, Mei JQ, Qian W. 2015. Advances in Sclerotinia stem rot of rapeseed. J Northwest A and F Univ (Nat Sci Ed). 43:85–93.
- Wang Y, Strelkov SE, Hwang S-F, Beres B. 2020. Yield losses in canola in response to blackleg disease. Can J Plant Sci. 100(5):1–21. doi:https://doi.org/10.1139/cjps-2019-0259.
- Wei L, Jian H, Lu K, Filardo F, Yin N, Liu L, Qu C, Li W, Du H, Li J. 2016. Genome-wide association analysis and differential expression analysis of resistance to Sclerotinia stem rot in Brassica napus. Plant Biotechnol J. 14(6):1368–1380. doi:https://doi.org/10.1111/pbi.12501.
- West JS, Kharbanda PD, Barbetti MJ, Fitt BDL. 2001. Epidemiology and management of Leptosphaeria maculans (phoma stem canker) on oilseed rape in Australia, Canada and Europe. Plant Pathol. 50(1):10–27. doi:https://doi.org/10.1046/j.1365-3059.2001.00546.x.
- Williams PH. 1966. A system for the determination of races of Plasmodiophora brassicae that infect cabbage and rutabaga. Phytopathol. 56:624–626.
- Williams W, Fitt F. 1999. Differentiating A and B groups of Leptosphaeria maculans, causal agent of stem canker (blackleg) of oilseed rape. Plant Pathol. 48(2):161–175. doi:https://doi.org/10.1046/j.1365-3059.1999.00333.x.
- Winter M, Koopmann B. 2016. Race spectra of Leptosphaeria maculans, the causal agent of blackleg disease of oilseed rape, in different geographic regions in northern Germany. Eur J Plant Pathol. 145(3):629–641. doi:https://doi.org/10.1007/s10658-016-0932-8.
- Wu J, Cai GQ, Tu JY, Li L, Liu S, Luo X, Zhou L, Fan C, Zhou Y, Zhang J. 2013. Identification of QTLs for resistance to sclerotinia stem rot and BnaC.IGMT5.a as a candidate gene of the major resistant QTL SRC6 in Brassica napus. PLoS ONE. 8(7):e67740. doi:https://doi.org/10.1371/journal.pone.0067740.
- Wu J, Li F, Xu K, Gao G, Chen B, Yan G, Wang N, Qiao J, Li J, Li H, et al. 2014. Assessing and broadening genetic diversity of a rapeseed germplasm collection. Breed Sci. 64(4):321–330. doi:https://doi.org/10.1270/jsbbs.64.321
- Wu J, Zhao Q, Liu S, Shahid M, Lan L, Cai G, Zhang C, Fan C, Wang Y, Zhou Y. 2016. Genome-wide association study identifies new loci for resistance to Sclerotinia stem rot in Brassica napus. Front Plant Sci. 7:1418. doi:https://doi.org/10.3389/fpls.2016.01418.
- Wytinck N, Sullivan DS, Biggar KT, Crisostomo L, Pelka P, Belmonte MF, Whyard S. 2020. Clathrin mediated endocytosis is involved in the uptake of exogenous double-stranded RNA in the white mold phytopathogen Sclerotinia sclerotiorum. Sci Rep. 10(1):12773. doi:https://doi.org/10.1038/s41598-020-69771-9.
- Xue S, Cao T, Howard RJ, Hwang SF, Strelkov SE. 2008. Isolation and Variation in Virulence of Single-Spore Isolates of Plasmodiophora brassicae from Canada. Plant Dis. 92(3):456–462. doi:https://doi.org/10.1094/PDIS-92-3-0456.
- Yadeta KA, Hanemian M, Smit P, Hiemstra JA, Pereira A, Marco Y, Thomma BPHJ. 2011. The Arabidopsis thaliana DNA-Binding Protein AHL19 Mediates Verticillium Wilt Resistance. Mol Plant-Microbe Interact. 24(12):1582–1591. doi:https://doi.org/10.1094/MPMI-04-11-0090.
- Yadeta KA, Valkenburg D-J, Hanemian M, Marco Y, Thomma BPHJ, van Damme EJM. 2014. The Brassicaceae-specific EWR1 gene provides resistance to vascular wilt pathogens. PLoS ONE. 9(2):e88230. doi:https://doi.org/10.1371/journal.pone.0088230.
- Yang H 2018. Identification of candidate genes for blackleg resistance in the new brassica juncea canola. PhD Thesis, The University of Queensland, Brisbane, Australia.
- Young CS, Werner CP. 2012. Infection routes for Sclerotinia sclerotiorum in apetalous and fully petalled winter oilseed rape. Plant Pathol. 61(4):730–738. doi:https://doi.org/10.1111/j.1365-3059.2011.02556.x.
- Yu F, Gugel RK, Kutcher HR, Peng G, and Rimmer SR. 2012. Identification and mapping of a novel blackleg resistance locus LepR4 in the progenies from Brassica napus × B. rapa subsp. sylvestris. Theor Appl Genet 126:307–315. doi:https://doi.org/10.1007/s00122-012-1919-2
- Yu F, Gugel RK, Kutcher HR, Peng G, Rimmer SR. 2013. Identification and mapping of a novel blackleg resistance locus LepR4 in the progenies from Brassica napus × B. rapa subsp. sylvestris. Theor Appl Genet. 126(2):307–315. doi:https://doi.org/10.1007/s00122-012-1919-2.
- Yu F, Lydiate DJ, Rimmer SR. 2005. Identification of two novel genes for blackleg resistance in Brassica napus. Theor Appl Genet. 110(5):969–979. doi:https://doi.org/10.1007/s00122-004-1919-y.
- Yu F, Zhang X, Peng G, Falk KC, Strelko SE, and Gossen BD. 2017. Genotyping-by-sequencing reveals three QTL for clubroot resistance to six pathotypes of Plasmodiophora brassicae in Brassica rapa. Sci Rep. 7(1):4516. doi:https://doi.org/10.1038/s41598-017-04903-2.
- Yu X, Feng B, He P, Shan L. 2017b. From chaos to harmony: responses and signaling upon microbial pattern recognition. Annu Rev Phytopathol. 55(1):109–137. doi:https://doi.org/10.1146/annurev-phyto-080516-035649.
- Zeise K, Tiedemann AV. 2002. Host specialization among vegetative compatibility groups of Verticillium dahliae in relation to Verticillium longisporum. J Phytopathol. 150(3):112–119. doi:https://doi.org/10.1046/j.1439-0434.2002.00730.x.
- Zhang F, Huang J, Tang M, Cheng X, Liu Y, Tong C, Yu J, Sadia T, Dong C, Liu L, et al. 2019. Syntenic quantitative trait loci and genomic divergence for Sclerotinia resistance and flowering time in Brassica napus. J Integr Plant Biol. 61(1):75–88. doi:https://doi.org/10.1111/jipb.12754.
- Zhang H, Feng J, Hwang S-F, Strelkov SE, Falak I, Huang X, Sun R. 2016a. Mapping of clubroot (Plasmodiophora brassicae) resistance in canola (Brassica napus). Plant Pathol. 65(3):435–440. doi:https://doi.org/10.1111/ppa.12422.
- Zhang X, Fernando WGD. 2018. Insights into fighting against blackleg disease of Brassica napus in Canada. Crop Pasture Sci. 69(1):40–47. doi:https://doi.org/10.1071/CP16401.
- Zhang X, Peng G, Kutcher HR, Balesdent M-H, Delourme R, Fernando WGD. 2016b. Breakdown of Rlm3 resistance in the Brassica napus–Leptosphaeria maculans pathosystem in western Canada. Eur J Plant Pathol. 145(3):659–674. doi:https://doi.org/10.1007/s10658-015-0819-0.
- Zhang Y, Thomas W, Bayer PE, Edwards D, Batley J. 2020. Frontiers in dissecting and managing Brassica diseases: from reference-based RGA Candidate identification to building Pan-RGAomes. Int J Mol Sci. 21(23):8964. doi:https://doi.org/10.3390/ijms21238964.
- Zhao J, Peltier A, Meng J, Osborn T, Grau C. 2004. Evaluation of Sclerotinia Stem Rot Resistance in Oilseed Brassica napus Using a Petiole Inoculation Technique Under Greenhouse Conditions. Plant Dis. 88(9):1033–1039. doi:https://doi.org/10.1094/PDIS.2004.88.9.1033.
- Zhao JW, Meng JL. 2003. Genetic analysis of loci associated with partial resistance to Sclerotinia sclerotiorum in rapeseed (Brassica napus L.). Theor Appl Genet. 106:759–764.
- Zhao Y, Wang ML. 2004. Inheritance and agronomic performance of an apetalous flower mutant in Brassica napus L. Euphytica. 137(3):381–386. doi:https://doi.org/10.1023/B:EUPH.0000040522.37048.7a.
- Zheng X, Koopmann B, Ulber B, von Tiedemann A. 2020. A global survey on diseases and pests in oilseed rape—current challenges and innovative strategies of control. Front Agron. 2:590908. doi:https://doi.org/10.3389/fagro.2020.590908
- Zhou L, Hu Q, Johansson A, Dixelius C. 2006. Verticillium longisporum and V. dahliae: infection and disease in Brassica napus. Plant Pathol. 55(1):137–144. doi:https://doi.org/10.1111/j.1365-3059.2005.01311.x.
- Zou Z, Bisht V, Fernando WGD. 2020. Identification and characterization of Verticillium longisporum lineage A1/D1 from Brassica Crops in Manitoba, Canada. Int J Mol Sci. 21(10):3499. doi:https://doi.org/10.3390/ijms21103499.