The Changing Virulence of Stripe Rust in Canada from 1984 to 2017

被引:11
作者
Ghanbarnia, Kaveh [1 ]
Gourlie, Ryan [1 ]
Amundsen, Eric [1 ]
Aboukhaddour, Reem [1 ]
机构
[1] Agr & Agri Food Canada, Lethbridge Res & Dev Ctr, Lethbridge, AB T1J 4B1, Canada
关键词
Canada; Puccinia striiformis f. sp. tritici; stripe rust; USA; virulence; wheat; F-SP TRITICI; PUCCINIA-STRIIFORMIS; UNITED-STATES; 1ST REPORT; WHEAT; RESISTANCE; RACES; PATHOGEN; IDENTIFICATION; SASKATCHEWAN;
D O I
10.1094/PHYTO-10-20-0469-R
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Stripe rust, caused by the fungal pathogen Puccinia striiformis f. sp. tritici, is an important wheat disease worldwide. In this study, the P. striiformis f. sp. tritici population in Canada, representing a time period from1984 to 2017, was analyzed for virulence diversity and geographical distribution. Virulence of 140 P. striiformis f. sp. tritici isolates was evaluated on 17 near-isogenic wheat lines in the `Avocet S' background, each containing a single resistance gene along with an 18th line `Tyee'. Seedlings were inoculated with a urediniospore/talc mixture and infection types were evaluated on a scale of 0 to 9. In total, 89 races were identified with various combinations of defeated Yr genes. Clear changes in pathogen virulence have been observed through time that are confirmed by clustering algorithms. The results showed that the tested P. striiformis f. sp. tritici isolates remained avirulent on Yr1, Yr5, and Yr15, and have very low frequency of virulence on Yr76, but had high frequencies of virulence on Yr6, Yr7, Yr8, Yr9, Yr17, Yr43, Yr44, YrTr1, and YrExp2. P. striiformis f. sp. tritici virulence spiked on Yr7, Yr8, and Yr9 for the first time in 2000, and on Yr10 and Yr27 in 2010. Overall, the predominant races in Canada were very similar to those reported in the United States (PSTv-37, PSTv-41, and PSTv-52), which indicates long-distance migration of P. striiformis f. sp. tritici from the United States to Canada. Sixty-four races had unique virulence combinations that had not been previously reported in the United States, which suggested that evolution of virulence/avirulence for host resistance by mutation at local scale, is possible. Analysis of diversity between Canadian isolates and races from the United States since 2010 showed that the P. striiformis f. sp. tritici population in western Canada is similar to that in the western states of the United States, and that the population in eastern Canada is similar to the eastern and/or central regions of the United States, supporting the hypothesis that specific P. striiformis f. sp. tritici populations in North America travel through different wind trajectories.
引用
收藏
页码:1840 / 1850
页数:11
相关论文
共 50 条
  • [31] Comparative virulence phenotypes and molecular genotypes of Puccinia striiformis f. sp tritici, the wheat stripe rust pathogen in China and the United States
    Zhan, Gangming
    Chen, Xianming
    Kang, Zhensheng
    Huang, Lili
    Wang, Meinan
    Wan, Anmin
    Cheng, Peng
    Cao, Shiqin
    Jin, Shelin
    FUNGAL BIOLOGY, 2012, 116 (06) : 643 - 653
  • [32] First report of stripe rust (Puccinia striiformis f. sp tritici) on wheat in Quebec, Canada
    Rioux, Sylvie
    Mimee, Benjamin
    Gagnon, Annie-Eve
    Hambleton, Sarah
    PHYTOPROTECTION, 2015, 95 (01): : 7 - 9
  • [33] Molecular Characterization of Wheat Stripe Rust Pathogen (Puccinia striiformis f. sp. tritici) Collections from Nine Countries
    Bai, Qing
    Wan, Anmin
    Wang, Meinan
    See, Deven R.
    Chen, Xianming
    INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 2021, 22 (17)
  • [34] Genetics of adult plant stripe rust resistance in CSP44, a selection from Australian wheat
    Khanna, R
    Bansal, UK
    Saini, RG
    JOURNAL OF GENETICS, 2005, 84 (03) : 337 - 340
  • [35] A new stripe rust resistance gene transferred from Thinopyrum intermedium to hexaploid wheat (Triticum aestivum)
    Luo, Pei-Gao
    Hu, Xue-Yun
    Chang, Zhi-Jian
    Zhang, Min
    Zhang, Huai-Qiong
    Ren, Zheng-Long
    PHYTOPROTECTION, 2009, 90 (02): : 57 - 63
  • [36] Disomic chromosome addition from Thinopyrum intermedium to bread wheat appears to confer stripe rust resistance
    Nie, Linman
    Yang, Yuening
    Zhang, Jun
    Fu, Tihua
    EUPHYTICA, 2019, 215 (03)
  • [37] Small RNAs from the wheat stripe rust fungus (Puccinia striiformis f.sp. tritici)
    Nicholas A. Mueth
    Sowmya R. Ramachandran
    Scot H. Hulbert
    BMC Genomics, 16
  • [38] Changing the Game: Using Integrative Genomics to Probe Virulence Mechanisms of the Stem Rust Pathogen Puccinia graminis f. sp tritici
    Figueroa, Melania
    Upadhyaya, Narayana M.
    Sperschneider, Jana
    Park, Robert F.
    Szabo, Les J.
    Steffenson, Brian
    Ellis, Jeff G.
    Dodds, Peter N.
    FRONTIERS IN PLANT SCIENCE, 2016, 7
  • [39] Novel bacterial endophytes isolated from winter wheat plants as biocontrol agent against stripe rust of wheat
    Pang, Fahu
    Wang, Tan
    Zhao, Chenchen
    Tao, Aili
    Yu, Ziwei
    Huang, Siliang
    Yu, Gongming
    BIOCONTROL, 2016, 61 (02) : 207 - 219
  • [40] Occurrence of new races and virulence changes of the wheat stripe rust pathogen (Puccinia striiformisf. sp.tritici) in Egypt
    Shahin, Atef A.
    ARCHIVES OF PHYTOPATHOLOGY AND PLANT PROTECTION, 2020, 53 (11-12) : 552 - 569