Virulence Characterization of Puccinia striiformis f. sp. tritici in China in 2020 Using Wheat Yr Single-Gene Lines
文献类型： 外文期刊
作者： Huang, Jie 1 ; Zhang, Xingzong 1 ; Tan, Wenjing 1 ; Wu, Yi 1 ; Xu, Hai 1 ; Wang, Shuwaner 1 ; Mehmood, Sajid 4 ; Zhou, Xinli 1 ; Yang, Suizhuang 1 ; Wang, Meinan 5 ; Chen, Xianming 5 ; Chen, Wanquan 3 ; Liu, Taiguo 3 ; Li, Xin 1 ; Xia, Chongjing 1 ;
作者机构： 1.Southwest Univ Sci & Technol, Sch Life Sci & Engn, Mianyang 621010, Peoples R China
2.Mianyang Bur Agr & Rural Affairs, Anzhou Dist Bur Agr & Rural Affairs, Mianyang 622650, Peoples R China
3.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China
4.Pir Mehr Ali Shah Arid Agr Univ, Fac Agr, Dept Plant Pathol, Rawalpindi 46000, Pakistan
5.Washington State Univ, Dept Plant Pathol, Pullman, WA 99164 USA
6.Agr Res Serv, Wheat Hlth Genet & Qual Res Unit, USDA, Pullman, WA 99164 USA
关键词：
期刊名称：JOURNAL OF FUNGI （ 影响因子：4.0； 五年影响因子：4.5 ）
ISSN：
年卷期： 2025 年 11 卷 6 期
页码：
收录情况： SCI
摘要： Wheat stripe (yellow) rust, caused by the fungus Puccinia striiformis f. sp. tritici (Pst), is one of the most threatening wheat diseases worldwide. Monitoring the virulence of Pst population is essential for managing wheat stripe rust. In this study, 18 wheat Yr single-gene lines were used to identify the virulence patterns of 67 isolates collected from 13 provinces in China in 2020, from which 33 Pst races were identified. The frequency of virulence to different Yr genes varied from 1.49% to 97.01%, with 4.48% to Yr1, 26.87% to Yr6, 11.94% to Yr7, 95.52% to Yr8, 19.40% to Yr9, 11.94% to Yr17, 2.99% to Yr24, 35.82% to Yr27, 38.81% to Yr43, 97.01% to Yr44, 8.96% to YrSP, 1.49% to Yr85, 95.52% to YrExp2, and 7.46% to Yr76. None of the isolates were virulent to Yr5, Yr10, Yr15, and Yr32. Among the 33 races, PstCN-062 (with virulence to Yr8, Yr44, and YrExp2) and PstCN-001 (with virulence to Yr8, Yr43, Yr44, and YrExp2) were the prevalent races, with frequencies of 28.36% and 11.94%, respectively. These results provide valuable information for breeding resistant wheat cultivars for controlling stripe rust.
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