Huang Jie, Zhang Xingzong, Tan Wenjing, Wu Yi, Xu Hai, Wang Shuwaner, Mehmood Sajid, Zhou Xinli, Yang Suizhuang, Wang Meinan, Chen Xianming, Chen Wanquan, Liu Taiguo, Li Xin, Xia Chongjing
School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China.
Anzhou District Bureau of Agriculture and Rural Affairs, Mianyang Bureau of Agriculture and Rural Affairs, Mianyang 622650, China.
J Fungi (Basel). 2025 Jun 12;11(6):447. doi: 10.3390/jof11060447.
Wheat stripe (yellow) rust, caused by the fungus f. sp. (), is one of the most threatening wheat diseases worldwide. Monitoring the virulence of population is essential for managing wheat stripe rust. In this study, 18 wheat single-gene lines were used to identify the virulence patterns of 67 isolates collected from 13 provinces in China in 2020, from which 33 races were identified. The frequency of virulence to different genes varied from 1.49% to 97.01%, with 4.48% to , 26.87% to , 11.94% to , 95.52% to , 19.40% to , 11.94% to , 2.99% to , 35.82% to , 38.81% to , 97.01% to , 8.96% to , 1.49% to , 95.52% to , and 7.46% to . None of the isolates were virulent to , , , and . Among the 33 races, PstCN-062 (with virulence to , , and ) and PstCN-001 (with virulence to , , , and ) 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.
由真菌小麦条锈菌（Puccinia striiformis f. sp. tritici）引起的小麦条锈病（又称黄斑锈病）是全球最具威胁性的小麦病害之一。监测小麦条锈菌群体的毒力对于防治小麦条锈病至关重要。在本研究中，利用18个小麦单基因系对2020年从中国13个省份采集的67个分离株的毒力模式进行了鉴定，共鉴定出33个生理小种。对不同基因的毒力频率在1.49%至97.01%之间，其中对Yr1的毒力频率为4.48%至[具体数值缺失]，对Yr2的毒力频率为26.87%至[具体数值缺失]，对Yr3的毒力频率为11.94%至[具体数值缺失]，对Yr4的毒力频率为95.52%至[具体数值缺失]，对Yr5的毒力频率为19.40%至[具体数值缺失]，对Yr6的毒力频率为11.94%至[具体数值缺失]，对Yr7的毒力频率为2.99%至[具体数值缺失]，对Yr8的毒力频率为35.82%至[具体数值缺失]，对Yr9的毒力频率为38.81%至[具体数值缺失]，对Yr10的毒力频率为97.01%至[具体数值缺失]，对Yr11的毒力频率为8.96%至[具体数值缺失]，对Yr12的毒力频率为1.49%至[具体数值缺失]，对Yr15的毒力频率为95.52%至[具体数值缺失]，对Yr16的毒力频率为7.46%至[具体数值缺失]。没有分离株对Yr17、Yr18、Yr21和Yr24有毒力。在这33个生理小种中，PstCN - 062（对Yr2、Yr3和Yr4有毒力）和PstCN - 001（对Yr2、Yr3、Yr4和Yr6有毒力）是优势小种，频率分别为28.36%和11.94%。这些结果为培育抗条锈病小麦品种提供了有价值的信息。
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