<i>Puccinia striiformis</i> f. sp. <i>tritici</i> Exhibited a Significant Change in Virulence and Race Frequency in Xinjiang, China.

ABSTRACT: Xinjiang is an important region due to its unique epidemic characteristics of wheat stripe rust disease caused by Puccinia striiformis f. sp. tritici. Some previous studies on race identification were conducted in this region, but it is still unclear how temporal changes affect the dynamics, diversity, and virulence characteristics of Pst races in Xinjiang. To gain a better understanding, we compared the race data from spring and winter wheat crops of 2022 with that of 2021. Our results showed a significant change in virulence frequency in 2022. Vr10, Vr13, and Vr19 exhibited an increasing trend, with a frequency of ≥18%, while the maximum decline was observed in Vr1, Vr3, and Vr9, with a frequency of ≤-25%. It was found that <

SUBMITTER: Yang H 

PROVIDER: S-EPMC11676220 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature