Molecular Insights into the Reproductive Patterns and Genetic Structure of Wheat Stripe Rust in Ili, Xinjiang
文献类型： 外文期刊
作者： Lai, Hanlin 1 ; Li, Yue 2 ; Deng, Feifei 1 ; Yang, Hong 1 ; Li, Jin 1 ; Chen, Jianghua 1 ; Sun, Jingjing 1 ; Li, Guangkuo 1 ; Fernando, W. G. Dilantha 3 ; Gao, Haifeng 1 ;
作者机构： 1.Xinjiang Acad Agr Sci, Inst Plant Protect, Key Lab Integrated Pest Management Crop Northweste, Minist Agr & Rural Affairs, Urumqi 830091, Peoples R China
2.Xinjiang Agr Univ, Coll Life Sci, Urumqi 830001, Peoples R China
3.Univ Manitoba, Dept Plant Sci, Winnipeg, MB R3T 2N2, Canada
关键词： wheat stripe rust; simple sequence repeats; genetic structure; sexual reproductive
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）
ISSN： 1661-6596
年卷期： 2024 年 25 卷 22 期
页码：
收录情况： SCI
摘要： Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is a globally significant fungal disease that seriously threatens wheat yield, particularly in China. This study investigates the genetic structure and reproductive patterns of Pst populations in Ili, Xinjiang, using 12 pairs of Simple Sequence Repeat (SSR) molecular markers. Analyses of 79 Pst isolates from either spring or winter wheat areas in Ili revealed three primary genetic clusters, indicating notable differences between populations associated with spring and winter wheat. The STRUCTURE results, complemented by UPGMA and PCoA analyses, highlight significant genetic diversity within these populations, with evidence of genetic recombination and sexual reproduction in certain areas. Pst populations in Ili exhibit a mixed mode of reproduction, predominantly sexual in Qapqal and Xinyuan D and primarily asexual within the spring wheat populations. The gene flow analysis underscores extensive inter-population communication, which facilitates the spread and adaptation of the pathogen across diverse wheat-growing environments. This study marks the first documentation of sexual reproduction in Pst within Xinjiang, providing new insights into its spread and genetic variation. These findings suggest that sexual reproduction may play a role in the regional adaptation and evolution of Pst, impacting future management strategies for wheat stripe rust in Xinjiang and potentially in broader Central Asian contexts.
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