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病毒性 Puccinia striiformis f. sp. 的表征 tritici 在中国使用中文和Yr 单基因差异

Aihong Zhou¹, Jie Wang¹, Xianming Chen²

¹State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China.

|September 18, 2023

概括

小麦条纹生,由Puccinia striiformis (Pst) 引起,显示出高毒性. 在中国使用差异品种识别了新的Pst种族, Yr5和Yr15基因被证明对抗性繁殖有效.

科学领域:

植物病理学植物病理学
农业科学农业科学
遗传学是一个遗传学.

背景情况:

条纹生,是由Puccinia striiformis f. sp. 引起的 (Pst),是全球主要的小麦疾病.
准确识别Pst种族对于开发耐药小麦品种和有效的疾病管理策略至关重要.

研究的目的:

为了描述Puccinia striiformis f. sp. 的特征. 在2021年期间,中国的tritici (Pst) 人口.
评估现有的小麦差异的有效性,并识别潜在的抗性基因对普遍存在的Pst种族.

主要方法:

使用中国小麦品种差异和YR单基因差异测试了来自中国的608个Pst分离物.
分析了Pst种群之间的毒性频率和遗传距离.
比较了两组差异的差异能力.

主要成果:

确定了使用中国差异的119个种族 (94个新种族) 和使用YR单基因差异的149个种族.
对许多差异物观察到高毒性频率 (>60%),但Yr5和Yr15显示出完全的耐药性.
一个基因差异显示出比中国群体更高的种族差异化能力.

结论:

中国的Pst种群多样化和不断发展,需要持续监测.
携带Yr5和Yr15基因的小麦差异对2021年Pst人口有效.
结果为Pst种群监测和指导中国的小麦耐药性育种计划提供了基础.

关键词:

普奇尼亚形虫 (Puccinia striiformis f. sp. f. sp.) 是一种形虫. 这里是triticici和tritici.种族识别种族识别毒性毒性是一种毒性.小麦条纹生的生.

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Single Nucleotide Polymorphisms-SNPs

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