Puccinia striiformis f. sp. 这种植物的种类是什么? tritici 在中国新疆的病毒性和种族频率表现出显著的变化
Hong Yang1,2, Muhammad Awais3, Feifei Deng2
1College of Agriculture, Xinjiang Agricultural University, 311 Nongda East Road, Urumqi 830052, China.
Journal of fungi (Basel, Switzerland)
|December 27, 2024
概括
麦子条纹生 (Puccinia striiformis f. sp. 麦子条纹生 (Puccinia striiformis f. 新疆的毒性和种族多样性在2022年发生了显著的变化. 新的耐药基因和监测对于管理未来的小麦生流行病至关重要.
科学领域:
- 植物病理学 植物病理学
- 农业科学 农业科学
- 流行病学 流行病学
背景情况:
- 小麦条纹生,是由Puccinia striiformis f. sp. 引起的 三 (Pst),对新疆的小麦生产构成重大威胁.
- 之前对新疆PST种族的研究是有限的,缺乏对时间动态和毒性转移的洞察力.
- 了解Pst种群动态对于管理该地区的小麦条纹生至关重要.
研究的目的:
- 分析病毒毒性的时间变化,种族动态和新疆的Pst多样性.
- 为了比较2021年和2022年春季和冬季小麦作物的Pst比赛数据.
- 识别有效的耐药性基因并为疾病管理策略提供信息.
主要方法:
- 在2021年和2022年之间对Pst种族毒性频率的比较分析.
- 用春季和冬季小麦作物的孤立数据评估种族多样性.
- 确定主导和普遍存在的Pst种族及其人口趋势.
主要成果:
- 在2022年观察到毒性频率的显著变化,Vr10,Vr13,Vr19的增加和Vr1,Vr3,Vr9.9的减少.
- 小麦条纹抗基因 Yr5 和 Yr15 仍然有效地对抗新疆 Pst 种族.
- 种族多样性在2022年增加,CYR34变得普遍,LvG群被根除;新种族增加了34%.
结论:
- 新疆的PST种群表现出病毒性和多样性增加的时间变化.
- 普遍存在的种族的过度夏季和过度冬季行为得到证实.
- 引入新的耐药品种和强大的监测系统对于新疆未来的小麦条纹生管理至关重要.
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