Diaporthe humulicola 东北美地区的种群的多样性和结构
Ross J Hatlen1, J Alejandro Rojas2, Timothy D Miles3
1Michigan State University, East Lansing, Michigan, United States; hatlenro@msu.edu.
Phytopathology
|December 30, 2025
概括
蜂病原体Diaporthe humulicola的种群遗传学揭示了三个不同的群体. 明尼苏达州的分离物表现出高度的分化,影响了Humulus lupulus生产的疾病管理策略.
科学领域:
- 农业科学 农业科学
- 菌类学 菌类学是指菌类学.
- 遗传学 是一个遗传学.
背景情况:
- 蜂 (Humulus lupulus) 的生产在美国东部正在增长.
- 新兴的真菌病原体需要区域理解.
- 迪亚波特 (Diaporthe humulicola) 在蜂中引起光环病.
研究的目的:
- 第一次对Diaporthe humulicola的种群遗传学分析.
- 研究D. humulicola的遗传多样性和结构.
- 了解疾病管理的区域差异化.
主要方法:
- 来自密歇根州,纽约州,明尼苏达州和加拿大的71个D. humulicola分离物的测序.
- 使用基因组分析工具包分析单核酸多态 (SNP).
- 通过结构,PCA和DA-PC分析确定的人口结构.
主要成果:
- 发现了三种不同的遗传集群.
- 密歇根州和加拿大分离物聚集在一起,与大多数明尼苏达州分离物不同.
- 明尼苏达州的分离物体呈现出高种群差异化,低核酸多样性和高固定指数.
- 在61.9%的分离物中存在Mat1-2-1交配类型.
- 检测到重组信号,在密歇根州和加拿大人口中更高.
结论:
- 在D. humulicola种群中存在显著的区域遗传差异化.
- 明尼苏达州的分离物体代表了一个基因上独特的群体.
- 这些发现对麻病管理和繁殖计划有影响.
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