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不同基因组区域的SSR变异以及对Armillaria gallica的进化和鉴定的影响

Shengnan Li¹, Jiao Xu¹, Yipu Hu¹

¹Guizhou University of Traditional Chinese Medicine, Guiyang, China.

|October 15, 2024

概括

这项研究分析了Armillaria gallica中的简单序列重复 (SSR),揭示了其基因区域内的显著遗传变异. 这些发现为这个重要的森林病原体的进化和种群结构提供了新的见解.

科学领域:

菌类学菌类学是指菌类学.
遗传学是一个遗传学.
森林病理学森林病理学

背景情况:

亚米拉利亚菌 spp. 是重要的森林病原体.
阿米拉里亚·加利卡 (Armillaria gallica) 与 Gastrodia elata 展现出独特的共生关系,这是一种传统的中医药.
关于Armillaria gallica的种群结构和变异的研究有限.

研究的目的:

分析Armillaria gallica中简单序列重复 (SSR) 的演变和变异.
评估14个A. gallica菌株的遗传多样性和种群结构.
为了比较三种Armillaria基因组 (A. gallica,A. cepistipes,A. ostoyae) 的SSR分布.

主要方法:

在A. gallica,A. cepistipes和A. ostoyae.中对SSR进行全基因组分析.
在A. gallica. 中识别和表征多态SSR标记物.
人口遗传分析,包括主要坐标分析 (PCoA) 和人口结构分析.

主要成果:

在跨基因区域中,SSR比内子和外子更丰富,在A. gallica的外子区域密度最低.
在A. gallica的基因区域中观察到显著的变异,确定了17个多态标记物.
种群结构分析将A. gallica菌株根据SSR基因型数据分为两个群体,与海拔和Gastrodia elata产区相关联.

结论:

在Armillaria gallica的基因区域内存在SSR的大量基因组特异变异.
这项研究为A. gallica.的进化和种群结构提供了新的见解.
这些发现可以为未来关于A. gallica.繁殖和管理的研究提供信息.

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