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基于超级基因型测序的八种山羊品种的种群结构分析

Xiangzhen Gou¹, Keyan Ma², Junxiang Yang³

¹Department of Bioengineering, LinXia Modern Vocational College, Linxia 731100, China.

|November 12, 2025

概括

这项研究使用超级-GBS测序评估了8种中国本土山羊品种的遗传多样性. 研究结果揭示了种群结构,确定了特征和适应性的基因,并指导了宝贵的山羊遗传资源的保护工作.

科学领域:

动物遗传学动物遗传学
基因组学就是基因组学.
保护生物学保护生物学

背景情况:

中国土著山羊品种因异国品种的引入和杂交而面临遗传结构衰退.
评估遗传多样性和人口结构对于保护这些独特资源至关重要.

研究的目的:

评估八种中国本土山羊品种的遗传多样性和种群结构.
识别与生产特征和环境适应相关的候选基因.
为保护和可持续利用山羊遗传资源提供见解.

主要方法:

在8个山羊品种的211个个体上使用了超级GBS测序技术.
进行了人口结构分析,对联FST计算,并进行了同卵性 (ROH) 分析.
进行了选择特征分析,以确定与生产特征和适应相关的候选基因.

主要成果:

齐武林黑山羊 (ZWL) 的遗传多样性最高,而大祖黑山羊 (DZH) 的遗传多样性最低.
人口结构分析揭示了三种不同的类型,其中DZH形成了一个独立的血统.
选择性扫描确定了与喀什米尔特征相关的252个基因和参与适应干旱和亚热带环境的372个基因.

结论:

人工选择和环境适应显著塑造了山羊基因组架构.
保护战略应优先考虑多样性下降的品种,并实施受控育种,以减轻内在繁殖.
这些发现支持保护农业生物多样性和可持续利用土著山羊种群.

关键词:

喀什米尔山羊的山羊是什么意思遗传多样性遗传多样性人口结构人口结构这是一个超级GBS系统.

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