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来自印度东北部的Thutho牛的遗传多样性和差异化使用微观卫星标记器
Rekha Sharma1, Sonika Ahlawat1, R K Pundir1
1ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana, India.
Animal biotechnology
|June 10, 2023
概括
印度的Thutho牛品种表现出独特的遗传特征,但遗传多样性较低. 立即科学管理和育种计划对于其保护和改善至关重要.
科学领域:
- 动物遗传学和动物基因组学
- 保护生物学 保护生物学
- 畜牧生物多样性 畜牧生物多样性
背景情况:
- 全球牛品种面临灭绝,需要遗传变异性数据来保护.
- 来自东北地区的Thutho是一种新注册的印度牛品种,需要紧急进行遗传评估.
- 了解遗传多样性对于明智的保护决策和品种管理至关重要.
研究的目的:
- 为了评估Thutho牛群中的遗传多样性.
- 为了区分Thutho牛与Siri (印度东北部) 和Bachaur (邻近地区) 品种.
- 建立独特的遗传特征,并为Thutho牛的保护策略提供信息.
主要方法:
- 使用了粮农组织推的25种高度多态的微卫星标记物.
- 分析了遗传多样性参数,包括等位基因数,异构性和哈迪-韦恩伯格平衡.
- 采用遗传距离,遗传学分析,人口分配和贝叶斯的分化方法.
主要成果:
- 在25个位点中检测到253个等位体,平均观察到的异构性为0.67.
- 观察到的异合性低于预期,表明异合体缺乏 (FIS = 0.097) 和偏离哈迪-韦恩伯格平衡.
- 证实了Thutho牛的独特遗传身份,与Siri和Bachaur不同,没有证据表明过去的瓶.
结论:
- 图索牛具有独特的遗传特征,但在研究的种群中,其遗传多样性最低.
- 立即的科学管理和有针对性的繁殖计划对于保护这种本土牛生殖质是必不可少的.
- 存在足够的遗传变异来支持管理,改进和保护的育种计划.
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