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Updated: Jun 11, 2025

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用单核酸多态化 (SNP) 芯片分析江山黑猪的遗传多样性和遗传结构
Mingfei Zhu1,2, Litong Wang2, Zhibo Ma3
1Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
Animals : an open access journal from MDPI
|September 28, 2024
概括
江山黑猪因数量减少而面临灭绝的危险. 遗传分析显示,有效种群规模小,近亲繁殖率高,突出显示,这个有价值的中国品种迫切需要保护.
科学领域:
- 动物遗传学动物遗传学
- 保护生物学 保护生物学
- 畜牧养殖 畜牧养殖 畜牧养殖
背景情况:
- 江山黑猪是一种中国本土的品种,因其肉质和适应性而受到重视.
- 由于引入的品种和非洲猪瘟,人口下降威胁着江山黑猪.
研究的目的:
- 评估江山黑猪的遗传多样性和种群结构.
- 为这个临灭绝的品种提供保护和繁殖策略的见解.
主要方法:
- 整个基因组单核酸多态 (SNP) 检测使用中新-1猪繁殖阵列PLUS芯片.
- 对118头猪的遗传多样性,家族遗传关系,近亲繁殖系数和血统结构的分析.
- 利用专门的软件进行全面的遗传分析.
主要成果:
- 实际人口规模 (Ne) 估计为4.9,表明人口很小,可能很脆弱.
- 在保护群体中,平均内生系数为0.253.
- 基因分析揭示了雄性猪中四个不同的家族群体,并确定了两个与远距离相关的雌性猪.
结论:
- 江山黑猪种群的遗传多样性较低,内生繁殖率很高.
- 这些发现强调了有针对性的保护和繁殖计划的急需.
- 这项研究为保护江山黑猪的未来提供了遗传基础.
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