在猪品种中进行同志性初步调查
Yuqiang Liu1, Guangzhen Li1, Wondossen Ayalew1
1State Key Laboratory of Swine and Poultry Breeding Industry, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China.
Animals : an open access journal from MDPI
|April 12, 2025
概括
欧洲商业猪表现出比亚洲品种更高的近亲繁殖和选择,这是由于同胞性 (ROH) 的运行. 杂交减少了ROH,为养猪策略提供了洞察力.
科学领域:
- 基因组学就是基因组学.
- 动物育种 动物育种
- 人口遗传学 人口遗传学
背景情况:
- 同胞性运行 (ROH) 揭示了对人口历史,选择和近亲繁殖的见解.
- 全球ROH分布及其对养和养殖猪的影响需要进一步调查.
研究的目的:
- 为了描述全球猪的ROH模式.
- 了解ROH对猪化和养殖策略的影响.
主要方法:
- 分析了49个品种1203头猪的全基因组复序数据.
- 在欧洲商业品种和亚洲本土品种之间比较了ROH模式.
- 进行了ROH岛屿的功能分析.
主要成果:
- 欧洲商业猪的ROH分段比亚洲本土品种的ROH分段更长,更多,这表明人工选择更强,近亲繁殖更高.
- 杂交减少了ROH负担,更大的减少与更大的父母遗传差异有关.
- 亚洲和欧洲猪的明显的ROH岛屿反映了与生长,免疫力和繁殖相关的不同选择压力.
结论:
- 欧洲和亚洲猪种群之间的ROH模式显著不同,反映出不同的化和选择历史.
- 杂交可以减轻ROH负担,其好处受到父母遗传分歧的影响.
- 了解ROH岛屿为优化未来养猪战略和增强遗传多样性提供了关键的见解.
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