您好，欢迎访问中国农业科学院 机构知识库！

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Genomic Characterization of Crossbred-Driven Adaptation in the Endangered Yangba Cattle of China

文献类型： 外文期刊

作者： Cai, Bao 1 ; Kang, Yandong 1 ; Ding, Ziqiang 1 ; Guo, Shaoke 1 ; Cao, Mengli 1 ; Hu, Liyan 1 ; Zhang, Ben 1 ; Wang, Xingdong 1 ; Pei, Jie 1 ; Ge, Qianyun 1 ; Xiong, Lin 1 ; Wu, Xiaoyun 1 ; Guo, Xian 1 ;

作者机构： 1.Chinese Acad Agr Sci, Lanzhou Inst Husb & Pharmaceut Sci, Key Lab Yak Breeding Gansu Prov, Lanzhou 730050, Peoples R China

2.Minist Agr & Rural Affairs, Key Lab Anim Genet & Breeding Tibetan Plateau, Lanzhou 730050, Peoples R China

关键词： endangered Yangba cattle; whole-genome resequencing; phylogeny; population genetics; gene introgression

期刊名称：ANIMALS （ 影响因子：2.7； 五年影响因子：3.2 ）

ISSN： 2076-2615

年卷期： 2025 年 15 卷 7 期

页码：

收录情况： SCI

摘要： This study unveils the unique origins, evolution, and genetic variations of the Yangba cattle, an endangered breed in China, through a comparative genomic analysis involving 202 individuals from 21 domestic and international breeds. Genetic component analysis revealed that the Yangba cattle comprise four ancestral lineages: Eurasian taurine (18%), East Asian taurine (26%), Chinese indicine (39%), and Indian indicine (17%). Their high genetic diversity and low inbreeding coefficient set them apart significantly from mainstream commercial breeds. Gene introgression analysis indicated that the influx of genetic material from East Asian taurine has enhanced the Yangba cattle's adaptability to environmental stress, while the introgression from Chinese indicine has endowed them with unique advantages in muscle development and tissue repair. A genome-wide selection scan identified strong positive selection signals for genes such as ABCC2, which is involved in immune regulation, and NCOA3, which plays a role in growth regulation, in the Yangba cattle. This study systematically elucidates, for the first time, the composite ancestral composition and mechanisms of adaptive evolution in Yangba cattle. These findings offer critical insights into the conservation and sustainable utilization of endangered cattle resources and underscore the importance of implementing effective breeding programs.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台