您好，欢迎访问新疆农垦科学院 机构知识库！
新疆农垦科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Genetic Diversity Estimation and Genome-Wide Selective Sweep Analysis of the Bazhou Yak

文献类型： 外文期刊

作者： Yang, Baigao 1 ; Zhang, Hang 1 ; Feng, Xiaoyi 1 ; Yu, Zhou 1 ; Cao, Jianhua 1 ; Niu, Yifan 1 ; Wan, Pengcheng 2 ; Liu, Gang 3 ; Zhao, Xueming 1 ;

作者机构： 1.Chinese Acad Agr Sci CAAS, Inst Anim Sci IAS, 2 Yuanmingyuan Western Rd, Beijing 100193, Peoples R China

2.Xinjiang Acad Agr & Reclamat Sci, Inst Anim Husb & Vet Sci, State Key Lab Sheep Genet Improvement & Hlth Breed, Shihezi 832000, Peoples R China

3.Natl Anim Husb Serv, Beijing 100193, Peoples R China

关键词： Bazhou yak; whole-genome sequencing; genetic diversity; selection sweep

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 6 期

页码：

收录情况： SCI

摘要： The Bazhou yak, a major native meat yak breed in Xinjiang, China, is renowned for its fast growth rate, strong adaptability, and particularly high intramuscular fat (IMF) content. However, limited knowledge regarding its phylogenetic history and genomic composition has hindered its long-term conservation and utilization. This study evaluated the genetic diversity, population phylogenetics, and genome-wide selective sweep analysis (GWSA) of 100 newly obtained Bazhou yaks through genome resequencing, as well as 340 public yak genomes from nine other populations on the Qinghai-Tibet Plateau. The results revealed moderate diversity, lower genomic inbreeding levels, and rapid linkage disequilibrium (LD) decay in Bazhou yaks. Principal component analysis (PCA) and phylogenetic analysis showed a clear separation of Bazhou yaks from other yak populations, indicating the Bazhou yak as an independent genetic population. Furthermore, less genetic differentiation was found between the Bazhou yak and the Huanhu yak, while ADMIXTURE analysis revealed a common ancestral lineage between Bazhou yaks and Huanhu yaks, indicating an important genetic contribution of the Qinghai yak population to Bazhou yaks. The GWSA identified a total of 833 selected genes in Bazhou yaks using the top 5% interaction windows of both parameters (FST, Pi ratio, and XP-EHH). A significant number of these genes are related to fat synthesis and deposition, such as MTOR, APOA1, and GPAT4. In summary, this study sheds light on the phylogenetic status and distinctive genomic features of Bazhou yaks, which facilitates our understanding of the genetic basis of the IMF phenotype in Bazhou yaks.

  • 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：新疆农垦科学院

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