Genetic characterization and selection of litter size traits of Guizhou Black goat and Meigu goat
文献类型： 外文期刊
作者： Zhao, Yanpin 1 ; Han, Yong 2 ; Yang, Yang 2 ; Yuan, Chao 2 ; Long, Yong 2 ; Xiao, Wen 1 ;
作者机构： 1.Guizhou Univ, Coll Anim Sci, Guiyang, Peoples R China
2.Guizhou Acad Agr Sci, Inst Anim Husb & Vet Sci, Guiyang, Peoples R China
3.Guizhou Univ Tradit Chinese Med, Guiyang, Peoples R China
期刊名称：PLOS ONE （ 影响因子：2.6； 五年影响因子：3.2 ）
ISSN： 1932-6203
年卷期： 2024 年 19 卷 11 期
页码：
收录情况： SCI
摘要： The aim of this study is to explore the genetic characteristics of Guizhou Black goats and Meigu goats and their relationship to reproductive performance through population structure analysis, genetic diversity assessment, and selection signal analysis. Blood samples of 19 Guizhou Black goats and 11 Meigu goats were collected for whole-genome high-throughput sequencing. Using PCA and ADMIXTURE analyses, their population structure and genetic relationships were revealed. Further genetic diversity analysis showed that although there is significant population differentiation, the levels of genetic diversity are similar. Subsequently, these goats were categorized into high-yield and low-yield groups based on their litter sizes, with 15 goats in each group. Then, a selection signal analysis was performed using F-ST and pi ratios for 33,563 SNP loci. The results identified six candidate genes, including KCNIP4, GFRA2, and DGKH, which are significantly associated with high litter performance. These findings enhanced our understanding of the genetic characteristics and population structure of Guizhou Black goats and Meigu goats. Moreover, they provide an important theoretical foundation and scientific basis for further breeding improvements.
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