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Genetic Diversity and Population Structure of Five Chinese Local Cattle Breeds in Guizhou Province, China

文献类型： 外文期刊

作者： Wang, Xin 1 ; Xu, Longxin 1 ; Wu, Junda 1 ; Zhao, Yuanfeng 1 ; Zhou, Wenzhang 1 ; Zhang, Kaikai 1 ; Wang, Hua 1 ;

作者机构： 1.Guizhou Acad Agr Sci, Inst Anim Husb & Vet Med, Guiyang 550000, Guizhou, Peoples R China

关键词： Genetic diversity; Genotyping array; Local cattle breeds; Population structure

期刊名称：INDIAN JOURNAL OF ANIMAL RESEARCH （ 影响因子：0.5； 五年影响因子：0.5 ）

ISSN： 0367-6722

年卷期： 2025 年 59 卷 6 期

页码：

收录情况： SCI

摘要： Background: This project analyzed the genetic diversity and population structure of five local cattle breeds in Guizhou, in order to implement the conservation plan for local cattle breeds and promote their sustainability. Methods: The experiments used a 100K SNP chip to obtain genotype data from the local cattle breeds, which was compared with that of two introduced breeds (Red Angus and Limousin) as controls (N=112). The genetic diversity, LD decay, PCA and phylogenetic tree were analyzed. Result: The effective number of alleles (Ne), nucleotide diversity (Pi) and LD decay rate of the local cattle breeds were higher than those of introduced breeds. The results of PCA, phylogenetic tree, G matrixand genetic distance analyses indicated that the five local breeds were on the same evolutionary branches without obvious clustering. The proportion of polymorphic markers (Pn), genetic diversityand genetic differences in the Weining cattle population was much higher than that of other populations. These findings provide a reference for the genetic structure and efficient protection and utilization of local cattle in Guizhou.

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