中国畜禽种业2025，Vol.21Issue(11)：10-16,7.
基于SNP基因组分型数据的太行云牛遗传背景评估
Genetic Background Assessment of Taihang Yun Cattle Based on SNP Array
摘要
Abstract
In this study,we analyzed the genetic background of the Taihang Yun Cattle based on SNP genomic data,aiming to provide scientific support for its breeding and genetic improvement.Genotyping was conducted using the"Yuxin No.1"200 K Bovine SNP chip from Beijing Compass Agricultural Technology Co.,Ltd.and the Illumina GGP Bovine 100 K SNP chip.Taihang Yun Cattle(n=50),Jinan Cattle(n=19),Hereford(n=19),and Simmental(n=38)were genotyped to obtain genome-wide SNP data.Genetic diversity,ancestry composition,and linkage disequilibrium(LD)decay across the four populations were analyzed.The results showed that Taihang Yun cattle exhibit high genetic diversity and low levels of inbreeding.Genetically,Taihang Yun Cattle are more similar to Simmental cattle,with a relatively close evolutionary distance,whereas they are more distantly related to Jinan and Hereford cattle.In terms of ancestry composition,Simmental ancestry is the most prevalent,followed by Jinan and Hereford.The LD decay rate in Taihang Yun Cattle is relatively rapid,indicating low linkage between distant markers.In summary,Taihang Yun Cattle are genetically distinct from Simmental,Jinan,and Hereford cattle,fulfilling a key prerequisite for recognition as an independent breed.However,there remains potential for further selective breeding and genetic improvement.关键词
太行云牛/血统组成/遗传背景/单核苷酸多态性Key words
Taihang Yun cattle/Ancestral composition/Genetic background/Single nucleotide polymorphisms分类
农业科技引用本文复制引用
刘彦杰,牛晓艳,淡江华,李博,王泽昭,张元庆..基于SNP基因组分型数据的太行云牛遗传背景评估[J].中国畜禽种业,2025,21(11):10-16,7.基金项目
山西省科技重大专项计划"揭榜挂帅"项目:肉牛边鸡地方特色畜禽种质资源创新及品种选育(202201140601026-2 （）
202201140601026-3). （）
