秦川牛的群体结构与血统

Population structure and ancestry of Qinchuan cattle.

作者信息

Chen N, Huang J, Zulfiqar A, Li R, Xi Y, Zhang M, Dang R, Lan X, Chen H, Ma Y, Lei C

机构信息

College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.

College of Life Science, Xinyang Normal University, Xinyang, Henan, 464000, China.

出版信息

Anim Genet. 2018 Jun;49(3):246-248. doi: 10.1111/age.12658. Epub 2018 Apr 6.

DOI:10.1111/age.12658

PMID:29624707

Abstract

The aim of this study was to estimate population structure and ancestry of Qinchuan cattle by genotyping 27 individuals using the GeneSeek HD 77k BeadChip, and another 1355 cattle representing breeds distributed worldwide, which had been genotyped using the Illumina Bovine 50k BeadChip. Qinchuan cattle were characterized by a dominant Bos taurus ancestry, accompanied by a considerable proportion of Bos indicus ancestry based on principal components analysis and supervised admixture analysis. A small proportion of Bos javanicus ancestry was detected as well. A similar admixture pattern in both Qinchuan and Turkish cattle breeds reflects their similar degrees of zebu introgression. Our study presents a relatively clear view of the population structure and ancestry of Qinchuan cattle, serving to benefit our understanding of this breed and leading to better targeted conservation approaches moving forward.

摘要

本研究的目的是通过使用GeneSeek HD 77k芯片对27头秦川牛进行基因分型，以及对另外1355头代表全球分布品种的牛进行基因分型（这些牛已使用Illumina牛50k芯片进行基因分型），来估计秦川牛的群体结构和血统。基于主成分分析和监督混合分析，秦川牛以占主导地位的欧洲牛血统为特征，同时伴有相当比例的瘤牛血统。还检测到一小部分爪哇牛血统。秦川牛和土耳其牛品种中相似的混合模式反映了它们相似的瘤牛渗入程度。我们的研究提供了相对清晰的秦川牛群体结构和血统视图，有助于增进我们对该品种的了解，并为未来更好地制定针对性的保护方法提供依据。