Genome-wide assessment of genetic diversity and population structure insights into admixture and introgression in Chinese indigenous cattle.

ABSTRACT: BACKGROUND:China exhibits a great diversity of ecosystems and abundant cattle resources, with nearly 30 million cattle from 53 indigenous breeds reared in specific geographic regions. To explore the genetic diversity and population structure of Chinese indigenous cattle, a population genetic analysis at both the individual and population levels was conducted and the admixture analysis was performed. We genotyped 572 samples from 20 Chinese indigenous cattle breeds using GeneSeek Genomic Profiler Bovine LD (GGP-LD, 30 K) and downloaded the published data of 77 samples from 4 worldwide commercial breeds genotyped with Illumina BovineSNP50 Beadchip (SNP50, 50 K). RESULTS:In principal component analysis (PCA) and neighbour-joining (NJ) tree analysis, samples of the same breeds were grouped tog

SUBMITTER: Zhang W 

PROVIDER: S-EPMC6302425 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature