Whole-genome SNP markers reveal conservation status, signatures of selection, and introgression in Chinese Laiwu pigs.

ABSTRACT: Laiwu pigs are a Chinese indigenous breed that is renowned for its exceptionally high intramuscular fat content (average greater than 6%), providing an excellent genetic resource for the genetic improvement of meat quality of modern commercial pigs. To uncover genetic diversity, population structure, signature of selection, and potential exotic introgression in this breed, we sampled 238 Laiwu pigs from a state-supported conservation population and genotyped these individuals using GeneSeek 80K SNP BeadChip. We then conducted in-depth population genetics analyses for the Laiwu pig in a context of 1,116 pigs from 42 Eurasian diverse breeds. First, we show that the current Laiwu population has more abundant genetic diversity than the population of 18 years ago likely due to gene flow from Eu

SUBMITTER: Wang X 

PROVIDER: S-EPMC7896721 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature