The impact of haplotypes derived from Chinese pigs on genetic variation and economic traits in the Duroc breed.

ABSTRACT:

Background

The historical importation of Chinese pigs into Western countries has facilitated the introduction of Chinese haplotypes into European pig breeds, thereby shaping their genetic diversity and phenotypic traits. However, the genetic and biological implications of this introgression remain poorly understood.

Results

Based on SNP chip and resequencing data, we confirmed significant genetic introgression from Chinese pigs into commercial European lines. The genetic origins of the introgressed segments predominantly derive from Southern Chinese domestic pigs (CSDP), with additional contributions from other populations, such as Eastern Chinese domestic pigs (CEDP). Our study demonstrates that the selection pressure for Chinese pig introgression was stronger in Duroc pigs

SUBMITTER: Fang S 

PROVIDER: S-EPMC12551222 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature