Genetic introgression from commercial European pigs to the indigenous Chinese Lijiang breed and associated changes in phenotypes - Archive ouverte HAL Access content directly
Journal Articles Genetics Selection Evolution Year : 2024

Genetic introgression from commercial European pigs to the indigenous Chinese Lijiang breed and associated changes in phenotypes

Siqi Jin
  • Function : Author
Suyun Fang
  • Function : Author
Dawei Yan
  • Function : Author
Hao Zhang
  • Function : Author
Jingru Nie
  • Function : Author
Jinqiao Liu
  • Function : Author
Minjuan Lv
  • Function : Author
Bo Zhang
  • Function : Correspondent author
  • PersonId : 1370715

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Xinxing Dong
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Abstract

AbstractBackgroundGene flow is crucial for enhancing economic traits of livestock. In China, breeders have used hybridization strategies for decades to improve livestock performance. Here, we performed whole-genome sequencing of a native Chinese Lijiang pig (LJP) breed. By integrating previously published data, we explored the genetic structure and introgression of genetic components from commercial European pigs (EP) into the LJP, and examined the impact of this introgression on phenotypic traits.ResultsOur analysis revealed significant introgression of EP breeds into the LJP and other domestic pig breeds in China. Using a haplotype-based approach, we quantified introgression levels and compared EP to LJP and other Chinese domestic pigs. The results show that EP introgression is widely prevalent in Chinese domestic pigs, although there are significant differences between breeds. We propose that LJP could potentially act as a mediator for the transmission of EP haplotypes. We also examined the correlation between EP introgression and the number of thoracic vertebrae in LJP and identified VRTN and STUM as candidate genes for this trait.ConclusionsOur study provides evidence of introgressed European haplotypes in the LJP breed and describes the potential role of EP introgression on phenotypic changes of this indigenous breed.
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Origin : Publication funded by an institution

Dates and versions

hal-04531072 , version 1 (03-04-2024)

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Ruifei Yang, Siqi Jin, Suyun Fang, Dawei Yan, Hao Zhang, et al.. Genetic introgression from commercial European pigs to the indigenous Chinese Lijiang breed and associated changes in phenotypes. Genetics Selection Evolution, 2024, 56 (1), pp.24. ⟨10.1186/s12711-024-00893-8⟩. ⟨hal-04531072⟩
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