Acta Veterinaria et Zootechnica Sinica ›› 2024, Vol. 55 ›› Issue (5): 1945-1957.doi: 10.11843/j.issn.0366-6964.2024.05.013

• ANIMAL GENETICS AND BREEDING • Previous Articles     Next Articles

Identification of Candidate Genes for Pork Texture Traits Using GWAS Combined with Co-localisation of DNA Methylation

CUI Shengdi1,2,3, WANG Kai4, ZHAO Zhenjian1,2,3, CHEN Dong1,2,3, SHEN Qi1,2,3, YU Yang1,2,3, WANG Junge1,2,3, CHEN Ziyang1,2,3, YU Shixin1,2,3, CHEN Jiamiao1,2,3, WANG Xiangfeng1,2,3, TANG Guoqing1,2,3*   

  1. 1. State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China;
    2. Key Laboratory of Livestock and Poultry Multi-omics of Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China;
    3. Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China;
    4. New Hope Liuhe CO. LTD., Chengdu 625014, China
  • Received:2023-12-08 Online:2024-05-23 Published:2024-05-27

Abstract: To gain a deeper understanding of the genetic basis of meat quality traits, this study performed GWAS analysis using genotype-based populated sequencing data and co-localisation analysis with previously published EWAS results. The study identified 515 genome-wide significant SNP loci and 4 134 SNP loci at the proposed significance threshold, which involved 406 genes, including 262 protein-coding genes, and resulted in the identification of 6 important candidate genes that may be associated with meat quality traits. Meanwhile, comparison with the results of EWAS revealed that 12 significant CpG loci overlapped with significant SNP loci. The study results can provide a more solid theoretical foundation and data support for breeding efforts to improve pork quality.

Key words: genome-wide association study, SNPs, meat traits

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