数字农科院2.0

Multiomics analysis reveals signatures of selection and loci associated with complex traits in pigs

文献类型： 外文期刊

作者： Liu, Lei;Yi, Guoqiang;Yao, Yilong;Liu, Yuwen;Li, Jiang;Yang, Yalan;Liu, Mei;Fang, Lingzhao;Mo, Delin;Zhang, Longchao;Liu, Yonggang;Niu, Yongchao;Wang, Liyuan;Qu, Xiaolu;Pan, Zhangyuan;Wang, Lei;Chen, Muya;Fan, Xinhao;Chen, Yun;Zhang, Yongsheng;Li, Xingzheng;Wang, Zhen;Tang, Yijie;Huang, Hetian;Yuan, Pengxiang;Liao, Yuying;Li, Xinjian;Yin, Zongjun;Liu, Di;Zhang, Dongjie;Zhou, Quanyong;Wu, Wangjun;Jiang, Jicai;Gao, Yahui;Liu, George E.;Wang, Lixian;Chen, Yaosheng;Li, Kui;Groenen, Martien A. M.;Tang, Zhonglin

作者机构：

关键词： （1-1-1）epigenetics;genomic variation;pan-genome;phenotype differentiation;pig;skeletal muscle development

期刊名称： IMETA

ISSN： 2770-5986

年卷期： 2025 年 3 卷 6 期

页码：

收录情况： SCIE（2025版）

摘要： The genetic basis of complex traits and phenotypic differentiation remains unclear in pigs. Using nine genomes-seven of which were newly generated, high-quality de novo assembled genomes-and 1081 resequencing genomes, we built a pan-genome and identified 134.24Mb nonredundant nonreference sequences, 1099 novel protein-coding genes, 187,927 structural variations (SVs) and 30,143,962 single-nucleotide polymorphisms (SNPs). Analysis of selective domestication revealed BRCA1 associated with enhanced adipocyte growth and fat deposition, and ABCA3 linked to an alleviated immune response and reduced lung injury. Integrating 162 transcriptomes and 162 methylomes of skeletal muscle across 27 developmental stages revealed the regulatory mechanism of phenotypic differentiation between Eastern and Western breeds. Artificial selection reshaped local DNA methylation status and imparted regulatory effects on the progression patterns of heterochronic genes such as GHSR and BDH1, particularly during embryonic development. Altogether, our work provides valuable resources for understanding molecular mechanisms behind phenotypic variations and enhancing the genetic improvement programs in pigs.

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