Statistical Analysis of Reproductive Traits in Jinwu Pig and Identification of Genome-Wide Association Loci

文献类型： 外文期刊

第一作者： Chen, Wenduo

作者： Chen, Wenduo;Zhao, Ayong;Chen, Wenduo;Zhao, Ayong;Pan, Jianzhi;Tan, Kai;Zhu, Zhiwei;Zhang, Liang;Yu, Fuxian;Liu, Renhu;Huang, Jing;Zhong, Liepeng

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关键词： reproductive traits; genome-wide association analysis; Jinwu pig; SNPs

期刊名称：GENES （ 影响因子：2.8； 五年影响因子：3.2 ）

ISSN：

年卷期： 2025 年 16 卷 5 期

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收录情况： SCI

摘要： Background: The Jinwu pig is a novel breed created by crossbreeding Jinhua and Duroc pigs, displaying superior meat quality, strong adaptability to coarse feed, high production performance, and a rapid growth rate. However, research on its reproductive traits and genomic characteristics has not been systematically reported. Methods: In this study, we investigated the genetic basis of reproductive traits in Jinwu pigs us-ing a genome-wide association study. We analyzed 2831 breeding records from 516 Jinwu sows to evaluate the effects of fixed factors (farrowing season, parity, and mated boar) on six reproductive traits: the total number of births (TNB), number born alive (NBA), number of healthy offspring produced (NHOP), weak litter size (WLS), number of stillbirths (NS), and number of mummies (NM). Results: A total of 771 genome-wide significant single-nucleotide polymorphisms (SNPs) and ten potential candidate genes associated with pig reproductive traits were identified: VOPP1, PGAM2, TNS3, LRFN5, ORC1, CC2D1B, ZFYYE9, TUT4, DCN, and FEZF1. TT-genotype-carrier individuals of the pleiotropic SNP rs326174997 exhibited significantly higher TNB, NBA, and NHOP trait-related phenotypic values. Conclusions: These findings provide a foundation for the reproductive breeding of Jinwu pigs and offer new insights into molecular genetic breeding in pigs.

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