畜牧兽医学报 ›› 2026, Vol. 57 ›› Issue (1): 181-193.doi: 10.11843/j.issn.0366-6964.2026.01.016

• 遗传育种 • 上一篇    下一篇

全基因组关联分析筛选大别山牛体重体尺性状相关分子标记

张刘1,2(), 李倩2, 赵拴平2, 金海2, 李庆岗2, 章会斌2, 杜欣怡2, 金四华3, 朱勇4, 赵克勤5, 徐磊2(), 王淑娟1()   

  1. 1.安徽科技学院动物科学学院,滁州 233100
    2.安徽省农业科学院畜牧兽医研究所,安徽省畜禽产品安全重点实验室,合肥 230031
    3.安徽农业大学动物科技学院,合肥 230036
    4.太湖县久鸿农业综合开发有限责任公司,安庆 246200
    5.安徽省霍山县水口寺农业有限公司,六安 237200
  • 收稿日期:2025-05-14 出版日期:2026-01-23 发布日期:2026-01-26
  • 通讯作者: 徐磊,王淑娟 E-mail:zhangliu334455@163.com;xuleirock@163.com;wangshujuan2012@hotmail.com
  • 作者简介:张刘,硕士生,主要从事动物遗传育种与繁殖研究,E-mail:zhangliu334455@163.com
  • 基金资助:
    肉牛牦牛产业技术体系合肥试验站(CARS-37);安徽省科技攻坚计划项目子课题(202423m10050001)

Identification of Molecular Markers Associated with Body Weight and Size Traits through Genome-Wide Association Study in Dabieshan Cattle

ZHANG Liu1,2(), LI Qian2, ZHAO Shuanping2, JIN Hai2, LI Qinggang2, ZHANG Huibin2, DU Xinyi2, JIN Sihua3, ZHU Yong4, ZHAO Keqin5, XU Lei2(), WANG Shujuan1()   

  1. 1.College of Animal Science,Anhui Science and Technology University,Chuzhou 233100,China
    2.Anhui Provincial Key Laboratory of Livestock and Poultry Product Safety,Institute of Animal Husbandry and Veterinary Medicine,Anhui Academy of Agricultural Sciences,Hefei 230031,China
    3.College of Animal Science and Technology,Anhui Agricultural University,Hefei 230036,China
    4.Taihu County Jiuhong Agricultural Comprehensive Development Co. ,Ltd. ,Anqing 246200,China
    5.Anhui Province Huoshan County Shuikousi Agricultural Co. ,Ltd. ,Lu'an 237200,China
  • Received:2025-05-14 Online:2026-01-23 Published:2026-01-26
  • Contact: XU Lei, WANG Shujuan E-mail:zhangliu334455@163.com;xuleirock@163.com;wangshujuan2012@hotmail.com

摘要:

旨在鉴定与大别山牛体重和体尺性状相关的分子标记位点与候选基因,以深入探究其遗传机制。本研究选取30~36月龄的515头健康大别山牛开展体重、十字部高、体斜长、胸围、腹围、管围、坐骨端宽及腰角宽8个性状指标表型测定。基于纽勤100K芯片对515头大别山牛进行基因分型,利用混合线性模型(mixed linear model,MLM)开展全基因组关联分析(genome-wide association study,GWAS)。结果发现44个SNPs位点与体重和体尺性状显著相关,注释到426个候选基因。其中,重点关注了6个与肌肉发育、软骨生成及骨代谢过程相关的候选基因(WFIKKN2、MMP2、MATN1、PUM1、VKORC1和VKORC1L1)。GO和KEGG功能富集分析进一步表明,VKORC1和VKORC1L1基因参与维生素K代谢等关键生物学过程,有待进一步挖掘。综上,本研究结果可为大别山牛品种改良提供明确的分子靶点和重要参考。

关键词: 大别山牛, SNP, 体重体尺性状, 全基因组关联分析

Abstract:

The objective of this study was to identify molecular marker loci and candidate genes associated with body weight and size traits in Dabieshan cattle, thereby elucidating their genetic mechanisms. A total of 515 healthy Dabieshan cattle aged between 30 and 36 months were selected, phenotypic measurements of eight traits were performed, including body weight, withers height, body slanting length, chest circumference,abdominal circumference, cannon bone circumference,hucklebone width, and hip width. Genotyping was performed using the Neogen 100K SNP chip, and a genome-wide association study (GWAS) was conducted using a mixed linear model (MLM). The results revealed 44 single nucleotide polymorphisms (SNPs) loci significantly associated with body weight and size traits, which were annotated to 426 candidate genes. Among these, 6 candidate genes (WFIKKN2, MMP2, MATN1, PUM1, VKORC1, and VKORC1L1) related to muscle development, chondrogenesis, and bone metabolism were of particular interest. Functional enrichment analysis using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) further indicated that the VKORC1 and VKORC1L1 genes are involved in key biological processes such as vitamin K metabolism, which warrants further investigation. In conclusion, the findings of this study provide clear molecular targets and valuable insights for the genetic improvement of the Dabieshan cattle.

Key words: Dabieshan cattle, SNP, body weight and size traits, whole-genome association study

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