中国畜牧兽医 ›› 2026, Vol. 53 ›› Issue (2): 879-891.doi: 10.16431/j.cnki.1671-7236.2026.02.033

• 遗传繁育 • 上一篇    下一篇

宣和猪ADRPFASN基因多态性及其与肉质性状的关联分析

赖金花1(), 王孝义1, 吴娅2, 朱东霞1, 朱怡轩1, 张克忠2, 黄兆军3, 管和平3, 李明丽1(), 鲁绍雄1()   

  1. 1.云南农业大学动物科学技术学院,昆明 650201
    2.宣威市畜禽改良工作站,宣威 655400
    3.宣威市农业农村局,宣威 655400
  • 收稿日期:2025-08-01 出版日期:2026-02-20 发布日期:2026-01-27
  • 通讯作者: 李明丽,鲁绍雄 E-mail:1760907848@qq.com;xiaolucao@126.com;shxlu_ynau@163.com
  • 作者简介:赖金花,E-mail: 1760907848@qq.com
  • 基金资助:
    云南省生猪产业技术体系(2023KJX0016);云南省创新引导与科技型企业培育计划项目(202104BI090022);国家重点研发计划(2022YFD1601902);云南省产业技术领军人才专项(YNWR-CYJS-2018-056)

Polymorphisms of ADRP and FASN Genes and Their Association with Meat Quality Traits in Xuanhe Pigs

LAI Jinhua1(), WANG Xiaoyi1, WU Ya2, ZHU Dongxia1, ZHU Yixuan1, ZHANG Kezhong2, HUANG Zhaojun3, GUAN Heping3, LI Mingli1(), LU Shaoxiong1()   

  1. 1.Faculty of Animal Science and Technology,Yunnan Agricultural University,Kunming 650201,China
    2.Xuanwei Livestock and Poultry Improvement Station,Xuanwei 655400,China
    3.Agriculture and Rural Bureau of Xuanwei City,Xuanwei 655400,China
  • Received:2025-08-01 Online:2026-02-20 Published:2026-01-27
  • Contact: LI Mingli, LU Shaoxiong E-mail:1760907848@qq.com;xiaolucao@126.com;shxlu_ynau@163.com

摘要:

目的 筛选宣和猪脂肪分化相关蛋白(adipose differentiation-related protein, ADRP)和脂肪酸合成酶(fatty acid synthase, FASN)基因的单核苷酸多态性(single nucleotide polymorphism,SNP)位点,并揭示SNP位点与宣和猪肉质性状的关联性。 方法 以120头宣和猪为试验对象,系统测定了其肉色、大理石纹、pH1、滴水损失和肌内脂肪(intramuscular fat,IMF)含量等肉质性状指标,对ADRPFASN基因进行PCR扩增及Sanger测序,筛选SNP位点,并基于最小二乘模型对各SNP位点不同基因型与宣和猪肉质性状进行关联分析。 结果ADRP基因第8外显子存在3个SNPs位点,其中rs325276230位点为同义突变,rs321564137和rs81217193位点为错义突变,其优势基因型分别为AA、AA和GG,优势等位基因分别为A、A和G,3个SNPs位点均符合Hardy-Weinberg平衡(P>0.05)。在FASN基因中共检出6个SNPs位点,包含4个同义突变位点(rs337531100、rs324640280、rs81478148、rs319161464)和2个错义突变位点(rs337267671、rs342967881),其优势基因型分别为TC、CC、TT、GG、GG和CT,优势等位基因分别为C、C、T、G、G和T,其中rs81478148位点偏离Hardy-Weinberg平衡(P<0.01)。关联分析结果显示,ADRPFASN基因SNP位点与宣和猪肉质性状存在显著关联,其中,ADRP基因rs325276230位点AA基因型个体的IMF含量、大理石纹、pH1极显著或显著高于GG基因型(P<0.01;P<0.05);rs321564137位点AA基因型个体的IMF含量显著高于AG基因型,肉色显著低于AG基因型(P<0.05);rs81217193位点GG基因型个体的IMF含量显著高于GA与AA基因型(P<0.05)。FASN基因rs337531100位点CC基因型个体的IMF含量显著高于TT与TC基因型(P<0.05);rs324640280位点TT基因型个体的肉色显著高于CT基因型(P<0.05);rs81478148位点CT基因型个体的肉色、pH1及滴水损失极显著或显著高于TT基因型(P<0.01;P<0.05);rs319161464位点AA基因型个体的pH1显著低于GG和GA基因型(P<0.05);rs337267671位点GG基因型个体的大理石纹显著高于GA与AA基因型(P<0.05);rs342967881位点TT基因型个体的IMF含量与大理石纹均显著高于CC基因型(P<0.05)。 结论 ADRPFASN基因SNP位点与宣和猪肉质性状存在显著关联,其中ADRP基因的rs325276230、rs321564137、rs81217193位点及FASN基因的rs337531100和rs342967881位点可作为改善宣和猪IMF含量的潜在分子标记。

关键词: 宣和猪; ADRP基因; FASN基因; 单核苷酸多态性; 肉质性状

Abstract:

Objective This study aimed to screen single nucleotide polymorphism (SNP) of adipose differentiation-related protein (ADRP) and fatty acid synthase (FASN) genes in Xuanhe pigs, and reveal the association between SNP and meat quality traits in Xuanhe pigs. Method The meat quality traits in 120 Xuanhe pigs, including meat color, marbling, pH1, drip loss, and intramuscular fat (IMF) content, were systematically measured. Furthermore, PCR amplification and Sanger sequencing were performed on ADRP and FASN genes, and the association between different genotypes at each SNP and meat quality traits in Xuanhe pigs was analyzed using a least squares model. Result Three SNPs were identified in exon 8 of ADRP gene, among which rs325276230 was synonymous mutation, and rs321564137 and rs81217193 were missense mutation, with dominant genotypes AA, AA, and GG, and dominant alleles A, A, and G, respectively. Three SNPs were in Hardy-Weinberg equilibrium (P>0.05). Six SNPs were detected in FASN gene, including 4 synonymous mutation sites (rs337531100, rs324640280, rs81478148, and rs319161464) and 2 missense mutation sites (rs337267671 and rs342967881). The dominant genotypes were TC, CC, TT, GG, GG, and CT, corresponding to dominant alleles C, C, T, G, G, and T, respectively. rs81478148 was deviated from Hardy-Weinberg equilibrium (P<0.01). The association analysis results demonstrated that SNP of ADRP and FASN genes were significantly associated with meat traits in Xuanhe pigs. The IMF content, marbling, and pH1 of AA genotype at rs325276230 of ADRP gene were extremely significantly or significantly higher than those of GG genotype (P<0.01 or P<0.05). The IMF content of AA genotype at rs321564137 was significantly higher than that of AG genotype, and the meat color of AA genotype was significantly lower than of AG genotype (P<0.05). The IMF content of GG genotype at rs81217193 was significantly higher than that of GA and AA genotypes (P<0.05). The IMF content of CC genotype at rs337531100 of FASN gene was significantly higher than that of TT and TC genotypes (P<0.05). The meat color of TT genotype at rs324640280 was significantly higher than of CT genotype (P<0.05). The meat color, pH1, and drip loss of CT genotype at rs81478148 were extremely significantly or significantly higher than those of TT genotype (P<0.01 or P<0.05). pH1 of AA genotype at rs319161464 was significantly lower than that of GG and GA genotypes (P<0.05). The marbling of GG genotype at rs337267671 was significantly higher than that of GA and AA genotypes (P<0.05). The IMF content and marbling of TT genotype at rs342967881 were significantly higher than those of CC genotype (P<0.05). Conclusion SNP of ADRP and FASN genes were significantly associated with meat quality traits in Xuanhe pigs, among which rs325276230, rs321564137, and rs81217193 of ADRP gene, and rs337531100 and rs342967881 of FASN gene could be used as potential molecular markers to improve the IMF content of Xuanhe pigs.

Key words: Xuanhe pigs; ADRP gene; FASN gene; single nucleotide polymorphism; meat quality trait

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