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2025年5月12日 星期一
农业生物技术学报  2021, Vol. 29 Issue (2): 298-306    DOI: 10.3969/j.issn.1674-7968.2021.02.010
  研究论文与报告 本期目录 | 过刊浏览 | 高级检索 |
FGF21基因多态性与不同性别绵羊生长性状和胴体性状的关联分析
安清明1,2, 吴震洋1, 孟金柱1, 赵园园1, 王星1, 罗玉柱2,*
1 铜仁学院 农林工程与规划学院,铜仁 554300;
2 甘肃农业大学 草食动物生物技术重点实验室,兰州 730070
Polymorphisms of FGF21 Gene and Their Association Analysis with Growth and Carcass Traits in Ovine (Ovis arise) with Different Genders
AN Qing-Ming1,2, WU Zhen-Yang2, MENG Jin-Zhu1, ZHAO Yuan-Yuan1, WANG Xing1, LUO Yu-Zhu2,*
1 College of Agriculture and Forestry Engineering and Planning, Tongren University, Tongren 554300, China;
2 Gansu Key Laboratory of Herbivorous Animal Biotechnology, Gansu Agricultural University, Lanzhou 730070, China
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摘要 成纤维细胞生长因子21 (fibroblast growth factor 21, FGF21)是一个重要的内分泌调节蛋白因子,对生物体的个体发育和新陈代谢具有重要的作用。为探讨FGF21基因多态性与绵羊(Ovis aries)生长性状和胴体性状的相关性,本研究采集5个不同品种绵羊的血样并提取基因组DNA (多态性检测羊数170只, 关联性分析羊数756只),并测定相关生产数据,用PCR-单链构象多态(PCR-single strand conformation polymorphism, PCR-SSCP)方法检测不同品种绵羊中FGF21基因Exon-1区和Exon-3区变异。利用一般线性模型(generalized linear models, GLMs)分析Exon-3区中等位基因对罗姆尼羔羊(Romney lamb)相关生产性状的影响。结果表明:绵羊FGF21基因Exon-1区和Exon-3区共检测到6个核苷酸变异,其中位点c.554 C/T突变导致p.Pro185Leu氨基酸变异。生长性状关联性结果表明:Exon-3区等位基因对羔羊生长性状的影响存在性别差异。公羔中存在等位基因A2的群体比缺失个体有较低的断尾重和断奶重(P<0.05),而对母羔却无显著影响;在母羔中,存在等位基因B2的群体具有较低的断奶重和断奶前生长速度(P<0.05),对公羔却无显著影响;其他等位基因对羔羊的生长性状无影响。胴体性状关联结果表明,存在等位基因A2的群体具有较低的热胴体重(P<0.05),存在等位基因B2的群体具有较高的热胴体重、肩部瘦肉量和总瘦肉量(P<0.05);其他等位基因对胴体性状无显著影响。结果表明,绵羊FGF21基因具有丰富的多态性,且Exon-3区等位基因A2和B2对绵羊生长性状的影响存在性别差异,且对绵羊的生长性状和胴体性状具有显著影响。本研究筛选出可以改善绵羊生长性状、胴体性状的变异位点,为提高绵羊重要经济性状的分子标记提供基础依据,为绵羊分子标记辅助育种提供有效的分子遗传标记,为绵羊的遗传改良提供一定参考。
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作者相关文章
安清明
吴震洋
孟金柱
赵园园
王星
罗玉柱
关键词 FGF21基因性别差异生长性状胴体性状    
Abstract:Fibroblast growth factor 21 (FGF21) is an important endocrine regulatory protein factor, which plays an important role in ontogenesis and metabolism. In order to analyze the effect of polymorphisms of ovine FGF21 gene on growth traits and carcass traits in lambs (Ovis arise), to filter variation of FGF21 gene. Blood samples of 5 different commodity sheep were collected, including 170 sheep were tested for polymorphism, 756 Romney lambs were analyzed for correlation which relevant production data were collected. DNA were extracted and polymorphisms in Exon-1 and Exon-3 regions of FGF21 gene were detected by PCR-single strand conformation polymorphism (PCR-SSCP), and the relationship between allele of Exon-3 regions and production traits in lambs was investigated using generalized linear models (GLMs). In total, 6 SNPs were detected in Exon-1 and Exon-3 regions of ovine FGF21 gene, the nucleotide substitution c.554 C/T in Exon-3 resulted in amino acid change (p.Pro185Leu). The association analysis results showed that the allele in Exon-3 region of ovine FGF21 gene had different effects on growth traits of male and female lambs. In male lambs, the presence of A2 was associated with decreased tailing weight and weaning weight (P<0.05), and in female lambs the presence of B2 was associated with decreased weaning weight and pre-weaning growth rate (P<0.05). No associations were detected between the other allele and growth traits in population. Meanwhile, the results showed that the presence of A2 was associated with decreased hot-carcass weight (H-W), the presence of B2 was associated with increased H-W, should yield and total yield (P<0.05). No associations were detected between the other allele and carcass traits in male lambs. Ovine FGF21 gene had abundant polymorphisms. The allele of Exon-3 of ovine FGF21 gene might have different effects on growth traits of male and female lambs, and also might affect some carcass traits, which could improve the growth traits and carcass traits of lambs, and provide basis molecular genetic data for improving important economic traits of sheep, FGF21 gene could be an effective molecular marker for marker-assisted breeding of sheep, these results could provide scientific basis for genetic improvement of sheep.
Key wordsFGF21 gene    Gender difference    Growth traits    Carcass traits
收稿日期: 2020-08-02      出版日期: 2021-02-01
ZTFLH:  S813.3  
基金资助:甘肃省国际科技合作专项(18YF1WA082); 贵州省科技计划项目(黔科合基础[2018]1161); 贵州省普通高等学校科技拔尖人才支持计划(黔教合KY字[2017]089); 甘肃省高等学校创新能力提升项目(2019A-050); 铜仁学院创新团队项目(CXTD[2020-19])
通讯作者: *luoyz@gsau.edu.cn   
引用本文:   
安清明, 吴震洋, 孟金柱, 赵园园, 王星, 罗玉柱. FGF21基因多态性与不同性别绵羊生长性状和胴体性状的关联分析[J]. 农业生物技术学报, 2021, 29(2): 298-306.
AN Qing-Ming, WU Zhen-Yang, MENG Jin-Zhu, ZHAO Yuan-Yuan, WANG Xing, LUO Yu-Zhu. Polymorphisms of FGF21 Gene and Their Association Analysis with Growth and Carcass Traits in Ovine (Ovis arise) with Different Genders. 农业生物技术学报, 2021, 29(2): 298-306.
链接本文:  
http://journal05.magtech.org.cn/Jwk_ny/CN/10.3969/j.issn.1674-7968.2021.02.010     或     http://journal05.magtech.org.cn/Jwk_ny/CN/Y2021/V29/I2/298
 
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