新疆农业科学 ›› 2022, Vol. 59 ›› Issue (11): 2815-2821.DOI: 10.6048/j.issn.1001-4330.2022.11.028

• 马运动生理与健康养殖 • 上一篇    下一篇

伊犁马MCT1基因多态性与速度性能的关联性分析

吴金秋1,2(), 张冲1, 孟军1,2,3, 曾亚琦1,2,3, 加娜尔・努尔顿4, 王川坤1,2, 袁鑫鑫1,2, 王彤亮1,2, 姚新奎1,2,3()   

  1. 1.新疆农业大学动物科学学院,乌鲁木齐 830052
    2.新疆农业大学马产业研究院,乌鲁木齐 830052
    3.新疆马繁育与运动生理重点实验室,乌鲁木齐 830052
    4.新疆伊犁哈萨克自治州昭苏马场,新疆昭苏 835000
  • 收稿日期:2022-01-11 出版日期:2022-11-20 发布日期:2022-12-28
  • 通信作者: 姚新奎
  • 作者简介:吴金秋(1993-),女,新疆乌鲁木齐人,硕士研究生,研究方向为动物生产学,(E-mail)1610637765@qq.com
  • 基金资助:
    自治区重点实验室开放课题“基于血液转录组的伊犁马运动相关功能基因筛选及其功能研究”;新疆维吾尔自治区重大科技专项(2022A02007-1);自治区创新环境(人才、基地)建设专项(PT2220);新疆农业大学大学生创新项目“伊犁马MCT1基因多态性与速度性能关联性分析”(dxscx2021108)

Correlation Analysis between MCT1 Gene Polymorphismsand Speed Performance in Yili Horses

WU Jinqiu1,2(), ZHANG Chong1, MENG Jun1,2,3, ZENG Yaqi1,2,3, Jianaer Nuerdun4, WANG Chuankun1,2, YUAN Xinxin1,2, WANG Tongliang1,2, YAO Xinkui1,2,3()   

  1. 1. College of Animal Science, Xinjiang Agricultural University,Urumqi 830052 China
    2. Research Institute of Horse Industry, Xinjiang Agricultural University, Urumqi 830052, China
    3. Xinjiang Key Laboratory of Equine Breeding and Exercise Physiology, Urumqi 830052, China
    4. Xinjiang Yili Zhaosu Stud, Zhaosu 835000, China
  • Received:2022-01-11 Online:2022-11-20 Published:2022-12-28
  • Correspondence author: YAO Xinkui
  • Supported by:
    The open project of the key laboratory of the autonomous region "Screening and functional research of Yili horse movement-related functional genes based on blood transcriptome";Major science and technology projects of Xinjiang Uygur Autonomous Region(2022A02007-1);The Innovation Environment (Talent, Base) Construction Project of Xinjiang Uygur Autonomous Region(PT2220);"Association analysis of MCT1 gene polymorphism and speed performance in Yili horses", the innovation project of Xinjiang Agricultural University(dxscx2021108)

摘要:

【目的】研究伊犁马MCT1基因多态性与速度性能的关联性,为专门化用途速度马的选种育种提供技术支撑。【方法】以50匹参加2 000 m速度赛的2岁伊犁马为研究对象,运用DNA直接测序法筛选伊犁马MCT1基因第2、3外显子的突变位点,分析其多态性位点以及与伊犁马2 000 m比赛成绩的关联性。【结果】在伊犁马MCT1基因第2外显子上发现一个SNP位点,在伊犁马MCT1基因第3外显子上没有发现突变位点,在g.52168582处,碱基T突变为碱基G,此突变位点为错义突变,该突变导致其编码氨基酸由苯丙氨酸变为亮氨酸,属于中度多态位点,处于Hardy-Weinberg平衡状态,共存在TT、TG、GG 3种基因型,TT基因平均速度高于GG和TG基因型平均速度,且TT基因型平均速度显著高于GG基因型平均速度(P<0.05)。【结论】在伊犁马MCT1基因第2外显子g.52168582T>G处TT基因型更有利于伊犁马2 000 m比赛速度。

关键词: 伊犁马; MCT1基因; 遗传多态性; 速度性能

Abstract:

【Objective】 The study the correlation between MCT1 gene polymorphism and speed performance in Yili horses, and provide technical support for the selection and breeding of specialized speed horses.【Methods】 50 2-year-old Yili horses participating in the 2,000 m speed race were selected as the research objects. The mutation site of exon 2 and 3 of MCT1 gene of Yili horse was screened by DNA direct sequencing method, and analyze its polymorphism loci and its association with the performance of Yili horse 2000 m race.【Results】 SNP site was found on the second exon of the Yili horse MCT1 gene, but no mutation site was found on the third exon of the Yili horse MCT1 gene. At g.52168582, the base T was mutated to the base G, and the mutation site was a missense mutation, which caused the encoded amino acid to be changed from phenylalanine. Acid changes to leucine, which belongs to moderate polymorphism site and is in a Hardy-Weinberg equilibrium state. There are three genotypes of TT, TG and GG. The correlation analysis with the 2000 m race results shows that the average speed of TT gene is higher than that of GG and GG. The average speed of TG genotype, and the average speed of TT genotype was significantly higher than that of GG genotype (P<0.05).【Conclusion】 The TT genotype at the second exon g.52168582T>G of the MCT1 gene of Yili horses is more conducive to the 2000 m race speed of Yili horses.

Key words: Yili horse; MCT1 gene; genetic polymorphism; speed performance

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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