生物技术通报 ›› 2014, Vol. 0 ›› Issue (4): 87-90.

• 研究报告 • 上一篇    下一篇

牦牛MC1R基因的多态性研究

陈思1, 柴志欣1,2, 王永1,2, 钟金城1,2   

  1. (1.西南民族大学 动物遗传育种学国家民委-教育部重点实验室,成都 610041;
    2.西南民族大学青藏高原研究院,成都 610041)
  • 收稿日期:2013-11-13 出版日期:2014-04-29 发布日期:2014-04-29
  • 作者简介:陈思,女,硕士,研究方向:基因组学与生物信息学;E-mail:swunyak2525@163.com
  • 基金资助:
    国家科技支撑计划课题(2012BAD13B06),中央高校基本科研业务费专项资金项目(11NZYTH03)

The Polymorphism of MC1R Gene in Yak

Chen Si1, Chai Zhixin1,2, Wang Yong1,2, Zhong Jincheng1,2,   

  1. (1. Key Laboratory of Animal Genetics and Breeding,Southwest University for Nationalities,State Ethnic Affairs Commission and Ministry of Education,Chengdu 610041;
    2. Institute of Tibetan Plateau ResearchSouthwest University for Nationalities,Chengdu 610041)
  • Received:2013-11-13 Published:2014-04-29 Online:2014-04-29

摘要: 旨在为探究牦牛MC1R基因多态性与毛色形成的相关性,利用PCR-SSCP和DNA测序技术,对64头牦牛(33头黑色九龙牦牛,31头白色天祝白牦牛)的MC1R基因多态性进行检测。结果表明:天祝白牦牛和九龙牦牛均有3种基因型(AA、BB、AB),但天祝白牦牛的多态性较低,而九龙牦牛表现为中度多态。经χ2适合性检验,2个牦牛品种在该基因多态位点上均偏离Hardy-Weinberg平衡。测序结果表明BB型与AA型在该片段的第179位碱基处存在C→A单碱基突变;第214位碱基处发生T→C突变。

关键词: 牦牛, MC1R基因, PCR-SSCP, 基因多态性

Abstract: It was to explore the relationship between MC1R genotype and the coat color formation in yak, polymorphism of MC1R gene was detected by PCR-SSCP and DNA sequencing techniques in 64 yaks(33 white coat color and 31 black coat color). The results showed that there were polymorphisms in the amplified region for the Tianzhu yak and Jiulong yak. In Tianzhu yak and Jiulong yak, three genotypes(AA, BB and AB)were detected. The result of χ2, three yak breeds were not fit for Hardy-Weinberg law. Sequencing revealed on single nucleotide mutation(C→A)at 179bp and(T→C)at 214 bp of the amplified region of Tianzhu yak and Jiulong yak.

Key words: Yak, MCIR gene, PCR-SSCP, Polymorphism