›› 2010, Vol. 37 ›› Issue (5): 108-111.

• 遗传繁育 • 上一篇    下一篇

奶牛FcRn受体α链基因启动子区的SSCP多态性研究

张春林1,2, 王加启1, 赵圣国1, 赵国琦2   

  1. (1.扬州大学动物科学与技术学院, 扬州 225009; 2.中国农业科学院北京畜牧兽医研究所 动物营养学国家重点实验室, 北京 100193)
  • 收稿日期:1900-01-01 修回日期:2010-03-09 出版日期:2010-05-20 发布日期:2010-05-20
  • 通讯作者: 王加启

SSCP Polymorphism Research of Promoter of FcRn α Chain Gene in Holstein Dairy Cows

ZHANG Chun-lin1,2, WANG Jia-qi1, ZHAO Sheng-guo1, ZHAO Guo-qi2   

  1. (1.College of Animal Science and Technology of Yangzhou University,Yangzhou 225009,China; 2.State Key Laboratory of Animal Nutrition,Institute of Animal Science,Chinese Academy of Agricultural Sciences,Beijing 100193,China)
  • Received:1900-01-01 Revised:2010-03-09 Online:2010-05-20 Published:2010-05-20
  • Contact: WANG Jia-qi

摘要: 以189头荷斯坦奶牛为研究对象,对FcRn受体α链基因(FCGRT)启动区采用PCR-SSCP方法进行多态性检测。结果表明,FCGRT基因启动区在P1、P2和P3引物扩增片段中存在PCR-SSCP多态性,位于引物P1扩增产物有AA、AB、BB 3种基因型,其频率分别为25.40%、59.26%、15.34%;引物P2扩增产物有CC、CD、DD 3种基因型,其频率分别为20.63%、56.61%、22.75%;引物P3扩增产物有EE、EF、FF 3种基因型,其频率分别为1.59%、12.17%、86.24%。经克隆测序分析,在3个片段上分别发生了T→C、C→A、G→T的碱基序列突变。经χ2适合性检验,除SNP1外,荷斯坦奶牛在该基因位点上的SNP2和SNP3均处于Hardy-Weinberg平衡状态。

关键词: 荷斯坦奶牛; FCGRT启动区; PCR-SSCP

Abstract: The PCR-SSCP polymorphisms of promoter of Fc receptor (FcRn) α chain (FCGRT) gene were studied in 189 Holstein cows. The results showed that PCR-SSCP polymorphisms were identified in promoter amplified fragment (P1,P2 and P3) of FCGRT gene. For the amplified fragment of P1, the genotype frequency of AA, AB and BB was 25.40%, 59.26% and 15.34%, respectively. For the amplified fragment of P2, the genotype frequency of CC,CD and DD was 20.63%, 56.61% and 22.75%, respectively. For the amplified fragment of P3,the genotype frequency of EE,EF and FF was 1.59%,12.17% and 86.24%, respectively.The sequencing analysis indicated that the polymorphisms were separately due to three single point mutation C to T, C to A and T to A at amplified fragment. Except for SNP1 in Holstein cows,the SNP2 and SNP3 sites in the populations were in a state of Hardy-Weinberg equlibrium.

Key words: Holstein dairy cows; FCGRT promoter; PCR-SSCP

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