《中国畜牧兽医》 ›› 2017, Vol. 44 ›› Issue (7): 2065-2070.doi: 10.16431/j.cnki.1671-7236.2017.07.023

• 遗传繁育 • 上一篇    下一篇

山羊CLAⅠα链基因的克隆及生物信息学分析

邓阳, 吴国华, 颜新敏, 赵志荀, 李杨, 李健, 窦永喜, 张志东, 张强   

  1. 中国农业科学院兰州兽医研究所, 家畜疫病病原生物学国家重点实验室, 农业部畜禽病毒学重点实验室, 兰州 730046
  • 收稿日期:2016-12-02 出版日期:2017-07-20 发布日期:2017-07-22
  • 通讯作者: 吴国华, 张强 E-mail:wuguohua@caas.cn;qzhang1616@sohu.com
  • 作者简介:邓阳(1991-),男,甘肃酒泉人,硕士生,研究方向:兽医微生物及其分子生物学,E-mail:173235608@qq.com
  • 基金资助:

    甘肃省国际科技合作专项(1604WKCA012);甘肃省科技支撑计划(1504NKCA054-3);"十三五"国家重点研发计划(2016YFD0500907)

Cloning and Bioinformatic Analysis of Goats CLAⅠα Chain Gene

DENG Yang, WU Guo-hua, YAN Xin-min, ZHAO Zhi-xun, LI Yang, LI Jian, DOU Yong-xi, ZHANG Zhi-dong, ZHANG Qiang   

  1. Key Laboratory of Animal Virology of the Ministry of Agriculture, State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
  • Received:2016-12-02 Online:2017-07-20 Published:2017-07-22

摘要:

为探究山羊CLAⅠα链基因的多态性,本试验根据GenBank中山羊CLAⅠα链基因序列设计引物,采用RT-PCR技术从10个品系山羊白细胞中克隆山羊CLAⅠα链基因,测序后进行生物信息学分析。结果表明,CLAⅠα链基因长度为1 074 bp,编码357个氨基酸。经核苷酸序列分析发现,10个品系山羊CLAⅠα链基因同源性集中在82.8%~99.5%之间。将10个品系山羊CLAⅠα链基因核苷酸推导的氨基酸序列进行比对,发现突变集中在α1区域(22-110位氨基酸)与α2区域(111-203位氨基酸)。遗传进化分析表明,GenBank中山羊CLAⅠα链基因与红寺湖绒山羊、河西绒山羊、陕北绒山羊、阿尔巴斯绒山羊的CLAⅠα基因遗传关系较近,与其他6个品系山羊,即简阳大耳山羊、金堂黑山羊、西农萨能奶山羊、美姑山羊、大足黑山羊、努比亚山羊的CLAⅠα基因遗传关系较远。本试验结果为进一步研究CLAⅠα链基因的多态性奠定了理论基础。

关键词: 山羊; CLAⅠα 链基因; 克隆; 生物信息分析

Abstract:

In order to explore the polymorphism of goat CLAⅠα chain gene, the primers were designed according to goat CLAⅠα chain gene in GenBank. Goat CLAⅠα chain gene was amplified from white blood cells of ten varieties of goats by RT-PCR,then the sequences were analyzed by bioinformatics. The results showed that the length of CLAⅠα chain gene was 1 074 bp, which encoded 357 amino acids. The nucleotide sequence analysis indicated that the homology of CLAⅠα chain genes of ten varieties of goats was 82.8% to 99.5%. The deduced amino acid sequence analysis revealed that the mutations were concentrated in α1 region (22-110 amino acids) and α2 region (111-203 amino acids). Genetic evolution analysis showed that the goat CLAⅠα chain gene in GenBank was close to the CLAⅠα chain gene of HSH-goat, HX-goat,SB-goat and AEBS-goat on genetic relationship, but with far relation to other 6 breeds, including JYDE-goat, JTH-goat, XNSN-goat, MG-goat, DZH-goat and NBY-goat. This study laid a theoretical foundation for the further study on polymorphism of CLAⅠα chain gene.

Key words: goat; CLAⅠα chain gene; cloning; bioinformatics analysis

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