畜牧兽医学报 ›› 2016, Vol. 47 ›› Issue (3): 457-466.doi: 10.11843/j.issn.0366-6964.2016.03.006

• 遗传繁育 • 上一篇    下一篇

山羊STAT3基因克隆、生物信息学分析及甲基化修饰研究

贾文超1# ,刘亮亮2# ,吴贤锋1,赵钊艳1,王珂1,王毛1,高静1,王立强1,陈宏1,潘传英1,蓝贤勇1*   

  1. (1.西北农林科技大学 动物科技学院生命科学学院,陕西省农业分子生物学重点实验室,杨凌 712100;2.江苏科技大学 计算机科学与工程学院,镇江 212003)
  • 收稿日期:2015-03-30 出版日期:2016-03-23 发布日期:2016-03-23
  • 通讯作者: 蓝贤勇,博士,副教授,硕士生导师,主要从事动物遗传育种与表观遗传修饰研究,E-mail:lanxianyong79@nwsuaf.edu.cn
  • 作者简介:贾文超(1990-),男,土族,青海门源人,硕士生,主要从事动物遗传学研究,E-mail:jiawenchaozyq@163.com;刘亮亮(1979-),男,江西萍乡人,博士,讲师,主要从事计算机软件与信息分析,E-mail:lingyun79626@126.com。贾文超和刘亮亮为并列第一作者
  • 基金资助:

    国家自然科学基金(31172184);陕西省留学人员科技活动择优资助项目(2014-14);西北农林科技大学大学生创新性实验计划(2013)

Molecular Cloning,Bioinformatics Analysis and Methylation Modification of Goat STAT3 Gene

JIA Wen-chao1# ,LIU Liang-liang2# ,WU Xian-feng1,ZHAO Zhao-yan1,WANG Ke1,WANG Mao1,GAO Jing1,WANG Li-qiang1,CHEN Hong1,PAN Chuan-ying1,LAN Xian-yong1*   

  1. (1.Shaanxi Key Laboratory of Molecular Biology for Agriculture,College of Animal Science and TechnologyCollege of Life Sciences,Northwest A&F University,Yangling 712100,China;2.Computer Science and Engineering School of Just,Jiangsu University of Science and Technology,Zhenjiang 212003,China)
  • Received:2015-03-30 Online:2016-03-23 Published:2016-03-23

摘要:

本研究利用RT-PCR、TA克隆和重亚硫酸盐测序(BSP)等方法,旨在克隆、分析山羊STAT3基因完整编码区,并解析该基因甲基化修饰水平及其与体重的关系。结果表明,山羊STAT3基因编码区全长2 313 bp,编码770个氨基酸;与绵羊、牛、野猪、小鼠、大鼠和人的氨基酸序列一致性分别为99.7%、99.6%、99.4%、99.2%、99.4%和99.5%。山羊高体重组与低体重组之间甲基化差异研究发现,高体重组STAT3基因启动子区甲基化水平显著高于低体重组(P=0.020),提示该基因甲基化修饰对体重具有显著影响,可作为标记辅助选择(MAS)的有效表观遗传标记。这些结果为研究山羊肉用性能的遗传与表观遗传机制提供了科学资料。

Abstract:

The aim of this study was to clone and analyze the entire coding sequence of goat STAT3 gene as well as to detect the STAT3 gene methylation modification and analyze its association with goat body weight using reverse transcription-polymerase chain reaction(RT-PCR),TA cloning,bioinformatics and bisulfite sequencing(BSP) methods.The results showed that the entire coding sequence of goat STAT3 gene was 2 313 bp in length,and encoded 770 amino acids.The shared amino acid sequence consistency between goat(capra hircus) and sheep(Ovis aries),bovine(Bos Taurus),boar(Sus scrofa),mouse(Mus musculus),rat(Rattus norvegicus),human(Homo sapiens) were 99.7%,99.6%,99.4%,99.2%,99.4%,99.5%,respectively.The analysis of the methylation difference in the promoter region of goat STAT3 gene between high body weight group and low body weight group demonstrated that the goats with high body weight had higher methylation level than those goats with low body weight(P=0.020).This finding indicated that the methylation modification of STAT3 gene had significant effect on body weight in goat,which could become the epigenetic marker in marker-assisted selection(MAS).These results would provide scientific data for studying genetic and epigenetic mechanism for meat production in goat.

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