中国畜牧兽医

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贵州黑山羊细胞因子诱导的SH2包含蛋白基因5′调控区SNP研究

蒋会梅,张义玲,张贵祥,曹娟   

  1. 贵州省毕节市畜牧技术推广站,贵州毕节  551700

  • 收稿日期:2013-12-20 出版日期:2014-07-20 发布日期:2014-08-21
  • 通讯作者: 张义玲,女,贵州人,学士,高级畜牧师,研究方向:动物遗传育种。E-mail:zzz9612@126.com
  • 作者简介:蒋会梅(1963—),女,贵州人,学士,高级畜牧师,研究方向:动物遗传育种。
  • 基金资助:

    应用分子育种技术培育贵州黑山羊和产业化示范(黔科合NY字(20123003号)。

Study on the SNP of 5′-flanking Region of CISH Gene in Guizhou Black Goat

JIANG Hui-mei, ZHANG Yi-ling, ZHANG Gui-xiang, CAO Juan   

  1. Animal Science and Technology Station of Guizhou, Bijie 551700, China

  • Received:2013-12-20 Online:2014-07-20 Published:2014-08-21

摘要: 本试验为改善贵州本地优良品种贵州黑山羊生长性能,寻找生长相关基因细胞因子诱导的SH2(Src-homology 2)包含蛋白(cytokine inducible SH2-containing protein, CISH)启动子区多态性位点,并研究其对启动子功能元件的影响。将贵州本地优良品种贵州黑山羊构建DNA池,直接测序筛选SNP位点,生物信息学软件预测核心启动子区域、转录因子、CpG岛。结果发现,CISH基因5′调控区存在1个SNP位点为G-95C,得到CISH基因核心启动子区和CpG岛,SNP位点导致附近转录因子新位点产生和原来结合位点消失,但并不改变CpG岛大小。CISH基因5′调控区存在1个对启动子功能元件有较大影响的SNP位点,研究结果为进一步确定CISH基因启动子功能奠定基础。

关键词: 贵州黑山羊; 细胞因子诱导的SH2包含蛋白; SNP; 启动子

Abstract: In order to improve the growth performance of Guizhou Black goat, the SNP site in the promoter region of CISH gene in goat was screened and the effect of SNPs on function elements of promoter was analyzed. Guizhou Black goat were selected to construct DNA pools, SNP site was screened by direct sequencing subsequently. Bioinformatics tools were used to predict the core region of the promoter, transfer factor and CpG island. 1 single nucleotide polymorphism(SNP) G-95C was found in the 5′-flanking region of CISH gene. Furthermore, the core region of the promoter and CpG island were obtained. It demonstrated that various novel transcription factors binding sites emerged while a large amount of transcription factors binding sites existed before disappeared based on the SNP found in this study, while it didn’t affect the range of CpG island dramaticlly by using various softwares. There was one SNP existed in the 5′-flanking region of CISH gene that had important effects on promoter elements. This study could lay the experimental foundation for the identification of function of CISH promoter.

Key words:

Guizhou Black goat; CISH; SNP; promoter