草地学报

草地学报 ›› 2017, Vol. 25 ›› Issue (1): 100-106.DOI: 10.11733/j.issn.1007-0435.2017.01.015

• 研究论文 • 上一篇    下一篇

白三叶化感作用相关基因CHS的克隆及生物信息学分析

吴榕1, 郑国华2, 郝玉兰1   

  1. 1. 内蒙古师范大学生命科学与技术学院, 内蒙古 呼和浩特 010022;
    2. 呼和浩特市蔬菜技术推广站, 内蒙古 呼和浩特 010070
  • 收稿日期:2016-06-02 修回日期:2016-08-12 出版日期:2017-02-15 发布日期:2017-05-06
  • 通讯作者: 郑国华,E-mail:863323145@qq.com
  • 作者简介:吴榕(1972-),男,内蒙古呼和浩特人,博士,主要从事植物生理学相关研究,E-mail:wurong197218@126.com
  • 基金资助:

    内蒙古师范大学高层次人才科研启动经费项目（2014YJRC041）资助

Cloning and Bioinformatics Analysis of White Clover Allelopathy Related Genes CHS

WU Rong1, ZHENG Guo-hua2, HAO Yu-lan1   

  1. 1. College of Life and Technology Science, Inner Mongolia Normal University, Hohhot, Inner Mongolia 010022, China;
    2. Hohhot Vegetables Technology Promotion Stations, Hohhot, Inner Mongolia 010070, China
  • Received:2016-06-02 Revised:2016-08-12 Online:2017-02-15 Published:2017-05-06

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摘要：

白三叶（Trifolum repens）化感物质中含有多种化学成份，主要含有酚类与萜类及黄酮类物质，而查尔酮合成酶（CHS）是类黄酮途径的第一限速步骤，对于黄酮类物质的合成至关重要。本试验从白三叶中克隆了CHS基因cDNA序列，并对白三叶CHS基因进行了生物信息学分析。结果表明克隆到的CHS基因全长cDNA序列1473 bp，其中包含了1170 bp的开放阅读框（ORF），起始密码子为ATG，终止密码子为TAA，103 bp的5'UTR和200 bp 3'UTR编码389氨基酸。且白三叶的CHS基因与同属于豆科的苜蓿CHS、大豆CHS、鹰嘴豆CHS和豌豆CHS亲缘关系最近，处于同一分支，这与植物分类相一致。

关键词: 白三叶, 化感作用, CHS基因, cDNA全长克隆, 生物信息学分析

Abstract:

There was a variety of chemical compositions in allelochemicals of White clover(Trifolium repens L.), which mainly contains phenols, terpenoids and flavonoids, while chalcone synthase (CHS) is the first rate-limiting step of the flavonoid pathway which is essential for flavonoids synthesis. In this study, the full-length CHS gene in white clover was cloned and was analyzed in bioinformatics. The results showed that the cloned full-length cDNA sequence of CHS gene was 1473 bp, which contains an open reading frame (ORF) of 1170 bp(the start codon was ATG, termination codon was TAA), 103 bp 5'UTR and 200 bp 3'UTR. CHS gene in white clover and that in other legume plant alfalfa, soybean, chickpeas and peas had closest relationship and was in the same branch, which is consistent with plant classification.

Key words: White clover, Allelopathy, CHS gene, Full-length cDNA cloning, Bioinformatics analysis

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