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Position: Home > Articles > Identification and Bioinformatics Analysis of the EeDREB2 in Elytrigia elongate Chinese Agricultural Science Bulletin 2013 (15) 149-156

长穗偃麦草EeDREB2基因的克隆与生物信息学分析

作  者:
孙珊珊;杨涛;柳珊;陈京瑞;赵昌平;唐益苗;高世庆
单  位:
北京农学院植物科学技术学院;首都师范大学生命科学学院;北京杂交小麦工程技术研究中心
关键词:
长穗偃麦草;EeDREB2;基因克隆;系统进化分析;亚细胞定位
摘  要:
为了进一步研究EeDREB2基因的结构和功能特点并为转基因小麦挖掘有效的候选基因,应用同源克隆的方法从长穗偃麦草中克隆出EeDREB2基因,通过生物信息学的手段对EeDREB2基因进行初步的分子特征分析。结果显示,该基因全长1035bp,编码344个氨基酸,理论上的等电点为4.85,分子量为37485.49Da,属于亲水性蛋白,有20个磷酸化位点。亚细胞定位预测显示EeDREB2基因定位在细胞核中,表达谱分析预测表明EeDREB2在根、茎、叶、花、种子中都表达,其中叶中表达量最高。同源性分析发现,EeDREB2与TaDREB4B同源性最高。EeDREB2基因的克隆为转基因小麦的抗逆性研究提供了有效资源。
译  名:
Identification and Bioinformatics Analysis of the EeDREB2 in Elytrigia elongate
作  者:
Sun Shanshan 1,Yang Tao 2,Liu Shan 3,Chen Jingrui 3,Zhao Changping 3,Tang Yimiao 3,Gao Shiqing 3 (1 College of Life Science,Capital Normal University,Beijing 100048;2 College of Plant Science and Technology,Beijing University of Agriculture,Beijing 102206;3 Beijing Engineering and Technique Research Center of Hybrid Wheat,Beijing 100097)
关键词:
Elytrigia elongate;EeDREB2;gene cloning;phylogenetic analysis;subcellular localization
摘  要:
In order to reveal the structure and functional characteristics of EeDREB2,and provide important candidate genes for transgenic wheat,the cDNA of EeDREB2 was cloned in Elytrigia elongate.The results showed that the cDNA of EeDREB2 was 1035 bp and encoded 344 amino acids,encoding a hydrophilic amino acid with 20 phosphorylation site.The iso-electric point and the molecular weight was 4.85 and 37485.49 Da.Subcellular localization predicted EeDREB2 gene located in the nucleus.Gene expression profile analysis found that EeDREB2 gene expressed in roots,stem,leaf,flowers,seeds,and was more highly expressed in leaf.The homology analysis showed that EeDREB2 shared high homology to TaDREB4B.The cloning of the EeDREB2 gene provided effective resources to resistance research of transgenic wheat.

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