中国水稻科学

• 研究报告 • 上一篇    下一篇

水稻柠檬酸合酶编码基因的初步研究

张珊珊1,2;明凤1,2,*;路群3;郭滨1,2;沈大棱1,2   

  1. 1复旦大学 生命科学学院 遗传学研究所; 遗传工程国家重点实验室,上海 200433; 2复旦大学 基因多样性与设计农业中心;生物多样性与生态工程教育部重点实验室, 上海 200433; 3上海师范大学 生命与环境科学学院, 上海 200234
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2005-11-10 发布日期:2005-11-10

Molecular Cloning and Characterization of Citrate Synthase Gene in Rice (Oryza sativa)

ZHANG Shan-shan , MING Feng , LU Qun , GUO Bin , SHEN Da-leng   

  • Received:1900-01-01 Revised:1900-01-01 Online:2005-11-10 Published:2005-11-10

摘要: 以粳稻cDNA为模板,设计一对特异性引物,获得编码水稻柠檬酸合酶基因的cDNA序列,全长为1470 bp,ORF区含475个氨基酸,推定蛋白序列与红葡萄、烟草、甜菜、拟南芥和柑橘等物种都有较高的同源性(>70%),氨基末端含一线粒体靶信号。Southern分析表明此基因在水稻基因组中具有多个拷贝数。经0.4 mmol/L IPTG诱导,根据Western印迹分析获得预测的蛋白大小为59 kD。

关键词: 水稻, 柠檬酸合酶, 基因, 克隆

Abstract: The full-length OsCS gene encoding citrate synthase was isolated from rice (Oryza sativa L. subsp.japonica). OsCS is 1470 bp long and encodes a polypeptide with 475 amino acids. Its putative protein sequence is high identical to Daucus carota, Nicotiana tabacum, Beta vulgaris subsp., Arabidopsis thaliana, and Citrus junos (>70%). The deduced amino- terminal sequence of OsCS showes characteristics of mitochondrial targeting signal. Southern blot analysis using ORF of the OsCS as probe indicated that this gene exists in multiple copies in rice genome. The band with predicated size of 59 kD was detected by Western blot after induced by 0.4 mmol/L IPTG.

Key words: rice, citrate synthase, gene, clone