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园艺学报 ›› 2009, Vol. 36 ›› Issue (8): 1177-1183.

• 蔬菜 • 上一篇    下一篇

哈密瓜ACC合成酶基因cDNA的克隆及全序列分析

丁群英1,3;张瑞2;廖新福2*;郭蔼光1,3*   

  1. (1 西北农林科技大学生命科学学院, 陕西杨凌712100; 2 新疆维吾尔自治区葡萄瓜果开发研究中心, 新疆鄯善838201; 3 西北农林科技大学陕西省农业分子生物学实验室, 陕西杨凌712100)
  • 收稿日期:2009-04-20 修回日期:2009-06-23 出版日期:2009-08-25 发布日期:2009-08-25
  • 通讯作者: 郭蔼光;廖新福

Cloning and Sequence Analysis of cDNA Encoding for ACC Synthase fromHami Melon

DING Qun-ying1,3;ZHANG Rui2;LIAO Xin-fu2*;GUO Ai-guang1,3*   

  1. (1 College of Life Science, NorthwestA & F University, Yangling, Shaanxi 712100, China; 2Xinjiang Developm ent and Research Center of Grapes and Melons, Shanshan, Xinjiang 838201, China; 3 Shaanxi Key Laboratory of Molecular Biology forAgriculture,Northwest A & F University, Yangling, Shaanxi 712100, China)
  • Received:2009-04-20 Revised:2009-06-23 Online:2009-08-25 Published:2009-08-25
  • Contact: GUO Ai-guang

摘要: 以新疆哈密瓜(Cucumis melo L. ) 幼叶为材料, 根据已报道的甜瓜ACC合成酶3(1-aminocyclopropane-1-carboxylic acid synthase, ACS) 基因片段设计特异引物, 采用RT-PCR和RACE (Rapid Amplification cDNA Ends, cDNA末端快速扩增) 等技术, 克隆得到编码哈密瓜CM e2ACS3基因的全长cDNA 序列,长1 895 bp, 编码482个氨基酸, 分子量约为54.12 kD, 等电点8.45, GenBank登录号为FJ383171。利用软件MEGA4构建进化树, 发现哈密瓜ACS3基因与黄瓜中的同类基因亲缘关系最近。哈密瓜CMe-ACS3基因的克隆及序列分析为认识此基因在甜瓜中的功能研究奠定基础。

关键词: 哈密瓜, ACC合成酶, RACE, 序列分析

Abstract: Specific primers were designed based on the reported partial sequence of melon (Cucumis melo L. ) ACS3 gene in the GenBank to clone the full-length cDNA of ACS3 gene in using RT-PCR and RACE methods. Its GenBank Accession No. is FJ383171. The length of Hamimelon ACS gene cDNA is 1 895 bp,
this gene encodes 482 amino acids, the putative molecularweight is 54.12 kD and its pI is 8.45. The phylogenetic trees constructed by software MEGA4 showed that ACS3 gene of hamimelon was closely related to that of Cucumis sativus. The cloning of ACS3 gene full-length cDNA from the Hami melon provides the basis for understanding the role of ACS3 gene in melon.

Key words: Hamimelon, ACC synthase, RACE, sequence analysis

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