华北农学报 ›› 2008, Vol. 23 ›› Issue (1): 7-11. doi: 10.7668/hbnxb.2008.01.002

所属专题: 小麦 生物技术

• 论文 • 上一篇    下一篇

小麦淀粉GBSSII基因的克隆、反义和RNAi载体的构建

康国章1, 肖向红1, 王永华1, 郭天财1, 朱云集1, 官春云1,2   

  1. 1. 河南农业大学, 河南 郑州 450002;
    2. 湖南农业大学, 湖南 长沙 461012
  • 收稿日期:2007-09-03 出版日期:2008-02-28
  • 通讯作者: 郭天财(1953-),男,河南济源人,教授,博导,主要从事小麦栽培生理研究。
  • 作者简介:康国章(1971-),男,河南伊川人,博士,主要从事作物分子生理研究。
  • 基金资助:
    中国博士后科学基金(20060390773);河南省教育厅自然科学基金(2006210007)

Molecular Cloning of Granule Bound Starch Synthase II Partial Sequence and Its Construction of Antisense and RNAi Expression Vectors

KANG Guo-zhang1, XIAO Xiang-hong1, WANG Yong-hua1, GUO Tian-cai1, ZHU Yunji1, GUAN Chun-yun1,2   

  1. 1. National Engineering Research Centre for Wheat, Henan Agricultural University, Zhengzhou 450002, China;
    2. Agronomy of Institute, Hunan Agricultural University, Changsha 461012, China
  • Received:2007-09-03 Published:2008-02-28

摘要: 采用RT-PCR方法从小麦品种豫教2号籽粒中克隆出颗粒型淀粉合成酶II基因(Granule bound starch syn-thase,GBSSII)部分cDNA片段(1 069 bp)(GenBank登录号:EF221764),同源性比较结果显示,它与GenBank上已报道的GBSSII基因有高度的同源性。以pWM101质粒为基础,构建了由35 S启动子调控的GBSSII基因的反义表达载体pWM101GBSSIIA;另外,还以pFGC5941质粒为基础,构建了GBSSII基因的RNAi载体pFGC5941GBSSIIsa,这些载体的构建为研究GBSSII基因的功能打下了很好的基础。

关键词: 普通小麦, 淀粉合成酶II基因, 表达载体

Abstract: Partial cDNA sequences(1 069 bp)of granule bound starch synthase II(GBSSII)gene(GenBank No.EF221761)was amplified from grains of common wheat cultuvar Yujiao 2 by RT2PCR in the paper. The result demonstrat2ed that the cloned GBSSII gene sequence had 95 % - 97 % identity with the reported GBSSII genes in GenBank. In addi2tion, its antisense expression(pWM101G BSSIIA)vector was constructed with pMW101 vector, and RNAi vector(pFGC5941G BSSIIsa)was also constructed with pFGC5941. These constructed vectors would provide a good backgroundfor investigting the function of GBSSII on biosynthesis of starch in wheat plants.

Key words: Common wheat(Triticum aestivum), GBSSII, Expression vecors

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引用本文

康国章, 肖向红, 王永华, 郭天财, 朱云集, 官春云. 小麦淀粉GBSSII基因的克隆、反义和RNAi载体的构建[J]. 华北农学报, 2008, 23(1): 7-11. doi: 10.7668/hbnxb.2008.01.002.

KANG Guo-zhang, XIAO Xiang-hong, WANG Yong-hua, GUO Tian-cai, ZHU Yunji, GUAN Chun-yun,. Molecular Cloning of Granule Bound Starch Synthase II Partial Sequence and Its Construction of Antisense and RNAi Expression Vectors[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(1): 7-11. doi: 10.7668/hbnxb.2008.01.002.

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