遗传 ›› 2007, Vol. 29 ›› Issue (8): 1018-1018―1022.doi: 10.1360/yc-007-1018

• 研究报告 • 上一篇    下一篇

应用RNAi技术培育抗TMV病毒转基因烟草

颜培强1; 白先权2; 万秀清1; 郭兆奎1; 李丽杰1; 公海英1; 储成才2   

  1. 1. 黑龙江省烟草科学研究所, 牡丹江157011;
    2. 中国科学院遗传与发育生物学研究所, 北京 100101

  • 收稿日期:2006-12-31 修回日期:2007-02-05 出版日期:2007-08-10 发布日期:2007-08-10
  • 通讯作者: 郭兆奎

Expression of TMV coat protein gene RNAi in transgenic tobacco plants confer immunity to tobacco mosaic virus infection

YAN Pei-Qiang1; BAI Xian-Quan2; WAN Xiu-Qing1; GUO Zhao-Kui1; LI Li-Jie1; GONG Hai-Ying1; CHU Cheng-Cai2   

  1. 1. Heilongjiang Tobacco Research Institute, Mudanjiang 157011, China;
    2. Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2006-12-31 Revised:2007-02-05 Online:2007-08-10 Published:2007-08-10
  • Contact: GUO Zhao-Kui

摘要:

利用烟草花叶病毒(TMV)外壳蛋白基因构建RNAi干涉载体, 通过叶盘法转化至烟草K326 和龙江911两个栽培品种。对转基因株系的荧光定量PCR分析表明, 不同转基因株系的病毒RNA靶序列都得到一定程度的降解, 抗病性鉴定结果证实, 转基因K326和龙江911两个栽培品种的转基因材料分别有83%和90%转基因株系对TMV呈现免疫级抗性。

关键词: TMV, 转基因烟草, RNAi

Abstract:

RNAi technique has been proved as a powerful tool for plant breeding. In this paper, the coat protein of tobacco mosaic virus (TMV) was used for constructing the RNAi interference vector. The tobacco varieties K326 and Longjiang 911 were transformed via Agrobacterium tumefaciens-mediated transformation, and transgenic plants were generated. The expression analysis with real-time PCR indicated that TMV RNA had been degraded varied in different transgenic lines. Field assay revealed that 83% and 90 % transgenic plants showed immunity resistance to TMV in K326 and Longjiang 911 re-spectively.