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园艺学报 ›› 2009, Vol. 36 ›› Issue (6): 885-890.

• 研究简报 • 上一篇    下一篇

百合无症病毒CP基因的克隆及其RNA i载体的构建

徐品三1*;尹雅蕾1;李玉花2   

  1. (1大连理工大学环境与生命学院, 辽宁大连116024; 2东北林业大学生命科学学院, 哈尔滨150040)
  • 收稿日期:2009-01-19 修回日期:2009-05-11 出版日期:2009-06-25 发布日期:2009-06-25
  • 通讯作者: 徐品三

Cloning of Lily symptomless virus CP Gene and Construction of Its RNAi Vector

XU Pin-san1*,YIN Ya-lei1, and LI Yu-hua2   

  1. (1School of Environm ental and B iological Science and Technology, Dalian University of Technology, Dalian, L iaoning 116024,China; 2College of Life Sciences, Northeast Forestry University, Harbin 150040, China)
  • Received:2009-01-19 Revised:2009-05-11 Online:2009-06-25 Published:2009-06-25
  • Contact: XU Pin-san

摘要: 以感染百合无症病毒(LSV) 的百合叶片总RNA为模板, 利用反转录聚合酶链式反应(RT2
PCR) 扩增出了876 bp的LSV CP基因, 经Blast比对发现该片段与GenBank上发表的LSV CP基因序列高度同源, 同源率98% , 由该序列推导出的氨基酸序列相似性达到98%。应用Gateway技术将扩增的片段通过BP反应连接到入门载体pDONR201, 并进行序列测定, 再通过LR反应将目的片段插入到RNAi植物表达载体pH7GW IWG2 ( Ⅱ) , 成功构建了适合农杆菌介导的百合转化的RNAi载体。

关键词: 百合, 无症病毒, CP基因, 克隆载体, RNA干扰, Gateway技术

Abstract: A fragment of 876 bp of Lily symptomless virus (LSV) CP gene cDNA sequence was amp lified by reverse transcrip tion polymerase chain reaction (RT-PCR) from the total RNA infected lily leaves. The Blast result showed that the sequence p resented a very high match with the LSV CP genes in the GenBank and its homology was 98%. The amino acid sequence was 98% homologus. Using Gateway technology, a entry clone vector (pDONR201) was constructed through the way of BP cloning and a RNA interference (RNAi) transformation vector (pH7GW IWG2) was constructed through the way of LR cloning. The RNAi vector was obtained and could be transformed into lily by Agrobacterium tum efaciens.

Key words: lily, Lily symptomless virus, CP gene, cloning vector, RNA interference, Gateway technology

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