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复叶械FtsZ基因的克隆、RNA干扰载体的构建及其在烟草中瞬时表达

Keywords: 复叶械,RNA干扰,重组病毒载体

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Abstract:

利用简并引物RT-PCR,克隆复叶槭FtsZ基因的cDNA序列,利用马铃薯X组病毒载体pgR107,构建RNA干扰重组病毒载体pVX-AnFtsZi,并转化农杆菌GV3101(含辅助质粒pJIC Sa-rep)侵染烟草.40 d后,检测烟草内源FtsZ基因的表达量.研究结果表明:从复叶械中克隆到的569bpFtsZ基因cDNA片段,具有FtsZ蛋白的核心功能序列GGGTGSG.构建的hpRNA型RNA干扰载体抑制了FtsZ基因的表达.为培育槭树类彩叶新品种奠定分子理论基础.

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