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中华绒螯蟹EsSox21b-like基因干扰载体的构建及原核表达制备dsRNA

, PP. 134-138

Keywords: 中华绒螯蟹,RNA干扰,L4440,HT115,原核表达,dsRNA

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Abstract:

Sox(SRY-relatedHMG-box)基因是一类重要的转录因子,在动物的性别分化与决定、器官的发生等方面具有重要的调控作用。旨在利用RNA干扰技术证实该基因的功能,将EsSox21b-like基因617bp的片段克隆至含有两个T7启动子的L4440载体上,构建了EsSox21b-like-L4440干扰载体,将该重组载体转化至RNaseⅢ缺陷型的HT115菌株中,经IPTG诱导菌株体内转录,获得了EsSox21b-like正义和反义单链RNA,经过变性、退火形成大量双链RNA(EsSox21b-like-dsRNA),能满足以后应用RNA干扰试验对于EsSox21b-like基因功能的研究。

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