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di-Potassium hydrogen phosphate

Company: Carl Roth
Catalog#: 5066
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Generation of Caenorhabditis elegans Transgenic Animals by DNA Microinjection
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2017-10-05
[Abstract]  Microinjection is the most frequently used tool for genetic transformation of the nematode Caenorhabditis elegans, facilitating the transgenic expression of genes, genome editing by the clustered regularly interspersed short palindromic repeats (CRISPR)-Cas9 system, or transcription of dsRNA for RNA intereference (RNAi). Exogenous DNA is delivered into the developing oocytes in the germline of adult hermaphrodites, which then generate transgenic animals among their offspring. In this protocol, we describe the microinjection procedure and the subsequent selection of transgenic progeny. [摘要]  显微注射是线虫秀丽隐杆线虫遗传转化中最常用的工具,促进基因的转基因表达,通过聚集的定期散布的短回文重复序列(CRISPR)-Cas9系统的基因组编辑或转录 dsRNA用于RNA干扰(RNAi)。 外源DNA被递送到成年雌雄同株的种系中的发育中的卵母细胞中,然后在它们的后代中产生转基因动物。 在该方案中,我们描述了显微注射程序和随后的转基因后代选择。
【背景】在C.通过显微注射的DNA转化通常用于产生过表达或异位表达可以与标签(例如,绿色荧光蛋白[GFP])融合的基因的转基因动物,允许突变体的表型拯救和/或蛋白质的定位和功能的分析(Carter等人,1990; Chalfie等人,1994; Mello和Fire,1995)。聚集的定期散布的短回文重复(CRISPR)-Cas9系统的出现需要显微注射以通过引入点突变或插入/缺失突变来实现高度特异性的基因组编辑(概述于Dickinson和Goldstein,2016)。此外,该技术被应用于dsRNA的可诱导和/或组织特异性转录以便于遗传性RNA干扰(RNAi)(Tavernarakis等人,2000) ...

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