AN IMPROVED SITE-DIRECTED MUTAGENESIS PROCEDURE AND APPLICATION FOR IDENTIFICATION OF MUTANT CLONES
文献类型： 外文期刊
作者： Li, Chunyu 1 ; Sun, Qingming 1 ; Chen, Shi 1 ; Deng, Guiming 1 ; Zuo, Cunwu 1 ; Ye, Qian 1 ; Yang, Jing 1 ; Yi, Ganjun 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Inst Fruit Tree Res, Guangzhou, Guangdong, Peoples R China; Minist Agr China, Key Lab S Subtrop Fruit Biol & Genet Resource Uti, Guangzhou, Guangdong, Peoples R China
关键词： OE-PCR;SI nuclease;site-directed mutagenesis
期刊名称：BIOTECHNOLOGY & BIOTECHNOLOGICAL EQUIPMENT （ 影响因子：1.632； 五年影响因子：2.029 ）
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收录情况： SCI
摘要： A number of molecular tools have been developed to study pathogenicity in fungal phytopathogens, including Fusarium species. Here, we reported an improved method for site-directed mutagenesis to create constructs for using in the analysis of fungal gene function. The procedure combining overlap-extension PCR (OE-PCR) with SI nuclease mismatch cleavage, which we refer to as OE-PCR-S1, is more time- and labor-efficient. We tested our method by deleting three bases from the pathogenic gene Fowl (EU795421) and the resulting mutant DNA was inserted into an expression vector before transformation into Foc for functional domain analysis. The overall rate of mutant site production was 100% and the entire process was completed in less than two days. These results demonstrate that this method is a powerful tool for studying the functions of pathogenic genes and genetic engineering.
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