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A Simple and Efficient CRISPR/Cas9 System Using a Ribonucleoprotein Method for Flammulina filiformis

文献类型： 外文期刊

作者： Liu, Jianyu 1 ; Cui, Haiyang 2 ; Wang, Ruijuan 1 ; Xu, Zhen 1 ; Yu, Hailong 1 ; Song, Chunyan 1 ; Lu, Huan 1 ; Li, Qiaozhen 1 ; Xing, Danrun 2 ; Tan, Qi 1 ; Sun, Weiming 2 ; Zou, Gen 1 ; Shang, Xiaodong 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Natl Engn Res Ctr Edible Fungi, Inst Edible Fungi, Shanghai 201403, Peoples R China

2.Hebei Normal Univ Sci & Technol, Coll Marine Resources & Environm, Qinhuangdao 066004, Peoples R China

关键词： Flammulina filiformis; CRISPR; Cas9; genomic editing; RNPs; pyrG

期刊名称：JOURNAL OF FUNGI （ 影响因子：5.724； 五年影响因子：6.413 ）

ISSN：

年卷期： 2022 年 8 卷 10 期

页码：

收录情况： SCI

摘要： CRISPR/Cas9 systems were established in some edible fungi based on in vivo expressed Cas9 and guide RNA. Compared with those systems, the in vitro assembled Cas9 and sgRNA ribonucleoprotein complexes (RNPs) have more advantages, but only a few examples were reported, and the editing efficiency is relatively low. In this study, we developed and optimized a CRISPR/Cas9 genome-editing method based on in vitro assembled ribonucleoprotein complexes in the mushroom Flammulina filiformis. The surfactant Triton X-100 played a critical role in the optimal method, and the targeting efficiency of the genomic editing reached 100% on a selective medium containing 5-FOA. This study is the first to use an RNP complex delivery to establish a CRISPR/Cas9 genome-editing system in F. filiformis. Moreover, compared with other methods, this method avoids the use of any foreign DNA, thus saving time and labor when it comes to plasmid construction.

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