食品科学 ›› 2019, Vol. 40 ›› Issue (6): 151-158.doi: 10.7506/spkx1002-6630-20180125-317

• 生物工程 • 上一篇    下一篇

基于CRISPR-Cas9系统的Saccharomyces cerevisiae基因删除

牛潇迪1,李天明1,刘金雷1,杨天勇1,李子怡2,冯惠勇1,*   

  1. 1.河北科技大学生物科学与工程学院,河北 石家庄 050018;2.马里兰大学帕克分校文理科学学院,美国 马里兰 20742
  • 出版日期:2019-03-25 发布日期:2019-04-02
  • 基金资助:
    “十二五”农村领域国家科技计划项目(2015BAD15B0501)

Gene Deletion in Saccharomyces cerevisiae Using CRISPR-Cas9 System

NIU Xiaodi1, LI Tianming1, LIU Jinlei1, YANG Tianyong1, LI Ziyi2, FENG Huiyong1,*   

  1. 1. College of Biological Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; 2. College of Arts and Sciences, College Park, University of Maryland, Maryland 20742, USA
  • Online:2019-03-25 Published:2019-04-02

摘要: 建立CRISPR-Cas9介导的在Saccharomyces cerevisiae双倍体细胞中进行基因敲除的方法。以can1基因敲除后的表型验证该CRISPR-Cas9系统的有效性,can1基因的失活效率达到4%。利用该系统又分别敲除了pdc、adh3、adh2、adh1、 pdh等基因,单基因编辑效率分别为4/48、3/48、1/48、3/28、1/16。确定了基因连续敲除的方法流程,pdc、adh3、adh2三个基因全部敲除,整个过程用时17 d。探索了双基因一次转化同时敲除的方法,将adh5、lip两个基因同时敲除用时6 d,基因编辑效率分别为9/32和10/32。

关键词: 酿酒酵母, CRISPR-Cas9, 基因组工程, 基因敲除

Abstract: In this study, CRISPR-Cas9-mediated gene knockout in diploid cells of Saccharomyces cerevisiae was investigated. The effectiveness of the CRISPR-Cas9 system was tested using the can1 knockout phenotype. The experimental results showed that the inactivation efficiency of can1 gene reached 4%. The pdc, adh3, adh2, adh1 and pdh genes were knocked out by this system, respectively, and the efficiency of gene editing was 4/48, 3/48, 1/48, 3/28 and 1/16, respectively. This study also developed a procedure for continuous gene knockout, and it took 17 days to knock out pdc, adh3, and adh2 using this procedure. It took 6 days to simultaneously disrupt adh5 and lip with 9/32 and 10/32 efficiencies, respectively.

Key words: Saccharomyces cerevisiae, CRISPR-Cas9, genome engineering, gene knockout

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