Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (20): 26-34.doi: 10.11924/j.issn.1000-6850.casb2020-0728

Special Issue: 生物技术

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CRISPR/Cas9 System and Its Research Progress in Grain and Oil Crop Genetic Improvement

Gao Zhongkui1(), Jiang Jing2, Han Zhuqiang2, Huang Zhipeng2, Xiong Faqian2, Tang Xiumei2, Wu Haining2, Zhong Ruichun2, Liu Jing2, Tang Ronghua2, He Liangqiong2()   

  1. 1Scientific Research Base Management Office, Guangxi Academy of Agricultural Sciences, Nanning 530007
    2Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007
  • Received:2020-11-30 Revised:2021-05-10 Online:2021-07-15 Published:2021-08-06
  • Contact: He Liangqiong E-mail:48263823@qq.com;heliangqiong@163.com

Abstract:

CRISPR is a kind of natural immune system, which is produced by bacteria or archaea through nucleic acid specific recognition and cas9 protease cleavage, when viruses invade the bacteria or archaea. The genome editing technology based on CRISPR/cas9 system could realize the targeted editing of target genes through sgRNA mediation and cas9 protein cutting. Because of its simple operation, high editing efficiency and wide application range, the technology has rapidly become an important means to study the gene functions of plants, animals and microorganisms. At the same time, with the wide establishment of the large number of genomic information and corresponding databases, CRISPR/Cas9 technology has become a new and very effective way to promote genetic improvement and create special germplasm by using reverse genetics and bio-information technology. In this paper, the basic principle of CRISPR/Cas system, the mechanism of CRISPR/cas9 gene editing technology, the genetic improvement and variety breeding progress of grain and oil crops by using the technology were reviewed. The study could provide effective references for genetic improvement and variety optimization.

Key words: CRISPR/cas9, genomic sequencing, gene editing, grain and oil crop, genetic improvement, research progress

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