Biotechnology Bulletin ›› 2020, Vol. 36 ›› Issue (11): 209-221.doi: 10.13560/j.cnki.biotech.bull.1985.2020-0328

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Application and Prospect of Gene Editing Technology in Crop Breeding

LI Shu-lei(), ZHENG Hong-yan, WANG Lei()   

  1. Biotechnology Research Institute,Chinese Academy of Agricultural Sciences,Beijing 100081
  • Received:2020-03-25 Online:2020-11-26 Published:2020-11-20
  • Contact: WANG Lei E-mail:lishuleilsl@163.com;wanglei01@caas.cn

Abstract:

Genome editing is a group of technologies that allows the introduction of deletions,insertions or base substitutions by causing damage in targeted gene locus. This technology has now been utilized widely for editing the genome of various organisms,including bacteria,fungus,animals and plants. Compared to the Zinc-finger nucleases(ZFNs)and Transcription activator-like effectors nucleases(TALENs)editors,clustered regularly interspersed short palindromic repeats(CRISPR)/ CRISPR-associated protein(Cas)(CRISPR/Cas)system has developed as an efficient and versatile method for genome engineering. In this review,we describe the basic mechanism of ZFNs,TALENs and CRISPR/Cas system,and summarize the functions,limitation and application of CRISPR/Cas system in crop breeding. Finally,we discuss the potential challenges and opportunities of genome-edited crops in the future.

Key words: gene editing technology, CRISPR/Cas, crop breeding