The Rise of the CRISPR/Cpf1 System for Efficient Genome Editing in Plants

Front Plant Sci. 2020 Mar 31:11:264. doi: 10.3389/fpls.2020.00264. eCollection 2020.

Abstract

Cpf1, an endonuclease of the class 2 CRISPR family, fills the gaps that were previously faced in the world of genome engineering tools, which include the TALEN, ZFN, and CRISPR/Cas9. Other simultaneously discovered nucleases were not able to carry out re-engineering at the same region due to the loss of a target site after first-time engineering. Cpf1 acts as a dual nuclease, functioning as an endoribonuclease to process crRNA and endodeoxyribonuclease to cleave target sequences and generate double-stranded breaks. Additionally, Cpf1 allows for multiplexed genome editing, as a single crRNA array transcript can target multiple loci in the genome. The CRISPR/Cpf1 system enables gene deletion, insertion, base editing, and locus tagging in monocot as well as in dicot plants with fewer off-target effects. This tool has been efficiently demonstrated into tobacco, rice, soybean, wheat, etc. This review covers the development and applications of Cpf1 mediated genome editing technology in plants.

Keywords: CRISPR; Cas9; Cpf1; NHEJ; TALEN; ZFN; crRNA; endoribonuclease.

Publication types

  • Review