Acta Veterinaria et Zootechnica Sinica ›› 2021, Vol. 52 ›› Issue (4): 851-861.doi: 10.11843/j.issn.0366-6964.2021.04.001

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Advances in Evaluation of Livestock Breeding New Materials by Using the CRISPR/Cas9 Gene Editing Technology

WANG Huan, ZOU Huiying, ZHU Huabin, ZHAO Shanjiang*   

  1. Key Laboratory of Animal (Poultry) Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Received:2020-07-30 Online:2021-04-23 Published:2021-04-25

Abstract: The clustered regularly interspaced short palindromic repeats/CRISPR-associated (CRISPR/Cas) system is a genetic engineering technology that can precisely edit the genome of cells and organisms. Compared with the traditional ZFN and TALEN gene editing technologies,CRISPR/Cas has the advantages of slow cost, wide editing range, high target efficiency, simple operation and simultaneous support for multi-site operation. In recent years, the CRISPR/Cas system, especially the Type II and Type A CRISPR/Cas9 system, has been widely used as the latest generation of gene editing technology to improve the breeding efficiency, production performance, disease resistance and animal model construction of livestock, and created a batch of new genetically edited materials for cattle and sheep breeding. In this paper, we provide an overview of the development process, technological transformation, the latest progress in optimization of CRISPR/Cas, as well as research applications in livestock breeding traits, production traits and disease resistance traits, basic principles and applications of CRISPR/Cas9 system, and its latest applications and achievements in livestock breeding. The problems and application prospects of the CRISPR/Cas9-based gene-editing system in livestock breeding are also discussed briefly.

Key words: gene editing, CRISPR/Cas9, livestock breeding new materials

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