China Animal Husbandry and Veterinary Medicine ›› 2025, Vol. 52 ›› Issue (2): 545-553.doi: 10.16431/j.cnki.1671-7236.2025.02.005

• Biotechnology • Previous Articles    

Advances in Application of CRISPR-Cas Technology in the Detection of Animal Pathogenic Microorganisms

YUAN Qing1, MENG Ru2, LI Guoping3, ZHANG Rui1   

  1. 1. College of Animal Science and Veterinary Medicine of Southwest Minzu University, Chengdu 610041, China;
    2. Xining City Animal Disease Prevention and Control Center, Xining 810016, China;
    3. Datong County Animal Husbandry and Veterinary Station, Xining 810199, China
  • Revised:2024-07-17 Published:2025-01-24

Abstract: Animal infectious diseases are one of the most serious types of diseases that jeopardize the aquaculture industry,not only causing a large number of animal deaths and the loss of their products but also posing a major threat to human health.Therefore,rapid,accurate and inexpensive pathogen detection methods are of great significance for the prevention and control of animal infectious diseases.The clustered regularly interspaced short palindromic repeats (CRISPR) and associated proteins (Cas) system is a sensitive and specific biological system that can rapidly recognize pathogen-specific nucleic acid that plays an important role in the prokaryotic immune system.Pathogen detection methods based on the CRISPR-Cas system have the advantages of high specificity,high sensitivity and convenient operation,and have good prospects for application in the rapid detection of animal pathogenic microorganisms.The authors systematically introduced the type Ⅱ (cas9),type Ⅴ (cas12a,cas12b and cas14a) and type Ⅵ (cas13a) CRISPR-Cas systems,briefly described their working principles and application of NASBA-CRISPR,CAS-EXPAR,CASLFA,DETECTR,CORDS,HOLMESv2,SHERLOCK,SHERLOCKv2 and DETECTR-Cas14 established based on the CRISPR-Cas system in the detection of animal pathogenic microorganisms,and analyzed the problems faced by the CRISPR-Cas system in the detection of animal pathogens,including the impact of factors such as the specificity of the crRNA,the coupling with amplification technology,sample collection and transportation methods on quantitative detection,and proposed some solutions,aiming to provide a more in-depth understanding of the application of CRISPR-Cas technology in the detection of animal pathogenic microorganisms.

Key words: pathogenic microorganisms; CRISPR-Cas; pathogen detection; application

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