Genome editing in the nematode Caenorhabditis briggsae using the CRISPR/Cas9 system

Author:

Culp Elizabeth1,Richman Cory1,Sharanya Devika1,Jhaveri Nikita1,van den Berg Wouter1,Gupta Bhagwati P1ORCID

Affiliation:

1. Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S-4K1, Canada

Abstract

AbstractThe CRISPR/Cas system has recently emerged as a powerful tool to engineer the genome of an organism. The system is adopted from bacteria where it confers immunity against invading foreign DNA. This work reports the first successful use of the CRISPR/Cas system in Caenorhabditis briggsae (a cousin of the well-known nematode C. elegans), to generate mutations via non-homologous end joining. We recovered deletion alleles of several conserved genes by microinjecting plasmids that express Cas9 endonuclease and an engineered CRISPR RNA corresponding to the DNA sequence to be cleaved. Evidence for somatic mutations and off-target mutations are also reported. Our approach allows for the generation of loss-of-function mutations in C. briggsae genes thereby facilitating a comparative study of gene function.

Publisher

Oxford University Press (OUP)

Subject

General Agricultural and Biological Sciences,General Biochemistry, Genetics and Molecular Biology

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