Rapid Screening of CRISPR/Cas9-Induced Mutants Using the ACT-PCR Method
The clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9) system provides a technological breakthrough in targeted mutagenesis. However, a significant amount of time and cost is required to screen for the CRISPR/Cas9-induced mutants from a typically large number of initial samples. Here, we describe a cost-effective and sensitive screening technique based on conventional polymerase chain reaction (PCR), termed “annealing at critical temperature PCR” (ACT-PCR), for identifying mutants. ACT-PCR requires only a single PCR step followed by agarose gel electrophoresis. The simplicity of ACT-PCR makes it particularly suitable for rapid, large-scale screening of CRISPR/Cas9-induced mutants.
Key wordsACT-PCR CRISPR/Cas9 Genome editing Mutant screening Rapid Large-scale Cost-effective
This work was supported by the National Natural Science Foundation of China (Nos. 31271681 and 31401363) and the Agricultural Science and Technology Innovation Program of the Chinese Academy of Agricultural Sciences.