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A Rapid and Cost-Effective Method for Genotyping Genome-Edited Animals: A Heteroduplex Mobility Assay Using Microfluidic Capillary Electrophoresis
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Edité par CCSD ; Science Publishing Group -
International audience. The recent emergence and application of engineered endonucleases have led to the development of genome editing tools capable of rapidly implementing various targeted genome editions in a wide range of species. Moreover, these novel tools have become easier to use and have resulted in a great increase of applications. Whilst gene knockout (KO) or knockin (KI) animal models are relatively easy to achieve, there is a bottleneck in the detection and analysis of these mutations. Although several methods exist to detect these targeted mutations, we developed a heteroduplex mobility assay on an automated microfluidic capillary electrophoresis system named HMA-CE in order to accelerate the genotyping process. The HMA-CE method uses a simple PCR amplification of genomic DNA (gDNA) followed by an automated capillary electrophoresis step which reveals a heteroduplexes (HD) signature for each mutation. This allows efficient discrimination of wild-type and genome-edited animals down to the single base pair level.
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