HDR

Drosophila melanogaster

standard Cas9 Expression Patterns Impact on Resistance Evolution in Different Genetic Backgrounds

Gene drive systems are sensitive to the evolution of resistance in the form of polymorphisms in the guide RNA’s target DNA sequence.  Champer et al. (2017) have recently reported on their exploration of how Cas9 expression patterns as well as […]

standard Dominant Maternal Effects Caused by CRISPR/Cas9

Expressing Cas9 and guide RNAs from transgenes integrated into the genome of organisms typically leads to higher rates of mutagenesis of the target gene compared to when those components are provided transiently by microinjection, for example. Lin and Potter describe […]

guide RNA relative to target sequence

standard Homology independent CRISPR Knock-ins

Lackner et al., in an effort to eliminate the need to synthesize multiple, unique homology based templates for Cas9-mediated homologous recombination, report the use of a universal donor template that will insert tags into potentially any genomic site in the human […]

standard CRISPR with Independent Transgenes or Mutagenic Chain Reaction for Creating Homozygotes in Lab?

In fall of 2014, two publications came from George Church’s group (Esvelt et al., 2014; Oye et al., 2014) postulating on the potential for the CRISPR/Cas9 system to be used as an autonomous gene drive for various pest management goals. […]