knock-in

High Knock in/out Rates in Aedes aegypti Expressing Cas9 from a Transgene.

  Li et al have published some interesting data on the preprint server bioRΧiv regarding the creation and use of Aedes aegypti lines expressing an SpCas9 transgene in the germline.  The report substantial improvements in gRNA-mediated mutagenesis rates. Cas9 mediated […]

Enhancing Homology Repair-Mediated Genome Editing

In a recent paper in Nature Biotechnology, Richardson et al (2016) report on the interaction of target-site bound Cas9 and dCas9 on DNA strand accessibility- and have identified an optimized approach to increase homologous recombination (HR) mediated repair. They found […]

Synthetic gene drive system based on site specific DNA endonucleases (homing endonucleases, ZFN, TALENS, Cas9). Target sites and homology arms are chosen so that the endonuclease and associated genes (gRNA and other transgenes) are copied into homologous chromosomes.

An Overview of Gene Drive

Gantz and Bier reflect on and consider the implications of Cas9-based genome editing on genetics in a recent Bioessays that is worth reading if you are trying to keep up on this rapidly evolving part of the genetics ecosystem. Not […]

Plasmids for Rapid and Versatile Genome Editing

As is the case for many other organisms, CRISPR has rapidly become the method of choice for targeted genome modification in insects. Much of the method development has been taking place in the model organism Drosophila melanogaster, where, in little […]