Cas9

ReMOT Control Gene Editing is Expanded to Anopheles stephensi

Traditional genome editing in insects involves directly injecting embryos.  However, most insect embryos are small and sensitive to manipulation.  This makes germ-line modifications difficult to achieve.  Therefore, the recent development of a new gene editing approach based on injecting adult […]

Gene Editing Screwworms and Blowflies

Paolo et al. report the first successful use of CRISPR/Cas9 in the New World Screwworm fly, Cochliomyia hominivorax (C. hominivorax), a parasite of warm blooded animals including humans, as well as a CRISPR/Cas9 protocol for the Australian sheep blowfly, Lucilia […]

CRISPR/Cas9-Mediated NHEJ Mutations in Anastrepha suspensa Paves Way for HDR

In an a recent experiment published in Gene, Li and Handler (2019) utilized readily available study systems and newly emerging genetic technologies and demonstrated both germline and somatic CRISPR/Cas9 induced mutations in Anastrepha ludens. The creation of heritable mutations was […]

Heritable Gene Editing in Thermobia domestica

Ohde et al report the first successful development and use of CRISPR/Cas9 in the basally branching insect Thermobia domestica. By co-injecting Cas9 nuclease with sgRNA targeting a T. domestica ortholog of the Drosophila melanogaster white gene (Td-w), the authors created […]

Microinjection of the Sand Fly Lutzomyia longipalpis, a Vector for Leishmaniasis

Two recent papers, Jefferies et al (2018) and Martin-Martin et. al (2018), describe experiments to develop and optimise a sand fly microinjection protocol. There are 2 authors to this post: Alla Madich, Simon Collier, technical constraints on this website allow […]

Cas9 Orthologs with Minimal PAM Requirements

In their recent paper Chatterjee and colleagues (2018) describe a natural protospacer adjacent motif (PAM) plasticity of previously uncharacterized Cas9 endonuclease from Streptococcus canis (ScCas9).  Chatterjee et al (2018) report ScCas9’s affinity to minimal 5’-NNG-3’ PAM sequences and describe its accurate editing capabilities, […]