Technology Topics

This is a community blog to capture ongoing developments in and applications of insect genetic technologies.
IGTRCN participants are encouraged to post to this blog when they find a Technology Topic of interest.
Use the Submissions button at the bottom of this page and select Technology Topics or comment directly on existing posts.
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One-step recombination-mediated cassette exchange (RMCE) in Drosophila suzukii

Schetelig et al. (2018) describe a relatively efficient recombinase-mediated cassette exchange (RMCE) system for engineering the recently sequenced genome (Chiu et al., 2013) of the spotted wing drosophila, Drosophila suzukii, which is a significant pest of small and stone fruits. […]

CRISPR to go – a guide to gene editing Tephritid flies at remote facilities

Sim et al. (2018) recently published a paper in Insect Molecular Biology describing CRISPR/Cas 9 methods for gene editing in three genera of Tephritid fruit flies: Anastrepha, Bactrocera, and Ceratitis. CRISPR/Cas9 allows for targeted gene editing through homology driven repair […]

Whole-brain, Single Cell Activity Mapping in Transgenic Gryllus

Watanabe et al in eNeuro (2018) report their successful development of transgenic cricket Gryllus bimaculatus that bears a transcriptional reporter for whole-brain, single cell-resolution activity mapping. In order to construct a transcriptional reporter for activity mapping, it is critical to […]

Multiplexing gRNAs to Hedge Against Resistance to Gene Drive

Recently, Oberhofer et al (2018) published a paper examining the mechanisms of homing endonuclease gene drives in The Proceedings of the National Academy of Sciences. They used a novel nuclease-encoding cassette containing four multiplexed gRNAs targeting genes required for viability […]

HyperActive piggyBac Transposase for Transgenesis

Eckermann et al. (2018) recently published a report in Insect Biochemistry and Molecular Biology demonstrating the efficacy of hyperactive piggyBac transposase for creating transgenic insects, which may be of interest to researchers looking to initiate transgenic projects in ‘non-model’ insect […]

Improved HDR-Mediated Genome Editing

Jose Arturo Gutierrez-Triana and colleagues from Heidelberg University report in eLIFE a CRISPR/Cas9 based methodology that simultaneously decreases donor DNA multimerization and increases HDR single-copy integration. A common obstacle that CRISPR/Cas HDR mediated genome editing faces is the accurate and […]