Genetically engineered insects with sex-selection and genetic incompatibility enable population suppression
ELIFE(2021)
摘要
Engineered Genetic Incompatibility (EGI) is a method to create species-like barriers to sexual reproduction. It has applications in pest control that mimic Sterile Insect Technique when only EGI males are released. This can be facilitated by introducing conditional female-lethality to EGI strains to generate a sex-sorting incompatible male system (SSIMS). Here we demonstrate a proof of concept by combining tetracycline-controlled female lethality constructs with a pyramus -targeting EGI line in the model insect Drosophila melanogaster . We show that both functions (incompatibility and sex-sorting) are robustly maintained in the SSIMS line and that this approach is effective for population suppression in cage experiments. Further we show that SSIMS males remain competitive with wild-type males for reproduction with wild-type females, including at the level of sperm competition.
### Competing Interest Statement
MJS, MM, and SRD are cofounders and shareholders of NovoClade, Inc. MJS, MM, SRD, AU, and NRF are inventors of patents filed related to the SSIMS approach.
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关键词
genetic biocontrol,insect biotechnology,population suppression,engineered genetic incompatibility,D,melanogaster
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