ArticleCommunications biology2024
Transgene removal using an in cis programmed homing endonuclease via single-strand annealing in the mosquito Aedes aegypti.
Article in Communications biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed.
- Split suppression gene drives reveal a design tradeoff between inheritance and reproductive load inbioRxiv : the preprint server for biology · 2026Article
- SSA-like and MMEJ-like recombination events in a transgenic construct with in-cis programmed self-eliminating components in different E. coli strains.BMC research notes · 2026Article
- Leveraging DNA repair mechanisms in genetically engineered biocontrol.Current opinion in insect science · 2026Review
- Microhomology-mediated end joining is the predominant form of DNA repair in the mosquito Aedes aegypti with implications for gene editing, gene drive, and transgene removal.Nucleic acids research · 2026Article
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
While gene drive strategies have been proposed to aid in the control of mosquito-borne diseases, additional genome engineering technologies may be required to establish a defined end-of-product-life timeline. We previously demonstrated that single-strand annealing (SSA) was sufficient to program the scarless elimination of a transgene while restoring a disrupted gene in the disease vector mosquito Aedes aegypti. Here, we extend these findings by establishing that complete transgene removal (four gene cassettes comprising ~8-kb) can be programmed in cis. Reducing the length of the direct repeat from 700-bp to 200-bp reduces, but does not eliminate, SSA activity. In contrast, increasing direct repeat length to 1.5-kb does not increase SSA rates, suggesting diminishing returns above a certain threshold size. Finally, we show that while the homing endonuclease Y2-I-AniI triggered both SSA and NHEJ at significantly higher rates than I-SceI at one genomic locus (P5-EGFP), repair events are heavily skewed towards NHEJ at another locus (kmo), suggesting the nuclease used and the genomic region targeted have a substantial influence on repair outcomes. Taken together, this work establishes the feasibility of engineering temporary transgenes in disease vector mosquitoes, while providing critical details concerning important operational parameters.
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Registered trials
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