CRISPR-based Breakthrough: A New Self-Limiting Genetic Tool to Control the Mediterranean Fruit Fly
22 Apr 2025
A team of researchers from Imperial College London, UC San Diego, and Peking University has unveiled a major step forward in genetic pest control. Their recent publication in BMC Biology introduces a novel, self-limiting genetic system for managing populations of the Mediterranean fruit fly (Ceratitis capitata) — one of the world’s most damaging agricultural pests.
In the study, REACT researchers developed and tested a precision genetic tool called SCIC (Sex Conversion Induced by CRISPR), a split-CRISPR/Cas9 system designed to selectively induce female-to-male sex conversion in medflies. The result: all offspring carrying the system are either sterile males or sterile intersexes, eliminating the need for manual sex-sorting or reliance on irradiation-based sterilisation.
This work builds on REACT’s broader mission to innovate sustainable pest management solutions and reduce pesticide dependence in agriculture.
Hear from the Researcher Herself
In this interview, PhD researcher Serafima Davydova discusses her work on genetic sexing strains in the Mediterranean fruit fly and its link to REACT’s mission. Her research spans CRISPR toolkits and sex conversion breakthroughs, laying the foundation for next-gen SIT. REACT uses such innovations to develop scalable, sustainable pest control with input from farmers and regulators.
🔗 Read the full article here:
“A self-limiting sterile insect technique alternative for Ceratitis capitata”
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