Anopheles arabiensis Sperm Production After Genetic Manipulation, Dieldrin Treatment, and Irradiation

Anopheles arabiensis Sperm Production After Genetic Manipulation, Dieldrin Treatment, and Irradiation

The use of the sterile insect technique relies on the release of sterilized mass-reared male insects which, before field releases, endure several unnatural treatments. In the case of Anopheles arabiensis (Patton) sterile insect technique program in Sudan, the genetic background of the original strai...

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Veröffentlicht in:Journal of medical entomology 2013-03, Vol.50 (2), p.314-316
Hauptverfasser: Damiens, D, Vreysen, MJB, Gilles, JRL
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Anopheles arabiensis
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Gilles, JRL
description The use of the sterile insect technique relies on the release of sterilized mass-reared male insects which, before field releases, endure several unnatural treatments. In the case of Anopheles arabiensis (Patton) sterile insect technique program in Sudan, the genetic background of the original strain was first changed to create a genetic sexing strain that is based on a dieldrin-resistant mutation. Secondly, the eggs of the genetic sexing strain require treatment with dieldrin to allow complete elimination of female Ll larvae to enable the release of males only. Finally, male mosquitoes receive an irradiation dose of 70 Gy as pupae for sterilization. The effects of these treatments on sperm production were tested separately and in combination. Irradiation alone significantly decreased the initial sperm number and prevented new sperm production. However, the dieldrin treatment, aimed at eliminating females, appears to have an unexpected radioprotectant effect.
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source Oxford University Press Journals All Titles (1996-Current)
subjects Anopheles arabiensis
title Anopheles arabiensis Sperm Production After Genetic Manipulation, Dieldrin Treatment, and Irradiation
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