Mating competitiveness of male Anopheles arabiensis mosquitoes irradiated with a partially or fully sterilizing dose in small and large laboratory cages

Journal of Medical Entomology
Michelle E H Helinski, Bart G J Knols

Abstract

Male mating competitiveness is a crucial parameter in many genetic control programs including the sterile insect technique (SIT). We evaluated competitiveness of male Anopheles arabiensis Patton as a function of three experimental variables: (1) small or large cages for mating, (2) the effects of either a partially sterilizing (70 Gy) or fully sterilizing (120 Gy) dose, and (3) pupal or adult irradiation. Irradiated males competed for females with an equal number of unirradiated males. Competitiveness was determined by measuring hatch rates of individually laid egg batches. In small cages, pupal irradiation with the high dose resulted in the lowest competitiveness, whereas adult irradiation with the low dose gave the highest, with the latter males being equal in competitiveness to unirradiated males. In the large cage, reduced competitiveness of males irradiated in the pupal stage was more pronounced compared with the small cage; the males irradiated as adults at both doses performed similarly to unirradiated males. Unexpectedly, males irradiated with the high dose performed better in a large cage than in a small one. A high proportion of intermediate hatch rates was observed for eggs collected in the large cage experiments wit...Continue Reading

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Citations

May 14, 2014·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Austin Burt
Jun 4, 2014·Malaria Journal·Binh V LeRichard H G Baxter
Nov 27, 2014·Malaria Journal·Hamidou MaïgaJeremie R L Gilles
Dec 16, 2009·Malaria Journal·Alan S RobinsonJorge Hendrichs
Dec 16, 2009·Malaria Journal·Michelle E H HelinskiBart G J Knols
Aug 5, 2011·The American Journal of Tropical Medicine and Hygiene·Luca FacchinelliThomas W Scott
Aug 11, 2011·PLoS Neglected Tropical Diseases·Eric W ChambersStephen L Dobson
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Jul 27, 2021·Frontiers in Microbiology·Dongjing ZhangKostas Bourtzis
Oct 6, 2021·Proceedings of the National Academy of Sciences of the United States of America·Nigel W BeebeScott A Ritchie

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