Resolving Mechanisms of Competitive Fertilization Success in Drosophila melanogaster
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- 16 April 2010
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 328 (5976) , 354-357
Abstract
Battle of the Sperm: In insects, sperm from multiple matings are stored and retained, and are thought to compete for ova within a female's reproductive tract. Manier et al. (p. 354 , published online 18 March) visualized sperm from fruit flies transgenically tagged with green or red fluorescent protein within the reproductive tracts of female flies. Sperm showed more mobility within the female storage organs than expected, with those from the most recent copulation displacing sperm from previous males; however, sperm viability remained consistent over long-term storage and each male's sperm was equally competitive in fertilizing the female's eggs.Keywords
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