Journal
JOURNAL OF INSECT PHYSIOLOGY
Volume 58, Issue 3, Pages 413-419Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jinsphys.2012.01.004
Keywords
Full ovipositor extrusion; Ecdysone; Neuroactive; Courtship; Sex determination hierarchy
Categories
Funding
- National Institutes of Health [NIGMS R15 GM080713-01, 3R15GM080713-01A1S1]
- Dean's office of the College of Arts and Sciences, University of New England
- Provost's office of the College of Arts and Sciences, University of New England
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The effect of ecdysteroid signaling on Drosophila female precopulatory behavior was investigated using two types of mutants with either globally reduced ecdysteroid availability or reduced expression of ecdysone receptors in fruitless neurons, known to control sexual behavior. While being courted by males, mutant females performed significantly less full ovipositor extrusion behavior to reject male copulation attempts. Ecdysteroid depleted females (ecdysoneless(1)) performed male-like courtship behaviors, including unilateral wing extension and song production with patterns very similar to male courtship song. These results support the hypothesis that ecdysteroids modulate female sexual behavior, perhaps acting as a regulator of sexual motivation, and as a component affecting the performance of sex specific behavior patterns. (C) 2012 Elsevier Ltd. All rights reserved.
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