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Elife

Title:		Food odors trigger Drosophila males to deposit a pheromone that guides aggregation and female oviposition decisions
Author(s):		Lin CC; Prokop-Prigge KA; Preti G; Potter CJ;
Address:		"The Solomon H Snyder Department of Neuroscience, Center for Sensory Biology, Johns Hopkins University School of Medicine, Baltimore, United States. Monell Chemical Senses Center, Philadelphia, United States. Department of Dermatology, School of Medicine, University of Pennsylvania, Philadelphia, United States"
Journal Title:		Elife
Year:		2015
Volume:		20150930
Issue:
Page Number:		-
DOI:		10.7554/eLife.08688
ISSN/ISBN:		2050-084X (Electronic) 2050-084X (Print) 2050-084X (Linking)
Abstract:		"Animals use olfactory cues for navigating complex environments. Food odors in particular provide crucial information regarding potential foraging sites. Many behaviors occur at food sites, yet how food odors regulate such behaviors at these sites is unclear. Using Drosophila melanogaster as an animal model, we found that males deposit the pheromone 9-tricosene upon stimulation with the food-odor apple cider vinegar. This pheromone acts as a potent aggregation pheromone and as an oviposition guidance cue for females. We use genetic, molecular, electrophysiological, and behavioral approaches to show that 9-tricosene activates antennal basiconic Or7a receptors, a receptor activated by many alcohols and aldehydes such as the green leaf volatile E2-hexenal. We demonstrate that loss of Or7a positive neurons or the Or7a receptor abolishes aggregation behavior and oviposition site-selection towards 9-tricosene and E2-hexenal. 9-Tricosene thus functions via Or7a to link food-odor perception with aggregation and egg-laying decisions"
Keywords:		*Acetic Acid Alkenes/*metabolism Animals Drosophila melanogaster/*drug effects/*physiology Female Male *Odorants *Oviposition Pheromones/*metabolism D.melanogaster aggregation neuroscience olfaction oviposition pheromone;neuroscience;
Notes:		"MedlineLin, Chun-Chieh Prokop-Prigge, Katharine A Preti, George Potter, Christopher J eng P40 OD018537/OD/NIH HHS/ P40OD018537/OD/NIH HHS/ R01 DC013079/DC/NIDCD NIH HHS/ R01DC013070/DC/NIDCD NIH HHS/ P30 DC005211/DC/NIDCD NIH HHS/ Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't England 2015/10/01 Elife. 2015 Sep 30; 4:e08688. doi: 10.7554/eLife.08688"