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Cell Rep

Title:		The Olfactory Logic behind Fruit Odor Preferences in Larval and Adult Drosophila
Author(s):		Dweck HKM; Ebrahim SAM; Retzke T; Grabe V; Weissflog J; Svatos A; Hansson BS; Knaden M;
Address:		"Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Hans-Knoell-Strasse 8, 07745 Jena, Germany. Electronic address: hany.dweck@yale.edu. Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Hans-Knoell-Strasse 8, 07745 Jena, Germany. Mass Spectrometry Group, Max Planck Institute for Chemical Ecology, Hans-Knoell-Strasse 8, 07745 Jena, Germany. Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Hans-Knoell-Strasse 8, 07745 Jena, Germany. Electronic address: mknaden@ice.mpg.de"
Journal Title:		Cell Rep
Year:		2018
Volume:		23
Issue:		8
Page Number:		2524 - 2531
DOI:		10.1016/j.celrep.2018.04.085
ISSN/ISBN:		2211-1247 (Electronic)
Abstract:		"Despite the comprehensive knowledge on odor coding, our understanding of the relationship between sensory input and behavioral output in Drosophila remains weak. Here, we measure the behavioral responses generated by larval and adult flies in response to 34 fruit odors and find that larval preference for fruit odors differs from that of adult flies. Next, we provide a functional analysis of the full repertoire of the peripheral olfactory system using the same comprehensive stimulus spectrum. We find that 90% and 53% of larval and adult olfactory receptors tested here, respectively, are involved in evaluating these fruit odors. Finally, we find that the total amount of olfactory neuronal activity correlates strongly positively with behavioral output in larvae and correlates weakly negatively in adult flies. Our results suggest that larval and adult flies have evolved different mechanisms for detection and computation of fruit odors, mechanisms likely mirroring the different lifestyles of both developmental stages"
Keywords:		"Aging/*physiology Animals Behavior, Animal *Choice Behavior Drosophila melanogaster/*physiology *Fruit Larva/physiology *Odorants Receptors, Odorant/metabolism Smell/*physiology Volatile Organic Compounds/analysis Drosophila olfaction olfactory code vineg;"
Notes:		"MedlineDweck, Hany K M Ebrahim, Shimaa A M Retzke, Tom Grabe, Veit Weissflog, Jerrit Svatos, Ales Hansson, Bill S Knaden, Markus eng Research Support, Non-U.S. Gov't 2018/05/24 Cell Rep. 2018 May 22; 23(8):2524-2531. doi: 10.1016/j.celrep.2018.04.085"