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Sci Adv

Title:		Mate discrimination among subspecies through a conserved olfactory pathway
Author(s):		Khallaf MA; Auer TO; Grabe V; Depetris-Chauvin A; Ammagarahalli B; Zhang DD; Lavista-Llanos S; Kaftan F; Weissflog J; Matzkin LM; Rollmann SM; Lofstedt C; Svatos A; Dweck HKM; Sachse S; Benton R; Hansson BS; Knaden M;
Address:		"Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Hans-Knoll-Strasse 8, D-07745 Jena, Germany. Center for Integrative Genomics, Faculty of Biology and Medicine, University of Lausanne, CH-1015 Lausanne, Switzerland. Department of Biological Sciences, University of Cincinnati, Cincinnati, OH 45221, USA. Department of Biology, Lund University, SE-22362 Lund, Sweden. Group of Mass Spectrometry and Proteomics, Max Planck Institute for Chemical Ecology, Hans-Knoll-Strasse 8, D-07745 Jena, Germany. Department of Entomology, University of Arizona, 1140 E. South Campus Drive, Tucson, AZ 85721, USA"
Journal Title:		Sci Adv
Year:		2020
Volume:		20200617
Issue:		25
Page Number:		eaba5279 -
DOI:		10.1126/sciadv.aba5279
ISSN/ISBN:		2375-2548 (Electronic) 2375-2548 (Linking)
Abstract:		"Communication mechanisms underlying the sexual isolation of species are poorly understood. Using four subspecies of Drosophila mojavensis as a model, we identify two behaviorally active, male-specific pheromones. One functions as a conserved male antiaphrodisiac in all subspecies and acts via gustation. The second induces female receptivity via olfaction exclusively in the two subspecies that produce it. Genetic analysis of the cognate receptor for the olfactory pheromone indicates an important role for this sensory pathway in promoting sexual isolation of subspecies, in combination with auditory signals. Unexpectedly, the peripheral sensory pathway detecting this pheromone is conserved molecularly, physiologically, and anatomically across subspecies. These observations imply that subspecies-specific behaviors arise from differential interpretation of the same peripheral cue, reminiscent of sexually conserved detection but dimorphic interpretation of male pheromones in Drosophila melanogaster. Our results reveal that, during incipient speciation, pheromone production, detection, and interpretation do not necessarily evolve in a coordinated manner"
Keywords:		"Animals Drosophila/metabolism *Drosophila melanogaster/physiology Female Male Olfactory Pathways Pheromones/genetics/metabolism *Sex Attractants/physiology Sexual Behavior, Animal/physiology;"
Notes:		"MedlineKhallaf, Mohammed A Auer, Thomas O Grabe, Veit Depetris-Chauvin, Ana Ammagarahalli, Byrappa Zhang, Dan-Dan Lavista-Llanos, Sofia Kaftan, Filip Weissflog, Jerrit Matzkin, Luciano M Rollmann, Stephanie M Lofstedt, Christer Svatos, Ales Dweck, Hany K M Sachse, Silke Benton, Richard Hansson, Bill S Knaden, Markus eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. 2020/07/25 Sci Adv. 2020 Jun 17; 6(25):eaba5279. doi: 10.1126/sciadv.aba5279. eCollection 2020 Jun"