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J Insect Physiol

Title:		The female sex pheromone (Z)-4-undecenal mediates flight attraction and courtship in Drosophila melanogaster
Author(s):		Borrero-Echeverry F; Solum M; Trona F; Becher PG; Wallin EA; Bengtsson M; Witzgall P; Lebreton S;
Address:		"Chemical Ecology Unit, Department of Plant Protection Biology, Swedish University of Agricultural Sciences, 230 53 Alnarp, Sweden; Corporacion Colombiana de Investgacion Agropecuaria, Agrosavia, Mosquera, Colombia. Chemical Ecology Unit, Department of Plant Protection Biology, Swedish University of Agricultural Sciences, 230 53 Alnarp, Sweden. Department of Chemical Engineering, Mid Sweden University, Holmgatan 10, 85170 Sundsvall, Sweden. Chemical Ecology Unit, Department of Plant Protection Biology, Swedish University of Agricultural Sciences, 230 53 Alnarp, Sweden. Electronic address: peter.witzgall@slu.se. Chemical Ecology Unit, Department of Plant Protection Biology, Swedish University of Agricultural Sciences, 230 53 Alnarp, Sweden; IRSEA, Research Institute for Semiochemistry and Applied Ethology, Quartier Salignan, 84400 Apt, France"
Journal Title:		J Insect Physiol
Year:		2022
Volume:		20220108
Issue:
Page Number:		104355 -
DOI:		10.1016/j.jinsphys.2022.104355
ISSN/ISBN:		1879-1611 (Electronic) 0022-1910 (Linking)
Abstract:		"Specific mate communication and recognition underlies reproduction and hence speciation. Our study provides new insights in Drosophila melanogaster premating olfactory communication. Mate communication evolves during adaptation to ecological niches and makes use of social signals and habitat cues. Female-produced, species-specific volatile pheromone (Z)-4-undecenal (Z4-11Al) and male pheromone (Z)-11-octadecenyl acetate (cVA) interact with food odour in a sex-specific manner. Furthermore, Z4-11Al, which mediates upwind flight attraction in both sexes, also elicits courtship in experienced males. Two isoforms of the olfactory receptor Or69a are co-expressed in the same olfactory sensory neurons. Z4-11Al is perceived via Or69aB, while the food odorant (R)-linalool is a main ligand for the other variant, Or69aA. However, only Z4-11Al mediates courtship in experienced males, not (R)-linalool. Behavioural discrimination is reflected by calcium imaging of the antennal lobe, showing distinct glomerular activation patterns by these two compounds. Male sex pheromone cVA is known to affect male and female courtship at close range, but does not elicit upwind flight attraction as a single compound, in contrast to Z4-11Al. A blend of the food odour vinegar and cVA attracted females, while a blend of vinegar and female pheromone Z4-11Al attracted males, instead. Sex-specific upwind flight attraction to blends of food volatiles and male and female pheromone, respectively, adds a new element to Drosophila olfactory premating communication and is an unambiguous paradigm for identifying the behaviourally active components, towards a more complete concept of food-pheromone odour objects"
Keywords:		"Acetic Acid Aldehydes Alkenes Animals Courtship *Drosophila melanogaster/physiology Female Male Oleic Acids Pheromones *Sex Attractants Sexual Behavior, Animal/physiology (Z)-11-Octadecenyl acetate (Z)-4-Undecenal Neuroethology Olfaction Specific mate rec;"
Notes:		"MedlineBorrero-Echeverry, Felipe Solum, Marit Trona, Federica Becher, Paul G Wallin, Erika A Bengtsson, Marie Witzgall, Peter Lebreton, Sebastien eng Research Support, Non-U.S. Gov't England 2022/01/11 J Insect Physiol. 2022 Feb-Mar; 137:104355. doi: 10.1016/j.jinsphys.2022.104355. Epub 2022 Jan 8"