Taste and pheromonal inputs govern the regulation of time investment for mating by sexual experience in male Drosophila melanogaster

Males have finite resources to spend on reproduction. Thus, males rely on a 'time investment strategy' to maximize their reproductive success. For example, male Drosophila melanogaster extends their mating duration when surrounded by conditions enriched with rivals. Here we report a differ...

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Published in:	PLoS genetics Vol. 19; no. 5; p. e1010753
Main Authors:	Lee, Seung Gee, Sun, Dongyu, Miao, Hongyu, Wu, Zekun, Kang, Changku, Saad, Baraa, Nguyen, Khoi-Nguyen Ha, Guerra-Phalen, Adrian, Bui, Dorothy, Abbas, Al-Hassan, Trinh, Brian, Malik, Ashvent, Zeghal, Mahdi, Auge, Anne-Christine, Islam, Md Ehteshamul, Wong, Kyle, Stern, Tiffany, Lebedev, Elizabeth, Sherratt, Thomas N, Kim, Woo Jae
Format:	Journal Article
Language:	English
Published:	United States Public Library of Science 22-05-2023 Public Library of Science (PLoS)
Subjects:	Animal reproduction Behavior Behavioral plasticity Biology and Life Sciences Breeding success Competition Courtship of animals Drosophila Drosophila melanogaster Females Fruit-flies Genetic aspects Insects Investment policy Males Peptides Pheromone receptors Pheromones Physiological aspects Research and Analysis Methods Sexual behavior Sexual dimorphism Social Sciences Sperm Statistical significance Taste China
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Summary:	Males have finite resources to spend on reproduction. Thus, males rely on a 'time investment strategy' to maximize their reproductive success. For example, male Drosophila melanogaster extends their mating duration when surrounded by conditions enriched with rivals. Here we report a different form of behavioral plasticity whereby male fruit flies exhibit a shortened duration of mating when they are sexually experienced; we refer to this plasticity as 'shorter-mating-duration (SMD)'. SMD is a plastic behavior and requires sexually dimorphic taste neurons. We identified several neurons in the male foreleg and midleg that express specific sugar and pheromone receptors. Using a cost-benefit model and behavioral experiments, we further show that SMD behavior exhibits adaptive behavioral plasticity in male flies. Thus, our study delineates the molecular and cellular basis of the sensory inputs required for SMD; this represents a plastic interval timing behavior that could serve as a model system to study how multisensory inputs converge to modify interval timing behavior for improved adaptation.
Bibliography:	new_version ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 The authors have declared that no competing interests exist.
ISSN:	1553-7404 1553-7390 1553-7404
DOI:	10.1371/journal.pgen.1010753