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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Bibliographic Details
Published in:PLoS genetics 2023-05, Vol.19 (5), p.e1010753-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: Article
Language:English
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
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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.
ISSN:1553-7404
1553-7390
1553-7404
DOI:10.1371/journal.pgen.1010753