TY - JOUR T1 - Sexually satiated male uses gustatory-to-neuropeptide integrative circuits to reduce time investment for mating JF - bioRxiv DO - 10.1101/088724 SP - 088724 AU - Woo Jae Kim AU - Seung Gee Lee AU - Anne-Christine Auge AU - Lily Yeh Jan AU - Yuh Nung Jan Y1 - 2016/01/01 UR - http://biorxiv.org/content/early/2016/11/23/088724.abstract N2 - Males rely on a ‘time investment strategy’ to maximize reproductive success. Here we report a novel behavioral plasticity whereby male fruit flies exhibit a shortened mating duration when sexually satiated, which we named ‘Shorter-Mating-Duration (SMD)’. SMD requires the sexually dimorphic Gr5a-positive neurons for detecting female body pheromones. The memory circuitry within the ellipsoid body (EB) and mushroom body (MB) brain regions is crucial for SMD, which depends on the circadian clock genes Clock and cycle, but not timeless or period. SMD also relies on signaling via the neuropeptide sNPF, but not PDF or NPF. Sexual experience modifies the neuronal activity of a subset of sNPF-positive neurons involved in neuropeptide signaling, which modulates SMD. Thus, our study delineates the molecular and cellular basis for SMD – a plastic social behavior that serves as a model system to study how the brain switches the internal states between sexual drive and satiety. ER -