Document Type
Article
Publication Date
10-2020
Abstract
Sleep is essential but incompatible with other behaviors, and thus sleep drive competes with other motivations. We previously showed Drosophila males balance sleep and courtship via octopaminergic neurons that act upstream of courtship-regulating P1 neurons (Machado et al., 2017). Here, we show nutrition modulates the sleep-courtship balance and identify sleep-regulatory neurons downstream of P1 neurons. Yeast-deprived males exhibited attenuated female-induced nighttime sleep loss yet normal daytime courtship, which suggests male flies consider nutritional status in deciding whether the potential benefit of pursuing female partners outweighs the cost of losing sleep. Trans-synaptic tracing and calcium imaging identified dopaminergic neurons projecting to the protocerebral bridge (DA-PB) as postsynaptic partners of P1 neurons. Activation of DA-PB neurons led to reduced sleep in normally fed but not yeast-deprived males. Additional PB-projecting neurons regulated male sleep, suggesting several groups of PB-projecting neurons act downstream of P1 neurons to mediate nutritional modulation of the sleep-courtship balance.
Recommended Citation
Duhart, José M; Baccini, Victoria; Zhang, Yanan; Machado, Daniel R; and Koh, Kyunghee, "Modulation of sleep-courtship balance by nutritional status in Drosophila" (2020). Farber Institute for Neuroscience Faculty Papers. Paper 37.
https://jdc.jefferson.edu/farberneursofp/37
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
PubMed ID
33084567
Language
English
Comments
This is the final published version of the article from eLife, 2020 Oct 21;9:e60853.
The article can also be accessed at the journal's webpage: https://doi.org/10.7554/eLife.60853
Copyright. The Authors
Publication made possible in part by support from the Jefferson Open Access Fund