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Cheriyamkunnel SJ, Rose S, Jacob PF, et al. A neuronal mechanism controlling the choice between feeding and sexual behaviors in Drosophila. Curr Biol. 2021;31(19):4231-4245.e4doi: 10.1016/j.cub.2021.07.029.
Cheriyamkunnel, S. J., Rose, S., Jacob, P. F., Blackburn, L. A., Glasgow, S., Moorse, J., Winstanley, M., Moynihan, P. J., Waddell, S., & Rezaval, C. (2021). A neuronal mechanism controlling the choice between feeding and sexual behaviors in Drosophila. Current biology : CB, 31(19), 4231-4245.e4. https://doi.org/10.1016/j.cub.2021.07.029
Cheriyamkunnel, Sherry J, et al. "A neuronal mechanism controlling the choice between feeding and sexual behaviors in Drosophila." Current biology : CB vol. 31,19 (2021): 4231-4245.e4. doi: https://doi.org/10.1016/j.cub.2021.07.029
Cheriyamkunnel SJ, Rose S, Jacob PF, Blackburn LA, Glasgow S, Moorse J, Winstanley M, Moynihan PJ, Waddell S, Rezaval C. A neuronal mechanism controlling the choice between feeding and sexual behaviors in Drosophila. Curr Biol. 2021 Oct 11;31(19):4231-4245.e4. doi: 10.1016/j.cub.2021.07.029. Epub 2021 Aug 05. PMID: 34358444; PMCID: PMC8538064.
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Curr Biol. 2021 Oct 11;31(19):4231-4245.e4. doi: 10.1016/j.cub.2021.07.029. Epub 2021 Aug 05.

A neuronal mechanism controlling the choice between feeding and sexual behaviors in Drosophila.

Current biology : CB

Sherry J Cheriyamkunnel, Saloni Rose, Pedro F Jacob, Lauren A Blackburn, Shaleen Glasgow, Jacob Moorse, Mike Winstanley, Patrick J Moynihan, Scott Waddell, Carolina Rezaval

Affiliations

  1. School of Biosciences, University of Birmingham, Birmingham B15 2TT, UK.
  2. Centre for Neural Circuits and Behaviour, University of Oxford, Oxford OX1 3SR, UK.
  3. School of Biosciences, University of Birmingham, Birmingham B15 2TT, UK. Electronic address: [email protected].

PMID: 34358444 PMCID: PMC8538064 DOI: 10.1016/j.cub.2021.07.029

Abstract

Animals must express the appropriate behavior that meets their most pressing physiological needs and their environmental context. However, it is currently unclear how alternative behavioral options are evaluated and appropriate actions are prioritized. Here, we describe how fruit flies choose between feeding and courtship; two behaviors necessary for survival and reproduction. We show that sex- and food-deprived male flies prioritize feeding over courtship initiation, and manipulation of food quality or the animal's internal state fine-tunes this decision. We identify the tyramine signaling pathway as an essential mediator of this decision. Tyramine biosynthesis is regulated by the fly's nutritional state and acts as a satiety signal, favoring courtship over feeding. Tyramine inhibits a subset of feeding-promoting tyramine receptor (TyrR)-expressing neurons and activates P1 neurons, a known command center for courtship. Conversely, the perception of a nutritious food source activates TyrR neurons and inhibits P1 neurons. Therefore, TyrR and P1 neurons are oppositely modulated by starvation, via tyramine levels, and food availability. We propose that antagonistic co-regulation of neurons controlling alternative actions is key to prioritizing competing drives in a context- dependent manner.

Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.

Keywords: Drosophila; action selection; courtship; decision-making; feeding; mating; motivation; sensory conflict; tyramine

Conflict of interest statement

Declaration of interests The authors declare no competing interests.

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