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

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 su

SUBMITTER: Cheriyamkunnel SJ 

PROVIDER: S-EPMC8538064 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature