The monoaminergic system is a bilaterian innovation

Matthew Goulty, Gaelle Botton-Amiot, Ezio Rosato, Simon G. Sprecher and Roberto Feuda ()
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Matthew Goulty: University of Leicester
Gaelle Botton-Amiot: University of Fribourg
Ezio Rosato: University of Leicester
Simon G. Sprecher: University of Fribourg
Roberto Feuda: University of Leicester

Nature Communications, 2023, vol. 14, issue 1, 1-15

Abstract: Abstract Monoamines like serotonin, dopamine, and adrenaline/noradrenaline (epinephrine/norepinephrine) act as neuromodulators in the nervous system. They play a role in complex behaviours, cognitive functions such as learning and memory formation, as well as fundamental homeostatic processes such as sleep and feeding. However, the evolutionary origin of the genes required for monoaminergic modulation is uncertain. Using a phylogenomic approach, in this study, we show that most of the genes involved in monoamine production, modulation, and reception originated in the bilaterian stem group. This suggests that the monoaminergic system is a bilaterian novelty and that its evolution may have contributed to the Cambrian diversification.

Date: 2023
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DOI: 10.1038/s41467-023-39030-2

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