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Divergent evolution of sleep in Drosophila species

Author

Listed:
  • Michaela Joyce

    (Imperial College London
    The Francis Crick Research Institute)

  • Federica A. Falconio

    (Imperial College London)

  • Laurence Blackhurst

    (Imperial College London)

  • Lucia Prieto-Godino

    (The Francis Crick Research Institute)

  • Alice S. French

    (Imperial College London
    The Francis Crick Research Institute
    School of Physiology, Pharmacology and Neuroscience, University of Bristol)

  • Giorgio F. Gilestro

    (Imperial College London)

Abstract

Living organisms synchronize their biological activities with the earth’s rotation through the circadian clock, a molecular mechanism that regulates biology and behavior daily. This synchronization factually maximizes positive activities (e.g., social interactions, feeding) during safe periods, and minimizes exposure to dangers (e.g., predation, darkness) typically at night. Beyond basic circadian regulation, some behaviors like sleep have an additional layer of homeostatic control, ensuring those essential activities are fulfilled. While sleep is predominantly governed by the circadian clock, a secondary homeostatic regulator, though not well-understood, ensures adherence to necessary sleep amounts and hints at a fundamental biological function of sleep beyond simple energy conservation and safety. Here we explore sleep regulation across seven Drosophila species with diverse ecological niches, revealing that while circadian-driven sleep aspects are consistent, homeostatic regulation varies significantly. The findings suggest that in Drosophilids, sleep evolved primarily for circadian purposes. The more complex, homeostatically regulated functions of sleep appear to have evolved independently in a species-specific manner, and are not universally conserved. This laboratory model may reproduce and recapitulate primordial sleep evolution.

Suggested Citation

  • Michaela Joyce & Federica A. Falconio & Laurence Blackhurst & Lucia Prieto-Godino & Alice S. French & Giorgio F. Gilestro, 2024. "Divergent evolution of sleep in Drosophila species," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
  • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-49501-9
    DOI: 10.1038/s41467-024-49501-9
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    References listed on IDEAS

    as
    1. Alice S. French & Quentin Geissmann & Esteban J. Beckwith & Giorgio F. Gilestro, 2021. "Sensory processing during sleep in Drosophila melanogaster," Nature, Nature, vol. 598(7881), pages 479-482, October.
    2. Georg Dietzl & Doris Chen & Frank Schnorrer & Kuan-Chung Su & Yulia Barinova & Michaela Fellner & Beate Gasser & Kaolin Kinsey & Silvia Oppel & Susanne Scheiblauer & Africa Couto & Vincent Marra & Kry, 2007. "A genome-wide transgenic RNAi library for conditional gene inactivation in Drosophila," Nature, Nature, vol. 448(7150), pages 151-156, July.
    3. Jena L. Pitman & Jermaine J. McGill & Kevin P. Keegan & Ravi Allada, 2006. "A dynamic role for the mushroom bodies in promoting sleep in Drosophila," Nature, Nature, vol. 441(7094), pages 753-756, June.
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