A Plastic Clock: How Circadian Rhythms Respond to Environmental Cues in Drosophila |
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Authors: | Raphaelle Dubruille Patrick Emery |
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Institution: | (1) Department of Neurobiology, University of Massachusetts Medical School, 364 Plantation Street, Worcester, MA 01605, USA |
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Abstract: | Circadian clocks synchronize the physiology and behavior of most animals with the day to night cycle. A fundamental property
of the molecular pacemakers generating circadian rhythms is their self-sustained nature: they keep oscillating even under
constant conditions, with a period close to, but not exactly, 24 h. However, circadian pacemakers have to be sensitive to
environmental cues to be beneficial. They need to be reset every day to keep a proper phase relationship with the day to night
cycle, and they have to be able to adjust to seasonal changes in day length and temperature. Here, we review our current knowledge
of the molecular and neural mechanisms contributing to the plasticity of Drosophila circadian rhythms, which are proving to be remarkably sophisticated and complex. |
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Keywords: | Circadian rhythms Behavior Neural network Circadian entrainment Seasonal adaptation Circadian photoresponses Circadian thermoresponses Molecular mechanisms underlying circadian rhythms |
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