Reference: Kembro JM, et al. (2023) A dynamically coherent pattern of rhythms that matches between distant species across the evolutionary scale. Sci Rep 13(1):5326

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Abstract


We address the temporal organization of circadian and ultradian rhythms, crucial for understanding biological timekeeping in behavior, physiology, metabolism, and alignment with geophysical time. Using a newly developed five-steps wavelet-based approach to analyze high-resolution time series of metabolism in yeast cultures and spontaneous movement, metabolism, and feeding behavior in mice, rats, and quails, we describe a dynamically coherent pattern of rhythms spanning over a broad range of temporal scales (hours to minutes). The dynamic pattern found shares key features among the four, evolutionary distant, species analyzed. Specifically, a branching appearance given by splitting periods from 24 h into 12 h, 8 h and below in mammalian and avian species, or from 14 h down to 0.07 h in yeast. Scale-free fluctuations with long-range correlations prevail below ~ 4 h. Synthetic time series modeling support a scenario of coexisting behavioral rhythms, with circadian and ultradian rhythms at the center of the emergent pattern observed.

Reference Type
Journal Article | Research Support, N.I.H., Intramural | Research Support, Non-U.S. Gov't
Authors
Kembro JM, Flesia AG, Nieto PS, Caliva JM, Lloyd D, Cortassa S, Aon MA
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