A dynamically coherent pattern of rhythms that matches between distant species across the evolutionary scale

JACKELYN M. KEMBRO; ANA GEORGINA FLESIA; PAULA SOFIA NIETO; CALIVA, JORGE M.; DAVID LLOYD; SONIA CORTASSA; MIGUEL A. AON

Scientific Reports

Springer Nature

Año: 2023 vol. 13 p. 5326 - 5326

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-step 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.