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Author (up) Hozer, C.; Perret, M.; Pavard, S.; Pifferi, F. url  doi
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  Title Survival is reduced when endogenous period deviates from 24 h in a non-human primate, supporting the circadian resonance theory Type Journal Article
  Year 2020 Publication Scientific Reports Abbreviated Journal Sci Rep  
  Volume 10 Issue 1 Pages 18002  
  Keywords Animals  
  Abstract Circadian rhythms are ubiquitous attributes across living organisms and allow the coordination of internal biological functions with optimal phases of the environment, suggesting a significant adaptive advantage. The endogenous period called tau lies close to 24 h and is thought to be implicated in individuals' fitness: according to the circadian resonance theory, fitness is reduced when tau gets far from 24 h. In this study, we measured the endogenous period of 142 mouse lemurs (Microcebus murinus), and analyzed how it is related to their survival. We found different effects according to sex and season. No impact of tau on mortality was found in females. However, in males, the deviation of tau from 24 h substantially correlates with an increase in mortality, particularly during the inactive season (winter). These results, comparable to other observations in mice or drosophila, show that captive gray mouse lemurs enjoy better fitness when their circadian period closely matches the environmental periodicity. In addition to their deep implications in health and aging research, these results raise further ecological and evolutionary issues regarding the relationships between fitness and circadian clock.  
  Address Unite Mecanismes Adaptatifs et Evolution, Museum National d'Histoire Naturelle, CNRS, 1 Avenue du Petit Chateau, 91800, Brunoy, France. fabien.pifferi@mnhn.fr  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2045-2322 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:33093578; PMCID:PMC7582969 Approved no  
  Call Number GFZ @ kyba @ Serial 3244  
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