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Resonating circadian clocks enhance fitness in cyanobacteria

Open access
Ouyang, Yan, Andersson, Carol R., Kondo, Takao, Golden, Susan S., Johnson, Carl Hirschie·1998·Proceedings of the National Academy of Sciences

Abstract

In some organisms longevity, growth, and developmental rate are improved when they are maintained on a light/dark cycle, the period of which “resonates” optimally with the period of the endogenous circadian clock. However, to our knowledge no studies have demonstrated that reproductive fitness per se is improved by resonance between the endogenous clock and the environmental cycle. We tested the adaptive significance of circadian programming by measuring the relative fitness under competition between various strains of cyanobacteria expressing different circadian periods. Strains that had a circadian period similar to that of the light/dark cycle were favored under competition in a manner that indicates the action of soft selection.

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Authors
Ouyang, Y., Andersson, C. R., Kondo, T., Golden, S. S., & Johnson, C. H.
Venue
Proceedings of the National Academy of Sciences
Published
1998-07-21
Volume
95
Issue
15
Pages
8660-8664
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2022442940
Cited by
770
References
0
FWCI
6.61
Type
journal article
Language
en
Open access
bronze

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