Environmental Adaptation and Evolution of Circadian Clocks

Dani, Chitrang; Kannan, Nisha N.; Sheeba, Vasu

doi:10.1007/978-981-99-0726-7_9

Cited by 1 publication

(1 citation statement)

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“…These include selection on divergent phasing of behavior (Pittendrigh, 1967; Kumar et al, 2007), stabilizing selection on the accuracy of phase angle (Kannan et al, 2012), long-term maintenance under constant environment conditions (e.g., constant light or darkness, consistent photoperiod [LD] cycles, and so on), or long-term exposure to semi-natural conditions (Sheeba et al, 1999; Imafuku and Haramura, 2011; Shindey et al, 2016; Dani and Sheeba, 2022). While these studies cannot be expected to provide the same depth of insight as the experimental evolution of circadian systems from arhythmic states, they have provided valuable insights into correlated evolution of clock properties (Dani et al, 2023).…”

Section: Discussionmentioning

confidence: 99%

Evaluating the Adaptive Fitness of Circadian Clocks and their Evolution

Jabbur,

Dani,

Spoelstra

et al. 2024

J Biol Rhythms

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Surely most chronobiologists believe circadian clocks are an adaptation of organisms that enhances fitness, but are we certain that this focus of our research effort really confers a fitness advantage? What is the evidence, and how do we evaluate it? What are the best criteria? These questions are the topic of this review. In addition, we will discuss selective pressures that might have led to the historical evolution of circadian systems while considering the intriguing question of whether the ongoing climate change is modulating these selective pressures so that the clock is still evolving.

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