On the relevance of using laboratory selection to study the adaptive value of circadian clocks

L Abhilash, VK Sharma - Physiological Entomology, 2016 - Wiley Online Library
The phrase 'as sure as night comes after day'highlights the most conspicuous phenomenon
on earth (ie the daily cycling of geophysical factors). It is hypothesized that life‐forms on …

On the origin and implications of circadian timekeeping: An evolutionary perspective

KL Nikhil, VK Sharma - Biological timekeeping: Clocks, rhythms and …, 2017 - Springer
The ubiquity of circadian rhythms (driven by underlying circadian clocks) in various
behavioural and physiological processes across a variety of life forms supports the …

Drosophila Populations Reared Under Tropical Semi-natural Conditions Evolve Season-dependent Differences in Timing of Eclosion

C Dani, V Sheeba - Frontiers in Physiology, 2022 - frontiersin.org
Circadian clocks are considered an evolutionary adaptation to environmental cycles,
helping organisms to adapt to daily and seasonal changes. However, most studies on the …

Role of Temperature in Mediating Morning and Evening Emergence Chronotypes in Fruit Flies Drosophila melanogaster

KL Nikhil, G Goirik, K Ratna… - Journal of Biological …, 2014 - journals.sagepub.com
Following decades of research under controlled laboratory conditions, there has been
growing interest in the recent past to study circadian rhythms in nature. Recent studies …

Natural conditions override differences in emergence rhythm among closely related drosophilids

PM Prabhakaran, J De, V Sheeba - PLoS One, 2013 - journals.plos.org
Previous studies on adult emergence rhythm of Drosophila melanogaster (DM) done under
semi-natural conditions have shown that emergence is correlated to daily changes in …

Environmental adaptation and evolution of circadian clocks

C Dani, NN Kannan, V Sheeba - Insect chronobiology, 2023 - Springer
In insects, circadian clocks regulate daily rhythmicity in behavior (eg, activity, feeding,
mating, and oviposition), physiological processes, and developmental events such as …

The role of morningness and endurance in mood and attention during morning and evening hours

KS Jankowski, M Zajenkowski - Journal of Individual …, 2016 - econtent.hogrefe.com
This study aimed at testing the effects of morningness-eveningness and endurance on mood
and selective attention during morning and evening hours. University students (N= 80) …

Selection for Timing of Eclosion Results in Co-evolution of Temperature Responsiveness in Drosophila melanogaster

L Abhilash, A Ghosh, V Sheeba - Journal of Biological …, 2019 - journals.sagepub.com
Circadian rhythms in adult eclosion of Drosophila are postulated to be regulated by a pair of
coupled oscillators: one is the master clock that is light sensitive and temperature …

Stability of Adult Emergence and Activity/Rest Rhythms in Fruit Flies Drosophila melanogaster under Semi-Natural Condition

NN Kannan, V Varma, J De, VK Sharma - PLoS One, 2012 - journals.plos.org
Here we report the results of a study aimed at examining stability of adult emergence and
activity/rest rhythms under semi-natural conditions (henceforth SN), in four large outbred fruit …

Evidence for Co-Evolution of Masking With Circadian Phase in Drosophila Melanogaster

A Ghosh, P Sharma, S Dansana… - Journal of Biological …, 2021 - journals.sagepub.com
Heritable variation in the timing of rhythmic events with respect to daily time cues gives rise
to chronotypes. Despite its importance, the mechanisms (clock or non-clock) regulating …