Study on fitness of Drosophila melanogaster in different light regimes

Kouser, S. and Palaksha and Shakunthala, V. (2014) Study on fitness of Drosophila melanogaster in different light regimes. Biological Rhythm Research, 45 (2). pp. 293-300. ISSN 0929-1016

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Abstract

Many aspects of the life cycle in Drosophila are known to be either under circadian control or affected by the circadian clock. The present investigations were made to understand whether changes in the rhythm can affect fitness of Drosophila melanogaster. Fitness such as fecundity, male lifetime fertility, female lifetime fertility, male longevity, and female longevity was assessed in light/dark (LD), continuous light (LL), and continuous dark (DD) for 15th and 30th generations. D. melanogaster showed greater fitness in LD than the other two light regimes. This might be due to failure to synchronize the reproductive events properly in LL and DD. LL and DD regimes might have created a stressful environment for Drosophila which has been observed by the reduction in the reproductive success of the individuals. Longevity was more in LD and DD when compared to LL. This shows that D. melanogaster is more adaptive to a LD regime than the other two groups.

Item Type:	Article
Uncontrolled Keywords:	animal experiment, lifespan, nonhuman, male, female, article, fertility, environmental factor, Drosophila melanogaster, longevity, fitness, fly, circadian rhythm, light dark cycle, light effect, entomology, fecundity, female fertility, life cycle, light, light availability, male fertility, reproductive success
Subjects:	B Life Science > Zoology
Divisions:	Department of > Zoology
Depositing User:	Arshiya Kousar Library Assistant
Date Deposited:	27 Jun 2019 06:22
Last Modified:	27 Jun 2019 06:22
URI:	http://eprints.uni-mysore.ac.in/id/eprint/3689

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