Circadian clocks and life-history related traits: is pupation height affected by circadian organization in Drosophila melanogaster?

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dc.contributor.authorParanjpe, Dhanashree Aen_US
dc.contributor.authorAnitha, Den_US
dc.contributor.authorSharma, Vijay Kumaren_US
dc.contributor.authorJoshi, Amitabhen_US
dc.date.accessioned2004-04-09en_US
dc.date.accessioned2009-06-02T07:13:13Z
dc.date.available2004-04-09en_US
dc.date.available2009-06-02T07:13:13Z
dc.date.issued2004-04-09en_US
dc.description.abstractIn D. melanogaster, the observation of greater pupation height under constant darkness than under constant light has been explained by the hypothesis that light has an inhibitory effect on larval wandering behaviour, preventing larvae from crawling higher up the walls of culture vials prior to pupation. If this is the only role of light in affecting pupation height, then various light : dark regimes would be predicted to yield pupation heights intermediate between those seen in constant light and constant darkness. We tested this hypothesis by measuring pupation height under various light : dark regimes in four laboratory populations of Drosophila melanogaster. Pupation height was the greatest in constant darkness, intermediate in constant light, and the least in a light/dark regime of LD 14:14 h. The results clearly suggest that there is more to light regime effects on pupation height than mere behavioural inhibition of wandering larvae, and that circadian organization may play some role in determining pupation height, although the details of this role are not yet clear. We briefly discuss these results in the context of the possible involvement of circadian clocks in life-history evolution.en_US
dc.description.affiliationChronobiology Laboratory, Jawaharlal Nehru Centre for Advanced Scientific Research, P.O. Box 6436, Jakkur, Bangalore 560 064, India.en_US
dc.identifier.citationParanjpe DA, Anitha D, Sharma VK, Joshi A. Circadian clocks and life-history related traits: is pupation height affected by circadian organization in Drosophila melanogaster? Journal of Genetics. 2004 Apr; 83(1): 73-7en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/114299
dc.language.isoengen_US
dc.source.urihttps://www.ias.ac.in/jgenet/index.htmlen_US
dc.subject.meshAnalysis of Varianceen_US
dc.subject.meshAnimalsen_US
dc.subject.meshBehavior, Animalen_US
dc.subject.meshBiological Clocksen_US
dc.subject.meshCircadian Rhythm --physiologyen_US
dc.subject.meshConfidence Intervalsen_US
dc.subject.meshDrosophila melanogaster --growth & developmenten_US
dc.subject.meshLife Cycle Stagesen_US
dc.subject.meshPupa --growth & developmenten_US
dc.titleCircadian clocks and life-history related traits: is pupation height affected by circadian organization in Drosophila melanogaster?en_US
dc.typeComparative Studyen_US
dc.typeJournal Articleen_US
dc.typeResearch Support, Non-U.S. Gov'ten_US
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