Desiccation stress induces developmental heterochrony in Drosophila melanogaster.

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dc.contributor.authorThorat, Leena
dc.contributor.authorOulkar, Dasharath P
dc.contributor.authorBanerjee, Kaushik
dc.contributor.authorNath, Bimalendu B
dc.date.accessioned2017-01-12T04:00:47Z
dc.date.available2017-01-12T04:00:47Z
dc.date.issued2016-09
dc.description.abstractStressful environments are known to perturb developmental patterns in insects. In the purview of desiccation as a stressor, relatively little is known about the developmental consequences linked with desiccation tolerance. In this study, we have particularly focused on the exploration of the temporal profile of postembryonic development in response to desiccation exposure in Drosophila melanogaster and the associated trade-offs. We document a correlation between variations in 20-hydroxyecdysone levels and the altered timing of metamorphic events during the life cycle. Following desiccation, we observed an extension in the larval longevity whereas the duration of the pupal and adult stages was significantly shortened. Alternately, feeding of 20-hydroxyecdysone apparently led to the restoration of the normal temporal pattern of development in the desiccated group. In spite of the desiccation-responsive heterochronic shifts in development, the overall lifespan post recovery remained almost unaltered among the desiccated and undesiccated groups suggesting plasticity in developmental control. This observation reminisces ‘canalization-like’ phenomenon that buffers alterations in the overall lifespan. We thus identified a desiccationresponsive period in the lifespan of D. melanogaster during which variations in ecdysone levels are capable to alter the temporal course of development.en_US
dc.identifier.citationThorat Leena, Oulkar Dasharath P, Banerjee Kaushik, Nath Bimalendu B. Desiccation stress induces developmental heterochrony in Drosophila melanogaster. Journal of Biosciences. 2016 Sept; 41(3): 331-339.en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/181595
dc.language.isoenen_US
dc.source.urihttps://www.ias.ac.in/describe/article/jbsc/041/03/0331-0339en_US
dc.subject20-Hydroxyecdysoneen_US
dc.subjectcanalizationen_US
dc.subjectdesiccationen_US
dc.subjectdevelopmental heterochronyen_US
dc.subjectDrosophila melanogasteren_US
dc.titleDesiccation stress induces developmental heterochrony in Drosophila melanogaster.en_US
dc.typeArticleen_US
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