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Desiccation stress induces developmental heterochrony in Drosophila melanogaster

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Title Desiccation stress induces developmental heterochrony in Drosophila melanogaster
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Creator Thorat L, Oulkar D.P., Banerjee Kaushik, Nath B.B.
 
Subject LC-MS/MS
Insect metabolite
 
Description Not Available
Stressful 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 desiccation responsive period in the lifespan of D. melanogaster during which variations in ecdysone levels are capable to alter the temporal course of development.
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Date 2020-07-31T06:35:43Z
2020-07-31T06:35:43Z
2016-08-04
 
Type Journal
 
Identifier Thorat L, Oulkar D.P., Banerjee Kaushik, Nath B.B. (2016). Desiccation stress induces developmental heterochrony in Drosophila melanogaster. Journal of Biosciences 41(3): 331-339
https://doi.org/10.1007/s12038-016-9628-7
http://krishi.icar.gov.in/jspui/handle/123456789/38663
 
Language English
 
Relation Not Available;
 
Publisher Springer