Molecular mechanisms underlying thermal adaptation of xeric animals.

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dc.contributor.authorEvgen'ev, M Ben_US
dc.contributor.authorGarbuz, D Gen_US
dc.contributor.authorShilova, V Yen_US
dc.contributor.authorZatsepina, O Gen_US
dc.date.accessioned2007-04-31en_US
dc.date.accessioned2009-06-01T14:19:08Z
dc.date.available2007-04-31en_US
dc.date.available2009-06-01T14:19:08Z
dc.date.issued2007-04-31en_US
dc.description.abstractFor many years,we and our collaborators have investigated the adaptive role of heat shock proteins in different animals,including the representatives of homothermic and poikilothermic species that inhabit regions with contrasting thermal conditions. Adaptive evolution of the response to hyperthermia has led to different results depending upon the species. The thermal threshold of induction of heat shock proteins in desert thermophylic species is, as a rule, higher than in the species from less extreme climates.In addition,thermoresistant poikilothermic species often exhibit a certain level of heat shock proteins in cells even at a physiologically normal temperature. Furthermore,there is often a positive correlation between the characteristic temperature of the ecological niche of a given species and the amount of Hsp70-like proteins in the cells at normal temperature. Although in most cases adaptation to hyperthermia occurs without changes in the number of heat shock genes, these genes can be amplified in some xeric species. It was shown that mobile genetic elements may play an important role in the evolution and fine-tuning of the heat shock response system,and can be used for direct introduction of mutations in the promoter regions of these genes.en_US
dc.description.affiliationEngelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 199991, Russia. misha572001@yahoo.comen_US
dc.identifier.citationEvgen'ev MB, Garbuz DG, Shilova VY, Zatsepina OG. Molecular mechanisms underlying thermal adaptation of xeric animals. Journal of Biosciences. 2007 Apr; 32(3): 489-99en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/110744
dc.language.isoengen_US
dc.source.urihttps://www.ias.ac.in/jbiosci/index.htmlen_US
dc.subject.meshAcclimatization --physiologyen_US
dc.subject.meshAnimalsen_US
dc.subject.meshDesert Climateen_US
dc.subject.meshDrosophila --geneticsen_US
dc.subject.meshEcosystemen_US
dc.subject.meshEvolutionen_US
dc.subject.meshHeat-Shock Proteins --metabolismen_US
dc.subject.meshLizards --geneticsen_US
dc.subject.meshMoths --geneticsen_US
dc.subject.meshPromoter Regions, Genetic --geneticsen_US
dc.subject.meshTemperatureen_US
dc.titleMolecular mechanisms underlying thermal adaptation of xeric animals.en_US
dc.typeJournal Articleen_US
dc.typeResearch Support, Non-U.S. Gov'ten_US
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