Developmental thermal plasticity among Drosophila melanogaster populations

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Many biotic and abiotic variables influence the dispersal and distribution of organisms. Temperature has a major role in determining these patterns because it changes daily, seasonally and spatially, and these fluctuations have a significant impact on an organism's behaviour and fitness. Most e...

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Autor principal:	Fanara, Juan Jose
Publicado:	2014
Materias:	Chill-coma recovery Cold acclimation Phenotypic plasticity Temperature stress resistance Thermotolerance
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1010061X_v_n_p_Fallis http://hdl.handle.net/20.500.12110/paper_1010061X_v_n_p_Fallis
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_1010061X_v_n_p_Fallis
record_format	dspace
spelling	paper:paper_1010061X_v_n_p_Fallis2023-06-08T15:59:32Z Developmental thermal plasticity among Drosophila melanogaster populations Fanara, Juan Jose Chill-coma recovery Cold acclimation Phenotypic plasticity Temperature stress resistance Thermotolerance Many biotic and abiotic variables influence the dispersal and distribution of organisms. Temperature has a major role in determining these patterns because it changes daily, seasonally and spatially, and these fluctuations have a significant impact on an organism's behaviour and fitness. Most ecologically relevant phenotypes that are adaptive are also complex and thus they are influenced by many underlying loci that interact with the environment. In this study, we quantified the degree of thermal phenotypic plasticity within and among populations by measuring chill-coma recovery times of lines reared from egg to adult at two different environmental temperatures. We used sixty genotypes from six natural populations of Drosophila melanogaster sampled along a latitudinal gradient in South America. We found significant variation in thermal plasticity both within and among populations. All populations exhibit a cold acclimation response, with flies reared at lower temperatures having increased resistance to cold. We tested a series of environmental parameters against the variation in population mean thermal plasticity and discovered the mean thermal plasticity was significantly correlated with altitude of origin of the population. Pairing our data with previous experiments on viability fitness assays in the same populations in fixed and variable environments suggests an adaptive role of this thermal plasticity in variable laboratory environments. Altogether, these data demonstrate abundant variation in adaptive thermal plasticity within and among populations. © 2014 The Authors. Fil:Fanara, J.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1010061X_v_n_p_Fallis http://hdl.handle.net/20.500.12110/paper_1010061X_v_n_p_Fallis
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Chill-coma recovery Cold acclimation Phenotypic plasticity Temperature stress resistance Thermotolerance
spellingShingle	Chill-coma recovery Cold acclimation Phenotypic plasticity Temperature stress resistance Thermotolerance Fanara, Juan Jose Developmental thermal plasticity among Drosophila melanogaster populations
topic_facet	Chill-coma recovery Cold acclimation Phenotypic plasticity Temperature stress resistance Thermotolerance
description	Many biotic and abiotic variables influence the dispersal and distribution of organisms. Temperature has a major role in determining these patterns because it changes daily, seasonally and spatially, and these fluctuations have a significant impact on an organism's behaviour and fitness. Most ecologically relevant phenotypes that are adaptive are also complex and thus they are influenced by many underlying loci that interact with the environment. In this study, we quantified the degree of thermal phenotypic plasticity within and among populations by measuring chill-coma recovery times of lines reared from egg to adult at two different environmental temperatures. We used sixty genotypes from six natural populations of Drosophila melanogaster sampled along a latitudinal gradient in South America. We found significant variation in thermal plasticity both within and among populations. All populations exhibit a cold acclimation response, with flies reared at lower temperatures having increased resistance to cold. We tested a series of environmental parameters against the variation in population mean thermal plasticity and discovered the mean thermal plasticity was significantly correlated with altitude of origin of the population. Pairing our data with previous experiments on viability fitness assays in the same populations in fixed and variable environments suggests an adaptive role of this thermal plasticity in variable laboratory environments. Altogether, these data demonstrate abundant variation in adaptive thermal plasticity within and among populations. © 2014 The Authors.
author	Fanara, Juan Jose
author_facet	Fanara, Juan Jose
author_sort	Fanara, Juan Jose
title	Developmental thermal plasticity among Drosophila melanogaster populations
title_short	Developmental thermal plasticity among Drosophila melanogaster populations
title_full	Developmental thermal plasticity among Drosophila melanogaster populations
title_fullStr	Developmental thermal plasticity among Drosophila melanogaster populations
title_full_unstemmed	Developmental thermal plasticity among Drosophila melanogaster populations
title_sort	developmental thermal plasticity among drosophila melanogaster populations
publishDate	2014
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1010061X_v_n_p_Fallis http://hdl.handle.net/20.500.12110/paper_1010061X_v_n_p_Fallis
work_keys_str_mv	AT fanarajuanjose developmentalthermalplasticityamongdrosophilamelanogasterpopulations
_version_	1768542045567188992

Developmental thermal plasticity among Drosophila melanogaster populations

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