Enhanced fertility and chill tolerance after cold-induced reproductive arrest in females of temperate species of the Drosophila buzzatii complex

Long-term exposure to low temperatures during adult maturation might decrease fertility after cold recovery as a consequence of carryover effects on reproductive tissues. This pattern should be more pronounced in tropical than in temperate species as protective mechanisms against chilling injuries a...

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Autores principales: Mensch, Julián, Hurtado, Juan Pablo, Zermoglio, Paula Florencia, Schilman, Pablo Ernesto, Hasson, Esteban Ruben
Publicado: 2017
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Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00220949_v220_n4_p713_Mensch
http://hdl.handle.net/20.500.12110/paper_00220949_v220_n4_p713_Mensch
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spelling paper:paper_00220949_v220_n4_p713_Mensch2023-06-08T14:45:40Z Enhanced fertility and chill tolerance after cold-induced reproductive arrest in females of temperate species of the Drosophila buzzatii complex Mensch, Julián Hurtado, Juan Pablo Zermoglio, Paula Florencia Schilman, Pablo Ernesto Hasson, Esteban Ruben Cold resistance Insect Metabolic rate Ovarian arrest Overwintering Triglycerides triacylglycerol acclimatization animal basal metabolic rate cold Drosophila energy metabolism female fertility metabolism ovary physiology season South America tropic climate Acclimatization Animals Basal Metabolism Cold Temperature Drosophila Energy Metabolism Female Fertility Ovary Seasons South America Triglycerides Tropical Climate Long-term exposure to low temperatures during adult maturation might decrease fertility after cold recovery as a consequence of carryover effects on reproductive tissues. This pattern should be more pronounced in tropical than in temperate species as protective mechanisms against chilling injuries are expected to be more effective in the latter. We initially determined the lower thermal thresholds to induce ovarian maturation in four closely related Drosophila species, two inhabiting temperate regions and the other two tropical areas of South America. As expected, only temperate species regularly experience cold-inducing conditions for reproductive arrest during winter in their natural environment. Subsequently, we exposed reproductively arrested and mature females to cold-inducing conditions for reproductive arrest over a long period. Following cold exposure, tropical species exhibited a dramatic fertility decline, irrespective of reproductive status. In contrast, not only were temperate females fecund and fertile but also fertility was superior in females that underwent cold-induced reproductive arrest, suggesting that it might act as a protecting mechanism ensuring fertility after cold recovery. Based on these findings, we decided to evaluate the extent to which reproductive status affects cold tolerance and energy metabolism at low temperature. We found a lower metabolic rate and a higher cold tolerance in reproductively arrested females, although only temperate species attained high levels of chill tolerance. These findings highlight the role of cold-induced reproductive arrest as part of an integrated mechanism of cold adaptation that could potentially contribute to the spread of temperate species into higher latitudes or altitudes. © 2017. Published by The Company of Biologists Ltd. Fil:Mensch, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Hurtado, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Zermoglio, P.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Schilman, P.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Hasson, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00220949_v220_n4_p713_Mensch http://hdl.handle.net/20.500.12110/paper_00220949_v220_n4_p713_Mensch
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Cold resistance
Insect
Metabolic rate
Ovarian arrest
Overwintering
Triglycerides
triacylglycerol
acclimatization
animal
basal metabolic rate
cold
Drosophila
energy metabolism
female
fertility
metabolism
ovary
physiology
season
South America
tropic climate
Acclimatization
Animals
Basal Metabolism
Cold Temperature
Drosophila
Energy Metabolism
Female
Fertility
Ovary
Seasons
South America
Triglycerides
Tropical Climate
spellingShingle Cold resistance
Insect
Metabolic rate
Ovarian arrest
Overwintering
Triglycerides
triacylglycerol
acclimatization
animal
basal metabolic rate
cold
Drosophila
energy metabolism
female
fertility
metabolism
ovary
physiology
season
South America
tropic climate
Acclimatization
Animals
Basal Metabolism
Cold Temperature
Drosophila
Energy Metabolism
Female
Fertility
Ovary
Seasons
South America
Triglycerides
Tropical Climate
Mensch, Julián
Hurtado, Juan Pablo
Zermoglio, Paula Florencia
Schilman, Pablo Ernesto
Hasson, Esteban Ruben
Enhanced fertility and chill tolerance after cold-induced reproductive arrest in females of temperate species of the Drosophila buzzatii complex
topic_facet Cold resistance
Insect
Metabolic rate
Ovarian arrest
Overwintering
Triglycerides
triacylglycerol
acclimatization
animal
basal metabolic rate
cold
Drosophila
energy metabolism
female
fertility
metabolism
ovary
physiology
season
South America
tropic climate
Acclimatization
Animals
Basal Metabolism
Cold Temperature
Drosophila
Energy Metabolism
Female
Fertility
Ovary
Seasons
South America
Triglycerides
Tropical Climate
description Long-term exposure to low temperatures during adult maturation might decrease fertility after cold recovery as a consequence of carryover effects on reproductive tissues. This pattern should be more pronounced in tropical than in temperate species as protective mechanisms against chilling injuries are expected to be more effective in the latter. We initially determined the lower thermal thresholds to induce ovarian maturation in four closely related Drosophila species, two inhabiting temperate regions and the other two tropical areas of South America. As expected, only temperate species regularly experience cold-inducing conditions for reproductive arrest during winter in their natural environment. Subsequently, we exposed reproductively arrested and mature females to cold-inducing conditions for reproductive arrest over a long period. Following cold exposure, tropical species exhibited a dramatic fertility decline, irrespective of reproductive status. In contrast, not only were temperate females fecund and fertile but also fertility was superior in females that underwent cold-induced reproductive arrest, suggesting that it might act as a protecting mechanism ensuring fertility after cold recovery. Based on these findings, we decided to evaluate the extent to which reproductive status affects cold tolerance and energy metabolism at low temperature. We found a lower metabolic rate and a higher cold tolerance in reproductively arrested females, although only temperate species attained high levels of chill tolerance. These findings highlight the role of cold-induced reproductive arrest as part of an integrated mechanism of cold adaptation that could potentially contribute to the spread of temperate species into higher latitudes or altitudes. © 2017. Published by The Company of Biologists Ltd.
author Mensch, Julián
Hurtado, Juan Pablo
Zermoglio, Paula Florencia
Schilman, Pablo Ernesto
Hasson, Esteban Ruben
author_facet Mensch, Julián
Hurtado, Juan Pablo
Zermoglio, Paula Florencia
Schilman, Pablo Ernesto
Hasson, Esteban Ruben
author_sort Mensch, Julián
title Enhanced fertility and chill tolerance after cold-induced reproductive arrest in females of temperate species of the Drosophila buzzatii complex
title_short Enhanced fertility and chill tolerance after cold-induced reproductive arrest in females of temperate species of the Drosophila buzzatii complex
title_full Enhanced fertility and chill tolerance after cold-induced reproductive arrest in females of temperate species of the Drosophila buzzatii complex
title_fullStr Enhanced fertility and chill tolerance after cold-induced reproductive arrest in females of temperate species of the Drosophila buzzatii complex
title_full_unstemmed Enhanced fertility and chill tolerance after cold-induced reproductive arrest in females of temperate species of the Drosophila buzzatii complex
title_sort enhanced fertility and chill tolerance after cold-induced reproductive arrest in females of temperate species of the drosophila buzzatii complex
publishDate 2017
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00220949_v220_n4_p713_Mensch
http://hdl.handle.net/20.500.12110/paper_00220949_v220_n4_p713_Mensch
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AT hassonestebanruben enhancedfertilityandchilltoleranceaftercoldinducedreproductivearrestinfemalesoftemperatespeciesofthedrosophilabuzzatiicomplex
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