Living on the Edge: Physiological and Kinetic Trade-Offs Shape Thermal Tolerance in Intertidal Crabs From Tropical to Sub-Antarctic South America
Temperature is an important abiotic factor that drives the evolution of ectotherms owing to its pervasive effects at all levels of organization. Although a species’ thermal tolerance is environmentally driven within a spatial cline, it may be constrained over time due to differential phylogenetic in...
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ftdoajarticles:oai:doaj.org/article:a44045c890694f7891104752835d2ffd 2023-05-15T13:47:32+02:00 Living on the Edge: Physiological and Kinetic Trade-Offs Shape Thermal Tolerance in Intertidal Crabs From Tropical to Sub-Antarctic South America Samuel Coelho Faria Adalto Bianchini Mariana Machado Lauer Ana Lúcia Ribeiro Latorre Zimbardi Federico Tapella Maria Carolina Romero John Campbell McNamara 2020-04-01T00:00:00Z https://doi.org/10.3389/fphys.2020.00312 https://doaj.org/article/a44045c890694f7891104752835d2ffd EN eng Frontiers Media S.A. https://www.frontiersin.org/article/10.3389/fphys.2020.00312/full https://doaj.org/toc/1664-042X 1664-042X doi:10.3389/fphys.2020.00312 https://doaj.org/article/a44045c890694f7891104752835d2ffd Frontiers in Physiology, Vol 11 (2020) evolutionary physiology thermal adaptation critical limits oxygen consumption lactate LDH Physiology QP1-981 article 2020 ftdoajarticles https://doi.org/10.3389/fphys.2020.00312 2022-12-30T23:29:28Z Temperature is an important abiotic factor that drives the evolution of ectotherms owing to its pervasive effects at all levels of organization. Although a species’ thermal tolerance is environmentally driven within a spatial cline, it may be constrained over time due to differential phylogenetic inheritance. At the limits of thermal tolerance, hemolymph oxygen is reduced and lactate formation is increased due to mismatch between oxygen supply and demand; imbalance between enzyme flexibility/stability also impairs the ability to generate energy. Here, we characterized the effects of lower (LL50) and upper (UL50) critical thermal limits on selected descriptors of aerobic and anaerobic metabolism in 12 intertidal crab species distributed from northern Brazil (≈7.8°S) to southern Patagonia (≈53.2°S), considering their phylogeny. We tested for (i) functional trade-offs regarding aerobic and anaerobic metabolism and LDH kinetics in shaping thermal tolerance; (ii) influence of shared ancestry and thermal province on metabolic evolution; and (iii) presence of evolutionary convergences and adaptive peaks in the crab phylogeny. The tropical and subtropical species showed similar systemic and kinetic responses, both differing from the sub-Antarctic crabs. The lower UL50’s of the sub-Antarctic crabs may reflect mismatch between the evolution of aerobic and anaerobic metabolism since these crabs exhibit lower oxygen consumption but higher lactate formation than tropical and subtropical species also at their respective UL50’s. LDH activity increased with temperature increase, while KmPyr remained fairly constant; catalytic coefficient correlated negatively with thermal niche. Thermal tolerance may rely on a putative evolutionary trade-off between aerobic and anaerobic metabolism regarding energy supply, while temperature compensation of kinetic performance is driven by thermal habitat as revealed by the LDH affinity/efficiency equilibrium. The overall physiological evolution revealed two homoplastic adaptive peaks in the ... Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic Patagonia Frontiers in Physiology 11 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
evolutionary physiology thermal adaptation critical limits oxygen consumption lactate LDH Physiology QP1-981 |
spellingShingle |
evolutionary physiology thermal adaptation critical limits oxygen consumption lactate LDH Physiology QP1-981 Samuel Coelho Faria Adalto Bianchini Mariana Machado Lauer Ana Lúcia Ribeiro Latorre Zimbardi Federico Tapella Maria Carolina Romero John Campbell McNamara Living on the Edge: Physiological and Kinetic Trade-Offs Shape Thermal Tolerance in Intertidal Crabs From Tropical to Sub-Antarctic South America |
topic_facet |
evolutionary physiology thermal adaptation critical limits oxygen consumption lactate LDH Physiology QP1-981 |
description |
Temperature is an important abiotic factor that drives the evolution of ectotherms owing to its pervasive effects at all levels of organization. Although a species’ thermal tolerance is environmentally driven within a spatial cline, it may be constrained over time due to differential phylogenetic inheritance. At the limits of thermal tolerance, hemolymph oxygen is reduced and lactate formation is increased due to mismatch between oxygen supply and demand; imbalance between enzyme flexibility/stability also impairs the ability to generate energy. Here, we characterized the effects of lower (LL50) and upper (UL50) critical thermal limits on selected descriptors of aerobic and anaerobic metabolism in 12 intertidal crab species distributed from northern Brazil (≈7.8°S) to southern Patagonia (≈53.2°S), considering their phylogeny. We tested for (i) functional trade-offs regarding aerobic and anaerobic metabolism and LDH kinetics in shaping thermal tolerance; (ii) influence of shared ancestry and thermal province on metabolic evolution; and (iii) presence of evolutionary convergences and adaptive peaks in the crab phylogeny. The tropical and subtropical species showed similar systemic and kinetic responses, both differing from the sub-Antarctic crabs. The lower UL50’s of the sub-Antarctic crabs may reflect mismatch between the evolution of aerobic and anaerobic metabolism since these crabs exhibit lower oxygen consumption but higher lactate formation than tropical and subtropical species also at their respective UL50’s. LDH activity increased with temperature increase, while KmPyr remained fairly constant; catalytic coefficient correlated negatively with thermal niche. Thermal tolerance may rely on a putative evolutionary trade-off between aerobic and anaerobic metabolism regarding energy supply, while temperature compensation of kinetic performance is driven by thermal habitat as revealed by the LDH affinity/efficiency equilibrium. The overall physiological evolution revealed two homoplastic adaptive peaks in the ... |
format |
Article in Journal/Newspaper |
author |
Samuel Coelho Faria Adalto Bianchini Mariana Machado Lauer Ana Lúcia Ribeiro Latorre Zimbardi Federico Tapella Maria Carolina Romero John Campbell McNamara |
author_facet |
Samuel Coelho Faria Adalto Bianchini Mariana Machado Lauer Ana Lúcia Ribeiro Latorre Zimbardi Federico Tapella Maria Carolina Romero John Campbell McNamara |
author_sort |
Samuel Coelho Faria |
title |
Living on the Edge: Physiological and Kinetic Trade-Offs Shape Thermal Tolerance in Intertidal Crabs From Tropical to Sub-Antarctic South America |
title_short |
Living on the Edge: Physiological and Kinetic Trade-Offs Shape Thermal Tolerance in Intertidal Crabs From Tropical to Sub-Antarctic South America |
title_full |
Living on the Edge: Physiological and Kinetic Trade-Offs Shape Thermal Tolerance in Intertidal Crabs From Tropical to Sub-Antarctic South America |
title_fullStr |
Living on the Edge: Physiological and Kinetic Trade-Offs Shape Thermal Tolerance in Intertidal Crabs From Tropical to Sub-Antarctic South America |
title_full_unstemmed |
Living on the Edge: Physiological and Kinetic Trade-Offs Shape Thermal Tolerance in Intertidal Crabs From Tropical to Sub-Antarctic South America |
title_sort |
living on the edge: physiological and kinetic trade-offs shape thermal tolerance in intertidal crabs from tropical to sub-antarctic south america |
publisher |
Frontiers Media S.A. |
publishDate |
2020 |
url |
https://doi.org/10.3389/fphys.2020.00312 https://doaj.org/article/a44045c890694f7891104752835d2ffd |
geographic |
Antarctic Patagonia |
geographic_facet |
Antarctic Patagonia |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Frontiers in Physiology, Vol 11 (2020) |
op_relation |
https://www.frontiersin.org/article/10.3389/fphys.2020.00312/full https://doaj.org/toc/1664-042X 1664-042X doi:10.3389/fphys.2020.00312 https://doaj.org/article/a44045c890694f7891104752835d2ffd |
op_doi |
https://doi.org/10.3389/fphys.2020.00312 |
container_title |
Frontiers in Physiology |
container_volume |
11 |
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1766247266227585024 |