Genetic variation in life-history reaction norms in a marine fish
Neither the scale of adaptive variation nor the genetic basis for differential population responses to the environment is known for broadcast-spawning marine fishes. Using a common-garden experimental protocol, we document how larval growth, survival and their norms of reaction differ genetically am...
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ftpubmed:oai:pubmedcentral.nih.gov:2493576 2023-05-15T15:27:30+02:00 Genetic variation in life-history reaction norms in a marine fish Hutchings, Jeffrey A Swain, Douglas P Rowe, Sherrylynn Eddington, James D Puvanendran, Velmurugu Brown, Joseph A 2007-05-08 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2493576 http://www.ncbi.nlm.nih.gov/pubmed/17490948 https://doi.org/10.1098/rspb.2007.0263 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2493576 http://www.ncbi.nlm.nih.gov/pubmed/17490948 http://dx.doi.org/10.1098/rspb.2007.0263 © 2007 The Royal Society Research Article Text 2007 ftpubmed https://doi.org/10.1098/rspb.2007.0263 2013-09-02T03:14:14Z Neither the scale of adaptive variation nor the genetic basis for differential population responses to the environment is known for broadcast-spawning marine fishes. Using a common-garden experimental protocol, we document how larval growth, survival and their norms of reaction differ genetically among four populations of Atlantic cod (Gadus morhua). These traits, and their plastic responses to food and temperature, differed across spatial scales at which microsatellite DNA failed to detect population structure. Divergent survival reaction norms indicate that warm-water populations are more sensitive to changes in food, whereas cold-water populations are more sensitive to changes in temperature. Our results suggest that neither the direction nor the magnitude of demographic responses to environmental change need be the same among populations. Adaptive phenotypic plasticity, previously undocumented in marine fishes, can significantly influence the probability of recovery and persistence of collapsed populations by affecting their ability to respond to natural and anthropogenic environmental change. Text atlantic cod Gadus morhua PubMed Central (PMC) Proceedings of the Royal Society B: Biological Sciences 274 1619 1693 1699 |
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Research Article |
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Research Article Hutchings, Jeffrey A Swain, Douglas P Rowe, Sherrylynn Eddington, James D Puvanendran, Velmurugu Brown, Joseph A Genetic variation in life-history reaction norms in a marine fish |
topic_facet |
Research Article |
description |
Neither the scale of adaptive variation nor the genetic basis for differential population responses to the environment is known for broadcast-spawning marine fishes. Using a common-garden experimental protocol, we document how larval growth, survival and their norms of reaction differ genetically among four populations of Atlantic cod (Gadus morhua). These traits, and their plastic responses to food and temperature, differed across spatial scales at which microsatellite DNA failed to detect population structure. Divergent survival reaction norms indicate that warm-water populations are more sensitive to changes in food, whereas cold-water populations are more sensitive to changes in temperature. Our results suggest that neither the direction nor the magnitude of demographic responses to environmental change need be the same among populations. Adaptive phenotypic plasticity, previously undocumented in marine fishes, can significantly influence the probability of recovery and persistence of collapsed populations by affecting their ability to respond to natural and anthropogenic environmental change. |
format |
Text |
author |
Hutchings, Jeffrey A Swain, Douglas P Rowe, Sherrylynn Eddington, James D Puvanendran, Velmurugu Brown, Joseph A |
author_facet |
Hutchings, Jeffrey A Swain, Douglas P Rowe, Sherrylynn Eddington, James D Puvanendran, Velmurugu Brown, Joseph A |
author_sort |
Hutchings, Jeffrey A |
title |
Genetic variation in life-history reaction norms in a marine fish |
title_short |
Genetic variation in life-history reaction norms in a marine fish |
title_full |
Genetic variation in life-history reaction norms in a marine fish |
title_fullStr |
Genetic variation in life-history reaction norms in a marine fish |
title_full_unstemmed |
Genetic variation in life-history reaction norms in a marine fish |
title_sort |
genetic variation in life-history reaction norms in a marine fish |
publisher |
The Royal Society |
publishDate |
2007 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2493576 http://www.ncbi.nlm.nih.gov/pubmed/17490948 https://doi.org/10.1098/rspb.2007.0263 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2493576 http://www.ncbi.nlm.nih.gov/pubmed/17490948 http://dx.doi.org/10.1098/rspb.2007.0263 |
op_rights |
© 2007 The Royal Society |
op_doi |
https://doi.org/10.1098/rspb.2007.0263 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
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274 |
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1619 |
container_start_page |
1693 |
op_container_end_page |
1699 |
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1766357936059187200 |