Countergradient variation in body shape between two populations of Atlantic cod ( Gadus morhua )
Variation in morphological traits is generally thought to be cogradient, with environmental effects on phenotypic expression reinforcing genetic differences between populations. We compared body shape between two populations of Atlantic cod ( Gadus morhua ). Striking shape differences occurred betwe...
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crroyalsociety:10.1098/rspb.2005.3306 2024-09-15T17:55:22+00:00 Countergradient variation in body shape between two populations of Atlantic cod ( Gadus morhua ) Marcil, Julie Swain, Douglas P Hutchings, Jeffrey A 2005 http://dx.doi.org/10.1098/rspb.2005.3306 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2005.3306 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2005.3306 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society B: Biological Sciences volume 273, issue 1583, page 217-223 ISSN 0962-8452 1471-2954 journal-article 2005 crroyalsociety https://doi.org/10.1098/rspb.2005.3306 2024-08-19T04:24:58Z Variation in morphological traits is generally thought to be cogradient, with environmental effects on phenotypic expression reinforcing genetic differences between populations. We compared body shape between two populations of Atlantic cod ( Gadus morhua ). Striking shape differences occurred between juveniles from the two populations when reared in a common laboratory environment. However, no difference in body shape occurred between wild-reared juveniles from the two populations, suggesting that the genetic differences between populations were obscured by opposing effects of the environmental differences experienced in the wild. We suggest that much of the genetic diversity in body shape of fishes may be cryptic, with stabilizing selection for the same optimal phenotype resulting in genetic divergence between populations subject to contrasting environmental influences. Article in Journal/Newspaper atlantic cod Gadus morhua The Royal Society Proceedings of the Royal Society B: Biological Sciences 273 1583 217 223 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
Variation in morphological traits is generally thought to be cogradient, with environmental effects on phenotypic expression reinforcing genetic differences between populations. We compared body shape between two populations of Atlantic cod ( Gadus morhua ). Striking shape differences occurred between juveniles from the two populations when reared in a common laboratory environment. However, no difference in body shape occurred between wild-reared juveniles from the two populations, suggesting that the genetic differences between populations were obscured by opposing effects of the environmental differences experienced in the wild. We suggest that much of the genetic diversity in body shape of fishes may be cryptic, with stabilizing selection for the same optimal phenotype resulting in genetic divergence between populations subject to contrasting environmental influences. |
format |
Article in Journal/Newspaper |
author |
Marcil, Julie Swain, Douglas P Hutchings, Jeffrey A |
spellingShingle |
Marcil, Julie Swain, Douglas P Hutchings, Jeffrey A Countergradient variation in body shape between two populations of Atlantic cod ( Gadus morhua ) |
author_facet |
Marcil, Julie Swain, Douglas P Hutchings, Jeffrey A |
author_sort |
Marcil, Julie |
title |
Countergradient variation in body shape between two populations of Atlantic cod ( Gadus morhua ) |
title_short |
Countergradient variation in body shape between two populations of Atlantic cod ( Gadus morhua ) |
title_full |
Countergradient variation in body shape between two populations of Atlantic cod ( Gadus morhua ) |
title_fullStr |
Countergradient variation in body shape between two populations of Atlantic cod ( Gadus morhua ) |
title_full_unstemmed |
Countergradient variation in body shape between two populations of Atlantic cod ( Gadus morhua ) |
title_sort |
countergradient variation in body shape between two populations of atlantic cod ( gadus morhua ) |
publisher |
The Royal Society |
publishDate |
2005 |
url |
http://dx.doi.org/10.1098/rspb.2005.3306 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2005.3306 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2005.3306 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Proceedings of the Royal Society B: Biological Sciences volume 273, issue 1583, page 217-223 ISSN 0962-8452 1471-2954 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rspb.2005.3306 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
273 |
container_issue |
1583 |
container_start_page |
217 |
op_container_end_page |
223 |
_version_ |
1810431657151299584 |