Fin whale <scp>MDH</scp>‐1 and <scp>MPI</scp> allozyme variation is not reflected in the corresponding <scp>DNA</scp> sequences
Abstract The appeal of genetic inference methods to assess population genetic structure and guide management efforts is grounded in the correlation between the genetic similarity and gene flow among populations. Effects of such gene flow are typically genomewide; however, some loci may appear as out...
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crwiley:10.1002/ece3.1046 2024-03-17T08:56:59+00:00 Fin whale <scp>MDH</scp>‐1 and <scp>MPI</scp> allozyme variation is not reflected in the corresponding <scp>DNA</scp> sequences Olsen, Morten Tange Pampoulie, Christophe Daníelsdóttir, Anna K. Lidh, Emmelie Bérubé, Martine Víkingsson, Gísli A. Palsbøll, Per J. 2014 http://dx.doi.org/10.1002/ece3.1046 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fece3.1046 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.1046 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ece3.1046 en eng Wiley http://creativecommons.org/licenses/by/3.0/ Ecology and Evolution volume 4, issue 10, page 1787-1803 ISSN 2045-7758 2045-7758 Nature and Landscape Conservation Ecology Ecology, Evolution, Behavior and Systematics journal-article 2014 crwiley https://doi.org/10.1002/ece3.1046 2024-02-22T01:47:51Z Abstract The appeal of genetic inference methods to assess population genetic structure and guide management efforts is grounded in the correlation between the genetic similarity and gene flow among populations. Effects of such gene flow are typically genomewide; however, some loci may appear as outliers, displaying above or below average genetic divergence relative to the genomewide level. Above average population, genetic divergence may be due to divergent selection as a result of local adaptation. Consequently, substantial efforts have been directed toward such outlying loci in order to identify traits subject to local adaptation. Here, we report the results of an investigation into the molecular basis of the substantial degree of genetic divergence previously reported at allozyme loci among North Atlantic fin whale ( Balaenoptera physalus ) populations. We sequenced the exons encoding for the two most divergent allozyme loci ( MDH ‐1 and MPI ) and failed to detect any nonsynonymous substitutions. Following extensive error checking and analysis of additional bioinformatic and morphological data, we hypothesize that the observed allozyme polymorphisms may reflect phenotypic plasticity at the cellular level, perhaps as a response to nutritional stress. While such plasticity is intriguing in itself, and of fundamental evolutionary interest, our key finding is that the observed allozyme variation does not appear to be a result of genetic drift, migration, or selection on the MDH ‐1 and MPI exons themselves, stressing the importance of interpreting allozyme data with caution. As for North Atlantic fin whale population structure, our findings support the low levels of differentiation found in previous analyses of DNA nucleotide loci. Article in Journal/Newspaper Balaenoptera physalus Fin whale North Atlantic Wiley Online Library Ecology and Evolution 4 10 1787 1803 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Nature and Landscape Conservation Ecology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Nature and Landscape Conservation Ecology Ecology, Evolution, Behavior and Systematics Olsen, Morten Tange Pampoulie, Christophe Daníelsdóttir, Anna K. Lidh, Emmelie Bérubé, Martine Víkingsson, Gísli A. Palsbøll, Per J. Fin whale <scp>MDH</scp>‐1 and <scp>MPI</scp> allozyme variation is not reflected in the corresponding <scp>DNA</scp> sequences |
topic_facet |
Nature and Landscape Conservation Ecology Ecology, Evolution, Behavior and Systematics |
description |
Abstract The appeal of genetic inference methods to assess population genetic structure and guide management efforts is grounded in the correlation between the genetic similarity and gene flow among populations. Effects of such gene flow are typically genomewide; however, some loci may appear as outliers, displaying above or below average genetic divergence relative to the genomewide level. Above average population, genetic divergence may be due to divergent selection as a result of local adaptation. Consequently, substantial efforts have been directed toward such outlying loci in order to identify traits subject to local adaptation. Here, we report the results of an investigation into the molecular basis of the substantial degree of genetic divergence previously reported at allozyme loci among North Atlantic fin whale ( Balaenoptera physalus ) populations. We sequenced the exons encoding for the two most divergent allozyme loci ( MDH ‐1 and MPI ) and failed to detect any nonsynonymous substitutions. Following extensive error checking and analysis of additional bioinformatic and morphological data, we hypothesize that the observed allozyme polymorphisms may reflect phenotypic plasticity at the cellular level, perhaps as a response to nutritional stress. While such plasticity is intriguing in itself, and of fundamental evolutionary interest, our key finding is that the observed allozyme variation does not appear to be a result of genetic drift, migration, or selection on the MDH ‐1 and MPI exons themselves, stressing the importance of interpreting allozyme data with caution. As for North Atlantic fin whale population structure, our findings support the low levels of differentiation found in previous analyses of DNA nucleotide loci. |
format |
Article in Journal/Newspaper |
author |
Olsen, Morten Tange Pampoulie, Christophe Daníelsdóttir, Anna K. Lidh, Emmelie Bérubé, Martine Víkingsson, Gísli A. Palsbøll, Per J. |
author_facet |
Olsen, Morten Tange Pampoulie, Christophe Daníelsdóttir, Anna K. Lidh, Emmelie Bérubé, Martine Víkingsson, Gísli A. Palsbøll, Per J. |
author_sort |
Olsen, Morten Tange |
title |
Fin whale <scp>MDH</scp>‐1 and <scp>MPI</scp> allozyme variation is not reflected in the corresponding <scp>DNA</scp> sequences |
title_short |
Fin whale <scp>MDH</scp>‐1 and <scp>MPI</scp> allozyme variation is not reflected in the corresponding <scp>DNA</scp> sequences |
title_full |
Fin whale <scp>MDH</scp>‐1 and <scp>MPI</scp> allozyme variation is not reflected in the corresponding <scp>DNA</scp> sequences |
title_fullStr |
Fin whale <scp>MDH</scp>‐1 and <scp>MPI</scp> allozyme variation is not reflected in the corresponding <scp>DNA</scp> sequences |
title_full_unstemmed |
Fin whale <scp>MDH</scp>‐1 and <scp>MPI</scp> allozyme variation is not reflected in the corresponding <scp>DNA</scp> sequences |
title_sort |
fin whale <scp>mdh</scp>‐1 and <scp>mpi</scp> allozyme variation is not reflected in the corresponding <scp>dna</scp> sequences |
publisher |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.1002/ece3.1046 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fece3.1046 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.1046 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ece3.1046 |
genre |
Balaenoptera physalus Fin whale North Atlantic |
genre_facet |
Balaenoptera physalus Fin whale North Atlantic |
op_source |
Ecology and Evolution volume 4, issue 10, page 1787-1803 ISSN 2045-7758 2045-7758 |
op_rights |
http://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.1002/ece3.1046 |
container_title |
Ecology and Evolution |
container_volume |
4 |
container_issue |
10 |
container_start_page |
1787 |
op_container_end_page |
1803 |
_version_ |
1793765924465016832 |