Unique mitochondrial DNA lineages in Irish stickleback populations: cryptic refugium or rapid recolonization?
Repeated recolonization of freshwater environments following Pleistocene glaciations has played a major role in the evolution and adaptation of anadromous taxa. Located at the western fringe of Europe, Ireland and Britain were likely recolonized rapidly by anadromous fishes from the North Atlantic f...
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ftpubmed:oai:pubmedcentral.nih.gov:4203293 2023-05-15T17:34:39+02:00 Unique mitochondrial DNA lineages in Irish stickleback populations: cryptic refugium or rapid recolonization? Ravinet, Mark Harrod, Chris Eizaguirre, Christophe Prodöhl, Paulo A 2014-06 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4203293 https://doi.org/10.1002/ece3.853 en eng Blackwell Publishing Ltd http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://dx.doi.org/10.1002/ece3.853 © 2013 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. http://creativecommons.org/licenses/by/3.0/ This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY Original Research Text 2014 ftpubmed https://doi.org/10.1002/ece3.853 2014-11-02T01:33:31Z Repeated recolonization of freshwater environments following Pleistocene glaciations has played a major role in the evolution and adaptation of anadromous taxa. Located at the western fringe of Europe, Ireland and Britain were likely recolonized rapidly by anadromous fishes from the North Atlantic following the last glacial maximum (LGM). While the presence of unique mitochondrial haplotypes in Ireland suggests that a cryptic northern refugium may have played a role in recolonization, no explicit test of this hypothesis has been conducted. The three-spined stickleback is native and ubiquitous to aquatic ecosystems throughout Ireland, making it an excellent model species with which to examine the biogeographical history of anadromous fishes in the region. We used mitochondrial and microsatellite markers to examine the presence of divergent evolutionary lineages and to assess broad-scale patterns of geographical clustering among postglacially isolated populations. Our results confirm that Ireland is a region of secondary contact for divergent mitochondrial lineages and that endemic haplotypes occur in populations in Central and Southern Ireland. To test whether a putative Irish lineage arose from a cryptic Irish refugium, we used approximate Bayesian computation (ABC). However, we found no support for this hypothesis. Instead, the Irish lineage likely diverged from the European lineage as a result of postglacial isolation of freshwater populations by rising sea levels. These findings emphasize the need to rigorously test biogeographical hypothesis and contribute further evidence that postglacial processes may have shaped genetic diversity in temperate fauna. Text North Atlantic PubMed Central (PMC) Ecology and Evolution 4 12 2488 2504 |
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Original Research Ravinet, Mark Harrod, Chris Eizaguirre, Christophe Prodöhl, Paulo A Unique mitochondrial DNA lineages in Irish stickleback populations: cryptic refugium or rapid recolonization? |
topic_facet |
Original Research |
description |
Repeated recolonization of freshwater environments following Pleistocene glaciations has played a major role in the evolution and adaptation of anadromous taxa. Located at the western fringe of Europe, Ireland and Britain were likely recolonized rapidly by anadromous fishes from the North Atlantic following the last glacial maximum (LGM). While the presence of unique mitochondrial haplotypes in Ireland suggests that a cryptic northern refugium may have played a role in recolonization, no explicit test of this hypothesis has been conducted. The three-spined stickleback is native and ubiquitous to aquatic ecosystems throughout Ireland, making it an excellent model species with which to examine the biogeographical history of anadromous fishes in the region. We used mitochondrial and microsatellite markers to examine the presence of divergent evolutionary lineages and to assess broad-scale patterns of geographical clustering among postglacially isolated populations. Our results confirm that Ireland is a region of secondary contact for divergent mitochondrial lineages and that endemic haplotypes occur in populations in Central and Southern Ireland. To test whether a putative Irish lineage arose from a cryptic Irish refugium, we used approximate Bayesian computation (ABC). However, we found no support for this hypothesis. Instead, the Irish lineage likely diverged from the European lineage as a result of postglacial isolation of freshwater populations by rising sea levels. These findings emphasize the need to rigorously test biogeographical hypothesis and contribute further evidence that postglacial processes may have shaped genetic diversity in temperate fauna. |
format |
Text |
author |
Ravinet, Mark Harrod, Chris Eizaguirre, Christophe Prodöhl, Paulo A |
author_facet |
Ravinet, Mark Harrod, Chris Eizaguirre, Christophe Prodöhl, Paulo A |
author_sort |
Ravinet, Mark |
title |
Unique mitochondrial DNA lineages in Irish stickleback populations: cryptic refugium or rapid recolonization? |
title_short |
Unique mitochondrial DNA lineages in Irish stickleback populations: cryptic refugium or rapid recolonization? |
title_full |
Unique mitochondrial DNA lineages in Irish stickleback populations: cryptic refugium or rapid recolonization? |
title_fullStr |
Unique mitochondrial DNA lineages in Irish stickleback populations: cryptic refugium or rapid recolonization? |
title_full_unstemmed |
Unique mitochondrial DNA lineages in Irish stickleback populations: cryptic refugium or rapid recolonization? |
title_sort |
unique mitochondrial dna lineages in irish stickleback populations: cryptic refugium or rapid recolonization? |
publisher |
Blackwell Publishing Ltd |
publishDate |
2014 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4203293 https://doi.org/10.1002/ece3.853 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://dx.doi.org/10.1002/ece3.853 |
op_rights |
© 2013 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. http://creativecommons.org/licenses/by/3.0/ This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
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CC-BY |
op_doi |
https://doi.org/10.1002/ece3.853 |
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Ecology and Evolution |
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4 |
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12 |
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2488 |
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2504 |
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