Uncovering neutral and adaptive genomic differentiation among European perch with brackish water and freshwater origin in the western Baltic Sea region
Environmental variation across the range of wild species can lead to local adaptations. The Baltic Sea was formed when the Fenno-Scandian ice sheet retreated around 12 thousand years ago, creating a new brackish water habitat colonised by both marine and freshwater fish species. The European perch (...
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ftuglasgow:oai:eprints.gla.ac.uk:310921 2024-01-14T10:07:44+01:00 Uncovering neutral and adaptive genomic differentiation among European perch with brackish water and freshwater origin in the western Baltic Sea region Skovrind, Mikkel Pacheco, George Christensen, Emil Aputsiaq Flindt Gopalakrishnan, Shyam Fietz, Katharina Holm-Hansen, Tore Hejl Vieira, Filipe Garrett Krag, Marcus Anders Carl, Henrik Gilbert, M.Thomas P. Olsen, Morten Tange Møller, Peter Rask 2023-12 text https://eprints.gla.ac.uk/310921/ https://eprints.gla.ac.uk/310921/1/310921.pdf en eng Elsevier https://eprints.gla.ac.uk/310921/1/310921.pdf Skovrind, M. et al. (2023) Uncovering neutral and adaptive genomic differentiation among European perch with brackish water and freshwater origin in the western Baltic Sea region. Fisheries Research <https://eprints.gla.ac.uk/view/journal_volume/Fisheries_Research.html>, 268, 106846. (doi:10.1016/j.fishres.2023.106846 <https://doi.org/10.1016/j.fishres.2023.106846>) cc_by_4 Articles PeerReviewed 2023 ftuglasgow https://doi.org/10.1016/j.fishres.2023.106846 2023-12-21T23:09:13Z Environmental variation across the range of wild species can lead to local adaptations. The Baltic Sea was formed when the Fenno-Scandian ice sheet retreated around 12 thousand years ago, creating a new brackish water habitat colonised by both marine and freshwater fish species. The European perch (Perca fluviatilis) is a predatory freshwater fish with a large geographical distribution across Eurasia, where it inhabits a wide range of environmental niches. In the Baltic Sea region it has even developed a specialised brackish water perch variant that can tolerate environmental salinity levels, which are lethal to freshwater perch. However, very little is known about the underlying mechanisms facilitating the colonisation and adaptation of perch to the Baltic Sea. Here, we use Genotyping-By-Sequencing data from six freshwater and six brackish water localities to disclose the evolutionary relationship between freshwater and brackish water perch. Our results show that the brackish water perch occurs in multiple distinct genetic clusters. We find that gene flow between brackish water perch with full access to the sea likely led to lower levels of differentiation and higher diversity than in freshwater perch. Selection analyses suggest that genomic adaptation played a role in the colonisation of the Baltic Sea and that the top three regions under selection harbour salinity tolerance genes. We complete by discussing the implications of our findings for management of brackish water perch in the western Baltic sea. Article in Journal/Newspaper Ice Sheet University of Glasgow: Enlighten - Publications Fisheries Research 268 106846 |
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Open Polar |
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University of Glasgow: Enlighten - Publications |
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ftuglasgow |
language |
English |
description |
Environmental variation across the range of wild species can lead to local adaptations. The Baltic Sea was formed when the Fenno-Scandian ice sheet retreated around 12 thousand years ago, creating a new brackish water habitat colonised by both marine and freshwater fish species. The European perch (Perca fluviatilis) is a predatory freshwater fish with a large geographical distribution across Eurasia, where it inhabits a wide range of environmental niches. In the Baltic Sea region it has even developed a specialised brackish water perch variant that can tolerate environmental salinity levels, which are lethal to freshwater perch. However, very little is known about the underlying mechanisms facilitating the colonisation and adaptation of perch to the Baltic Sea. Here, we use Genotyping-By-Sequencing data from six freshwater and six brackish water localities to disclose the evolutionary relationship between freshwater and brackish water perch. Our results show that the brackish water perch occurs in multiple distinct genetic clusters. We find that gene flow between brackish water perch with full access to the sea likely led to lower levels of differentiation and higher diversity than in freshwater perch. Selection analyses suggest that genomic adaptation played a role in the colonisation of the Baltic Sea and that the top three regions under selection harbour salinity tolerance genes. We complete by discussing the implications of our findings for management of brackish water perch in the western Baltic sea. |
format |
Article in Journal/Newspaper |
author |
Skovrind, Mikkel Pacheco, George Christensen, Emil Aputsiaq Flindt Gopalakrishnan, Shyam Fietz, Katharina Holm-Hansen, Tore Hejl Vieira, Filipe Garrett Krag, Marcus Anders Carl, Henrik Gilbert, M.Thomas P. Olsen, Morten Tange Møller, Peter Rask |
spellingShingle |
Skovrind, Mikkel Pacheco, George Christensen, Emil Aputsiaq Flindt Gopalakrishnan, Shyam Fietz, Katharina Holm-Hansen, Tore Hejl Vieira, Filipe Garrett Krag, Marcus Anders Carl, Henrik Gilbert, M.Thomas P. Olsen, Morten Tange Møller, Peter Rask Uncovering neutral and adaptive genomic differentiation among European perch with brackish water and freshwater origin in the western Baltic Sea region |
author_facet |
Skovrind, Mikkel Pacheco, George Christensen, Emil Aputsiaq Flindt Gopalakrishnan, Shyam Fietz, Katharina Holm-Hansen, Tore Hejl Vieira, Filipe Garrett Krag, Marcus Anders Carl, Henrik Gilbert, M.Thomas P. Olsen, Morten Tange Møller, Peter Rask |
author_sort |
Skovrind, Mikkel |
title |
Uncovering neutral and adaptive genomic differentiation among European perch with brackish water and freshwater origin in the western Baltic Sea region |
title_short |
Uncovering neutral and adaptive genomic differentiation among European perch with brackish water and freshwater origin in the western Baltic Sea region |
title_full |
Uncovering neutral and adaptive genomic differentiation among European perch with brackish water and freshwater origin in the western Baltic Sea region |
title_fullStr |
Uncovering neutral and adaptive genomic differentiation among European perch with brackish water and freshwater origin in the western Baltic Sea region |
title_full_unstemmed |
Uncovering neutral and adaptive genomic differentiation among European perch with brackish water and freshwater origin in the western Baltic Sea region |
title_sort |
uncovering neutral and adaptive genomic differentiation among european perch with brackish water and freshwater origin in the western baltic sea region |
publisher |
Elsevier |
publishDate |
2023 |
url |
https://eprints.gla.ac.uk/310921/ https://eprints.gla.ac.uk/310921/1/310921.pdf |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
https://eprints.gla.ac.uk/310921/1/310921.pdf Skovrind, M. et al. (2023) Uncovering neutral and adaptive genomic differentiation among European perch with brackish water and freshwater origin in the western Baltic Sea region. Fisheries Research <https://eprints.gla.ac.uk/view/journal_volume/Fisheries_Research.html>, 268, 106846. (doi:10.1016/j.fishres.2023.106846 <https://doi.org/10.1016/j.fishres.2023.106846>) |
op_rights |
cc_by_4 |
op_doi |
https://doi.org/10.1016/j.fishres.2023.106846 |
container_title |
Fisheries Research |
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268 |
container_start_page |
106846 |
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1788062132006289408 |