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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Published in:Fisheries Research
Main Authors: 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
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier 2023
Subjects:
Online Access:https://eprints.gla.ac.uk/310921/
https://eprints.gla.ac.uk/310921/1/310921.pdf
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spelling 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
institution Open Polar
collection University of Glasgow: Enlighten - Publications
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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
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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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