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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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/3097190 2023-11-12T04:18:49+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, Marcus Thomas Pius Olsen, Morten Tange Møller, Peter Daniel Rask 2023 application/pdf https://hdl.handle.net/11250/3097190 https://doi.org/10.1016/j.fishres.2023.106846 eng eng Elsevier Fisheries Research. 2023, 268 . urn:issn:0165-7836 https://hdl.handle.net/11250/3097190 https://doi.org/10.1016/j.fishres.2023.106846 cristin:2179819 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no 0 268 Fisheries Research Peer reviewed Journal article 2023 ftntnutrondheimi https://doi.org/10.1016/j.fishres.2023.106846 2023-10-25T22:46:36Z 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. publishedVersion Article in Journal/Newspaper Ice Sheet NTNU Open Archive (Norwegian University of Science and Technology) Fisheries Research 268 106846 |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
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. publishedVersion |
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, Marcus Thomas Pius Olsen, Morten Tange Møller, Peter Daniel 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, Marcus Thomas Pius Olsen, Morten Tange Møller, Peter Daniel 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, Marcus Thomas Pius Olsen, Morten Tange Møller, Peter Daniel 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://hdl.handle.net/11250/3097190 https://doi.org/10.1016/j.fishres.2023.106846 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
0 268 Fisheries Research |
op_relation |
Fisheries Research. 2023, 268 . urn:issn:0165-7836 https://hdl.handle.net/11250/3097190 https://doi.org/10.1016/j.fishres.2023.106846 cristin:2179819 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no |
op_doi |
https://doi.org/10.1016/j.fishres.2023.106846 |
container_title |
Fisheries Research |
container_volume |
268 |
container_start_page |
106846 |
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1782335362856648704 |