Data from: Genome architecture enables local adaptation of Atlantic cod despite high connectivity
Adaptation to local conditions is a fundamental process in evolution; however, mechanisms maintaining local adaptation despite high gene flow are still poorly understood. Marine ecosystems provide a wide array of diverse habitats that frequently promote ecological adaptation even in species characte...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:97629 2023-07-02T03:31:39+02:00 Data from: Genome architecture enables local adaptation of Atlantic cod despite high connectivity Barth, Julia M. I. Berg, Paul R. Jonsson, Per R. Bonanomi, Sara Corell, Hanna Hemmer-Hansen, Jakob Jakobsen, Kjetill S. Johannesson, Kerstin Jorde, Per Erik Knutsen, Halvor Moksnes, Per-Olav Star, Bastiaan Stenseth, Nils Chr. Svedäng, Henrik Jentoft, Sissel André, Carl 2017-06-15T07:18:20.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-mv-s47t https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:97629 unknown doi:10.5061/dryad.3f1c8/1 doi:10.5061/dryad.3f1c8/2 doi:10.1111/mec.14207 http://nbn-resolving.org/urn:nbn:nl:ui:13-mv-s47t doi:10.5061/dryad.3f1c8 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:97629 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2017 ftdans https://doi.org/10.5061/dryad.3f1c8/110.5061/dryad.3f1c8/210.1111/mec.1420710.5061/dryad.3f1c8 2023-06-13T13:24:39Z Adaptation to local conditions is a fundamental process in evolution; however, mechanisms maintaining local adaptation despite high gene flow are still poorly understood. Marine ecosystems provide a wide array of diverse habitats that frequently promote ecological adaptation even in species characterized by strong levels of gene flow. As one example, populations of the marine fish Atlantic cod (Gadus morhua) are highly connected due to immense dispersal capabilities but nevertheless show local adaptation in several key traits. By combining population genomic analyses based on 12K single nucleotide polymorphisms with larval dispersal patterns inferred using a biophysical ocean model, we show that Atlantic cod individuals residing in sheltered estuarine habitats of Scandinavian fjords mainly belong to offshore oceanic populations with considerable connectivity between these diverse ecosystems. Nevertheless, we also find evidence for discrete fjord populations that are genetically differentiated from offshore populations, indicative of local adaptation, the degree of which appears to be influenced by connectivity. Analyses of the genomic architecture reveal a significant overrepresentation of a large ~5 Mb chromosomal rearrangement in fjord cod, previously proposed to comprise genes critical for the survival at low salinities. This suggests that despite considerable connectivity with offshore populations, local adaptation to fjord environments may be enabled by suppression of recombination in the rearranged region. Our study provides new insights into the potential of local adaptation in high gene flow species within fine geographical scales and highlights the importance of genome architecture in analyses of ecological adaptation. Other/Unknown Material atlantic cod Gadus morhua Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
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Open Polar |
collection |
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
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ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care Barth, Julia M. I. Berg, Paul R. Jonsson, Per R. Bonanomi, Sara Corell, Hanna Hemmer-Hansen, Jakob Jakobsen, Kjetill S. Johannesson, Kerstin Jorde, Per Erik Knutsen, Halvor Moksnes, Per-Olav Star, Bastiaan Stenseth, Nils Chr. Svedäng, Henrik Jentoft, Sissel André, Carl Data from: Genome architecture enables local adaptation of Atlantic cod despite high connectivity |
topic_facet |
Life sciences medicine and health care |
description |
Adaptation to local conditions is a fundamental process in evolution; however, mechanisms maintaining local adaptation despite high gene flow are still poorly understood. Marine ecosystems provide a wide array of diverse habitats that frequently promote ecological adaptation even in species characterized by strong levels of gene flow. As one example, populations of the marine fish Atlantic cod (Gadus morhua) are highly connected due to immense dispersal capabilities but nevertheless show local adaptation in several key traits. By combining population genomic analyses based on 12K single nucleotide polymorphisms with larval dispersal patterns inferred using a biophysical ocean model, we show that Atlantic cod individuals residing in sheltered estuarine habitats of Scandinavian fjords mainly belong to offshore oceanic populations with considerable connectivity between these diverse ecosystems. Nevertheless, we also find evidence for discrete fjord populations that are genetically differentiated from offshore populations, indicative of local adaptation, the degree of which appears to be influenced by connectivity. Analyses of the genomic architecture reveal a significant overrepresentation of a large ~5 Mb chromosomal rearrangement in fjord cod, previously proposed to comprise genes critical for the survival at low salinities. This suggests that despite considerable connectivity with offshore populations, local adaptation to fjord environments may be enabled by suppression of recombination in the rearranged region. Our study provides new insights into the potential of local adaptation in high gene flow species within fine geographical scales and highlights the importance of genome architecture in analyses of ecological adaptation. |
author |
Barth, Julia M. I. Berg, Paul R. Jonsson, Per R. Bonanomi, Sara Corell, Hanna Hemmer-Hansen, Jakob Jakobsen, Kjetill S. Johannesson, Kerstin Jorde, Per Erik Knutsen, Halvor Moksnes, Per-Olav Star, Bastiaan Stenseth, Nils Chr. Svedäng, Henrik Jentoft, Sissel André, Carl |
author_facet |
Barth, Julia M. I. Berg, Paul R. Jonsson, Per R. Bonanomi, Sara Corell, Hanna Hemmer-Hansen, Jakob Jakobsen, Kjetill S. Johannesson, Kerstin Jorde, Per Erik Knutsen, Halvor Moksnes, Per-Olav Star, Bastiaan Stenseth, Nils Chr. Svedäng, Henrik Jentoft, Sissel André, Carl |
author_sort |
Barth, Julia M. I. |
title |
Data from: Genome architecture enables local adaptation of Atlantic cod despite high connectivity |
title_short |
Data from: Genome architecture enables local adaptation of Atlantic cod despite high connectivity |
title_full |
Data from: Genome architecture enables local adaptation of Atlantic cod despite high connectivity |
title_fullStr |
Data from: Genome architecture enables local adaptation of Atlantic cod despite high connectivity |
title_full_unstemmed |
Data from: Genome architecture enables local adaptation of Atlantic cod despite high connectivity |
title_sort |
data from: genome architecture enables local adaptation of atlantic cod despite high connectivity |
publishDate |
2017 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-mv-s47t https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:97629 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_relation |
doi:10.5061/dryad.3f1c8/1 doi:10.5061/dryad.3f1c8/2 doi:10.1111/mec.14207 http://nbn-resolving.org/urn:nbn:nl:ui:13-mv-s47t doi:10.5061/dryad.3f1c8 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:97629 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.3f1c8/110.5061/dryad.3f1c8/210.1111/mec.1420710.5061/dryad.3f1c8 |
_version_ |
1770271021069238272 |