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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ftzenodo:oai:zenodo.org:4954564 2023-06-06T11:51:51+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 2017-06-15 https://zenodo.org/record/4954564 https://doi.org/10.5061/dryad.3f1c8 unknown doi:10.1111/mec.14207 https://zenodo.org/communities/dryad https://zenodo.org/record/4954564 https://doi.org/10.5061/dryad.3f1c8 oai:zenodo.org:4954564 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Population Divergence biophysical modeling chromosomal inversion info:eu-repo/semantics/other dataset 2017 ftzenodo https://doi.org/10.5061/dryad.3f1c810.1111/mec.14207 2023-04-13T21:20:20Z 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. SNP array data including linked loci (7,783 SNPs)SNP array data of 527 Atlantic cod (Gadus morhua), genotyped at 7,783 loci (dataset including linked SNPs). Genepop format (http://genepop.curtin.edu.au/help_input.html): first line: datafile information; second line: loci names (dbSNP ... Dataset atlantic cod Gadus morhua Zenodo |
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Population Divergence biophysical modeling chromosomal inversion |
spellingShingle |
Population Divergence biophysical modeling chromosomal inversion 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 |
Population Divergence biophysical modeling chromosomal inversion |
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. SNP array data including linked loci (7,783 SNPs)SNP array data of 527 Atlantic cod (Gadus morhua), genotyped at 7,783 loci (dataset including linked SNPs). Genepop format (http://genepop.curtin.edu.au/help_input.html): first line: datafile information; second line: loci names (dbSNP ... |
format |
Dataset |
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 |
https://zenodo.org/record/4954564 https://doi.org/10.5061/dryad.3f1c8 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_relation |
doi:10.1111/mec.14207 https://zenodo.org/communities/dryad https://zenodo.org/record/4954564 https://doi.org/10.5061/dryad.3f1c8 oai:zenodo.org:4954564 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.3f1c810.1111/mec.14207 |
_version_ |
1767957660316991488 |