Holocene deglaciation drove rapid genetic diversification of Atlantic walrus ...
Rapid global warming is severely impacting Arctic ecosystems and is predicted to transform the abundance, distribution, and genetic diversity of Arctic species, though these linkages are poorly understood. We address this gap in knowledge using palaeogenomics to examine how earlier periods of global...
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Dryad
2023
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Online Access: | https://dx.doi.org/10.5061/dryad.qbzkh18pp https://datadryad.org/stash/dataset/doi:10.5061/dryad.qbzkh18pp |
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ftdatacite:10.5061/dryad.qbzkh18pp 2024-06-09T07:43:36+00:00 Holocene deglaciation drove rapid genetic diversification of Atlantic walrus ... Ruiz Puerta, Emily Johana Keighley, Xénia Desjardins, Sean P. A. Gotfredsen, Anne Birgitte En Pan, Shyong Star, Bastiaan Boessenkool, Sanne Barrett, James Harold McCarthy, Morgan L. Andersen, Liselotte W. Born, Erik W. Howse, Lesley R. Szpak, Paul Pálsson, Snæbjörn Rufolo, Scott Malmquist, Hilmar J. Jordan, Peter Tange Olsen, Morten 2023 https://dx.doi.org/10.5061/dryad.qbzkh18pp https://datadryad.org/stash/dataset/doi:10.5061/dryad.qbzkh18pp en eng Dryad https://dx.doi.org/10.1098/rspb.2023.1349 Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 FOS Biological sciences Ancient DNA Arctic environmental change Marine mammals Biodiversity Odobenus rosmarus rosmarus General Agricultural and Biological Sciences General Environmental Science General Biochemistry, Genetics and Molecular Biology Dataset dataset 2023 ftdatacite https://doi.org/10.5061/dryad.qbzkh18pp10.1098/rspb.2023.1349 2024-05-13T11:16:38Z Rapid global warming is severely impacting Arctic ecosystems and is predicted to transform the abundance, distribution, and genetic diversity of Arctic species, though these linkages are poorly understood. We address this gap in knowledge using palaeogenomics to examine how earlier periods of global warming influenced the genetic diversity of Atlantic walrus (Odobenus rosmarus rosmarus), a species closely associated with sea ice and shallow-water habitats. We analysed 82 ancient and historical Atlantic walrus mitochondrial genomes (mitogenomes), including now-extinct populations in Iceland and the Canadian Maritimes, to reconstruct the Atlantic walrus’ response to Arctic deglaciation. Our results demonstrate that the phylogeography and genetic diversity of Atlantic walrus populations were initially shaped by the Last Glacial Maximum (LGM), surviving in distinct glacial refugia, and subsequently expanding rapidly in multiple migration waves during the late Pleistocene and early Holocene. The timing of ... : The 82 mitochondrial genomes were obtained from historical and ancient specimens collected from different museums around Europe and Canada. Of these, 28 were obtained from previous publications (Keighley et al. (2019)) and 10 samples originally from Svalbard obtained from Star et al. (2018). Ancient DNA laboratory work was undertaken at the Globe Institute from the University of Copenhagen, Denmark following stric aDNA laboratory guidelines. Shotgun sequencing was performed on a range of Illumina technologies (MiSeq, HiSeq 2500 and HiSeq 4000) at the Danish National High-throughput Sequencing Centre. Throughout all laboratory work, samples were randomly given a unique sample number, with different groupings for extraction, library build, amplification, and sequencing to ensure no clustering of samples from a particular locality or time period. Samples run on the Illumina HiSeq 4000 were dual-indexed due to the risk of index-hopping (Van der Valk et al. 2020). Reads were trimmed, filtered, and aligned using ... Dataset Arctic Global warming Iceland Odobenus rosmarus Sea ice Svalbard walrus* DataCite Metadata Store (German National Library of Science and Technology) Arctic Canada Svalbard |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
FOS Biological sciences Ancient DNA Arctic environmental change Marine mammals Biodiversity Odobenus rosmarus rosmarus General Agricultural and Biological Sciences General Environmental Science General Biochemistry, Genetics and Molecular Biology |
spellingShingle |
FOS Biological sciences Ancient DNA Arctic environmental change Marine mammals Biodiversity Odobenus rosmarus rosmarus General Agricultural and Biological Sciences General Environmental Science General Biochemistry, Genetics and Molecular Biology Ruiz Puerta, Emily Johana Keighley, Xénia Desjardins, Sean P. A. Gotfredsen, Anne Birgitte En Pan, Shyong Star, Bastiaan Boessenkool, Sanne Barrett, James Harold McCarthy, Morgan L. Andersen, Liselotte W. Born, Erik W. Howse, Lesley R. Szpak, Paul Pálsson, Snæbjörn Rufolo, Scott Malmquist, Hilmar J. Jordan, Peter Tange Olsen, Morten Holocene deglaciation drove rapid genetic diversification of Atlantic walrus ... |
topic_facet |
FOS Biological sciences Ancient DNA Arctic environmental change Marine mammals Biodiversity Odobenus rosmarus rosmarus General Agricultural and Biological Sciences General Environmental Science General Biochemistry, Genetics and Molecular Biology |
description |
Rapid global warming is severely impacting Arctic ecosystems and is predicted to transform the abundance, distribution, and genetic diversity of Arctic species, though these linkages are poorly understood. We address this gap in knowledge using palaeogenomics to examine how earlier periods of global warming influenced the genetic diversity of Atlantic walrus (Odobenus rosmarus rosmarus), a species closely associated with sea ice and shallow-water habitats. We analysed 82 ancient and historical Atlantic walrus mitochondrial genomes (mitogenomes), including now-extinct populations in Iceland and the Canadian Maritimes, to reconstruct the Atlantic walrus’ response to Arctic deglaciation. Our results demonstrate that the phylogeography and genetic diversity of Atlantic walrus populations were initially shaped by the Last Glacial Maximum (LGM), surviving in distinct glacial refugia, and subsequently expanding rapidly in multiple migration waves during the late Pleistocene and early Holocene. The timing of ... : The 82 mitochondrial genomes were obtained from historical and ancient specimens collected from different museums around Europe and Canada. Of these, 28 were obtained from previous publications (Keighley et al. (2019)) and 10 samples originally from Svalbard obtained from Star et al. (2018). Ancient DNA laboratory work was undertaken at the Globe Institute from the University of Copenhagen, Denmark following stric aDNA laboratory guidelines. Shotgun sequencing was performed on a range of Illumina technologies (MiSeq, HiSeq 2500 and HiSeq 4000) at the Danish National High-throughput Sequencing Centre. Throughout all laboratory work, samples were randomly given a unique sample number, with different groupings for extraction, library build, amplification, and sequencing to ensure no clustering of samples from a particular locality or time period. Samples run on the Illumina HiSeq 4000 were dual-indexed due to the risk of index-hopping (Van der Valk et al. 2020). Reads were trimmed, filtered, and aligned using ... |
format |
Dataset |
author |
Ruiz Puerta, Emily Johana Keighley, Xénia Desjardins, Sean P. A. Gotfredsen, Anne Birgitte En Pan, Shyong Star, Bastiaan Boessenkool, Sanne Barrett, James Harold McCarthy, Morgan L. Andersen, Liselotte W. Born, Erik W. Howse, Lesley R. Szpak, Paul Pálsson, Snæbjörn Rufolo, Scott Malmquist, Hilmar J. Jordan, Peter Tange Olsen, Morten |
author_facet |
Ruiz Puerta, Emily Johana Keighley, Xénia Desjardins, Sean P. A. Gotfredsen, Anne Birgitte En Pan, Shyong Star, Bastiaan Boessenkool, Sanne Barrett, James Harold McCarthy, Morgan L. Andersen, Liselotte W. Born, Erik W. Howse, Lesley R. Szpak, Paul Pálsson, Snæbjörn Rufolo, Scott Malmquist, Hilmar J. Jordan, Peter Tange Olsen, Morten |
author_sort |
Ruiz Puerta, Emily Johana |
title |
Holocene deglaciation drove rapid genetic diversification of Atlantic walrus ... |
title_short |
Holocene deglaciation drove rapid genetic diversification of Atlantic walrus ... |
title_full |
Holocene deglaciation drove rapid genetic diversification of Atlantic walrus ... |
title_fullStr |
Holocene deglaciation drove rapid genetic diversification of Atlantic walrus ... |
title_full_unstemmed |
Holocene deglaciation drove rapid genetic diversification of Atlantic walrus ... |
title_sort |
holocene deglaciation drove rapid genetic diversification of atlantic walrus ... |
publisher |
Dryad |
publishDate |
2023 |
url |
https://dx.doi.org/10.5061/dryad.qbzkh18pp https://datadryad.org/stash/dataset/doi:10.5061/dryad.qbzkh18pp |
geographic |
Arctic Canada Svalbard |
geographic_facet |
Arctic Canada Svalbard |
genre |
Arctic Global warming Iceland Odobenus rosmarus Sea ice Svalbard walrus* |
genre_facet |
Arctic Global warming Iceland Odobenus rosmarus Sea ice Svalbard walrus* |
op_relation |
https://dx.doi.org/10.1098/rspb.2023.1349 |
op_rights |
Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 |
op_doi |
https://doi.org/10.5061/dryad.qbzkh18pp10.1098/rspb.2023.1349 |
_version_ |
1801372460825706496 |