Ancient marine sediment DNA reveals diatom transition in Antarctica
Antarctica is one of the most vulnerable regions to climate change on Earth and studying the past and present responses of this polar marine ecosystem to environmental change is a matter of urgency. Sedimentary ancient DNA (sedaDNA) analysis can provide such insights into past ecosystem-wide changes...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9527250/ http://www.ncbi.nlm.nih.gov/pubmed/36184671 https://doi.org/10.1038/s41467-022-33494-4 |
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ftpubmed:oai:pubmedcentral.nih.gov:9527250 2023-05-15T13:54:44+02:00 Ancient marine sediment DNA reveals diatom transition in Antarctica Armbrecht, Linda Weber, Michael E. Raymo, Maureen E. Peck, Victoria L. Williams, Trevor Warnock, Jonathan Kato, Yuji Hernández-Almeida, Iván Hoem, Frida Reilly, Brendan Hemming, Sidney Bailey, Ian Martos, Yasmina M. Gutjahr, Marcus Percuoco, Vincent Allen, Claire Brachfeld, Stefanie Cardillo, Fabricio G. Du, Zhiheng Fauth, Gerson Fogwill, Chris Garcia, Marga Glüder, Anna Guitard, Michelle Hwang, Ji-Hwan Iizuka, Mutsumi Kenlee, Bridget O’Connell, Suzanne Pérez, Lara F. Ronge, Thomas A. Seki, Osamu Tauxe, Lisa Tripathi, Shubham Zheng, Xufeng 2022-10-02 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9527250/ http://www.ncbi.nlm.nih.gov/pubmed/36184671 https://doi.org/10.1038/s41467-022-33494-4 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9527250/ http://www.ncbi.nlm.nih.gov/pubmed/36184671 http://dx.doi.org/10.1038/s41467-022-33494-4 © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . CC-BY Nat Commun Article Text 2022 ftpubmed https://doi.org/10.1038/s41467-022-33494-4 2022-10-09T00:39:42Z Antarctica is one of the most vulnerable regions to climate change on Earth and studying the past and present responses of this polar marine ecosystem to environmental change is a matter of urgency. Sedimentary ancient DNA (sedaDNA) analysis can provide such insights into past ecosystem-wide changes. Here we present authenticated (through extensive contamination control and sedaDNA damage analysis) metagenomic marine eukaryote sedaDNA from the Scotia Sea region acquired during IODP Expedition 382. We also provide a marine eukaryote sedaDNA record of ~1 Mio. years and diatom and chlorophyte sedaDNA dating back to ~540 ka (using taxonomic marker genes SSU, LSU, psbO). We find evidence of warm phases being associated with high relative diatom abundance, and a marked transition from diatoms comprising <10% of all eukaryotes prior to ~14.5 ka, to ~50% after this time, i.e., following Meltwater Pulse 1A, alongside a composition change from sea-ice to open-ocean species. Our study demonstrates that sedaDNA tools can be expanded to hundreds of thousands of years, opening the pathway to the study of ecosystem-wide marine shifts and paleo-productivity phases throughout multiple glacial-interglacial cycles. Text Antarc* Antarctica Scotia Sea Sea ice PubMed Central (PMC) Scotia Sea Nature Communications 13 1 |
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Article Armbrecht, Linda Weber, Michael E. Raymo, Maureen E. Peck, Victoria L. Williams, Trevor Warnock, Jonathan Kato, Yuji Hernández-Almeida, Iván Hoem, Frida Reilly, Brendan Hemming, Sidney Bailey, Ian Martos, Yasmina M. Gutjahr, Marcus Percuoco, Vincent Allen, Claire Brachfeld, Stefanie Cardillo, Fabricio G. Du, Zhiheng Fauth, Gerson Fogwill, Chris Garcia, Marga Glüder, Anna Guitard, Michelle Hwang, Ji-Hwan Iizuka, Mutsumi Kenlee, Bridget O’Connell, Suzanne Pérez, Lara F. Ronge, Thomas A. Seki, Osamu Tauxe, Lisa Tripathi, Shubham Zheng, Xufeng Ancient marine sediment DNA reveals diatom transition in Antarctica |
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Antarctica is one of the most vulnerable regions to climate change on Earth and studying the past and present responses of this polar marine ecosystem to environmental change is a matter of urgency. Sedimentary ancient DNA (sedaDNA) analysis can provide such insights into past ecosystem-wide changes. Here we present authenticated (through extensive contamination control and sedaDNA damage analysis) metagenomic marine eukaryote sedaDNA from the Scotia Sea region acquired during IODP Expedition 382. We also provide a marine eukaryote sedaDNA record of ~1 Mio. years and diatom and chlorophyte sedaDNA dating back to ~540 ka (using taxonomic marker genes SSU, LSU, psbO). We find evidence of warm phases being associated with high relative diatom abundance, and a marked transition from diatoms comprising <10% of all eukaryotes prior to ~14.5 ka, to ~50% after this time, i.e., following Meltwater Pulse 1A, alongside a composition change from sea-ice to open-ocean species. Our study demonstrates that sedaDNA tools can be expanded to hundreds of thousands of years, opening the pathway to the study of ecosystem-wide marine shifts and paleo-productivity phases throughout multiple glacial-interglacial cycles. |
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Text |
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Armbrecht, Linda Weber, Michael E. Raymo, Maureen E. Peck, Victoria L. Williams, Trevor Warnock, Jonathan Kato, Yuji Hernández-Almeida, Iván Hoem, Frida Reilly, Brendan Hemming, Sidney Bailey, Ian Martos, Yasmina M. Gutjahr, Marcus Percuoco, Vincent Allen, Claire Brachfeld, Stefanie Cardillo, Fabricio G. Du, Zhiheng Fauth, Gerson Fogwill, Chris Garcia, Marga Glüder, Anna Guitard, Michelle Hwang, Ji-Hwan Iizuka, Mutsumi Kenlee, Bridget O’Connell, Suzanne Pérez, Lara F. Ronge, Thomas A. Seki, Osamu Tauxe, Lisa Tripathi, Shubham Zheng, Xufeng |
author_facet |
Armbrecht, Linda Weber, Michael E. Raymo, Maureen E. Peck, Victoria L. Williams, Trevor Warnock, Jonathan Kato, Yuji Hernández-Almeida, Iván Hoem, Frida Reilly, Brendan Hemming, Sidney Bailey, Ian Martos, Yasmina M. Gutjahr, Marcus Percuoco, Vincent Allen, Claire Brachfeld, Stefanie Cardillo, Fabricio G. Du, Zhiheng Fauth, Gerson Fogwill, Chris Garcia, Marga Glüder, Anna Guitard, Michelle Hwang, Ji-Hwan Iizuka, Mutsumi Kenlee, Bridget O’Connell, Suzanne Pérez, Lara F. Ronge, Thomas A. Seki, Osamu Tauxe, Lisa Tripathi, Shubham Zheng, Xufeng |
author_sort |
Armbrecht, Linda |
title |
Ancient marine sediment DNA reveals diatom transition in Antarctica |
title_short |
Ancient marine sediment DNA reveals diatom transition in Antarctica |
title_full |
Ancient marine sediment DNA reveals diatom transition in Antarctica |
title_fullStr |
Ancient marine sediment DNA reveals diatom transition in Antarctica |
title_full_unstemmed |
Ancient marine sediment DNA reveals diatom transition in Antarctica |
title_sort |
ancient marine sediment dna reveals diatom transition in antarctica |
publisher |
Nature Publishing Group UK |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9527250/ http://www.ncbi.nlm.nih.gov/pubmed/36184671 https://doi.org/10.1038/s41467-022-33494-4 |
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Scotia Sea |
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Scotia Sea |
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Antarc* Antarctica Scotia Sea Sea ice |
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Antarc* Antarctica Scotia Sea Sea ice |
op_source |
Nat Commun |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9527250/ http://www.ncbi.nlm.nih.gov/pubmed/36184671 http://dx.doi.org/10.1038/s41467-022-33494-4 |
op_rights |
© The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
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CC-BY |
op_doi |
https://doi.org/10.1038/s41467-022-33494-4 |
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Nature Communications |
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13 |
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1766260823405101056 |