Pole-to-pole biogeography of surface and deep marine bacterial communities
The Antarctic and Arctic regions offer a unique opportunity to test factors shaping biogeography of marine microbial communities because these regions are geographically far apart, yet share similar selection pressures. Here, we report a comprehensive comparison of bacterioplankton diversity between...
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ftpubmed:oai:pubmedcentral.nih.gov:3491513 2023-05-15T13:32:54+02:00 Pole-to-pole biogeography of surface and deep marine bacterial communities Ghiglione, Jean-François Galand, Pierre E. Pommier, Thomas Pedrós-Alió, Carlos Maas, Elizabeth W. Bakker, Kevin Bertilson, Stefan Kirchman, David L. Lovejoy, Connie Yager, Patricia L. Murray, Alison E. 2012-10-23 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3491513 http://www.ncbi.nlm.nih.gov/pubmed/23045668 https://doi.org/10.1073/pnas.1208160109 en eng National Academy of Sciences http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3491513 http://www.ncbi.nlm.nih.gov/pubmed/23045668 http://dx.doi.org/10.1073/pnas.1208160109 Freely available online through the PNAS open access option. Biological Sciences Text 2012 ftpubmed https://doi.org/10.1073/pnas.1208160109 2013-09-04T15:34:22Z The Antarctic and Arctic regions offer a unique opportunity to test factors shaping biogeography of marine microbial communities because these regions are geographically far apart, yet share similar selection pressures. Here, we report a comprehensive comparison of bacterioplankton diversity between polar oceans, using standardized methods for pyrosequencing the V6 region of the small subunit ribosomal (SSU) rRNA gene. Bacterial communities from lower latitude oceans were included, providing a global perspective. A clear difference between Southern and Arctic Ocean surface communities was evident, with 78% of operational taxonomic units (OTUs) unique to the Southern Ocean and 70% unique to the Arctic Ocean. Although polar ocean bacterial communities were more similar to each other than to lower latitude pelagic communities, analyses of depths, seasons, and coastal vs. open waters, the Southern and Arctic Ocean bacterioplankton communities consistently clustered separately from each other. Coastal surface Southern and Arctic Ocean communities were more dissimilar from their respective open ocean communities. In contrast, deep ocean communities differed less between poles and lower latitude deep waters and displayed different diversity patterns compared with the surface. In addition, estimated diversity (Chao1) for surface and deep communities did not correlate significantly with latitude or temperature. Our results suggest differences in environmental conditions at the poles and different selection mechanisms controlling surface and deep ocean community structure and diversity. Surface bacterioplankton may be subjected to more short-term, variable conditions, whereas deep communities appear to be structured by longer water-mass residence time and connectivity through ocean circulation. Text Antarc* Antarctic Arctic Arctic Ocean Southern Ocean PubMed Central (PMC) Antarctic Arctic Arctic Ocean Southern Ocean The Antarctic Proceedings of the National Academy of Sciences 109 43 17633 17638 |
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English |
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Biological Sciences |
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Biological Sciences Ghiglione, Jean-François Galand, Pierre E. Pommier, Thomas Pedrós-Alió, Carlos Maas, Elizabeth W. Bakker, Kevin Bertilson, Stefan Kirchman, David L. Lovejoy, Connie Yager, Patricia L. Murray, Alison E. Pole-to-pole biogeography of surface and deep marine bacterial communities |
topic_facet |
Biological Sciences |
description |
The Antarctic and Arctic regions offer a unique opportunity to test factors shaping biogeography of marine microbial communities because these regions are geographically far apart, yet share similar selection pressures. Here, we report a comprehensive comparison of bacterioplankton diversity between polar oceans, using standardized methods for pyrosequencing the V6 region of the small subunit ribosomal (SSU) rRNA gene. Bacterial communities from lower latitude oceans were included, providing a global perspective. A clear difference between Southern and Arctic Ocean surface communities was evident, with 78% of operational taxonomic units (OTUs) unique to the Southern Ocean and 70% unique to the Arctic Ocean. Although polar ocean bacterial communities were more similar to each other than to lower latitude pelagic communities, analyses of depths, seasons, and coastal vs. open waters, the Southern and Arctic Ocean bacterioplankton communities consistently clustered separately from each other. Coastal surface Southern and Arctic Ocean communities were more dissimilar from their respective open ocean communities. In contrast, deep ocean communities differed less between poles and lower latitude deep waters and displayed different diversity patterns compared with the surface. In addition, estimated diversity (Chao1) for surface and deep communities did not correlate significantly with latitude or temperature. Our results suggest differences in environmental conditions at the poles and different selection mechanisms controlling surface and deep ocean community structure and diversity. Surface bacterioplankton may be subjected to more short-term, variable conditions, whereas deep communities appear to be structured by longer water-mass residence time and connectivity through ocean circulation. |
format |
Text |
author |
Ghiglione, Jean-François Galand, Pierre E. Pommier, Thomas Pedrós-Alió, Carlos Maas, Elizabeth W. Bakker, Kevin Bertilson, Stefan Kirchman, David L. Lovejoy, Connie Yager, Patricia L. Murray, Alison E. |
author_facet |
Ghiglione, Jean-François Galand, Pierre E. Pommier, Thomas Pedrós-Alió, Carlos Maas, Elizabeth W. Bakker, Kevin Bertilson, Stefan Kirchman, David L. Lovejoy, Connie Yager, Patricia L. Murray, Alison E. |
author_sort |
Ghiglione, Jean-François |
title |
Pole-to-pole biogeography of surface and deep marine bacterial communities |
title_short |
Pole-to-pole biogeography of surface and deep marine bacterial communities |
title_full |
Pole-to-pole biogeography of surface and deep marine bacterial communities |
title_fullStr |
Pole-to-pole biogeography of surface and deep marine bacterial communities |
title_full_unstemmed |
Pole-to-pole biogeography of surface and deep marine bacterial communities |
title_sort |
pole-to-pole biogeography of surface and deep marine bacterial communities |
publisher |
National Academy of Sciences |
publishDate |
2012 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3491513 http://www.ncbi.nlm.nih.gov/pubmed/23045668 https://doi.org/10.1073/pnas.1208160109 |
geographic |
Antarctic Arctic Arctic Ocean Southern Ocean The Antarctic |
geographic_facet |
Antarctic Arctic Arctic Ocean Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Arctic Arctic Ocean Southern Ocean |
genre_facet |
Antarc* Antarctic Arctic Arctic Ocean Southern Ocean |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3491513 http://www.ncbi.nlm.nih.gov/pubmed/23045668 http://dx.doi.org/10.1073/pnas.1208160109 |
op_rights |
Freely available online through the PNAS open access option. |
op_doi |
https://doi.org/10.1073/pnas.1208160109 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
109 |
container_issue |
43 |
container_start_page |
17633 |
op_container_end_page |
17638 |
_version_ |
1766036863452184576 |