Global biogeography of SAR11 marine bacteria
The ubiquitous SAR11 bacterial clade is the most abundant type of organism in the worldĝ€™s oceans, but the reasons for its success are not fully elucidated. We analysed 128 surface marine metagenomes, including 37 new Antarctic metagenomes. The large size of the data set enabled internal transcribe...
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ftunivtsydney:oai:opus.lib.uts.edu.au:10453/87091 2023-05-15T13:51:50+02:00 Global biogeography of SAR11 marine bacteria Brown, MV Lauro, FM Demaere, MZ Muir, L Wilkins, D Thomas, T Riddle, MJ Fuhrman, JA Andrews-Pfannkoch, C Hoffman, JM McQuaid, JB Allen, A Rintoul, SR Cavicchioli, R 2012-01-01 application/pdf http://hdl.handle.net/10453/87091 unknown Molecular Systems Biology 10.1038/msb.2012.28 Molecular Systems Biology, 2012, 8 http://hdl.handle.net/10453/87091 Bioinformatics Alphaproteobacteria Sequence Alignment Marine Biology Temperature Climate Seawater Phylogeny Genome Bacterial Models Biological Antarctic Regions Metagenome Phylogeography Journal Article 2012 ftunivtsydney 2022-03-13T14:04:45Z The ubiquitous SAR11 bacterial clade is the most abundant type of organism in the worldĝ€™s oceans, but the reasons for its success are not fully elucidated. We analysed 128 surface marine metagenomes, including 37 new Antarctic metagenomes. The large size of the data set enabled internal transcribed spacer (ITS) regions to be obtained from the Southern polar region, enabling the first global characterization of the distribution of SAR11, from waters spanning temperatures ĝ̂'2 to 30°C. Our data show a stable co-occurrence of phylotypes within both ĝ€̃ tropicalĝ€™ (>20°C) and ĝ€̃ polarĝ€™ (<10°C) biomes, highlighting ecological niche differentiation between major SAR11 subgroups. All phylotypes display transitions in abundance that are strongly correlated with temperature and latitude. By assembling SAR11 genomes from Antarctic metagenome data, we identified specific genes, biases in gene functions and signatures of positive selection in the genomes of the polar SAR11ĝ€"genomic signatures of adaptive radiation. Our data demonstrate the importance of adaptive radiation in the organismĝ€™s ability to proliferate throughout the worldĝ€™s oceans, and describe genomic traits characteristic of different phylotypes in specific marine biomes. © 2012 EMBO and Macmillan Publishers Limited All rights reserved. Article in Journal/Newspaper Antarc* Antarctic University of Technology Sydney: OPUS - Open Publications of UTS Scholars Antarctic |
institution |
Open Polar |
collection |
University of Technology Sydney: OPUS - Open Publications of UTS Scholars |
op_collection_id |
ftunivtsydney |
language |
unknown |
topic |
Bioinformatics Alphaproteobacteria Sequence Alignment Marine Biology Temperature Climate Seawater Phylogeny Genome Bacterial Models Biological Antarctic Regions Metagenome Phylogeography |
spellingShingle |
Bioinformatics Alphaproteobacteria Sequence Alignment Marine Biology Temperature Climate Seawater Phylogeny Genome Bacterial Models Biological Antarctic Regions Metagenome Phylogeography Brown, MV Lauro, FM Demaere, MZ Muir, L Wilkins, D Thomas, T Riddle, MJ Fuhrman, JA Andrews-Pfannkoch, C Hoffman, JM McQuaid, JB Allen, A Rintoul, SR Cavicchioli, R Global biogeography of SAR11 marine bacteria |
topic_facet |
Bioinformatics Alphaproteobacteria Sequence Alignment Marine Biology Temperature Climate Seawater Phylogeny Genome Bacterial Models Biological Antarctic Regions Metagenome Phylogeography |
description |
The ubiquitous SAR11 bacterial clade is the most abundant type of organism in the worldĝ€™s oceans, but the reasons for its success are not fully elucidated. We analysed 128 surface marine metagenomes, including 37 new Antarctic metagenomes. The large size of the data set enabled internal transcribed spacer (ITS) regions to be obtained from the Southern polar region, enabling the first global characterization of the distribution of SAR11, from waters spanning temperatures ĝ̂'2 to 30°C. Our data show a stable co-occurrence of phylotypes within both ĝ€̃ tropicalĝ€™ (>20°C) and ĝ€̃ polarĝ€™ (<10°C) biomes, highlighting ecological niche differentiation between major SAR11 subgroups. All phylotypes display transitions in abundance that are strongly correlated with temperature and latitude. By assembling SAR11 genomes from Antarctic metagenome data, we identified specific genes, biases in gene functions and signatures of positive selection in the genomes of the polar SAR11ĝ€"genomic signatures of adaptive radiation. Our data demonstrate the importance of adaptive radiation in the organismĝ€™s ability to proliferate throughout the worldĝ€™s oceans, and describe genomic traits characteristic of different phylotypes in specific marine biomes. © 2012 EMBO and Macmillan Publishers Limited All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Brown, MV Lauro, FM Demaere, MZ Muir, L Wilkins, D Thomas, T Riddle, MJ Fuhrman, JA Andrews-Pfannkoch, C Hoffman, JM McQuaid, JB Allen, A Rintoul, SR Cavicchioli, R |
author_facet |
Brown, MV Lauro, FM Demaere, MZ Muir, L Wilkins, D Thomas, T Riddle, MJ Fuhrman, JA Andrews-Pfannkoch, C Hoffman, JM McQuaid, JB Allen, A Rintoul, SR Cavicchioli, R |
author_sort |
Brown, MV |
title |
Global biogeography of SAR11 marine bacteria |
title_short |
Global biogeography of SAR11 marine bacteria |
title_full |
Global biogeography of SAR11 marine bacteria |
title_fullStr |
Global biogeography of SAR11 marine bacteria |
title_full_unstemmed |
Global biogeography of SAR11 marine bacteria |
title_sort |
global biogeography of sar11 marine bacteria |
publishDate |
2012 |
url |
http://hdl.handle.net/10453/87091 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Molecular Systems Biology 10.1038/msb.2012.28 Molecular Systems Biology, 2012, 8 http://hdl.handle.net/10453/87091 |
_version_ |
1766255875817734144 |