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

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

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Publication Type:: Journal Article
Citation:: Molecular Systems Biology, 2012, 8
Issue Date:: 2012-01-01

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Field	Value	Language
dc.contributor.author	Brown, MV	en_US
dc.contributor.author	Lauro, FM	en_US
dc.contributor.author	Demaere, MZ https://orcid.org/0000-0002-7601-5108	en_US
dc.contributor.author	Muir, L	en_US
dc.contributor.author	Wilkins, D	en_US
dc.contributor.author	Thomas, T	en_US
dc.contributor.author	Riddle, MJ	en_US
dc.contributor.author	Fuhrman, JA	en_US
dc.contributor.author	Andrews-Pfannkoch, C	en_US
dc.contributor.author	Hoffman, JM	en_US
dc.contributor.author	McQuaid, JB	en_US
dc.contributor.author	Allen, A	en_US
dc.contributor.author	Rintoul, SR	en_US
dc.contributor.author	Cavicchioli, R	en_US
dc.date.available	2012-06-18	en_US
dc.date.issued	2012-01-01	en_US
dc.identifier.citation	Molecular Systems Biology, 2012, 8	en_US
dc.identifier.uri	http://hdl.handle.net/10453/87091
dc.description.abstract	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 30Â°C. Our data show a stable co-occurrence of phylotypes within both ĝ€̃ tropicalĝ€™ (>20Â°C) and ĝ€̃ polarĝ€™ (<10Â°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.	en_US
dc.relation.ispartof	Molecular Systems Biology	en_US
dc.relation.isbasedon	10.1038/msb.2012.28	en_US
dc.subject.classification	Bioinformatics	en_US
dc.subject.mesh	Alphaproteobacteria	en_US
dc.subject.mesh	Sequence Alignment	en_US
dc.subject.mesh	Marine Biology	en_US
dc.subject.mesh	Temperature	en_US
dc.subject.mesh	Climate	en_US
dc.subject.mesh	Seawater	en_US
dc.subject.mesh	Phylogeny	en_US
dc.subject.mesh	Genome, Bacterial	en_US
dc.subject.mesh	Models, Biological	en_US
dc.subject.mesh	Antarctic Regions	en_US
dc.subject.mesh	Metagenome	en_US
dc.subject.mesh	Phylogeography	en_US
dc.title	Global biogeography of SAR11 marine bacteria	en_US
dc.type	Journal Article
utslib.citation.volume	8	en_US
utslib.for	0605 Microbiology	en_US
utslib.for	0601 Biochemistry and Cell Biology	en_US
utslib.for	0699 Other Biological Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Strength - ithree - Institute of Infection, Immunity and Innovation
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	8	en_US

Abstract:

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 30Â°C. Our data show a stable co-occurrence of phylotypes within both ĝ€̃ tropicalĝ€™ (>20Â°C) and ĝ€̃ polarĝ€™ (<10Â°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.

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http://hdl.handle.net/10453/87091