Global phylogenetic community structure and β-diversity patterns in surface bacterioplankton metacommunities

We aimed to identify phylogenetic community patterns in abundant planktonic bacteria (Alpha-, Beta-, and Gammaproteobacteria, Actinobacteria, Cyanobacteria, and Bacteroidetes) from a worldwide range of surface waters (lakes and seas—34 sites and ca. 4500 16S rRNA gene sequences). At each site we ass...

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Detalhes bibliográficos
Autores: Casamayor, Emilio O., Barberán, Albert
Formato: artículo
Fecha de publicación:2010
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/22981
Acesso em linha:http://hdl.handle.net/10261/22981
Access Level:acceso abierto
Palavra-chave:Bacterioplankton
Community ecology
Metacommunity
Biogeography
Global distribution
Community assembly
Phylogeny
16S rRNA
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spelling Global phylogenetic community structure and β-diversity patterns in surface bacterioplankton metacommunitiesCasamayor, Emilio O.Barberán, AlbertBacterioplanktonCommunity ecologyMetacommunityBiogeographyGlobal distributionCommunity assemblyPhylogeny16S rRNAWe aimed to identify phylogenetic community patterns in abundant planktonic bacteria (Alpha-, Beta-, and Gammaproteobacteria, Actinobacteria, Cyanobacteria, and Bacteroidetes) from a worldwide range of surface waters (lakes and seas—34 sites and ca. 4500 16S rRNA gene sequences). At each site we assessed the number of observed bacterial groups and the genetic relatedness of the most abundant groups through a community phylogenetic metaanalysis approach in order to (1) explore which potential ecological processes were consistent with the observed phylogenetic patterns in community assembly and (2) disentangle the effects of space and environment in β-diversity patterns for the different bacterial groups. Inland waters had significantly more bacterial groups and were more diverse than marine waters. Marine habitats showed a higher percentage of clustered sites than lakes, and bacterial communities were more closely related than expected by chance. Phylogenetic β-diversity analyses revealed different patterns to both salt composition (marine vs. inland salt lakes) and salt concentration for the dominant bacteria. We observed that while β-diversity patterns for Bacteroidetes were mostly shaped by salinity concentration, patterns in Alphaproteobacteria and Gammaproteobacteria were controlled by salt composition. Actinobacteria, Betaproteobacteria and Sphingobacteria were largely absent from marine habitats and from saline continental sites. In general and despite the lack of contextual metadata, environmental similarity was more relevant than spatial distribution for bacterial β-diversity patterns. However, we detected a geographic signal for some inland waters’ groups (i.e. Actinobacteria, Beta-, and Gammaproteobacteria). Overall, the analyses indicated differences among phylogenetic groups and reflected patterns upon which further exploration of community assembly theory could be based. Marine (background) and freshwater (inset) bacterioplankton look similar under the microscope but present very different dominant bacteria. The ecological drivers guiding assemblage composition are, however, intriguing and challenging for microbial ecologists today.This research was supported by Grant AERBAC 079/2007 to E.O.C. from the Spanish Ministerio de Medio Ambiente (MARM), and CONSOLIDER-INGENIO 2010 Grant GRACCIE CSD2007-00004 from the Spanish Ministerio de Ciencia e Innovación (MICINN). A.B. was supported by a FPU-MICINN predoctoral scholarship.Peer reviewedInter Research201020102010info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501397062 bytesapplication/pdfhttp://hdl.handle.net/10261/22981reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.3354/ame01389info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/229812026-05-22T06:33:51Z
dc.title.none.fl_str_mv Global phylogenetic community structure and β-diversity patterns in surface bacterioplankton metacommunities
title Global phylogenetic community structure and β-diversity patterns in surface bacterioplankton metacommunities
spellingShingle Global phylogenetic community structure and β-diversity patterns in surface bacterioplankton metacommunities
Casamayor, Emilio O.
Bacterioplankton
Community ecology
Metacommunity
Biogeography
Global distribution
Community assembly
Phylogeny
16S rRNA
title_short Global phylogenetic community structure and β-diversity patterns in surface bacterioplankton metacommunities
title_full Global phylogenetic community structure and β-diversity patterns in surface bacterioplankton metacommunities
title_fullStr Global phylogenetic community structure and β-diversity patterns in surface bacterioplankton metacommunities
title_full_unstemmed Global phylogenetic community structure and β-diversity patterns in surface bacterioplankton metacommunities
title_sort Global phylogenetic community structure and β-diversity patterns in surface bacterioplankton metacommunities
dc.creator.none.fl_str_mv Casamayor, Emilio O.
Barberán, Albert
author Casamayor, Emilio O.
author_facet Casamayor, Emilio O.
Barberán, Albert
author_role author
author2 Barberán, Albert
author2_role author
dc.subject.none.fl_str_mv Bacterioplankton
Community ecology
Metacommunity
Biogeography
Global distribution
Community assembly
Phylogeny
16S rRNA
topic Bacterioplankton
Community ecology
Metacommunity
Biogeography
Global distribution
Community assembly
Phylogeny
16S rRNA
description We aimed to identify phylogenetic community patterns in abundant planktonic bacteria (Alpha-, Beta-, and Gammaproteobacteria, Actinobacteria, Cyanobacteria, and Bacteroidetes) from a worldwide range of surface waters (lakes and seas—34 sites and ca. 4500 16S rRNA gene sequences). At each site we assessed the number of observed bacterial groups and the genetic relatedness of the most abundant groups through a community phylogenetic metaanalysis approach in order to (1) explore which potential ecological processes were consistent with the observed phylogenetic patterns in community assembly and (2) disentangle the effects of space and environment in β-diversity patterns for the different bacterial groups. Inland waters had significantly more bacterial groups and were more diverse than marine waters. Marine habitats showed a higher percentage of clustered sites than lakes, and bacterial communities were more closely related than expected by chance. Phylogenetic β-diversity analyses revealed different patterns to both salt composition (marine vs. inland salt lakes) and salt concentration for the dominant bacteria. We observed that while β-diversity patterns for Bacteroidetes were mostly shaped by salinity concentration, patterns in Alphaproteobacteria and Gammaproteobacteria were controlled by salt composition. Actinobacteria, Betaproteobacteria and Sphingobacteria were largely absent from marine habitats and from saline continental sites. In general and despite the lack of contextual metadata, environmental similarity was more relevant than spatial distribution for bacterial β-diversity patterns. However, we detected a geographic signal for some inland waters’ groups (i.e. Actinobacteria, Beta-, and Gammaproteobacteria). Overall, the analyses indicated differences among phylogenetic groups and reflected patterns upon which further exploration of community assembly theory could be based. Marine (background) and freshwater (inset) bacterioplankton look similar under the microscope but present very different dominant bacteria. The ecological drivers guiding assemblage composition are, however, intriguing and challenging for microbial ecologists today.
publishDate 2010
dc.date.none.fl_str_mv 2010
2010
2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/22981
url http://hdl.handle.net/10261/22981
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.3354/ame01389
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 397062 bytes
application/pdf
dc.publisher.none.fl_str_mv Inter Research
publisher.none.fl_str_mv Inter Research
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
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