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Article: Ancient origins determine global biogeography of hot and cold desert cyanobacteria
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TitleAncient origins determine global biogeography of hot and cold desert cyanobacteria
 
AuthorsBahl, J1
Lau, MCY4
Smith, GJD1
Vijaykrishna, D1
Cary, SC5
Lacap, DC4
Lee, CK5
Papke, RT2
Warren-Rhodes, KA3
Wong, FKY4
McKay, CP3
Pointing, SB4
 
Issue Date2011
 
PublisherNature Publishing Group. The Journal's web site is located at http://www.nature.com/ncomms/index.html
 
CitationNature Communications, 2011, v. 2 n. 1, article no. 163 [How to Cite?]
DOI: http://dx.doi.org/10.1038/ncomms1167
 
AbstractFactors governing large-scale spatio-temporal distribution of microorganisms remain unresolved, yet are pivotal to understanding ecosystem value and function. Molecular genetic analyses have focused on the influence of niche and neutral processes in determining spatial patterns without considering the temporal scale. Here, we use temporal phylogenetic analysis calibrated using microfossil data for a globally sampled desert cyanobacterium, Chroococcidiopsis, to investigate spatio-temporal patterns in microbial biogeography and evolution. Multilocus phylogenetic associations were dependent on contemporary climate with no evidence for distance-related patterns. Massively parallel pyrosequencing of environmental samples confirmed that Chroococcidiopsis variants were specific to either hot or cold deserts. Temporally scaled phylogenetic analyses showed no evidence of recent inter-regional gene flow, indicating populations have not shared common ancestry since before the formation of modern continents. These results indicate that global distribution of desert cyanobacteria has not resulted from widespread contemporary dispersal but is an ancient evolutionary legacy. This highlights the importance of considering temporal scales in microbial biogeography. © 2011 Macmillan Publishers Limited. All rights reserved.
 
ISSN2041-1723
2012 Impact Factor: 10.015
 
DOIhttp://dx.doi.org/10.1038/ncomms1167
 
PubMed Central IDPMC3105302
 
ISI Accession Number IDWOS:000288225700013
Funding AgencyGrant Number
NASA
Hong Kong Research Grants CouncilHKU7733/08 HKU7763/10
Agency for Science, Technology and Research
Ministry of Health, Singapore
Funding Information:

We thank the following for critical discussion on earlier versions of this work: Yuki Chan, Don Cowan, Alfonso Davilla, Alex Heri, Wayne Pollard, Mark Stevens. This research was supported by the NASA Astrobiology Science and Technology for Exploring Planets (ASTEP) Programme and the Hong Kong Research Grants Council (Grant numbers HKU7733/08 HKU7763/10). J.B., G.J.D.S. and D. V. are supported by the Duke-NUS Signature Research Program funded by the Agency for Science, Technology and Research, and the Ministry of Health, Singapore.

 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorBahl, J
 
dc.contributor.authorLau, MCY
 
dc.contributor.authorSmith, GJD
 
dc.contributor.authorVijaykrishna, D
 
dc.contributor.authorCary, SC
 
dc.contributor.authorLacap, DC
 
dc.contributor.authorLee, CK
 
dc.contributor.authorPapke, RT
 
dc.contributor.authorWarren-Rhodes, KA
 
dc.contributor.authorWong, FKY
 
dc.contributor.authorMcKay, CP
 
dc.contributor.authorPointing, SB
 
dc.date.accessioned2012-08-08T08:51:42Z
 
dc.date.available2012-08-08T08:51:42Z
 
dc.date.issued2011
 
dc.description.abstractFactors governing large-scale spatio-temporal distribution of microorganisms remain unresolved, yet are pivotal to understanding ecosystem value and function. Molecular genetic analyses have focused on the influence of niche and neutral processes in determining spatial patterns without considering the temporal scale. Here, we use temporal phylogenetic analysis calibrated using microfossil data for a globally sampled desert cyanobacterium, Chroococcidiopsis, to investigate spatio-temporal patterns in microbial biogeography and evolution. Multilocus phylogenetic associations were dependent on contemporary climate with no evidence for distance-related patterns. Massively parallel pyrosequencing of environmental samples confirmed that Chroococcidiopsis variants were specific to either hot or cold deserts. Temporally scaled phylogenetic analyses showed no evidence of recent inter-regional gene flow, indicating populations have not shared common ancestry since before the formation of modern continents. These results indicate that global distribution of desert cyanobacteria has not resulted from widespread contemporary dispersal but is an ancient evolutionary legacy. This highlights the importance of considering temporal scales in microbial biogeography. © 2011 Macmillan Publishers Limited. All rights reserved.
 
dc.description.natureLink_to_OA_fulltext
 
dc.identifier.citationNature Communications, 2011, v. 2 n. 1, article no. 163 [How to Cite?]
DOI: http://dx.doi.org/10.1038/ncomms1167
 
dc.identifier.citeulike8888224
 
dc.identifier.doihttp://dx.doi.org/10.1038/ncomms1167
 
dc.identifier.hkuros218934
 
dc.identifier.isiWOS:000288225700013
Funding AgencyGrant Number
NASA
Hong Kong Research Grants CouncilHKU7733/08 HKU7763/10
Agency for Science, Technology and Research
Ministry of Health, Singapore
Funding Information:

We thank the following for critical discussion on earlier versions of this work: Yuki Chan, Don Cowan, Alfonso Davilla, Alex Heri, Wayne Pollard, Mark Stevens. This research was supported by the NASA Astrobiology Science and Technology for Exploring Planets (ASTEP) Programme and the Hong Kong Research Grants Council (Grant numbers HKU7733/08 HKU7763/10). J.B., G.J.D.S. and D. V. are supported by the Duke-NUS Signature Research Program funded by the Agency for Science, Technology and Research, and the Ministry of Health, Singapore.

 
dc.identifier.issn2041-1723
2012 Impact Factor: 10.015
 
dc.identifier.issue1
 
dc.identifier.pmcidPMC3105302
 
dc.identifier.pmid21266963
 
dc.identifier.scopuseid_2-s2.0-79251564892
 
dc.identifier.urihttp://hdl.handle.net/10722/157615
 
dc.identifier.volume2
 
dc.languageeng
 
dc.publisherNature Publishing Group. The Journal's web site is located at http://www.nature.com/ncomms/index.html
 
dc.publisher.placeUnited Kingdom
 
dc.relation.ispartofNature Communications
 
dc.relation.referencesReferences in Scopus
 
dc.titleAncient origins determine global biogeography of hot and cold desert cyanobacteria
 
dc.typeArticle
 
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Author Affiliations
  1. Duke-NUS Graduate Medical School Singapore
  2. University of Connecticut
  3. NASA Ames Research Center
  4. The University of Hong Kong
  5. University of Waikato