Spatially extensive microbial biogeography of the Indian Ocean provides insights into the unique community structure of a pristine coral atoll

Thomas C. Jeffries, Martin Ostrowski, Rohan B. Williams, Chao Xie, Rachelle M. Jensen, Joseph J. Grzymski, Svend Jacob Senstius, Michael Givskov, Ron Hoeke, Gayle K. Philip, Russell Y. Neches, Daniela I. Drautz-Moses, Caroline Chenard, Ian T. Paulsen, Federico M. Lauro

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Microorganisms act both as drivers and indicators of perturbations in the marine environment. In an effort to establish baselines to predict the response of marine habitats to environmental change, here we report a broad survey of microbial diversity across the Indian Ocean, including the first microbial samples collected in the pristine lagoon of Salomon Islands, Chagos Archipelago. This was the first largescale ecogenomic survey aboard a private yacht employing a 'citizen oceanography' approach and tools and protocols easily adapted to ocean going sailboats. Our data highlighted biogeographic patterns in microbial community composition across the Indian Ocean. Samples from within the Salomon Islands lagoon contained a community which was different even from adjacent samples despite constant water exchange, driven by the dominance of the photosynthetic cyanobacterium Synechococcus. In the lagoon, Synechococcus was also responsible for driving shifts in the metatranscriptional profiles. Enrichment of transcripts related to photosynthesis and nutrient cycling indicated bottom-up controls of community structure. However a five-fold increase in viral transcripts within the lagoon during the day, suggested a concomitant top-down control by bacteriophages. Indeed, genome recruitment against Synechococcus reference genomes suggested a role of viruses in providing the ecological filter for determining the β-diversity patterns in this system.

LanguageEnglish
Article number15383
Pages1-13
Number of pages13
JournalScientific Reports
Volume5
DOIs
Publication statusPublished - 20 Oct 2015

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Synechococcus
Indian Ocean
Anthozoa
Islands
Oceanography
Genome
Photosynthesis
Cyanobacteria
Oceans and Seas
Bacteriophages
Ecosystem
Viruses
Food
Water
Surveys and Questionnaires

Cite this

Jeffries, Thomas C. ; Ostrowski, Martin ; Williams, Rohan B. ; Xie, Chao ; Jensen, Rachelle M. ; Grzymski, Joseph J. ; Senstius, Svend Jacob ; Givskov, Michael ; Hoeke, Ron ; Philip, Gayle K. ; Neches, Russell Y. ; Drautz-Moses, Daniela I. ; Chenard, Caroline ; Paulsen, Ian T. ; Lauro, Federico M. / Spatially extensive microbial biogeography of the Indian Ocean provides insights into the unique community structure of a pristine coral atoll. In: Scientific Reports. 2015 ; Vol. 5. pp. 1-13.
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title = "Spatially extensive microbial biogeography of the Indian Ocean provides insights into the unique community structure of a pristine coral atoll",
abstract = "Microorganisms act both as drivers and indicators of perturbations in the marine environment. In an effort to establish baselines to predict the response of marine habitats to environmental change, here we report a broad survey of microbial diversity across the Indian Ocean, including the first microbial samples collected in the pristine lagoon of Salomon Islands, Chagos Archipelago. This was the first largescale ecogenomic survey aboard a private yacht employing a 'citizen oceanography' approach and tools and protocols easily adapted to ocean going sailboats. Our data highlighted biogeographic patterns in microbial community composition across the Indian Ocean. Samples from within the Salomon Islands lagoon contained a community which was different even from adjacent samples despite constant water exchange, driven by the dominance of the photosynthetic cyanobacterium Synechococcus. In the lagoon, Synechococcus was also responsible for driving shifts in the metatranscriptional profiles. Enrichment of transcripts related to photosynthesis and nutrient cycling indicated bottom-up controls of community structure. However a five-fold increase in viral transcripts within the lagoon during the day, suggested a concomitant top-down control by bacteriophages. Indeed, genome recruitment against Synechococcus reference genomes suggested a role of viruses in providing the ecological filter for determining the β-diversity patterns in this system.",
author = "Jeffries, {Thomas C.} and Martin Ostrowski and Williams, {Rohan B.} and Chao Xie and Jensen, {Rachelle M.} and Grzymski, {Joseph J.} and Senstius, {Svend Jacob} and Michael Givskov and Ron Hoeke and Philip, {Gayle K.} and Neches, {Russell Y.} and Drautz-Moses, {Daniela I.} and Caroline Chenard and Paulsen, {Ian T.} and Lauro, {Federico M.}",
year = "2015",
month = "10",
day = "20",
doi = "10.1038/srep15383",
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journal = "Scientific Reports",
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Jeffries, TC, Ostrowski, M, Williams, RB, Xie, C, Jensen, RM, Grzymski, JJ, Senstius, SJ, Givskov, M, Hoeke, R, Philip, GK, Neches, RY, Drautz-Moses, DI, Chenard, C, Paulsen, IT & Lauro, FM 2015, 'Spatially extensive microbial biogeography of the Indian Ocean provides insights into the unique community structure of a pristine coral atoll' Scientific Reports, vol. 5, 15383, pp. 1-13. https://doi.org/10.1038/srep15383

Spatially extensive microbial biogeography of the Indian Ocean provides insights into the unique community structure of a pristine coral atoll. / Jeffries, Thomas C.; Ostrowski, Martin; Williams, Rohan B.; Xie, Chao; Jensen, Rachelle M.; Grzymski, Joseph J.; Senstius, Svend Jacob; Givskov, Michael; Hoeke, Ron; Philip, Gayle K.; Neches, Russell Y.; Drautz-Moses, Daniela I.; Chenard, Caroline; Paulsen, Ian T.; Lauro, Federico M.

In: Scientific Reports, Vol. 5, 15383, 20.10.2015, p. 1-13.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - Spatially extensive microbial biogeography of the Indian Ocean provides insights into the unique community structure of a pristine coral atoll

AU - Jeffries,Thomas C.

AU - Ostrowski,Martin

AU - Williams,Rohan B.

AU - Xie,Chao

AU - Jensen,Rachelle M.

AU - Grzymski,Joseph J.

AU - Senstius,Svend Jacob

AU - Givskov,Michael

AU - Hoeke,Ron

AU - Philip,Gayle K.

AU - Neches,Russell Y.

AU - Drautz-Moses,Daniela I.

AU - Chenard,Caroline

AU - Paulsen,Ian T.

AU - Lauro,Federico M.

PY - 2015/10/20

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N2 - Microorganisms act both as drivers and indicators of perturbations in the marine environment. In an effort to establish baselines to predict the response of marine habitats to environmental change, here we report a broad survey of microbial diversity across the Indian Ocean, including the first microbial samples collected in the pristine lagoon of Salomon Islands, Chagos Archipelago. This was the first largescale ecogenomic survey aboard a private yacht employing a 'citizen oceanography' approach and tools and protocols easily adapted to ocean going sailboats. Our data highlighted biogeographic patterns in microbial community composition across the Indian Ocean. Samples from within the Salomon Islands lagoon contained a community which was different even from adjacent samples despite constant water exchange, driven by the dominance of the photosynthetic cyanobacterium Synechococcus. In the lagoon, Synechococcus was also responsible for driving shifts in the metatranscriptional profiles. Enrichment of transcripts related to photosynthesis and nutrient cycling indicated bottom-up controls of community structure. However a five-fold increase in viral transcripts within the lagoon during the day, suggested a concomitant top-down control by bacteriophages. Indeed, genome recruitment against Synechococcus reference genomes suggested a role of viruses in providing the ecological filter for determining the β-diversity patterns in this system.

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