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dc.creatorStern, Rowena F.en
dc.creatorHorak, Alesen
dc.creatorAndrew, Rose L.en
dc.creatorCoffroth, Mary-Aliceen
dc.creatorAndersen, Robert A.en
dc.creatorKüpper, Frithjof C.en
dc.creatorJameson, Ianen
dc.creatorHoppenrath, Monaen
dc.creatorVéron, Benoîten
dc.creatorKasai, Fumaien
dc.creatorBrand, Jerryen
dc.creatorJames, Erick R.en
dc.creatorKeeling, Patrick J.en
dc.date.accessioned2013-06-28T14:50:45Zen
dc.date.available2013-06-28T14:50:45Zen
dc.date.issued2010-11-15en
dc.identifier.citationStern RF, Horak A, Andrew RL, Coffroth M-A, Andersen RA, et al. (2010) Environmental Barcoding Reveals Massive Dinoflagellate Diversity in Marine Environments. PLoS ONE 5(11): e13991. doi:10.1371/journal.pone.0013991en
dc.identifier.urihttp://hdl.handle.net/2152/20498en
dc.descriptionRowena F. Stern is with University of British Columbia, Ales Horak is with University of British Columbia, Rose L. Andrew is with University of British Columbia, Mary-Alice Coffroth is with State University of New York at Buffalo, Robert A. Andersen is with the Bigelow Laboratory for Ocean Sciences, Frithjof C. Küpper is with the Scottish Marine Institute, Ian Jameson is with CSIRO Marine and Atmospheric Research, Mona Hoppenrath is with the German Center for Marine Biodiversity Research, Benoît Véron is with University of Caen Lower Normandy and the National Institute for Environmental Studies, Fumai Kasai is with the National Institute for Environmental Studies, Jerry Brand is with UT Austin, Erick R. James is with University of British Columbia, Patrick J. Keeling is with University of British Columbia.en
dc.description.abstractBackground -- Dinoflagellates are an ecologically important group of protists with important functions as primary producers, coral symbionts and in toxic red tides. Although widely studied, the natural diversity of dinoflagellates is not well known. DNA barcoding has been utilized successfully for many protist groups. We used this approach to systematically sample known “species”, as a reference to measure the natural diversity in three marine environments. Methodology/Principal Findings -- In this study, we assembled a large cytochrome c oxidase 1 (COI) barcode database from 8 public algal culture collections plus 3 private collections worldwide resulting in 336 individual barcodes linked to specific cultures. We demonstrate that COI can identify to the species level in 15 dinoflagellate genera, generally in agreement with existing species names. Exceptions were found in species belonging to genera that were generally already known to be taxonomically challenging, such as Alexandrium or Symbiodinium. Using this barcode database as a baseline for cultured dinoflagellate diversity, we investigated the natural diversity in three diverse marine environments (Northeast Pacific, Northwest Atlantic, and Caribbean), including an evaluation of single-cell barcoding to identify uncultivated groups. From all three environments, the great majority of barcodes were not represented by any known cultured dinoflagellate, and we also observed an explosion in the diversity of genera that previously contained a modest number of known species, belonging to Kareniaceae. In total, 91.5% of non-identical environmental barcodes represent distinct species, but only 51 out of 603 unique environmental barcodes could be linked to cultured species using a conservative cut-off based on distances between cultured species. Conclusions/Significance -- COI barcoding was successful in identifying species from 70% of cultured genera. When applied to environmental samples, it revealed a massive amount of natural diversity in dinoflagellates. This highlights the extent to which we underestimate microbial diversity in the environment.en
dc.description.sponsorshipThis project was funded by Genome Canada and the Canadian Barcode of Life Network. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.en
dc.language.isoengen
dc.publisherPublic Library of Scienceen
dc.rightsAttribution 3.0 United Statesen
dc.rightsCC-BYen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/us/en
dc.subjectBiodiversityen
dc.subjectDinoflagellatesen
dc.subjectDNA barcodingen
dc.subjectInletsen
dc.subjectMarine environmentsen
dc.subjectProtistsen
dc.subjectSequence analysisen
dc.subjectSequence databasesen
dc.titleEnvironmental Barcoding Reveals Massive Dinoflagellate Diversity in Marine Environmentsen
dc.typeArticleen
dc.description.departmentBiological Sciences, School ofen
dc.identifier.doi10.1371/journal.pone.0013991en


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Attribution 3.0 United States
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