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dc.contributor.authorBertrand, Erin Marie
dc.date.accessioned2011-10-13T13:54:58Z
dc.date.available2011-10-13T13:54:58Z
dc.date.issued2011-03
dc.date.submitted2010-10
dc.identifier.issn1091-6490
dc.identifier.urihttp://hdl.handle.net/1721.1/66233
dc.description.abstractHarmful algal blooms (HABs) cause significant economic and ecological damage worldwide. Despite considerable efforts, a comprehensive understanding of the factors that promote these blooms has been lacking, because the biochemical pathways that facilitate their dominance relative to other phytoplankton within specific environments have not been identified. Here, biogeochemical measurements showed that the harmful alga Aureococcus anophagefferens outcompeted co-occurring phytoplankton in estuaries with elevated levels of dissolved organic matter and turbidity and low levels of dissolved inorganic nitrogen. We subsequently sequenced the genome of A. anophagefferens and compared its gene complement with those of six competing phytoplankton species identified through metaproteomics. Using an ecogenomic approach, we specifically focused on gene sets that may facilitate dominance within the environmental conditions present during blooms. A. anophagefferens possesses a larger genome (56 Mbp) and has more genes involved in light harvesting, organic carbon and nitrogen use, and encoding selenium- and metal-requiring enzymes than competing phytoplankton. Genes for the synthesis of microbial deterrents likely permit the proliferation of this species, with reduced mortality losses during blooms. Collectively, these findings suggest that anthropogenic activities resulting in elevated levels of turbidity, organic matter, and metals have opened a niche within coastal ecosystems that ideally suits the unique genetic capacity of A. anophagefferens and thus, has facilitated the proliferation of this and potentially other HABs.en_US
dc.description.sponsorshipUnited States. National Oceanic and Atmospheric Administration (Sea Grant Award NA07OAR4170010)en_US
dc.description.sponsorshipUnited States. National Oceanic and Atmospheric Administration (Sea Grant Award NA10OAR4170064)en_US
dc.description.sponsorshipUnited States. National Oceanic and Atmospheric Administration (Sponsored Coastal Ocean Research Award NA09NOS4780206)en_US
dc.description.sponsorshipNational Institutes of Health (U.S.) (Grant GM061603)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Award IOS-0841918)en_US
dc.language.isoen_US
dc.publisherNational Academy of Sciences (U.S.)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1073/pnas.1016106108en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourcePNASen_US
dc.titleNiche of harmful alga Aureococcus anophagefferens revealed through ecogenomicsen_US
dc.typeArticleen_US
dc.identifier.citationGobler, C. J. et al. “Niche of harmful alga Aureococcus anophagefferens revealed through ecogenomics.” Proceedings of the National Academy of Sciences 108 (2011): 4352-4357. ©2011 by the National Academy of Sciences.en_US
dc.contributor.departmentJoint Program in Chemical Oceanographyen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciencesen_US
dc.contributor.departmentWoods Hole Oceanographic Institutionen_US
dc.contributor.approverBertrand, Erin Marie
dc.contributor.mitauthorBertrand, Erin Marie
dc.relation.journalProceedings of the National Academy of Sciences of the United States of Americaen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsGobler, C. J.; Berry, D. L.; Dyhrman, S. T.; Wilhelm, S. W.; Salamov, A.; Lobanov, A. V.; Zhang, Y.; Collier, J. L.; Wurch, L. L.; Kustka, A. B.; Dill, B. D.; Shah, M.; VerBerkmoes, N. C.; Kuo, A.; Terry, A.; Pangilinan, J.; Lindquist, E. A.; Lucas, S.; Paulsen, I. T.; Hattenrath-Lehmann, T. K.; Talmage, S. C.; Walker, E. A.; Koch, F.; Burson, A. M.; Marcoval, M. A.; Tang, Y.-Z.; LeCleir, G. R.; Coyne, K. J.; Berg, G. M.; Bertrand, E. M.; Saito, M. A.; Gladyshev, V. N.; Grigoriev, I. V.en
mit.licensePUBLISHER_POLICYen_US
mit.metadata.statusComplete


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