Biogeography and phylogeny of the NOR5/OM60 clade of Gammaproteobacteria |
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Authors: | Shi Yan,Bernhard M. Fuchs,Sabine Lenk,Jens Harder,Jö rg Wulf,Nian-Zhi Jiao,Rudolf Amann |
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Affiliation: | 1. Department of Molecular Ecology, Max Planck Institute for Marine Microbiology, Bremen D-28359, Germany;2. Department of Microbiology, Max Planck Institute for Marine Microbiology, Bremen D-28359, Germany;3. National Key Laboratory for Marine Environmental Sciences, University of Xiamen, Xiamen, Fujian 361005, China |
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Abstract: | The phylogeny, abundance, and biogeography of the NOR5/OM60 clade was investigated. This clade includes “Congregibacter litoralis” strain KT71, the first cultured representative of marine aerobic anoxygenic phototrophic Gammaproteobacteria. More than 500 16S rRNA sequences affiliated with this clade were retrieved from public databases. By comparative sequence analysis, 13 subclades could be identified, some of which are currently restricted to discrete habitat types. Almost all sequences in the largest subclade NOR5-1 and related subclade NOR5-4 originated from marine surface water samples. Overall, most of the NOR5/OM60 sequences were retrieved from marine coastal settings, whereas there were fewer from open-ocean surface waters, deep-sea sediment, freshwater, saline lakes and soil. |
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Keywords: | Microbial ecology Bacteria Fluorescence in situ hybridization Phylogeny Biogeography |
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