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Metagenomic analysis reveals unexpected subgenomic diversity of magnetotactic bacteria within the phylum Nitrospirae.


ABSTRACT: A targeted metagenomic approach was applied to investigate magnetotactic bacteria (MTB) within the phylum Nitrospirae in Lake Miyun near Beijing, China. Five fosmids containing rRNA operons were identified. Comparative sequence analysis of a total of 172 kb provided new insights into their genome organization and revealed unexpected subgenomic diversity of uncultivated MTB in the phylum Nitrospirae. In addition, affiliation of two novel MTB with the phylum Nitrospirae was verified by fluorescence in situ hybridization. One of them was morphologically similar to "Candidatus Magnetobacterium bavaricum," but the other differed substantially in cell shape and magnetosome organization from all previously described "Ca. Magnetobacterium bavaricum"-like bacteria.

SUBMITTER: Lin W 

PROVIDER: S-EPMC3019724 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature

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Metagenomic analysis reveals unexpected subgenomic diversity of magnetotactic bacteria within the phylum Nitrospirae.

Lin Wei W   Jogler Christian C   Schüler Dirk D   Pan Yongxin Y  

Applied and environmental microbiology 20101105 1


A targeted metagenomic approach was applied to investigate magnetotactic bacteria (MTB) within the phylum Nitrospirae in Lake Miyun near Beijing, China. Five fosmids containing rRNA operons were identified. Comparative sequence analysis of a total of 172 kb provided new insights into their genome organization and revealed unexpected subgenomic diversity of uncultivated MTB in the phylum Nitrospirae. In addition, affiliation of two novel MTB with the phylum Nitrospirae was verified by fluorescenc  ...[more]

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