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Microb Ecol. 2010 Nov;60(4):721-9. doi: 10.1007/s00248-010-9692-8. Epub 2010 Jun 29.

Comparative genome analysis of Prevotella ruminicola and Prevotella bryantii: insights into their environmental niche.

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Department of Human Genomic Medicine, The J. Craig Venter Institute (JCVI), Rockville, MD 20850, USA.


The Prevotellas comprise a diverse group of bacteria that has received surprisingly limited attention at the whole genome-sequencing level. In this communication, we present the comparative analysis of the genomes of Prevotella ruminicola 23 (GenBank: CP002006) and Prevotella bryantii B(1)4 (GenBank: ADWO00000000), two gastrointestinal isolates. Both P. ruminicola and P. bryantii have acquired an extensive repertoire of glycoside hydrolases that are targeted towards non-cellulosic polysaccharides, especially GH43 bifunctional enzymes. Our analysis demonstrates the diversity of this genus. The results from these analyses highlight their role in the gastrointestinal tract, and provide a template for additional work on genetic characterization of these species.

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