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A comparison of DNA- and RNA-based clone libraries from the same marine bacterioplankton community



A comparison of DNA- and RNA-based clone libraries from the same marine bacterioplankton community



Fems Microbiology Ecology 51(3): 341-352



Clones from the same marine bacterioplankton community were sequenced, 100 clones based on DNA (16S rRNA genes) and 100 clones based on RNA (16S rRNA). This bacterioplankton community was dominated by alpha-Proteobacteria in terms of repetitive DNA clones (52 %), but gamma-Proteobacteria dominated in terms of repetitive RNA clones (44%). The combined analysis led to a characterization of phylotypes otherwise uncharacterized if only the DNA or RNA libraries would have been analyzed alone. Of the DNA clones, 25.5% were found only in this library and no close relatives were detected in the RNA library. For clones from the RNA library, 21.5% of RNA clones did not indicate close relatives in the DNA library. Based on the comparisons between DNA and RNA libraries, our data indicate that the characterization of the bacterial community based on RNA has the potential to characterize distinct phylotypes from the marine environment, which remain undetected on the DNA level. Copyright 2004 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved.

Accession: 011680025

Download citation: RISBibTeXText

PMID: 16329882

DOI: 10.1016/j.femsec.2004.09.012

Download PDF Full Text: A comparison of DNA- and RNA-based clone libraries from the same marine bacterioplankton community



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