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Critical Evaluation of Two Primers Commonly Used for Amplification of Bacterial 16S rRNA Genes

Open access
Frank, Jeremy A., Reich, Claudia I., Sharma, Shobha, Weisbaum, Jon S., Wilson, Brenda A., Olsen, Gary J.·2008·Applied and Environmental Microbiology

Abstract

rRNA-based studies, which have become the most common method for assessing microbial communities, rely upon faithful amplification of the corresponding genes from the original DNA sample. We report here an analysis and reevaluation of commonly used primers for amplifying the DNA between positions 27 and 1492 of bacterial 16S rRNA genes (numbered according to the Escherichia coli rRNA). We propose a formulation for a forward primer (27f) that includes three sequences not usually present. We compare our proposed formulation to two common alternatives by using linear amplification—providing an assessment that is independent of a reverse primer—and in combination with the 1492 reverse primer (1492r) under the PCR conditions appropriate for making community rRNA gene clone libraries. For analyses of DNA from human vaginal samples, our formulation was better at maintaining the original rRNA gene ratio of Lactobacillus spp. to Gardnerella spp., particularly under stringent amplification conditions. Because our 27f formulation remains relatively simple, having seven distinct primer sequences, there is minimal loss of overall amplification efficiency and specificity.

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Metadata

Authors
Frank, J. A., Reich, C. I., Sharma, S., Weisbaum, J. S., Wilson, B. A., & Olsen, G. J.
Venue
Applied and Environmental Microbiology
Published
2008-04-15
Volume
74
Issue
8
Pages
2461-2470
ISSN
  • 0099-2240 (ISSN-L)
  • 1098-5336
OpenAlex
W2159480438
Cited by
1,912
References
4
FWCI
21.47
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Critical Evaluation of Two Primers Commonly Used for Amplification of Bacterial 16S rRNA Genes. https://app.cochat.ai/papers/10.1128/aem.02272-07
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Frank, J. A., Reich, C. I., Sharma, S., Weisbaum, J. S., Wilson, B. A., & Olsen, G. J. (2008). Critical Evaluation of Two Primers Commonly Used for Amplification of Bacterial 16S rRNA Genes. Applied and Environmental Microbiology. https://doi.org/10.1128/aem.02272-07

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