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          Institute: MPI für Evolutionsbiologie     Collection: Ecophysiology     Display Documents

ID: 378662.0, MPI für Evolutionsbiologie / Ecophysiology
Evaluation of PCR primer selectivity and phylogenetic specificity by using amplification of 16S rRNA genes from betaproteobacterial ammonia-oxidizing bacteria in environmental samples
Authors:Junier, Pilar; Kim, Ok-Sun; Hadas, Ora; Imhoff, Johannes F.; Witzel, Karl-Paul
Date of Publication (YYYY-MM-DD):2008-08
Title of Journal:Applied and Environmental Microbiology
Journal Abbrev.:Appl. Environ. Microbiol.
Issue / Number:16
Start Page:5231
End Page:5236
Review Status:not specified
Audience:Not Specified
Abstract / Description:The effect of primer specificity for studying the diversity of ammonia-oxidizing betaproteobacteria (beta AOB) was evaluated. beta AOB represent a group of phylogenetically related organisms for which the 16S rRNA gene approach is especially suitable. We used experimental comparisons of primer performance with water samples, together with an in silico analysis of published sequences and a literature review of clone libraries made with four specific PCR primers for the beta AOB 16S rRNA gene. With four aquatic samples, the primers NitA/NitB produced the highest frequency of ammonia-oxidizing-bacterium-like sequences compared to clone libraries with products amplified with the primer combinations beta AMOf/beta AMOr, beta AMOf/Nso1255g, and NitA/Nso1225g. Both the experimental examination of ammonia-oxidizing-bacterium-specific 16S rRNA gene primers and the literature search showed that neither specificity nor sensitivity of primer combinations can be evaluated reliably only by sequence comparison. Apparently, the combination of sequence comparison and experimental data is the best approach to detect possible biases of PCR primers. Although this study focused on beta AOB, the results presented here more generally exemplify the importance of primer selection and potential primer bias when analyzing microbial communities in environmental samples.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Evolutionsbiologie/Abt. Evolutionsökologie
External Affiliations:Ecole Polytech Fed Lausanne, ENAC ISTE EML, CH-1015 Lausanne, Switzerland; Seoul Natl Univ, Sch Biol Sci, Seoul 151742, South Korea; Kinneret Limnol Lab, Israel Oceanog & Limnol Res, IL-14950 Migdal, Israel; Univ Kiel, Leibniz Inst Marine Sci, D-24105 Kiel, Germany
Identifiers:ISSN:0099-2240 [ID-No:1]
DOI:10.1128/AEM.00288-08 [ID-No:2]
LOCALID:2634/S38900 [Listen-Nummer/S-Nummer]
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