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Optimization of random amplification of polymorphic DNA analysis for molecular subtyping of Escherichia coli O157.

Authors
Type
Published Article
Journal
Letters in applied microbiology
Publication Date
Volume
32
Issue
3
Pages
126–130
Identifiers
PMID: 11264738
Source
Medline

Abstract

Random amplification of polymorphic DNA (RAPD) analysis using the polymerase chain reaction has proved to be a useful technique in the epidemiological investigation of micro-organisms but may suffer from a lack of reproducibility in poorly optimized protocols. In this study a method of obtaining reproducible genomic fingerprints using RAPD analysis of Escherichia coli O157 is described. By systematic optimization of reaction conditions and selection of suitable primers, reproducible and discriminatory profiles could be obtained from all E. coli O157 strains tested. In addition, two other methods of obtaining reproducible profiles from E. coli O157 strains without the need to purify genomic DNA are described.

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