Characterization of enterotoxigenic Escherichia coli by random amplification of polymorphic DNA
Data
1996-03-01
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Artigo
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Resumo
Two enterotoxigenic Escherichia coli (ETEC) strains (H10407 and 4011-1) were characterized by random amplification of polymorphic DNA (RAPD) profiles using 10-mer oligonucleotides with diverse GC content, All tested primers yielded arrays of amplified DNA products ranging in size from 200 to 3000 bp. the effects of annealing temperature, template concentration and GC content of the primers were evaluated and an optimal reaction procedure was established. Application of the RAPD analysis to ten ETEC strains belonging to five different serotypes showed that strains of the same serotype shared identical or almost identical band profiles, suggesting a similar genetic composition. the use of RAPD profiles as a tool in epidemiological analysis of ETEC is discussed.
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Citação
Research in Microbiology. Paris Cedex 15: Editions Scientifiques Elsevier, v. 147, n. 3, p. 175-182, 1996.