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GENOMIC DIVERSITY OF CLINICAL AND ENVIRONMENTAL VIBRIO CHOLERAE STRAINS ISOLATED IN BRAZIL BETWEEN 1991 AND 2001 AS REVEALED BY FLUORESCENT AMPLIFIED FRAGMENT LENGTH POLYMORPHISM ANALYSIS
Diversidade genômica
Cepas
Análise de polimorfismo
Fragmento amplificado fluorescente
Vibrio cholerae strains
Vibrio cholerae Strain
Polymorphism Analysis
Amplified Fragment Length
Autor
Afiliación
Ghent University. Laboratory for Microbiology. Ghent, Belgium / Ghent University. BCCM/LMG Bacteria Collection, Ghent, Belgium.
Ghent University. Laboratory for Microbiology. Ghent, Belgium.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Genética. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Bacteriologia. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Bacteriologia. Rio de Janeiro, RJ, Brasil.
Ghent University. Laboratory for Microbiology. Ghent, Belgium / Ghent University. BCCM/LMG Bacteria Collection, Ghent, Belgium.
Ghent University. Laboratory for Microbiology. Ghent, Belgium.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Genética. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Bacteriologia. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Bacteriologia. Rio de Janeiro, RJ, Brasil.
Ghent University. Laboratory for Microbiology. Ghent, Belgium / Ghent University. BCCM/LMG Bacteria Collection, Ghent, Belgium.
Resumen en ingles
Vibrio cholerae is a ubiquitous and abundant organism in aquatic environments, particularly in coastal areas, estuaries, and rivers. This organism was the cause of a considerable number of deaths in Brazil during the last decade. In this study we applied the genomic fingerprinting technique fluorescent amplified fragment length polymorphism (FAFLP) to analyze 106 V. cholerae O1 and non-O1 and non-O139 strains isolated from clinical specimens and the environment between 1991 and 2001. Numerical analysis of the FAFLP patterns disclosed seven main groups of genomes, all of them originated from a variety of different places in different years, suggesting that V. cholerae is a very diverse species. O1 and non-O1 and non-O139 strains were distinguishable by FAFLP, although clinical and environmental strains clustered together in a few cases. The persistence of some strains of highly related genomes during several years and in completely different geographical regions suggests that these strains are highly successful in adapting to changing environmental conditions.
Palabras clave en portugues
Vibrio choleraeDiversidade genômica
Cepas
Análise de polimorfismo
Fragmento amplificado fluorescente
Palabras clave en ingles
Genomic DiversityVibrio cholerae strains
Vibrio cholerae Strain
Polymorphism Analysis
Amplified Fragment Length
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