Molecular typing of Yersinia pseudotuberculosis strains isolated from livestock in Brazil

Author(s)

Souza, R. A. ^{[1, 2]} ; Imori, P. F. M. ^{[1, 2]} ; Passaglia, J. ^{[1, 2]} ; Pitondo-Silva, A. ^[1] ; Falcao, J. P. ^{[1, 2]}

Affiliation

^[1] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, Dept Anal Clin Toxicol & Bromatol, BR-14049 Ribeirao Preto, SP - Brazil

^[2] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, Lab Nacl Refencia Yersinia Spp Outras Que Y Pesti, BR-14049 Ribeirao Preto, SP - Brazil

• Document type: Journal article
• Source: Genetics and Molecular Research; v. 12, n. 4, p. 4869-4878, 2013.
• Web of Science Citations: 0

Abstract

Yersinia pseudotuberculosis can infect a broad range of animals. In Brazil, this bacterium has been isolated from healthy and sick animals from sporadic cases and outbreaks of hemorrhagic gastroenteritis among livestock. However, the molecular diversity of these isolates is little understood. In this study, we used multilocus sequence typing, enterobacterial repetitive intergenic consensus PCR and pulsed-field gel electrophoresis to genotype 40 Y. pseudotuberculosis strains belonging to bio-serogroups 1/O:1a and 2/O:3 isolated between 1982 and 1990 in the southern region of Brazil. All three methodologies clustered the strains into two main clusters according to their bio-serogroups. Good correlations were observed between the clusters and the pathogenic potential of the strains. No correlation among the strains was observed according to geographical origin, host, place, or year of isolation. The grouping of the Y. pseudotuberculosis isolated in Brazil determined by these assays leads us to suggest that Brazilian livestock harbor two subpopulations of Y. pseudotuberculosis. (AU)

• FAPESP's process: 09/08455-1 - Genotyping of Yersinia ssp. strains by high-resolution melting analysis
• Grantee: Roberto Antonio de Souza
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 07/07784-6 - Molecular typing of Yersinia pseudotuberculosis strains by Multi Locus Sequence Typing
• Grantee: Priscilla Fernanda Martins Imori
• Support Opportunities: Scholarships in Brazil - Scientific Initiation