Abstract
The purpose of the study was to analyze a part of the nucleotide sequences of ystB gene
Y. enterocolitica strains isolated from wild animals. The material for the study consists of 30
Y. enterocolitica biotype 1A strains obtained from different wild animal species and belonging to
different genotypes. Phylogenetic analysis of ystB nucleotide sequences belonging to four regular
genotypes G1, G2, G3, G4 and to five groups of variations V1, V2, V3, V4, V5 revealed significant
differences of Y. enterocolitica strains isolated from wild animals. The most phylogenetically
distant were strains belonging to V5.
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