Population genetics of human, animal, and environmental Yersinia strains

Multilocus enzyme electrophoresis was used to analyze 244 strains of nine Yersinia species isolated from the environment, animals, and humans at 18 genes encoding metabolic enzymes. All 18 enzymes were polymorphic. Among the 137 electrophoretic types (ETs) distinguished, the mean allelic diversity p...

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Bibliographic Details
Published in:Applied and Environmental Microbiology 1993-02, Vol.59 (2), p.442-450
Main Authors: DOLINA, M, PEDUZZI, R
Format: Article
Language:English
Subjects:
Animals
Bacteria
Bacteriology
Bacteriophage Typing
belgica
belgique
belgium
Biological and medical sciences
bovin
carne de cerdo
cattle
cerdo
chemotaxonomy
chimiotaxonomie
Classification
electroforesis
electrophorese
Electrophoresis
Environmental Microbiology
enzyme polymorphism
europa occidental
europe occidentale
Fundamental and applied biological sciences. Psychology
ganado bovino
gene
genes
Genetic Variation
genetica
Genetics
Genetics, Population
genetique
Humans
loci
locus
Lod Score
Microbiology
polimorfismo enzimatico
polymorphisme enzymatique
porcin
pork
quimiotaxonomia
suisse
suiza
swine
switzerland
viande porcine
western europe
Yersinia
Yersinia - classification
Yersinia - enzymology
Yersinia - genetics
yersinia enterocolitica
yersinia pseudotuberculosis
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Description
Summary:Multilocus enzyme electrophoresis was used to analyze 244 strains of nine Yersinia species isolated from the environment, animals, and humans at 18 genes encoding metabolic enzymes. All 18 enzymes were polymorphic. Among the 137 electrophoretic types (ETs) distinguished, the mean allelic diversity per locus was 0.531. Yersinia frederiksenii ETs were divided into three major clusters that were separated by a large genetic distance, and one ET was more closely related to Yersinia enterocolitica. Thus, strains classically identified as Y. frederiksenii may represent more than one species. Furthermore, two strains identified as Yersinia kristensenii proved to be more closely related to Yersinia mollaretii. Environmental strains formed independent groups. A very interesting ET consisting of as many as 61 isolates of Yersinia enterocolitica was detected, and the epidemiologic relevance of this ET is discussed. Human strains of Y. enterocolitica biotype 4 and Yersinia pseudotuberculosis were recognized as being closely related to animal strains of the same species. Therefore, animal strains of these two species may be considered potential human pathogens.
ISSN:0099-2240
1098-5336
DOI:10.1128/AEM.59.2.442-450.1993