Genetic Diversity among Escherichia coli Isolates Carrying f18 Genes from Pigs with Porcine Postweaning Diarrhea and Edema Disease-Reference-Cited by-同舟云学术

Genetic Diversity among Escherichia coli Isolates Carrying f18 Genes from Pigs with Porcine Postweaning Diarrhea and Edema Disease

Published:1999-05 Issue:5 Volume:37 Page:1642-1645
ISSN:0095-1137
Container-title:Journal of Clinical Microbiology
language:en
Short-container-title:J Clin Microbiol

Author:

Nagy Béla¹,Wilson Richard A.²,Whittam Thomas S.³

Affiliation:

1. Veterinary Medical Research Institute of the Hungarian Academy of Sciences, Budapest, Hungary,1 and

2. E. coli Reference Center2 and

3. Department of Biology,3 Pennsylvania State University, University Park, Pennsylvania 16802

Abstract

ABSTRACT Multilocus enzyme electrophoresis was applied to detect allelic variation and multilocus genotypes (electrophoretic types [ETs]) among 43 Escherichia coli isolates from weaned pigs suffering from edema disease or from diarrhea. ETs were analyzed in relation to O serogroups and virulence genes ( sta , stb , lt , stx 2 , and f18 ) by DNA hybridization. Genomic diversity was the lowest in serogroup O138, while virulence genes ( stx 2 and f18 ) were the most uniform in serogroup O139. In general, the serogroups or toxin and F18 fimbria types were not related to selected ETs, suggesting that the toxin and f18 fimbria genes in E. coli isolates from pigs with postweaning diarrhea or edema disease occur in a variety of chromosomal backgrounds.

Publisher

American Society for Microbiology

Subject

Microbiology (medical)

Link

https://journals.asm.org/doi/pdf/10.1128/JCM.37.5.1642-1645.1999

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