Pulsed-Field Gel Electrophoresis of Staphylococcus hyicus and Staphylococcus chromogenes Genomic DNA and Its Taxonomic, Epidemiologic and Ecologic Applications in Veterinary Medicine

Journal of Veterinary Medical Science

Carol G. GEORGE¹  Akira SHIMIZU²  Deborah N. BALLARD¹  Wesley E. KLOOS¹  Herman A. BERKHOFF³ 

[1] Department of Genetics, College of Veterinary Medicine, North Carolina State University;Department of Microbiology and Immunology, Faculty of Agriculture, Kobe University;Department of Microbiology, Pathology, Parasitology, College of Veterinary Medicine, North Carolina State University

关键词: genomic DNA fingerprinting;    pulsed-field gel electrophoresis;    Staphylococcus chromogenes;    Staphylococcus hyicus;   

DOI  :  10.1292/jvms.59.443

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

References(44)Cited-By(5)One hundred and thirty-eight strains of Staphylococcus hyicus and 21 strains of S. chromogenes isolated from animals were analyzed by pulsed-field gel electrophoresis (PFGE) after restriction endonuclease SmaI digestion of chromosomal DNA. Eighty-eight strains of S. hyicus from pigs with or without exudative epidermitis (EE) generated 16 to 26 fragments in the size range of <1 to 485 kb, and yielded 39 different patterns. With regard to the strains from pigs with EE, PFGE patterns differed according to the country of origin. Outbreaks of EE occurring on four separate pig farms in Japan involved S. hyicus with different PFGE patterns. The PFGE patterns shown by S. hyicus strains from 4 kinds of animals were compared. Strains from pigs differed from those isolated from chickens (n=45; 18 to 24 fragments of <1 to 425 kb), cows (n=3; 17 to 19 fragments of <1 to 475 kb), and goats (n=2; 16 or 17 fragments of <1 to 1,125 kb). Also, each of the chicken, cow and goat strains had a host-specific fragment. The results suggest that PFGE analysis might be a useful marker for distinguishing ecovars within S. hyicus. In contrast, strains of S. chromogenes from pigs and cows generated 17 to 24 fragments ranging from <1 to 545 kb. The PFGE patterns of S. chromogenes strains were more highly conserved than those of S. hyicus. S. chromogenes strains could be distinguished from S. hyicus strains by fragments within the range of 305 to 545 kb. The results indicate that PFGE analysis could be used to distinguish between S. hyicus and S. chromogenes. We conclude that PFGE analysis is a useful tool not only for species or strain identification but also for epidemiologic or ecologic studies of S. hyicus and S. chromogenes.

【 授权许可】

Unknown