title: Phylogenetic relationships of Staphylococcus aureus from bovine mastitis based on coagulase gene polymorphism.
abstract: Coagulase gene restriction fragment length polymorphism (RFLP) patterns were analyzed to determine the phylogenetic relationship among isolates of Staphylococcus aureus from the Czech Republic (n = 27), France (n = 48), Korea (n = 115) and the United States (n = 278). A total of 468 isolates of S. aureus were subtyped into 41 coagulase genotypes. Cluster analysis placed the 41 types into nine clusters. Eighteen API Staph profiles were determined for 102 S. aureus isolates representing 1 to 4 isolates of each coagulase type. The results of the study suggest that based on coagulase gene RFLP analysis, several genetic variants of S. aureus are prevalent. Comparison of coagulase and API Staph profiles indicated that the two identification system were independent of each other.
authors.affiliation: Department of Veterinary Science, Center for Mastitis Research, The Pennsylvania State University, University Park 16802-3500, USA.
authors.forename: C
authors.initials: C
authors.lastname: Su
authors.forename: I
authors.initials: I
authors.lastname: Kanevsky
authors.forename: B M
authors.initials: BM
authors.lastname: Jayarao
authors.forename: L M
authors.initials: LM
authors.lastname: Sordillo
mesh_terms: D000818:Animals; D001426:Bacterial Proteins / Q000235:genetics*; D002417:Cattle; D016000:Cluster Analysis; D003030:Coagulase / Q000235:genetics*; D005260:Female; D005838:Genotype; D008414:Mastitis, Bovine / Q000382:microbiology*; D010802:Phylogeny; D012150:Polymorphism, Restriction Fragment Length; D013203:Staphylococcal Infections / Q000382:microbiology / Q000662:veterinary*; D013211:Staphylococcus aureus / Q000145:classification* / Q000201:enzymology / Q000235:genetics
chemical_list: D001426:Bacterial Proteins; D003030:Coagulase