Staphylococcus aureus: study of genomic similarity of strains isolated in veterinary pathology using amplified fragment length polymorphism (AFLP).
Comp Immunol Microbiol Infect Dis
; 27(4): 247-53, 2004 Jul.
Article
in En
| MEDLINE
| ID: mdl-15177999
ABSTRACT
Staphylococcus aureus is a widespread pathogen causing infections in different animal species. The extensive use of antibiotics, particularly methicillin, causes the rise of antibiotic-resistant strains (MRSA). In order to verify the epidemiology and genetic relatedness among MRSA and sensible strains (MSSA), an accurate fingerprinting technique, the amplified fragment length polymorphism (AFLP), was carried out. The isolates were cultured, subdivided on MRSA and MSSA and submitted for the genomic DNA extraction that was utilized for AFLP. The data were analysed for genetic similarity using the Dice coefficient. The results of genomic analysis among MRSA and MSSA and within them revealed that the major component of variation was due to variation within strains (82.12%), while variance among strains was lower (17.88%). The low level of genomic similarity found among S. aureus strains implies high level of genetic diversity. Different similarity was found as well in all strains independently of the source.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Staphylococcal Infections
/
Staphylococcus aureus
/
Methicillin Resistance
Limits:
Animals
Language:
En
Journal:
Comp Immunol Microbiol Infect Dis
Year:
2004
Document type:
Article
Affiliation country:
Italy