Molecular Typing of Staphylococcus aureus Strains from Domestic Animals and Humans by REP-PCR Analysis

REP-PCR을 이용한 국내 사람과 동물유래 Staphylococcus aureus 분리주의 Molecular Typing

  • Woo Yong-Ku (Institute of Laboratory Animal Resources, Seoul National University) ;
  • Kim Shin (College of National Science, An-dong National University)
  • 우용구 (서울대학교 실험동물자원관리원) ;
  • 김신 (안동대학교 미생물학과)
  • Published : 2005.03.01


To select the rapid and efficient molecular subtyping method for epidemiologic monitoring of Staphylococcus aureus (S. aureus) strains at clinical laboratory levels, a total 116 of S. aureus and MRSA (methicillin-resistant S. aureus) strains from diverse animal species [Korean cattle, goat, pig, dog, chicken, mouse] and also humans were analyzed. To evaluate the discriminatory ability (DA) of individual PCR methods, random amplified polymorphic of DNA [RAPD; 4M & RA primer], repetitive extragenic palindromic sequences PCR (REP-PCR), and enterobacterial repetitive intergenic consensus sequences PCR (ERIC-PCR) methods were conducted and then compared on their Simpson's index of diversity (SID) values based on the dendrogram patterns, which was produced by software program (BiolD2+ & GelCompar II). In first, RAPD using the 4M primer (SID 0.915) was expressed more higher SID value than that of RA primer (SID 0.874). 4M primer was expressed more powerful DA than RA. Both REP-PCR (SID 0.930) and ERIC-PCR (SID 0.929) methods showed much more higher DA than that of RAPD. According to the present results, both REP-PCR and ERIC-PCR among the tested analysis methods were found as the most reliable and discriminative molecular subtyping method, because they expressed the highest DA for the present S. aureus and MRSA strains.


animal;REP-PCR;S. aureus;SID;RAPD


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