Primers for Typing Salmonella spp. using Random Amplified Polymorphic DNA (RAPD) Analysis

Salmonella spp.의 RAPD Typing을 위한 Primer의 분리력 비교

  • Published : 2003.12.01

Abstract

Random amplified polymorphic DNA (RAPD) analysis is based on the amplification of random DNA segment using a single arbitratrary primer. For typing Salmonella spp., polymorphic DNA patterns identified by this method can be used. To select the primers for RAPD typing Salmonella spp., the performances of 20 primers were compared by analyzing 16 Salmonella spp. reference strains. Reproducible electrophoresis patterns were obtained. Among the 20 primers tested, 4 primers (A, OPG04, OPG10, OPL03) showed better differentiation than the others. At the time discrimination index, band clarity, band number and difficulty of band scoring were considered. These primers will be useful for typing Salmonella spp. in the future. Curretly, we are under investigation for the RAPD typing of contaminated Slmonella spp. for the risk analysis of pork processing plant using the primers.

RAPD 분석은 한 개의 primer를 이용하여 임의의 DNA조각을 증폭하는 것이다. 이때 만들어지는 여러 형태의 DNA band유형을 이용하여 살모넬라를 분류할 수 있다. 살모넬라를 효과적으로 RAPD typing할 수 있는 primer들을 엄선하기 위하여 살모넬라 표준군주 16종을 대상으로 총 20가지 primer들의 RAPD 분리력을 비교하여 보았다. 결과는 재현성이 높았으며 이중 primer A, OPG04, OPG10, OPL-03을 16가지 균 모두를 다른 유형으로 분리하였고 primer OPB-17, OPB-6, OPG08, OPL-02는 15가지 유형으로 분리하였다. 이들은 discrimination index, band의 숫자, band scoring의 난이도 등을 고려해 볼 때 나머지 primer 들에 비해 우수한 분리력을 보였다. 이들 primer들은 장창 살모넬라의 RAPD typing에 이용될 수 있을 것으로 보이며, 현재는 이들을 이용하여 돈육 공장의 오염원 구명을 위한 연구를 수행 중이다.

Keywords

References

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