Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Development of Molecular Detection Marks Using PCR-RFLP Technique for Arkshell (Scapharca broughtonii Schrenck)

피조개, Scapharca broughtonii Schrenck RFLP 마커 개발

  • 조은섭 (국립수산과학원 남해수산연구소) ;
  • 정춘구 (국립수산과학원 남해수산연구소) ;
  • 김철원 (국립수산과학원 남해수산연구소) ;
  • 손상규 (국립수산과학원 남해수산연구소)
  • Published : 2005.12.01
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Abstract

This study was differentiated between Korea and China arkshells using PCR-aided RFLP method which could identify the variation for inter-and intra-species of arkshell (Scapharca broughtonii Schrenck) at the level of DNA. The DNA fragment patterns were compared after digesting gene of mitochondrial 16S rDNA with 8 kinds of restriction enzymes. A 720 bp DNA fragment corresponding to 16S rDNA gene was amplified by PCR with primers ArkF-3 and ArkR-3. PCR products were cut by restriction enzymes (Pvull, BamHI, Hinfl, HaeIII, EcoRI, RsaI, Ksp221, and BstX21), and RFLP pattern was studied. A unique 275 bp DNA band was observed in the samples from Dukyang, Gamak, Namhae, Jinhae, and Taean in Korea when treated by Hinfl, but Chinese arkshell did not show. Treatment of HaeIII could discriminate the sample of Namhae and Jinhae from Dukyang/Gamak/Taean, as well as Korean and Chinese arkshell based on a 700 bp. However, PuvII, BamHI, EcoRI, RsaI, Ksp221, and BstX21 showed the same of 700 bp band in Korean and Chinese arkshell. The phylogenetic tree inferred from PCR-RFLP pattern comparsion in Korean arkshell was different that the distance between Dukyang/Gamak/Taean and Namhae/Jinhae was approximately 7. In particular, the distance between Korean and Chinese arkshell was 25. Consequently, HinfI and HaeIII played an important role in a reliable molecular tool for rapid discriminating Korean and Chinese arkshell, as well as a intra-species in Korea.

한국산과 중국산 피조개의 신속 진단, 유전적 특성 및 유연관계를 분석하기 위하여 DNA 수준에서 확인 할 수 있는 PCR-aided RFLP를 사용하였다. 피조개 mtDNA 165 rDNA gene를 제한효소로 처리하여 그 band 양상을 조사하고자 하였다. 165 rDNA gene을 분리하기 위하여 ArkF-3, ArkR-3 primer를 사용한 결과 한국산과 중국산 피조개 모두 분자량이 720 bp band가 나타났다 PCR에 의하여 증폭된 16S rRNA gene을 총 8종류의 제한효소(PvuII, BamHI, HinfI, HaeIII, EcoRI, RsaI, Ksp221, BstX21)로 절단하여 RFLP 양상을 보았다. HinfI의 제한효소 처리 시 득량, 가막, 남해, 진해, 태안산 피조개 모두 275 band절편이 관찰되었으나, 중국산은 나타나지 않았다. HinfI를 제외한 나머지 제한효소는 다형형이 관찰되지 않았고 한국산과 중국산 모두 700 bp의 동일한 band를 보였다. HaeIII에서도 득량, 가막, 태안과 남해와 진해산 PCR product가 700 bp위치에서 상이하게 보였다. 또한 한국산과 중국산 절편이 다르게 나타났다. 한국산 피조개 종내 restriction 쇼pe에 의해 유연관계의 결과에 의하면 득량, 가막, 태안은 동일한 유사도를 보였고, 남해와 진해와는 거리가 7 정도로 나타났다. 특히 한국산과 중국산 거리는 25로 나타났다. 이상의 결과를 보아서,HinfI 제한효소는 한국산과 중국산을 구별하는데 매우 유용한 molecular marker가 될 수 있을 것으로 판단되며, 유전적으로 거리가 먼 것으로 보인다. 또한 HaeIII은 한국산 종내 구분 및 중국산 신속 동정에 좋은 molecular tool로 사용될 것으로 예상된다.

Keywords

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  2. Population Genetic Structure of the Ark Shell Scapharca broughtonii Schrenck from Korea, China, and Russia Based on COI Gene Sequences vol.9, pp.2, 2007, https://doi.org/10.1007/s10126-006-6057-x
  3. Complete mitochondrial DNA sequence of the ark shell Scapharca broughtonii: An ultra-large metazoan mitochondrial genome vol.8, pp.1, 2013, https://doi.org/10.1016/j.cbd.2012.12.003
  4. Tandem repeat arrays in the mitochondrial genome as a tool for detecting genetic differences among the ark shellScapharca broughtonii vol.35, pp.3, 2014, https://doi.org/10.1111/maec.12078