Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Assessment of Genetic Relationship among Watermelon Varieties Revealed by ISSR Marker

Inter-simple sequence repeat (ISSR) marker를 이용한 수박의 품종간 유연관계 분석

  • Kwon Yong-Sham (Variety Testing Division, National Seed Management Office, MAF) ;
  • Lee Won-Sik (Seobu Branch Office National Seed Management Office MAF) ;
  • Cho Il-Ho (Variety Testing Division, National Seed Management Office, MAF)
  • 권용삼 (농림부 국립종자관리소 재배시험과) ;
  • 이원식 (농림부 국립종자관리소 서부지소) ;
  • 조일호 (농림부 국립종자관리소 재배시험과)
  • Published : 2006.04.01
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Abstract

Inter-simple sequence repeat (ISSR) analysis were used to assess genetic diversity among 18 genotypes of watermelon (Citrullus lanatus Thunb.) including breeding lines and commercial varieties. The 21 ISSR primers selected from 100 primers were showed the amplification of 105 reproducible fragments ranging from about 200 bp to 5000 bp. A total of 58 DNA fragments were polymorphic with an average 2.7 polymorphic bands per primer. The polymorphic primers were divided into 18 anchored primers and 3 non anchored primers. All of the anchored primers were di-nucleotide repeat motif, and was more polymorphic than non anchored primers. Eighteen watermelon genotypes were classified into two large groups. Clustering was in some accordance with the division of fruit shape into 18 watermelon. Therefore, ISSR markers may be suitable for variety discrimination and for constructing a linkage map of watermelon.

ISSR markers를 이용하여 수박 18품종의 유전적 유연관계를 분석하여 얻어진 결과를 요약하면 다음과 같다. 수박 18품종의 genomic DNA와 ISSR primer 100개를 PCR 반응시킨 결과 다형성을 뚜렷하게 나타내는 primer는 21개 이였으며, 이들 primer에 의해 증폭된 밴드는 105개 이였고 다형성을 보이는 밴드는 58개 였으며 증폭된 DNA 단편의 크기는 $0.2{\sim}5.0kb$ 사이에 위치하였다. 다형성을 나타낸 primer는 18개의 anchored primer와 3개의 non-anchored primer로 구분되었고 모든 anchored primer는 2개의 염기서열이 반복된 형태를 나타내었으며, non-anchored primer보다. 다형성 정도가 높게 나타났다. 수박 18품종은 유전적 유사도 값 0.42를 기준으로 할 때 18개 품종을 2개의 그룹 으로 구분할 수 있었으며, 국내에서 육성된 품종은 유전적 유사도가 아주 높은 것으로 분석 되었고, 이들 품종은 수박의 과형에 따라 유사하게 구분되었다.

Keywords

References

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