Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Genetic Variation Based on Random Amplified Polymorphic DNA (RAPD) and Internal Transcribed Spacer (ITS) Region Sequences in Lepista nuda

RAPD와 ITS 영역에 의한 민자주방망이 버섯의 유전적 변이

  • Lee, Yang Suk (Department of Herbal Biotechnology, Daegu Haany University) ;
  • Kim, Nam Woo (Department of Herbal Biotechnology, Daegu Haany University) ;
  • Kim, Jong Bong (Department of Medical Life Science, Catholic University of Daegu)
  • 이양숙 (대구한의대학교 한약자원학과) ;
  • 김남우 (대구한의대학교 한약자원학과) ;
  • 김종봉 (대구가톨릭대학교 의생명과학과)
  • Received : 2012.08.02
  • Accepted : 2012.11.23
  • Published : 2012.11.30
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Abstract

A genetic variation of Lepista nuda and two genus Lepista species (L. irina and L. sordida) were analyzed by random amplified polymorphic DNA (RAPD) and internal transcribed spacer (ITS) sequence analysis. In the resulting RAPD analysis, 22 out of 40 random primers amplified polymorphic RAPD fragment patterns, the amplified bands were 355, and DNA fragment sizes were 200-400bp. Intraspecific genetic dissimilarity of the 10 L. nuda strains were calculated to range from 0% to 21.60%, L. sordida from 16.93% to 24.82%, L. irina were 20.62% to 25.54%, and intraspecific genetic dissimilarity of L. sordida and L. irina was 23.49%. The 673 base pairs were sequenced during the analysis of the ITS I and II region; six L. nuda strains intraspecific genetic dissimilarities ranged from 1.58% to 11.47%, L. nuda and L. sordida from 3.83% to 12.88%, L. nuda and L. irina from 7.11% to 15.61%, and intra-specific genetic variation between L. sordida and L. irina was 4.79%. The findings showed that RAPD and ITS sequencing could be used for developing molecular genetic markers and screening of unidentified genus Lepista species.

본 연구는 유럽에서 식용버섯으로 선호도가 높은 Lepista nuda (민자주방망이버섯)에 대하여 random amplified polymorphic DNA (RAPD)와 internal transcribed spacer (ITS) 염기서열을 이용하여 종내 및 종간의 유전적 변이를 분석하였다. RAPD 분석 결과 40개의 random primer 중 다형성을 나타내는 primer는 22개 였으며, 증폭된 밴드는 355개, DNA 단편의 크기는 200~4,000 bp의 사이에 위치하였다. RAPD band들을 marker로 하여 Nei-Li's의 방법을 이용한 비유사도 지수행렬을 조사한 결과 L. nuda 종내 유전적 변이는 0~21.60%로 나타났으며, L. nuda와 L. sordida의 종간에는 16.93~24.82%, L. irina와는 20.62~25.54%로 나타났으며, L. sordida와 L. irina와의 종간 변이는 23.49%로 나타났다. ITS I 과 II 영역의 673 bp의 염기서열을 분석하여 비유사도 지수행렬을 조사한 결과, L. nuda의 종내 변이는 1.58~11.47%였으며, L. nuda와 L. sordida와는 3.83~12.88%로 나타났다. 그리고 L. nuda와 L. irina는 7.11~15.61%였으며, L. sordida와 L. irina와의 종간 변이는 4.79%로 나타났다. 본 실험결과 RAPD와 ITS실험을 통해 확인된 primer와 연기서열은 Lepista속의 종을 검색 및 분류 시 유전적 표지 marker로서 이용 할 수 있을 것으로 생각된다.

Keywords

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