Randomly Amplified Polymorphic DNA Analyses of Pestalotiopsis theae Isolated from Sweet Persimon

재배되는 단감나무로 부터 분리한 Pestalotiopsis theae의 RAPD 기법을 이용한 유전특성의 비교분석

  • Lee, Youn-Su (Division of Applied Plant Sciences, Kangwon National University) ;
  • Woo, Su-Jin (Division of Applied Plant Sciences, Kangwon National University) ;
  • Choi, Hei-Sun (Division of Applied Plant Sciences, Kangwon National University) ;
  • Kim, Kyoung-Su (Division of Applied Plant Sciences, Kangwon National University) ;
  • Kang, Won-Hee (Institute of Agricultural Science, Kangwon National University) ;
  • Kim, Myoung-Jo (Institute of Agricultural Science, Kangwon National University) ;
  • Shim, Jae-Ouk (Dongguk University) ;
  • Chang, Tae-Hyun (Research Institute of Plant Nutrition, Dae Yu, Co.) ;
  • Lim, Tae-Heon (Research Institute of Plant Nutrition, Dae Yu, Co.)
  • 이윤수 (강원대학교 농업생명과학대학 식물응용과학부) ;
  • 우수진 (강원대학교 농업생명과학대학 식물응용과학부) ;
  • 최혜선 (강원대학교 농업생명과학대학 식물응용과학부) ;
  • 김경수 (강원대학교 농업생명과학대학 식물응용과학부) ;
  • 강원희 (강원대학교 농업과학연구소) ;
  • 김명조 (강원대학교 농업과학연구소) ;
  • 심재욱 (동국대학교 응용생물학과) ;
  • 장태현 ((주)대유) ;
  • 임태헌 ((주)대유)
  • Published : 1998.09.30

Abstract

In this study, we evaluated the genetic relationships of fourty seven Pestalotiopsis theae isolates collected from diseased sweet persimon in various places in southern part of Korea using RAPD (Randomly Amplified Polymorphic DNAs) method. As a result of the amplification, eight primers showed total of 86 bands ranging from 0.3 Kb to 3.2 Kb. Among those 86 bands, 84 polymorphic bands were used for bionominal matrix code (0, 1), and UPGMA dendrogram analysis. Similarities among the compared isolates ranged from below 60% to more than 95%. Most of the compared isolates showed $50{\sim}80%$ similarities. The number of isolate pairs which showed more than 80% similarity were 248. The number of isolate pairs which showed $50{\sim}80%$ similarity were 789, and the number of isolate pairs which showed below 50% similarity were 21. Isolate SP-21 (No.9) showed below 50% similarity with all the isolates compared. At 50% similarity level, all the isolates compared, except isolate SP-21 (No.9), were included in one big group. At 65% similarity level, all the isolates compared, except isolate SP-21 (No.9), were divided into three different groups. At 75% similarity level, all the isolates compared, except isolates SP-47 (No. 23) and SP-21 (No.9), were divided into six different groups.

단감이 경제과수로 점차 부각되면서 재배면적이 증가하는 반면 단일 품종으로 편중됨에 따라 주요 재배지를 중심으로 그간 문제시되지 않았던 병해가 발생하여 이로 인해 단감의 품질과 농가소득에 많은 손해를 초래하고 있다. 이중 중요 병해는 Pestalotiopsis theae에 의한 단감나무 둥근갈색무늬병을 들 수 있고, 아직까지 국내에서는 Pestalotiopsis theae에 대한 구체적인 연구가 수행되지 않고 있는 실정이며, 본 연구는 이들 병원균에 대한 기초정보를 밝히기 위하여 수행되었다. Random amplified polymorphic DNA(RAPD)를 사용하여 P. theae의 유전적 유연관계를 분석하였다. P-28(No. 14)과 SP-33 (No. 15)은 0.976으로 97%의 가장 높은 유사성을 나타났으며 SP-18 (No. 7)과 SP-21 (No. 9)은 0.430으로 가장 낮은 유사성을 보였다. 서로 비교한 균주들 간의 유사성은 60% 이하로부터 95% 이상인 것도 있었으며, 대다수의 균주들은 $50{\sim}80%$의 유사성을 나타내었다. SP-21 (No.9)은 고립된 한 집단으로 나타났으며 비교한 모든 균주와 60% 이하의 낮은 유사성을 나타내었다.

Keywords

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