식물분류학회지 (Korean Journal of Plant Taxonomy)

  • 제41권4호
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  • Pages.338-344
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  • 2011
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  • 1225-8318(pISSN)
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  • 2466-1546(eISSN)
한국식물분류학회 (The Korean Society of Plant Taxonomists)
권호 표지

ITS와 psbA-trnH 염기서열에 의한 한국산 메꽃속(Calystegia R.Br.)의 분류학적 연구

Molecular Phylogenetic Studies of Korean Calystegia R.Br. Based on ITS and psbA-trnH Sequences

  • 김상준 (영남대학교 이과대학 생명과학과) ;
  • 박선주 (영남대학교 이과대학 생명과학과)
  • Kim, SangJun (Department of Life Science, Yeungnam University) ;
  • Park, SeonJoo (Department of Life Science, Yeungnam University)
  • 투고 : 2011.11.21
  • 심사 : 2011.12.09
  • 발행 : 2011.12.31
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초록

한국산 메꽃속 4종 1변종과 1종의 외군을 대상으로 종의 실체를 확인하고, 유연관계 및 진화경향성을 파악하기 위하여 분자계통학적 연구를 수행하였다. 메꽃속의 주요 형질로는 잎의 모양과 화관의 길이, 털의 유무 등이 있다. 하지만 잎의 형질에서 많은 변이 현상이 나타나고 있어 종 분류에 어려움이 있다. 분자계통학적 연구결과 갯메꽃이 하나의 분계조를 형성하여 가장 기부에 위치하였고, 애기메꽃과 큰메꽃의 ITS 지역과 psbA-trnH 지역에서는 독립적인 분계조를 형성하지 못하여 두 종의 관계가 명확하지 않았다. 따라서 두 종의 관계는 본 연구에 사용된 마커들로는 부족하며 앞으로 더 많은 개체와 다양한 마커들을 통한 연구가 수반되어야 한다. 메꽃은 선메꽃과 유집되어 유연관계가 가까운 것으로 나타났다.

Molecular phylogenetic studies were conducted to evaluate evolutionary trends, relationships and species identities among four species, one variety and one outgroup of the Korean Genus Calystegia. The important characteristics of Calystegia are the shape of the lamina, the length ofthe corolla and the presence of hair. However, many variations were observed as regards the characteristics of the leaf, making true identification difficult. In molecular phylogenetic studies, C. soldanella formed one clade, and it was located mostly in the base. C. hederacea and C. sepium did not form an independent clade in their ITS regions and psbA-trnH regions, and this investigation could not confirm a relationship. Therefore, a relationship between these two species is not sufficiently supported by these markers (ITS and psbA-trnH). Consequently, this research should be achieved through many samples and markers. C. sepium var. japonica and C. dahurica are closely related.

키워드

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