식물분류학회지 (Korean Journal of Plant Taxonomy)

  • 제45권1호
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  • Pages.36-44
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  • 2015
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  • 1225-8318(pISSN)
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  • 2466-1546(eISSN)
한국식물분류학회 (The Korean Society of Plant Taxonomists)
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유전적 유사성으로 보아 멀구슬나무와 천련은 동일종

Melia toosendan and M. azadarach are a single species due to their genetic similarity

  • 김회원 (고려대학교 생명과학대학 생명과학부) ;
  • 연승우 (일동제약(주) 중앙연구소) ;
  • 김기중 (고려대학교 생명과학대학 생명과학부)
  • Kim, Hoe-Won (Division of Life Sciences, School of Life Sciences, Korea University) ;
  • Yeon, Seung-Woo (ILDONG Research Laboratories, ILDONG Pharmaceutical Co. Ltd.) ;
  • Kim, Ki-Joong (Division of Life Sciences, School of Life Sciences, Korea University)
  • 투고 : 2015.01.27
  • 심사 : 2015.02.23
  • 발행 : 2015.03.31
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초록

한약재 천련자로 유통되는 중국 식물과 우리나라에도 분포하는 멀구슬나무의 연관성을 규명하기 위하여 중국남서부지역에서 천련자(Melia toosendan)로 채취하는 재료와 중국 남동부, 한국, 인도 등지에서 심고 있는 멀구슬나무(M. azadarach), 그리고 무환자나무과의 근연종들을 대상으로 핵 ITS, 엽록체 matK, rbcL, atpF-H, psbK-I, psbA-trnH 등 6개 마커의 염기서열을 비교분석하였다. 이들 염기서열 자료를 계통분석한 결과 한약재 천련자로 알려진 식물과 멀구슬나무는 동일종으로 판단된다. 이 두 종은 학자들에 따라서는 동일종 또는 이종으로 처리하던 것으로, 본 연구자들의 유전자 비교분석결과는 동일종으로 취급하는 것이 보다 타당함을 지지한다. 또한, 다양한 이명으로 세계 각지에서 기재된 멀구슬나무에 가장 가까운 종은 약재로 잘 알려진 님나무(Azadirachta indica)로, 이 종은 이전에 멀구슬나무속으로도 처리된 바 있다.

The nucleotide sequences of six markers, including nuclear ITS, chloroplast matK, rbcL, atpF-H, psbK-I and psbA-trnH, were analyzed for the plants known as Melia toosendan collected in Southwest China; M. azadarach planted in Southeast China, Korea and India; and species related to Sapindaceae in order to clarify the species boundary between M. toosendan and M. azadarach. The result of a phylogenetic analysis using the nuclear ITS and five chloroplast marker sequences determined that the plants known as M. toosendan and M. azadarach are the same species. These two species have been treated as a single species or as two different species depending on the researcher. The result of the present study supports the contention that the two species are the same. In addition, a sister species to M. azadarach registered in various countries with various basionyms is Azadirachta indica, a well-known medicinal plant. It has previously been classified as a member of the genus Melia.

키워드

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