Korean Journal of Plant Taxonomy (식물분류학회지)

The Korean Society of Plant Taxonomists (한국식물분류학회)
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Taxonomic Review of the Umbelliferous genus Sium L. in Korea: Inferences based on Molecular Data

분자생물학적 자료에 의한 한국산 개발나물속의 분류학적 고찰

  • Lee, Byoung-Yoon (Division of Vascular Plants, National Institute of Biological Resources) ;
  • Lee, Jeongran (National Academy of Agricultural Science) ;
  • Ko, Sung-Chul (Department of Biological Sciences, Hannam University)
  • 이병윤 (국립생물자원관 고등식물연구과) ;
  • 이정란 (국립농업과학원 농업유전자원센터) ;
  • 고성철 (한남대학교 생명과학과)
  • Received : 2010.09.07
  • Accepted : 2010.11.25
  • Published : 2010.12.31
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Abstract

The taxonomy of umbel genus Sium L., Apiaceae in Korea was reviewed on the basis of molecular phylogenies derived from sequences of nuclear ribosomal DNA internal transcribed spacer (ITS) regions. The ITS sequence-derived phylogeny indicates that S. heterophyllum, endemic to Korea, is identical to S. tenue, which is known as endemic to Ussuri regions. Comparisons of sequence pairs across both spacer regions gave divergence values and revealed the identity between S. tenue and S. heterophyllum on Mt. Moonsoo. On the other hand, the ITS sequences support species delimitation of S. ternifolium, as reported recently as a new species that differs from other Sium species. The ITS sequence divergence values of 1.4 and 1.6% support species delimitation between S. serra and S. ternifolium.

핵 리보좀 DNA ITS 구간의 염기서열 정보를 이용하여 한국산 산형과 개발나물속의 분자 계통학적 연구를 수행하였다. ITS 계통수는 한반도 고유종인 대암개발나물(S. heterophyllum)이 한반도에 생육이 보고된바 없는 러시아 우수리지역의 고유종인 S. tenue와 동일한 종임을 밝혔다. ITS 1과 ITS 2 구간의 염기서열 비교시 S. tenue와 인천 문수산에 생육하고 있는 대암개발나물이 100% 일치함을 확인할 수 있었다. 또한 ITS 구간의 염기서열은 최근 신종으로 발표된 세잎개발나물(S. ternifolium)이 개발나물속의 다른 분류군과 뚜렷하게 구별됨을 지지하고 있었다. 세잎개발나물은 유연관계가 가장 가까운 일본 고유종 S. serra의 ITS 염기서열 비교시 1.4와 1.6%의 차이점을 가지고 있음이 확인되어 종으로서의 처리가 적합함을 확인할 수 있었다.

Keywords

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