식물분류학회지 (Korean Journal of Plant Taxonomy)

  • 제45권2호
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  • Pages.145-157
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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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한국-일본과 중국-대만 석곡의 유전적 차이

Genetic differences between Korean-Japanese and Chinese-Taiwanese Dendrobium moniliforme (L.) Sw.

  • 김영기 (고려대학교 생명과학대학 생명과학부) ;
  • 강경원 (바보난농원) ;
  • 김기중 (고려대학교 생명과학대학 생명과학부)
  • 투고 : 2015.01.27
  • 심사 : 2015.05.06
  • 발행 : 2015.06.30
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초록

우리나라 석곡과 석곡이 자연 분포하는 인접의 일본, 대만, 중국 석곡간의 유전적 차이를 규명하고 약재로 유통되는 석곡의 동종성을 검증하기 위하여, 4개국의 여러 집단에서 기원한 석곡 30여 개체 및 근연의 28종간 핵 ITS 지역 및 엽록체 rbcL, matK, trnH-psbA 지역 등의 염기서열을 비교분석하였다. 계통학적 분석 결과 한국산 석곡과 원기재지인 일본의 석곡은 단계통군을 이루었으며, 염기서열상으로도 큰 차이가 없어, 동일종으로 판단되었다. 그러나 중국 및 대만산 석곡은 한국 및 일본 석곡과는 매우 다른 분기군들을 이루어, 측계통군 또는 다계통군을 형성하였다. 근연의 다양한 석곡속 종들이 한국-일본 석곡과 중국-대만 석곡 사이에 위치하였고, 중국-대만 석곡 개체간에도 다양한 근연의 다른 종들이 위치하였다. 원래 석곡이 일본에서 기재되었으므로 한국-일본 석곡이 원종이다. 그러나 중국-대만 석곡은 다양한 다른 종의 복합체로 생각되며, 중국-대만 석곡의 경우 종의 실체 파악을 위하여 보다 자세한 조사가 필요하다. 우리나라-일본 석곡의 경우 집단 간의 유전적 차이가 거의 없었고, 대만-중국 석곡의 경우는 개체간의 유전적 이질성이 매우 높았다.

The nucleotide sequences of nuclear ribosomal ITS regions and chloroplast rbcL, matK and psbA-trnH regions of 30 individuals of Dendrobium moniliforme from several localities in four countries and 28 related species of Dendrobium were compared to investigate the genetic differences among Korean, Japanese, Taiwanese and Chinese D. moniliforme, and to verify the homogeneity of D. moniliforme, which is used as a traditional medicine in East Asia. A phylogenetic analysis showed that Korean D. moniliforme and Japanese D. moniliforme form a monophyletic group, with no significant differences between their nucleotide sequences. This confirms that they are the same species. However, the Chinese and Taiwanese D. moniliforme were polyphyletic. Various species related to D. moniliforme were located between the Korean-Japanese D. moniliforme and the Chinese-Taiwanese D. moniliforme, and other related species were found between individuals of Chinese-Taiwanese D. moniliforme. D. moniliforme is described in Japan, providing evidence that the Korean-Japanese D. moniliforme is the original species. In addition, our data suggest that the Chinese-Taiwanese D. moniliforme complex is a mixture of a range of other species. Further studies are required to understand the taxonomic identity of this species. In the Korean-Japanese D. moniliforme, there were almost no genetic differences among the localities, whereas the genetic heterogeneity was high among individuals of the Chinese-Taiwanese D. moniliforme.

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피인용 문헌

  1. Restoration of endangered orchid species, Dendrobium moniliforme (L.) Sw. (Orchidaceae) in Korea vol.46, pp.2, 2016, https://doi.org/10.11110/kjpt.2016.46.2.256
  2. How Climate Change Will Alter the Distribution of Suitable Dendrobium Habitats vol.8, pp.None, 2020, https://doi.org/10.3389/fevo.2020.536339