Korean Journal of Plant Taxonomy (식물분류학회지)

The Korean Society of Plant Taxonomists (한국식물분류학회)
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Systematics of Korean Thalictrum L. based on a morphological cladistic analysis

형태학적 분계분석에 의한 한국산 꿩의다리속(Thalictrum L.) 식물의 계통학적 연구

  • Published : 2009.06.30
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Abstract

We used Maximum parsimony and Neighbor-joining to investigate phylogenetic relationship of the genus Thalictrum in Korea with 39 morphological characters. The plant materials were used for ingroup 21 taxa and outgroup 1 taxon including a Korean endemic plant. This study confirmed that Sect. Thalictrum and Sect. Camptonotum formed monophyletic group by 100% and 83% bootstrap values respectively, and Sect. Camptonotum appeared to be Sect. Thalictrum's sister group. Sect. Erythrandra and Sect. Physocarpum formed paraphyletic groups. Sect. Physocarpum except T. osmorhizoides appeared to be polytomy. Sect. Tripterium and Sect. Omalophysa formed an independent clade. The shape of stamen is the important character representing the phylogenetic pattern of the genus Thalictrum; the bat and filiform types might be derived from clavate type. The pollination patterns (entomophily, anemophily), and presence of calyx at flowering time may also be related to the evolution of the Thalictrum flowers.

한국산 꿩의다리속 식물의 계통 및 유연관계를 밝히기 위해 39개의 형태 형질을 바탕으로 Maximum parsimony와 Neighbor-joining을 분석하였다. 식물재료는 한국 고유종을 포함해 내군 21분류군과 외군 1분류군이 사용되었다. 좀꿩의다리절과 금꿩의다리절은 각각 100% 부트츠랩 값과 83% 부트츠랩 값으로 단계통군을 형성하였고, 금꿩의다리절은 좀꿩의다리절의 자매군으로 나타났다. 꽃꿩의다리절과 산꿩의다리절은 측계통군을 형성하였다. 그늘꿩의다리를 제외한 산꿩의다리절은 방사상분지로 나타났다. 꿩의다리절과 발톱꿩의다리절은 각각 독립적인 분계군를 형성하였다. 꿩의다리속 식물에서 주요한 형질인 수술의 모양은 곤봉형이 가장 원시적이며, 원시적인 곤봉형에서 봉형, 그리고 실형으로 파생되는 것으로 나타났다. 수술의 형태는 수분방법(충매, 풍매), 개화시 꽃받침의 존재유무 등 꿩의다리속 식물의 꽃 진화에도 관련되어 있다고 판단된다.

Keywords

Acknowledgement

Supported by : 한국학술진흥재단

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