Journal of Wetlands Research (한국습지학회지)

Korean Wetlands Society (한국습지학회)
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Phylogenetic Relationship of Araliaceae in Korea by Seed Morphological Characteristics

종자 외부형태학적 특성에 의한 한국산 두릅나무과(Araliaceae) 식물의 종간 유연관계

  • Kim, Geon-Rae (Warm-Temperate and Subtropical Forest Research Center, Korea Forest Research Institute) ;
  • Kim, Hae-Ran (Warm-Temperate and Subtropical Forest Research Center, Korea Forest Research Institute) ;
  • Choi, Hyung-Soon (Warm-Temperate and Subtropical Forest Research Center, Korea Forest Research Institute) ;
  • Han, Jin-Gyu (Division of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Kim, Soo-Young (Wildlife Genetic Resources Center, National Institute of Biological Resources) ;
  • Kim, Chan-Soo (Warm-Temperate and Subtropical Forest Research Center, Korea Forest Research Institute)
  • 김건래 (국립산림과학원 난대아열대산림연구소) ;
  • 김해란 (국립산림과학원 난대아열대산림연구소) ;
  • 최형순 (국립산림과학원 난대아열대산림연구소) ;
  • 한진규 (국립산림과학원 산림유전자원부) ;
  • 김수영 (국립생물자원관 야생생물유전자원센터) ;
  • 김찬수 (국립산림과학원 난대아열대산림연구소)
  • Received : 2015.01.09
  • Accepted : 2015.03.24
  • Published : 2015.05.31
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Abstract

The purpose of this study is to describe and compare the morphological characteristics of seeds of 12 taxa of Araliaceae, and to evaluate their possible use for taxonomic considerations. For light microscope observations and measurements, the seeds were observed using Image Analyzing System. The observations were made on twenty randomly selected seeds of each species. Obtained data were statistically processed using analysis of variance. Principal Components Analysis indicated four groups of characters, the genera Aralia, Eleutherococcus, Panax and the others, which explained 65.47% of the total variation. As a results of Cluster Analysis using the eleven variables, 12 species of Araliaceae were also discriminated into four groups. Eleutherococcus senticosus and E. gracilistylus were closely related, which is well supported by the results from recent molecular studies. Also, the genera Dendropanax and Eleutherococcus were closely related in terms of seed characters.

본 연구는 국내에 자생하는 두릅나무과(Araliaceae) 식물 8속 12종을 대상으로 종자의 외부형태적 특성을 조사하고 측정된 형질을 이용하여 다변량분석을 통해 종들간의 유연관계를 밝히기 위해 수행하였다. 종자의 형태적 특성 조사는 각 종의 종자를 20립씩 무작위 선별하여 광학현미경으로 관찰하고 이미지분석시스템을 사용하여 크기를 측정하였다. 측정형질은 종자 크기, 표면 무늬, 광택 유무 등 총 11개 항목이며 이를 이용해 수리분석을 실시하였다. 주성분 분석결과, 전체 변수들 중 제 1주성분과 제 2주성분의 누적기여도는 65.47%이었으며, 제1주성분과 제2주성분에 의해 크게 두릅나무속(Aralia), 오갈피나무속(Eleutherococcus), 인삼속(Panax), 그리고 나머지 기타 속 총 4그룹으로 구분되었다. 군집분석 결과 역시 4그룹으로 구분되어 주성분분석과 동일한 결과를 보였다. 가시오갈피나무(Eleutherococcus senticosus)는 섬오갈피나무(E. gracilistylus)와 유연관계가 가까운 것으로 나타났으며 황칠나무속(Dendropanax)은 오갈피나무속(Eleutherococcus)과 근연관계로 나타났다.

Keywords

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