Korean Journal of Plant Taxonomy (식물분류학회지)

The Korean Society of Plant Taxonomists (한국식물분류학회)
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Evaluation of leaf morphology for distinguishing Prunus (Rosaceae) from Jeju, Korea

제주도산 벚나무속 잎 형질의 분류학적 검토

  • Kim, Chan-Soo (Warm-Temperate Research Center, Korean Forest Research Institute) ;
  • Moon, Myung-Ok (Department of Life Sciences, Cheju National University) ;
  • Cheong, Eun Ju (Floral and Nursery Plant Research Unit, USDA/ARS, US National Arboretum) ;
  • Byun, Gwang Ok (Warm-Temperate Research Center, Korean Forest Research Institute)
  • 김찬수 (국립산림과학원 난대산림연구소) ;
  • 문명옥 (제주대학교 생명과학과) ;
  • 정은주 (미국 국립수목원) ;
  • 변광옥 (국립산림과학원 난대산림연구소)
  • Received : 2005.01.15
  • Accepted : 2005.05.21
  • Published : 2005.06.30
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Abstract

Leaf morphology was examined for Prunus species from Jeju Island. Analyzed were the leaf blade length, petiole length, width of blade, number of veins and angle of the base to the mid-vein as quantitative characters and the distribution of trichome, position of glandsand leaf features qualitative characters. A total of 25 OTU were phenetically analyzed by UPGMA. The resuling phenograms slightly differ from the currently recognized taxonomic system in two points. Prunus mume was clustered with P. padus and P. buergeriana. Prunu spendula and P. yedoensis were separated from the cluster of P. jaamasakura, P. speciosa, P. sargentii and P. jamasakura var. quelpaertensis. Except for the members of subgenus Cerasus, subgenera Padus (P. buergeriana and P. padus), Microcerasus (P. japonica) and Amygdalus were well defined. Some morphological characters of leaves such as the ratio of blade length to width, the length of blade to petiole, number of veins, the distance between the gland and base, the angle of base to mid-vein, and the distribution of trichome were useful as diagnostic features for Prunus from Jeju Island.

본 연구는 제주도산 벚나무속 식물을 대상으로 잎 형질의 분류학적 중요성을 검토하기 위하여 수행하였다 양적 형질은 엽신의 길이, 엽병의 길이, 엽폭, 엽맥 수, 분지각과 엽저각 등을 조사하였다. 질적 형질은 모용분포와 밀선의 위치 잎의 형태 등을 조사하였다. 총 25개의 OTU에 대해 UPGMA에 의한 표현형적 분석을 실시하였다. 그 결과 subgenus Prununophora에 속하는 매실나무가 subgenus Padus에 속하는 귀릉나무와 섬개벚나무와 같은 유집군을 형성한 점과 subgenus Cerasus에 속하는 벚나무, P. speciosa, 산벚나무, 사옥와 올벚나무, 왕벚나무가 별개의 유집군을 형성한 점 등 일부 분류체계와 다른 양상을 보였다 그러나 subgenus Padus에 속하는 귀릉나무와 섬개벚나무, subgenus Microcerasus에 속하는 이스라지, subgenus Amygdalus에 속하는 복사나무가 각각의 유집군을 형성하는 등 분류체계와 유사한 양상이 강하게 나타났다. 결국, 잎 형질, 그 중에서도 엽신의 길이와 폭의 비, 엽신의 길이와 엽병 길이의 비, 엽맥 수, 잎 기부에서 밀선과의 거리, 주맥과 잎 기부의 좌 우각 등과 모용의 분포 등이 제주도산 벚나무속의 식별형질이 될 수 있을 것으로 판단되었다.

Keywords

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