Korean Journal of Plant Resources (한국자원식물학회지)

The Plant Resources Society of Korea (한국자원식물학회)
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Leaf Morphological Characteristics and Variation of Sorbus alnifolia (Sieb. et Zucc.) K. Koch in 11 Natural Habitats

국내자생 팥배나무 11개 천연집단의 잎 형태적 특성과 변이

  • Kim, Young Ki (Division of Special Forest Product, National Institute of Forest Science) ;
  • Kim, Sea Hyun (Division of Special Forest Product, National Institute of Forest Science) ;
  • Kim, Moon Sup (Division of Special Forest Product, National Institute of Forest Science) ;
  • Yun, A Young (Department of Forest Resources, Sunchon National University) ;
  • Park, In Hyeop (Department of Forest Resources, Sunchon National University) ;
  • Go, Young Seok (Department of Forest Resources, Sunchon National University)
  • 김영기 (국립산림과학원 산림소득자원연구과) ;
  • 김세현 (국립산림과학원 산림소득자원연구과) ;
  • 김문섭 (국립산림과학원 산림소득자원연구과) ;
  • 윤아영 (국립순천대학교 산림자원학과) ;
  • 박인협 (국립순천대학교 산림자원학과) ;
  • 고영석 (국립순천대학교 산림자원학과)
  • Received : 2018.10.29
  • Accepted : 2019.01.10
  • Published : 2019.02.28
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Abstract

This study was conducted to provide a basic data such as leaf morphological characteristics, total 110 individual trees selected from 11 wild population, for selective breeding. As a result of investigation of the twenty morphological characteristics of the leaf, there were statistically significant differences in all leaf characteristics among the populations. Especially, Mt. Mani population had larger leaf length (LL), width (LW) and area (LAR) than other populations. On the other hand, Mt. Beakwoon and Mt. Duryun had smaller leaf size (LL, LW and LAR) among the populations. Its principal component analysis (PCA) results showed that it represented 72.9% accumulated explanation from three principal component. The characteristics such as leaf area, leaf length and leaf width were highly contributed for classification among populations. According to the cluster analysis, the natural S. alnifolia populations were classified into five groups and Mt. Mani population was different from the other population.

본 연구는 우리나라에 자생하고 있는 팥배나무 11개 집단으로부터 잎의 형태적 특성과 변이를 조사하여 조경수로서의 팥배나무 선발 및 육종에 대한 기초자료를 제공하고자 수행하였다. 잎의 형태적 특성 12개를 조사하고 집단 간 차이를 비교한 결과 11개 특성에서 유의적인 차이가 인정되었다. 특히 잎의 길이와 너비, 엽면적 등 잎 크기와 관련된 인자들은 마니산 집단이 모두 상위그룹에 속하여 비교적 큰 경향을 나타냈으나, 백운산과 두륜산은 하위 그룹으로 분류되어 비교적 작은 경향을 나타냈다. 주성분 분석을 실시한 결과 제1 주성분은 29.9%의 설명력이 있으며 엽면적, 잎의 너비, 잎의 길이 순으로 높은 상관을 나타내어 잎의 형태적 차이를 설명하는 주요 요인으로 나타났고, 제5 주성분까지 72.9%의 누적 설명력을 나타냈다. 제5 주성분까지의 득점치를 새로운 변량으로 하여 유집분석을 실시한 결과 I그룹인 광교산과 안면도 집단, II그룹인 덕유산 등 3집단, III그룹인 발왕산 등 3집단, IV그룹인 가지산과 축령산 집단, V그룹인 마니산 집단 등 5개 그룹으로 분류되었고, 지리적으로 인접 집단 간의 구분은 명확하게 이루어지지 않았다.

Keywords

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Fig. 1. Location map of selected populations of S. alnifolia. 1. Mt. Mani, 2. Mt. Chukyong, 3.Mt. Gwangyo, 4. Mt. Balwang, 5. Mt. Worak, 6. Anmyundo, 7. Mt. Geumo, 8. Mt. Gaji, 9. Mt. Deogyu, 10. Mt. Baekwoon, 11. Mt. Duryun.

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Fig. 2. Leaf characteristics of S. alnifolia.

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Fig. 4. Cluster dendrogram of 11 populations of S. alnifolia based on 12 characteristics.

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Fig. 3. Scatter diagram of 11 populations of S. alnifolia based on principal component 1 and 2.

Table 1. Leaf characteristics of S. alnifolia

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Table 2. Coefficient of variation of S. alnifolia

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Table 3. Simple correlation coefficients between leaf characteristics

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Table 4. Results of principal component analysis and eigenvector association to eigenvalue obtained from principal component on 12 characteristics of S. alnifolia

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Table 5. The result of the major component points of 11 populations in S. alnifolia cluster analyzed by new variations

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