매실의 다변량에 의한 양적 형질 분석
Mutivariate Analysis on Quantitative Characteristics of Prunus mume
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참고문헌
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초록
양적 형질을 중심으로 다변량 분석법에 의해 매실 품종들 간의 유전적 거리를 추정하고 이에 기초한 클러스터 분석을 실시하여 품종을 분류하였다. Mahalanobis’s distance (D)에 의하여 공시한 20개 품종을 5개 군으로 대별해 볼 수 있었는데, 제1군이 2품종, 제2군이 4품종, 제3군이 5품종, 제4군이 5품종, 제5군이 4품종으로 그룹을 형성하였다. 제1군과 제2군은 꽃잎 수와 암술 수가 많은 품종인 반면에 제3군과 제4군은 엽장과 엽폭은 높으나 꽃잎 수와 암술 수가 낮은 품종군이었다. 지리적 분포와 유전적 변이는 직접적인 관련이 없었다. 품종군 내, 품종 간의 D2에 가장 크게 영향을 미친 형질은 암술 수와 엽장 및 엽폭이었다.
Abstract
Varietal distances were measured by Mahalanobis’s D 2 statistics in 190 possible comparisons among twenty varieties of Prunus mume with twelve characters such as seed weight, length, width, and diameter, fruit weight, and number of sepals, petals, pistils, and stigmas, and leaf length and width. A complete linkage cluster analysis based on the Mahalanobis’s distance (D 2 ) was attempt. Twenty varieties of Prunus mume were largely classified into five subgroups. Group Ⅰ, Ⅱ, Ⅲ, Ⅳ and Ⅴ included two, four, five, five and four varieties, respectively. Most of the varietal groups were not associated with their geographical origins. Number of stigmas, and leaf length and width among the twelve characters were the largest contributors to the D 2 in both intra-and inter groups.
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