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芍药品种变异丰富,表型性状的研究对各品种进行科学分类及亲缘关系的研究具有重要意义。本研究以芍药DUS测试指南(2012版)为依据,以不同品种群的47个芍药品种为研究对象,选取了株高、分枝能力、茎秆颜色等33个表型性状(二元性状9个,数量多态性状3个,定性多态性状21个)进行了R型聚类分析、主成分分析和Q型聚类分析。结果表明:基于33个表型性状的聚类结果可以较好地区分芍药不同品种群的品种,其中国内品种与大多数国外品种亲缘关系较远;杂种芍药品种群的品种由于多亲本参与,起源复杂,聚类结果比较分散;伊藤品种群与杂种芍药品种群存在较近亲缘关系。本研究与前人利用形态和分子标记进行品种分类的结果基本一致,能够较准确反映品种间、品种群间的亲缘关系。
Paeonia species rich in variability, phenotypic traits of all varieties of scientific classification and genetic relationship of great significance. In this study, the peony DUS Test Guideline (2012 edition) as the basis, with 47 different varieties of peony varieties as the research object, selected the plant height, branching ability, stem color 33 phenotypic traits (binary traits 9 3 polymorphic traits and 21 qualitative polymorphic traits) were analyzed by R-cluster analysis, principal component analysis and Q-cluster analysis. The results showed that the clustering results based on 33 phenotypic traits could distinguish the cultivars of different cultivars of Paeonia lactiflora. The genetic relationships among the cultivars of Chinese peony cultivars were far from those of most foreign cultivars. Complex, clustering results are relatively dispersed; Ito varieties and hybrids Paeonia species population there is a close genetic relationship. The results of previous studies on morphological classification and molecular marker classification were basically the same, which could more accurately reflect the genetic relationship among cultivars and breeds.