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基于表型性状的芍药不同品种群亲缘关系分析
引用本文:杨柳慧,于晓南.基于表型性状的芍药不同品种群亲缘关系分析[J].植物遗传资源学报,2016,17(2):209-216.
作者姓名:杨柳慧  于晓南
作者单位:北京林业大学园林学院/花卉种质创新与分子育种北京市重点实验室/国家花卉工程技术研究中心,北京,100083
基金项目:国家自然科学基金(31400591)
摘    要: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。

关 键 词:芍药  DUS测试指南  表型性状  聚类分析  亲缘关系
收稿时间:4/4/2015 12:00:00 AM
修稿时间:2015/5/12 0:00:00

Phylogenetic relationship analysis of different cultivars groups of herbaceous peony according morphological characteristics
yangliuhui and yuxiaonan.Phylogenetic relationship analysis of different cultivars groups of herbaceous peony according morphological characteristics[J].Journal of Plant Genetic Resources,2016,17(2):209-216.
Authors:yangliuhui and yuxiaonan
Abstract:The cultivars of herbaceous peony are variable, and the study of morphological characters has a great significant in scientific classification. At the same time, it also can provide scientific guidance on how to choose hybrid breeding parent.According to the DUS guidelines (2012) for the conduct of tests of herbaceous peony,33 major morphological characters (9 qualitative binary characters,3 quantitative characters and 21 qualitative polymorphic characters) such as height, branching ability and stem color had measured from 47 cultivars peonies. Besides, the author also made analysis of those databases with the methods of Q type cluster, R type cluster and principal component. The result showed the systemic cluster of 33 morphological characters can distinguish different herbaceous peony of different groups well. At the same time, Chinese cultivars of herbaceous peony have a distance with foreign cultivars in phylogenetic relationship. The cluster result of hybrid group is sporadic, there are two resons:1)cultivars that belong to hybrid group have a complex origin;2)multiple parents were participated in the breeding progress. The results were consistent with those in previous studies with the methods of traditional classification system and the methods of molecular markers, it can reflect the phylogenetic relationship between cultivars and cultivars group accurately.
Keywords:Herbaceous peony  DUS  morphological characters  systemic cluster  phylogenetic relationship
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