【作者】 姚涓； 索志立； 张会金； 张治明；

【Author】 Yao Juan Suo Zhili Zhang Huijin Zhang Zhiming( Beijing Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Beijing 100093)

【机构】 中国科学院植物研究所北京植物园；

【摘要】 测量了8个牡丹品种、17个植株(每品种2～3株)的羽状复叶的20个性状。利用NTSYS-pc(version 1.80)软件对其进行聚类分析,结果17个植株按照各自所属品种聚类在了一起。本研究结果表明,以花部特征(如花型、花色等)为主要目标进行长期人工选育的中国牡丹品种,其羽状复叶特征也产生了很大程度的遗传分化。本研究显示了叶部特征在牡丹品种鉴定中的重要性。更多还原

【Abstract】 Twenty characters of the pinnately compound leaf of 17 individual plants representing 8 cultivars in Paeonia suffruticosa Andr. were measured and the data were analyzed using NTSYS-pc software (version 1.80) . As a result, the seventeen individuals are grouped together according to the cultivar they belonged to. As it is well known, breeding objectives of Chinese tree peony cultivars are mainly selections for new characteristics at flower part, e.g. flower type or flower colour, etc. But the results in this paper indicated that genetic differentiation of the pinnate compound leaf also occurred simultaneously to a great extent, during the period of human cultivation and self- succession. It is suggested that the leaf characters might be much more important for identification of tree peony cultivars beyond our general knowledge.更多还原