芍药属牡丹组革质花盘亚组的系统演化探讨

芍药属牡丹组革质花盘亚组全部原产中国,它们对中国、日本、美国和欧洲的栽培牡丹品种影响甚大。作者在对本亚组9种牡丹(含3个亚种)形态学比较分析的基础上,结合花粉、染色体、蛋白质和DNA水平上的研究证据,提出了本亚组的系统演化的可能途径为:(1)卵叶牡丹→银屏牡丹→矮牡丹→圆裂四川牡丹→四川牡丹,(2)卵叶牡丹→凤丹→紫斑牡丹→太白山紫斑牡丹。另外作者对肉质花盘亚组的系统演化地位也进行了讨论。

STUDIES ON PHYLOGENY OF PAEONIA SECTION MOUTAN SUBSECTION VAGINATAE

All the 6 species in Moutan subsect. Vaginatae, originating in China, have a great effect on cultural Paeonia suffruticosa in China, Japan, America and Europe. On the bases of the morphological comparison, combined with the evidences of pollen, chromosome, protein and DNA studies, the authors put forward to a possible phylogenetic pathways as follow:(1) Paonia qiui→P. yinpingmudan→P. jishanensis→P. decomposita subsp. rotundiloba→P. decomposita subsp. decomposita,(2)P. qiui→P. ostii→P. rockii subsp. rockii→P. rockii subsp. taibaishanica. In addition, the phylogenetic status of subsect. Delavayanae was also discussed.