Plant Systematics and Evolution

, Volume 219, Issue 3, pp 181-197

First online:

Morphological evolution and ecological diversification of the forest-dwelling poppies (Papaveraceae: Chelidonioideae) as deduced from a molecular phylogeny of the ITS region

  • Frank R. BlattnerAffiliated withDepartment of Taxonomy, Institute of Plant Genetics and Crop Plant Research (IPK)
  • , Joachim W. KadereitAffiliated withInstitut für Spezielle Botanik, Johannes Gutenberg-Universität Mainz

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Sequences of the ITS region of nrDNA were analyzed for the seven genera of Papaveraceae subf. Chelidonioideae s.str. Three major clades can be recognized. These are 1.Chelidonium/Hylomecon/Stylophorum, 2.Eomecon/Sanguinaria, and 3.Bocconia/Macleaya. The monophyly of genera in the first of these three clades is doubtful, and clades two and three are sister to each other. Use of the ITS phylogeny of the subfamily to trace its morphological and ecological evolution shows that morphological change is concentrated in theBocconia/Macleaya clade, and probably related to the evolution of wind-pollination from insect-pollination in these two genera after habitat shift.

Key words

Papaveraceae Bocconia Chelidonium Eomecon Hylomecon Macleaya Sanguinaria Stylophorum phylogenetic analysis ITS morphological evolution