0000000000213436
AUTHOR
K. B. Jork
The phylogeny of the Papaveraceae sensu lato: morphological, geographical and ecological implications
On the background of the phylogeny of the Papaveraceae s.l., the evolution of the androecium and gynoecium, the geographical distribution, and the ecological differentiation of the family is discussed. An effort is made to homologize the diverse androecia of Pteridophyllum, Hypecoum, Fumariaceae and Papaveraceae s.str., and it is concluded that both the polyandrous androecium as found in the Papaveraceae s.str. and the polycarpellate gynoecium as found in Papaveraceae s. str. subfam. Papaveroideae incl. Platystemonoideae are secondary and derived from whorled oligomerous androecia and bicarpellate gynoecia, respectively. The comparative consideration of the geographical distribution, ecolog…
Molecular phylogeny of the Old World representatives of Papaveraceae subfamily Papaveroideae with special emphasis on the genus Meconopsis
The RFLP-analysis of PCR amplified cpDNA fragments of 42 representatives of Papaveraceae subfam. Papaveroideae resulted in six most parsimonious cladograms. The subfamily can be divided into a New World group (Arctomecon, Argentone, Canbya, Romneya and Platystemon) and an Old World group (Meconopsis, Papaver s.l. and Roemeria) containing Stylomecon heterophylla and Papaver californicum as New World taxa. In the Old World group neither Meconopsis nor Papaver are monophyletic. Whereas Meconopsis consists of three clades, Papaver comprises five clades, with Roemeria as sister group to P. sect. Argemonidium and Stylomecon as sister group to P. californicum. Various lines of evidence suggest tha…
The phylogeny ofPapaver s. l. (Papaveraceae): Polyphyly or monophyly?
An RFLP analysis of the chloroplast genetrnK of 32 species of the generaPapaver, Roemeria, Stylomecon, andMeconopsis leads to the following conclusions: (1) AsianMeconopsis consists of two distinct clades and is paraphyletic in relation toPapaver, Roemeria, Stylomecon, and the W EuropeanMeconopsis cambrica. (2) Sister group relationships ofRoemeria toPapaver sect.Argemonidium and ofStylomecon toPapaver californicum are well-supported. (3)Meconopsis cambrica is nested withinPapaver (incl.Roemeria andStylomecon). The consideration of morphology, geographical distribution and ecology leads to the conclusion thatM. cambrica is best regarded as a member ofMeconopsis, and thatPapaver arose polyph…