Biosystematic, molecular and phytochemical evidence for the multiple origin of sympetaly in Eurasian Sedoideae (Crassulaceae)

  • 'T Hart H
  • Van Ham R
  • Stevens J
 et al. 
  • 3


    Mendeley users who have this article in their library.
  • 4


    Citations of this article.


Traditionally the sympetalous, Eurasian Crassulaceae are classified in four genera, but combined biosystematic, molecular and chemotaxonomic studies indicate that sympetaly evolved at least eight times independently in European Crassulaceae. Morphologically Umbilicus is very distinct and at the molecular level it also represents a distinct evolutionary lineage. The other three sympetalous genera evolved from the large paraphyletic genus Sedum. Of these three taxa Pistorinia represents a monophyletic lineage, whereas Mucizonia and Rosularia, are polyphyletic. The results of the hybridization experiments and molecular analyses justify the transfer of the Mucizonia species to the polypetalous Sedum series Dasyphylla and S. series Pedicellata, respectively. Cytological, phytochemical and molecular evidence indicate that Rosularia sect. Rosularia and R. sect. Chrysantha represent independent evolutionary lineages. Moreover, cpDNA restriction site analysis indicates a close relationship between R. sect. Chrysantha and the comparium comprising Prometheum pilosum, P. sempervivoides and P. tymphaeum which were formerly included in Sedum. Consequently R. sect. Chrysantha was transferred to Prometheum. Phytochemically, however, this genus is rather diverse. In addition to these six taxa, sympetaly evolved independently in Sedum lagascae, which is closely related to polypetalous S. villosum, and in S. series Alsinefolia, which in our molecular analyses appears to be related to polypetalous S. hispanicum.

Author-supplied keywords

  • Chloroplast DNA restriction site analysis
  • Chromosome numbers
  • Crassulaceae
  • Flavonols
  • Gallic acid
  • Hybridization
  • Mucizonia
  • Prometheum
  • Rosularia
  • Sedum
  • Triterpenes

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Henk 'T Hart

  • Roeland D.H.J. Van Ham

  • Jan F. Stevens

  • Elizabeth T. Elema

  • Herman Van Der Klis

  • Theo W.J. Gadella

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free