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Plant Systematics and Evolution

, Volume 240, Issue 1–4, pp 133–147 | Cite as

Phylogeny of the Juncaceae based on rbcL sequences, with special emphasis on Luzula DC. and Juncus L.

  • L. Drábková
  • J. Kirschner
  • O. Seberg
  • G. Petersen
  • Č. Vlček
Article

Abstract.

Cladistic analysis of rbcL nucleotide sequences was applied to 58 taxa representing most subgenera and sections of Luzula and Juncus, chosen to reflect morphological and geographical diversity of both genera. Additionally, representatives of all other genera of the Juncaceae and two taxa from the Cyperaceae were included. Phylogenetic trees were constructed using parsimony with Prionium serratum as outgroup. The dataset has 190 parsimony informative sites. The analysis yielded more than 332,400 equally parsimonious trees (length 620, CI=0.47, RI=0.82). A jackknife analysis revealed several well-supported clades. Luzula is monophyletic and Juncus is non-monophyletic. Each of the generally accepted subgenera of Juncus, subg. Juncus and subg. Agathryon, form a clade, but their circumscription differs from the traditional views. The subgenera recognized in Luzula remain mainly unresolved. A well-supported clade is represented by an assemblage of representatives of five genera and species distributed in the Southern Hemisphere: Juncus capensis and J. lomatophyllus (both from section Graminifolii), Rostkovia, Distichia, Marsippospermum, and Patosia.

Keywords

Monocotyledons Liliopsida Juncac-eae Luzula Juncus phylogeny sequencing rbc

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Copyright information

© Springer-Verlag Wien 2003

Authors and Affiliations

  • L. Drábková
    • 1
  • J. Kirschner
    • 1
  • O. Seberg
    • 2
  • G. Petersen
    • 2
  • Č. Vlček
    • 3
  1. 1.Institute of Botany Academy of SciencesPrůhoniceCzech Republic
  2. 2.Botanical InstituteUniversity of CopenhagenCopenhagen KDenmark
  3. 3.Center for Integrated Genomics and Institute of Molecular GeneticsAcademy of SciencesPrague 6Czech Republic

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