CiteULike CiteULike
Delicious Delicious
Connotea Connotea

Citation for Study 242

About Citation title: "Phylogenetic analysis of rbcL sequences identifies Acorus calamus as the primal extant monocotyledon.".
About This study was previously identified under the legacy study ID S2x7x96c15c42c12 (Status: Published).

Citation

Duvall M.R., Learn G., Eguiarte L.E., & Clegg M. 1993. Phylogenetic analysis of rbcL sequences identifies Acorus calamus as the primal extant monocotyledon. Proceedings of the National Academy of Sciences of the United States of America, 90: 4641-4644.

Authors

  • Duvall M.R.
  • Learn G.
  • Eguiarte L.E.
  • Clegg M.

Abstract

The identity of the oldest lineage of monocotyledons is a subject of debate. Alternative interpretations of morphological homologies are variously consistent with proposals that species of Alismatanae, Dioscoreales, or Melanthiales were the earliest descendants of the first monocotyledons. We present phylogenetic analyses based on DNA sequences of the plastid locus rbcL in which Acurs calamus, an herb with unspecialized floral features and of uncertain affinities, is supported as a member of the oldest extant lineage of monocotyledons. This conclusion is consistent with a substantial body of morphological, anatomical, and embyrological evidence and offers an explanation for the failure to identify any close relationship between Acorus and other genera.

About this resource

  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S242
  • Other versions: Download Reconstructed NEXUS File Nexus Download NeXML File NeXML
  • Show BibTeX reference
  • Show RIS reference