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Plant Biol (Stuttg) 2004; 6(6): 673-682
DOI: 10.1055/s-2004-830330
Original Paper

Georg Thieme Verlag Stuttgart KG · New York

Phylogeny of Veronica - a Combination of Molecular and Chemical Evidence

R. M. Taskova1 , D. C. Albach2 , R. J. Grayer3
  • 1Institute of Botany, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
  • 2Botanisches Institut der Universität Wien, Rennweg 14, 1030 Wien, Austria
  • 3Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AB, UK
Weitere Informationen

Publikationsverlauf

Received: November 16, 2003

Accepted: August 23, 2004

Publikationsdatum:
26. Oktober 2004 (online)

   Lizenzen und Reprints

Abstract

A molecular phylogenetic tree of the genus Veronica, based on sequences of the ITS region of nuclear ribosomal DNA, provided a framework to test the use of iridoid chemical data in the classification of the genus. The distribution of ten iridoid glucosides, determined in 27 species of Veronica, supported the molecular results. The nine clades of the molecular tree appeared to correlate with a specific pattern of catalpol esters and chromosome base numbers. Some relationships within Veronica, previously suggested on the basis of morphological and karyological characters, were supported by our data. Neither the molecular, nor the chemical features were in favour of the classical circumscription and classification of the genus.

Key words

Veronica - chemosystematics - iridoids - molecular systematics - ITS - phylogeny.

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R. J. Grayer

Jodrell Laboratory
Royal Botanic Gardens, Kew

Richmond

Surrey, TW9 3AB

UK

eMail: r.grayer@rbgkew.org.uk

Editor: M. Koornneef