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Systematic position of the genera Serratula and Klasea within Centaureinae (Cardueae, Asteraceae) inferred from ETS and ITS sequence data and new combinations in Klasea

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The systematic positions of the genera Serratula and Klasea were investigated on the basis of nuclear ribosomal DNA internal and external transcribed spacer sequences. Klasea comprises the major part of the species traditionally placed in Serratula. Serratula is part of a clade containing the more derived genera of Centaureinae, whereas Klasea is a basal segregate within the subtribe, possibly sister to the Rhaponticum group. Nikitinia, a monotypic genus whose affinities were supposed by some authors in Carduinae, by others in Centaureinae, clearly belongs to Klasea and is sunk into synonymy of the latter. A total of six new combinations are made in Klasea.
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Keywords: ASTERACEAE; CARDUEAE; ETS; ITS; KLASEA; NIKITINIA; PHYLOGENY; SERRATULA; TAXONOMY

Document Type: Research Article

Affiliations: Friedrich-Schiller-Universität Jena, Institut für Spezielle Botanik, Philosophenweg 16, D-07743 Jena, Germany

Publication date: 2005-08-01

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