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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
Author(s) -
Martins Ludwig,
Hellwig Frank H.
Publication year - 2005
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.2307/25065420
Subject(s) - internal transcribed spacer , biology , asteraceae , clade , genus , botany , evolutionary biology , sister group , zoology , phylogenetics , ribosomal rna , genetics , gene
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 .