A molecular phylogenetic study of the African Mutisieae s.l. (Asteraceae) was performed using the chloroplast markers ndhF and trnL-F. The sequences of 46 species, including three representatives of Cynareae (Cardueae), were analysed applying maximum parsimony and Bayesian
inference, with Mutisia and Hecastocleis as outgroups. Four main clades corresponding to the tribes Cynareae, Dicomeae, Tarchonantheae and Oldenburgieae were identified, although relationships among them were unresolved. Dicomeae split into two main clades, which on the basis
of these results and a previous morphological-anatomical phylogenetic analysis are proposed as two new subtribes: Dicominae and Pleiotaxinae. Within Dicominae, Dicoma welwitschii is located outside the Dicoma clade, in a clade that includes the Pasaccardoa species. Given
the singular morphology of D. welwitschii, the new genus Dicomopsis has been proposed. A more detailed study with additional markers will be necessary to decide whether Pasaccardoa baumii should be included in Dicomopsis or described as a monotypic genus. The topology
of the Tarchonantheae clade does not contribute to elucidating the relationships between Tarchonanthus and Brachylaena. The four species of Oldenburgia form a well-supported monophyletic group (Oldenburgieae), despite their heterogeneous morphology.
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Document Type: Research Article
Laboratorio de Botánica, Facultade de Farmacia, Universidade de Santiago, 15782 Santiago de Compostela, Galicia, Spain;, Email: email@example.com
Laboratorio de Botánica, Facultade de Farmacia, Universidade de Santiago, 15782 Santiago de Compostela, Galicia, Spain
Publication date: 2013-06-17
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