Himmelreich, S. and Källersjö, M. and Eldenäs, P. and Oberprieler, Christoph (2008) Phylogeny of southern hemisphere Compositae-Anthemideae based on nrDNA ITS and cpDNA ndhF sequence information. Plant Systematics and Evolution 272 (1-4), pp. 131-153.
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Twenty-nine genera of the tribe Anthemideae (Compositae) (111 genera, ca. 1,800 species) are either restricted to or have their distributional centre in the S hemisphere. We here present a phylogenetic study based on nrDNA ITS and cpDNA ndhF sequence variation for a complete generic sampling of this S hemisphere group of the tribe with its paramount importance for the understanding of the evolutionary history of this plant group. Our results corroborate the paraphyletic nature of the S hemisphere group of Anthemideae as a whole and of the four subtribes (Ursiniinae, Gonosperminae, Thaminophyllinae, Matricariinae) erected by Bremer and Humphries (1993) to accommodate its members. We further show that the genus Osmitopsis and the Cotula- group hold a basal position in the tribe. Members of the subtribe Ursiniinae (that is characterised by the possession of anthers with polarised endothecial tissue) form a paraphyletic group that may, together with a strongly supported monophyletic group around the genus Pentzia, contain the sister group(s) of the Asian and Mediterranean clades of the tribe. As a consequence of the non-monophyletic nature of the subtribes according to Bremer and Humphries (1993), we discuss an alternative generic grouping of the S hemisphere Anthemideae.
|Institutions:||Biology, Preclinical Medicine > Institut für Botanik / Zellbiologie > Group Plant Systematics and Evolution (Prof. Dr. Christoph Oberprieler)|
|Keywords:||Anthemideae - Asteraceae - cpDNA ndhF - molecular phylogeny - nrDNA ITS - S Africa|
|Subjects:||500 Science > 570 Life sciences|
|Created at the University of Regensburg:||Unknown|
|Owner:||Prof. Dr. Christoph Oberprieler|
|Deposited On:||04 Feb 2011 10:20|
|Last Modified:||04 Feb 2011 13:42|