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A phylogenetic study of Echidnopsis Hook. f. (Apocynaceae-Asclepiadoideae) : taxonomic implications and the colonization of the Socotran archipelago

Title data

Thiv, Mike ; Meve, Ulrich:
A phylogenetic study of Echidnopsis Hook. f. (Apocynaceae-Asclepiadoideae) : taxonomic implications and the colonization of the Socotran archipelago.
In: Plant Systematics and Evolution. Vol. 265 (2007) Issue 1-2 . - pp. 71-86.
ISSN 1615-6110
DOI: https://doi.org/10.1007/s00606-007-0516-3

Abstract in another language

We investigated the phylogeny, taxonomy and biogeography of the Eritreo-Arabian genus Echidnopsis Hook. f. (Apocynaceae-Asclepiadoideae). Phylogenetic reconstructions based on nrITS sequence data were obtained using maximum likelihood and parsimony analyses. The results reveal two weakly supported clades, each with a mix of African and Arabian taxa, including the genus Rhytidocaulon, and with four Socotran species forming a subclade of their own. Rather than a vicariance origin of these island elements, our data suggest a single dispersal event from eastern Africa. Echidnopsis thus parallels biogeographic patterns found for other Socotran endemic plants. Our revised taxonomy recognizes 28 species and 4 subspecies in the genus. Two new combinations, E. planiflora subsp. chrysantha and E. sharpei subsp. bavazzani are proposed.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER53511
Institutions of the University: Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Plant Systematics
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 14 Jul 2015 06:22
Last Modified: 14 Jul 2015 06:22
URI: https://eref.uni-bayreuth.de/id/eprint/16408