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Evidence for a vicariant origin of Macaronesian–Eritreo/Arabian disjunctions in Campylanthus Roth (Plantaginaceae)
Botany Department, Staatliches Museum für Naturkunde, Rosenstein 1, D-70191 Stuttgart, Germany.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Systematic Biology. (Systematisk botanik)
Uppsala University, Museums etc., Museum of Evolution. (Botanik)
Institut für Botanik, Universität für Bodenkultur, Gregor Mendel-Str. 33, A-1180 Vienna, Austria.
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2010 (English)In: Molecular Phylogenetics and Evolution, ISSN 1055-7903, E-ISSN 1095-9513, Vol. 54, no 2, 607-616 p.Article, review/survey (Refereed) Published
Abstract [en]

The numerous disjunct plant distributions between Macaronesia and eastern Africa–Arabia suggest that these could be the relicts of a once continuous vegetation belt along the southern Tethys, which has been fragmented by Upper Miocene–Pliocene aridification. We tested this vicariance hypothesis with a phylogenetic analysis of Campylanthus (Plantaginaceae), based on nuclear and plastid DNA sequence data. Our results indicate a basal split within Campylanthus giving rise to Macaronesian and Eritreo–Arabian lineages in the Pliocene/Upper Miocene. This is consistent with the vicariance hypothesis, thus obviating the need to postulate trans-Saharan long-distance dispersal. The biogeography of Campylanthus may parallel patterns in other plant groups and the implications for our understanding of the biogeography of northern and eastern Africa, and Arabia are discussed.

Place, publisher, year, edition, pages
2010. Vol. 54, no 2, 607-616 p.
Keyword [en]
Campylanthus, Plantaginaceae, Biogeography, Phylogeny, Vicariance, Trans-Saharan disjunction, Macaronesia
National Category
Biological Systematics
Research subject
Systematic Botany
URN: urn:nbn:se:uu:diva-112814DOI: 10.1016/j.ympev.2009.10.009ISI: 000273758200027OAI: oai:DiVA.org:uu-112814DiVA: diva2:288156
Available from: 2010-01-20 Created: 2010-01-20 Last updated: 2011-01-04Bibliographically approved

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