Phylogeny and biogeography of the genus Pseudobarbus (Cyprinidae) : shedding light on the drainage history of rivers associated with the Cape Floristic Region

dc.contributor.authorSwartz, Ernst Roelof
dc.contributor.authorSkelton, Paul Harvey
dc.contributor.authorBloomer, Paulette
dc.date.accessioned2009-04-30T05:31:05Z
dc.date.available2009-04-30T05:31:05Z
dc.date.issued2009
dc.description.abstractRelationships among the historically isolated lineages of Pseudobarbus were reconstructed using molecular and morphological data. Contradictions between the molecular and morphological phylogenies suggest convergent evolution and homoplasy in some morphological characters. The earliest divergence in Pseudobarbus was between P. quathlambae in Lesotho and the rest of the genus associated with the Cape Foristic Region in South Africa. A close relationship between P. phlegethon from the Olifants River system on the west coast of South Africa and a lineage of P. afer from small river systems in Afrotemperate Forests on the south coast, can only be explained through previous occurrence and subsequent extinction of ancestral populations in the Gourits River system. Several river systems had confluences before reaching lower sea levels, most notably during the last glacial maximum about 18,000 years ago, explaining closely related populations across different river systems. Mainly river capture explains shared lineages across river systems that did not share a common confluence during lower sea levels.en_US
dc.identifier.citationSwartz, E.R. et al., Phylogeny and biogeography of the genus Pseudobarbus (Cyprinidae) : Shedding light on the drainage history of rivers associated with the Cape Floristic Region, Molecular Phylogenetics and Evolution (2008), doi:10.1016/j.ympev.2008.10.017en_US
dc.identifier.issn1095-9513
dc.identifier.other10.1016/j.ymepv.2008.01.017
dc.identifier.urihttp://hdl.handle.net/2263/9803
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.rightsElsevieren_US
dc.subjectBiogeographyen_US
dc.subjectPhylogeneticsen_US
dc.subjectDrainage evolutionen_US
dc.subjectPseudobarbusen_US
dc.subjectCyprinidaeen_US
dc.subjectSouth Africaen_US
dc.subjectLesothoen_US
dc.subjectCape Floristic Regionen_US
dc.titlePhylogeny and biogeography of the genus Pseudobarbus (Cyprinidae) : shedding light on the drainage history of rivers associated with the Cape Floristic Regionen_US
dc.typePostprint Articleen_US

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