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

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dc.contributor.author Swartz, E.R. (Ernst Roelof)
dc.contributor.author Skelton, Paul H. (Paul Harvey)
dc.contributor.author Bloomer, Paulette
dc.date.accessioned 2009-04-30T05:31:05Z
dc.date.available 2009-04-30T05:31:05Z
dc.date.issued 2009
dc.description.abstract Relationships 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.citation Swartz, 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.2008.10.017 en_US
dc.identifier.issn 1095-9513
dc.identifier.other 10.1016/j.ymepv.2008.01.017
dc.identifier.uri http://hdl.handle.net/2263/9803
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.rights Elsevier en_US
dc.subject Biogeography en_US
dc.subject Phylogenetics en_US
dc.subject Drainage evolution en_US
dc.subject Pseudobarbus en_US
dc.subject Cyprinidae en_US
dc.subject South Africa en_US
dc.subject Lesotho en_US
dc.subject Cape Floristic Region en_US
dc.title Phylogeny and biogeography of the genus Pseudobarbus (Cyprinidae) : shedding light on the drainage history of rivers associated with the Cape Floristic Region en_US
dc.type Postprint Article en_US


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