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1 April 2015 Deep Genetic Divergence Between Geographically Isolated Populations of the Goldie Barb (Barbus pallidus) in South Africa: Potential Taxonomic and Conservation Implications
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Abstract

Barbus pallidus as it is presently defined has a disjunct distribution that is divided between northern and southern populations in South Africa. Sequence data from the cytochrome b gene region showed two distinct lineages that correspond to these geographically distant areas. Divergence between these two lineages was relatively high (5.5–6.5%) and comparable to typical interspecific divergences found between closely related southern African cyprinid fishes. Based on this deep genetic divergence, we conclude that the northern lineage may represent a previously unrecognised species or may belong to a different, but known species or species complex not associated with ‘true’ B. pallidus. These findings add to a growing body of evidence that freshwater fish diversity in southern Africa requires major revision.

Copyright© Zoological Society of Southern Africa
Albert Chakona, Willem S Malherbe, Gavin Gouws, and Ernst R Swartz "Deep Genetic Divergence Between Geographically Isolated Populations of the Goldie Barb (Barbus pallidus) in South Africa: Potential Taxonomic and Conservation Implications," African Zoology 50(1), 5-10, (1 April 2015). https://doi.org/10.1080/15627020.2015.1021164
Received: 13 June 2014; Accepted: 1 September 2014; Published: 1 April 2015
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