n African Zoology - New evidence of homoplasy within the African genus (Cyprinidae) : an independent origin of specialized scraping forms in the adjacent drainage systems of Ethiopia inferred from mtDNA analysis

Volume 48, Issue 2
  • ISSN : 1562-7020
  • E-ISSN: 2224-073X
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Interrelationships of the two specialized scraping periphyton-feeders, and , and some large African barbs, spp., inhabiting three main regions of Ethiopia (the Western and Eastern Plateaus, and the Rift Valley separating them) were investigated using the sequence analysis of a fragment (609 base pairs) of the mtDNA control region. The two scraping forms in question appeared to be phylogenetically distant: had branched off before the main radiation of the Ethiopian took place, whereas is a sister group of the complex sympatrically occurring with it in the south of the Eastern Plateau. For geographical reasons, among the congeneric species, could be considered as the most closely related to , the type species of the genus, but judging from the available data this genus seems to be monotypic, while should be classified as a member of .

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