Bioregion heterogeneity correlates with extensive mitochondrial DNA diversity in the Namaqua rock mouse, <Emphasis Type="Italic">Micaelamys namaquensis</Emphasis>(Rodentia: Muridae) from southern Africa - evidence for a species complex |
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| Authors: | Isa-Rita M Russo Christian T Chimimba Paulette Bloomer |
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| Institution: | 1.Molecular Ecology & Evolution Programme (MEEP), Department of Genetics,University of Pretoria,Pretoria,South Africa;2.Mammal Research Institute (MRI), Department of Zoology & Entomology,University of Pretoria,Pretoria,South Africa;3.DST-NRF Centre of Excellence for Invasion Biology (CIB), Department of Zoology & Entomology,University of Pretoria,Pretoria,South Africa;4.Cardiff School of Biosciences, Biomedical Sciences Building,Cardiff University,Cardiff,UK |
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| Abstract: | Background Intraspecific variation within the diverse southern African murine rodents has not been extensively investigated, yet cryptic
diversity is evident in several taxa studied to date. The Namaqua rock mouse, Micaelamys namaquensis Smith, 1834 is a widespread endemic murine rodent from the subregion. Currently, a single species with four subspecies is
recognised, but in the past up to 16 subspecies were described. Thus, this species is a good candidate for the investigation
of patterns and processes of diversification in a diverse but under-studied mammalian subfamily and geographic region. Here,
we report genetic differentiation based on mitochondrial DNA (mtDNA) cytochrome b (cyt b) sequences among samples collected over an extensive coverage of the species' range. |
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