Data from: The Rift Valley is a major barrier to dispersal of African clawed frogs (Xenopus) in Ethiopia

  • Ben J Evans (Contributor)
  • Shireen M Maarschalk (Contributor)
  • Simone A. Mendel (Contributor)
  • Richard C Tinsley (Contributor)



The Ethiopian highlands – home to striking species diversity and endemism – are bisected by the Rift Valley, a zone of tectonic divergence. Using molecular data we examined the evolutionary history of two co-distributed species of African clawed frog (Xenopus clivii and X. largeni) that are endemic to this region. Our field collections substantially extend the known distribution of X. largeni, a species formerly known from highlands southeast of the Rift, but that also occurs to the northwest. In both species, analysis of mitochondrial DNA and 19 autosomal loci identifies significant population structure, suggests little or no recent migration across the Rift Valley, and provides divergence time estimates across the Rift of ∼1–3.5 million years. These results indicate that the Ethiopian Rift Valley is a major obstacle to dispersal of highland-adapted amphibians.,Dryad_infoExplanation of filesIM_clivii_small"Small" IMa2 input file for X. clivii with non-neutral loci removedIM_cliviiIMa2 input file for X. cliviiIM_largeniIMa2 input file for X. largeniclivii_inMIMAR input file for X. cliviilargeni_INMIMAR input file for X. largenixen12s16s_MrBayesMitochondrial DNA sequence alignment for MrBayescliv_struct_reduceStructurama input file for X. clivii with some individuals with lots of missing data removed.cliv_struct.inStructurama input file for X. cliviilarg_struct.inStructurama input file for X. largenicliv_struct_reduceStructure input file for X. clivii with some individuals with lots of missing data removedcliv_structStructure input file for X. cliviilarg_structStructure input file for X. largeni,
Date made available1 Jan 2011

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