Phylogeography of a morphologically cryptic golden mole assemblage from South-Eastern Africa

 

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dc.contributor.author Mynhardt, Samantha en_ZA
dc.contributor.author Maree, Sarita en_ZA
dc.contributor.author Pelser, Illona en_ZA
dc.contributor.author Bennett, Nigel C en_ZA
dc.contributor.author Bronner, Gary N en_ZA
dc.contributor.author Wilson, John W en_ZA
dc.contributor.author Bloomer, Paulette en_ZA
dc.date.accessioned 2016-02-10T14:47:52Z
dc.date.available 2016-02-10T14:47:52Z
dc.date.issued 2015 en_ZA
dc.identifier.citation Mynhardt, S., Maree, S., Pelser, I., Bennett, N. C., Bronner, G. N., Wilson, J. W., & Bloomer, P. (2015). Phylogeography of a morphologically cryptic golden mole assemblage from South-Eastern Africa. PloS one, 10(12), e0144995. doi:10.1371/journal.pone.0144995 en_ZA
dc.identifier.uri http://dx.doi.org/10.1371/journal.pone.0144995 en_ZA
dc.identifier.uri http://hdl.handle.net/11427/16955
dc.description.abstract The Greater Maputaland-Pondoland-Albany (GMPA) region of southern Africa was recently designated as a centre of vertebrate endemism. The phylogeography of the vertebrate taxa occupying this region may provide insights into the evolution of faunal endemism in south-eastern Africa. Here we investigate the phylogeographic patterns of an understudied small mammal species assemblage ( Amblysomus ) endemic to the GMPA, to test for cryptic diversity within the genus, and to better understand diversification across the region. We sampled specimens from 50 sites across the distributional range of Amblysomus , with emphasis on the widespread A . hottentotus , to analyse geographic patterns of genetic diversity using mitochondrial DNA (mtDNA) and nuclear intron data. Molecular dating was used to elucidate the evolutionary and phylogeographic history of Amblysomus . Our phylogenetic reconstructions show that A . hottentotus comprises several distinct lineages, or evolutionarily significant units (ESUs), some with restricted geographic ranges and thus worthy of conservation attention. Divergence of the major lineages dated to the early Pliocene, with later radiations in the GMPA during the late-Pliocene to early-Pleistocene. Evolutionary diversification within Amblysomus may have been driven by uplift of the Great Escarpment c. 5-3 million years ago (Ma), habitat changes associated with intensification of the east-west rainfall gradient across South Africa and the influence of subsequent global climatic cycles. These drivers possibly facilitated geographic spread of ancestral lineages, local adaptation and vicariant isolation. Our study adds to growing empirical evidence identifying East and southern Africa as cradles of vertebrate diversity. en_ZA
dc.language.iso eng en_ZA
dc.publisher Public Library of Science en_ZA
dc.rights This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. en_ZA
dc.rights.uri http://creativecommons.org/licenses/by/4.0 en_ZA
dc.source PLoS One en_ZA
dc.source.uri http://journals.plos.org/plosone en_ZA
dc.subject.other Phylogeography en_ZA
dc.subject.other Habitats en_ZA
dc.subject.other Phylogenetic analysis en_ZA
dc.subject.other Cryptic speciation en_ZA
dc.subject.other Paleoclimatology en_ZA
dc.subject.other Pliocene epoch en_ZA
dc.subject.other Conservation genetics en_ZA
dc.subject.other Grasslands en_ZA
dc.title Phylogeography of a morphologically cryptic golden mole assemblage from South-Eastern Africa en_ZA
dc.type Journal Article en_ZA
dc.rights.holder © 2015 Mynhardt et al en_ZA
uct.type.publication Research en_ZA
uct.type.resource Article en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Science en_ZA
dc.publisher.department Department of Biological Sciences en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Mynhardt, S., Maree, S., Pelser, I., Bennett, N. C., Bronner, G. N., Wilson, J. W., & Bloomer, P. (2015). Phylogeography of a morphologically cryptic golden mole assemblage from South-Eastern Africa. <i>PLoS One</i>, http://hdl.handle.net/11427/16955 en_ZA
dc.identifier.chicagocitation Mynhardt, Samantha, Sarita Maree, Illona Pelser, Nigel C Bennett, Gary N Bronner, John W Wilson, and Paulette Bloomer "Phylogeography of a morphologically cryptic golden mole assemblage from South-Eastern Africa." <i>PLoS One</i> (2015) http://hdl.handle.net/11427/16955 en_ZA
dc.identifier.vancouvercitation Mynhardt S, Maree S, Pelser I, Bennett NC, Bronner GN, Wilson JW, et al. Phylogeography of a morphologically cryptic golden mole assemblage from South-Eastern Africa. PLoS One. 2015; http://hdl.handle.net/11427/16955. en_ZA
dc.identifier.ris TY - Journal Article AU - Mynhardt, Samantha AU - Maree, Sarita AU - Pelser, Illona AU - Bennett, Nigel C AU - Bronner, Gary N AU - Wilson, John W AU - Bloomer, Paulette AB - The Greater Maputaland-Pondoland-Albany (GMPA) region of southern Africa was recently designated as a centre of vertebrate endemism. The phylogeography of the vertebrate taxa occupying this region may provide insights into the evolution of faunal endemism in south-eastern Africa. Here we investigate the phylogeographic patterns of an understudied small mammal species assemblage ( Amblysomus ) endemic to the GMPA, to test for cryptic diversity within the genus, and to better understand diversification across the region. We sampled specimens from 50 sites across the distributional range of Amblysomus , with emphasis on the widespread A . hottentotus , to analyse geographic patterns of genetic diversity using mitochondrial DNA (mtDNA) and nuclear intron data. Molecular dating was used to elucidate the evolutionary and phylogeographic history of Amblysomus . Our phylogenetic reconstructions show that A . hottentotus comprises several distinct lineages, or evolutionarily significant units (ESUs), some with restricted geographic ranges and thus worthy of conservation attention. Divergence of the major lineages dated to the early Pliocene, with later radiations in the GMPA during the late-Pliocene to early-Pleistocene. Evolutionary diversification within Amblysomus may have been driven by uplift of the Great Escarpment c. 5-3 million years ago (Ma), habitat changes associated with intensification of the east-west rainfall gradient across South Africa and the influence of subsequent global climatic cycles. These drivers possibly facilitated geographic spread of ancestral lineages, local adaptation and vicariant isolation. Our study adds to growing empirical evidence identifying East and southern Africa as cradles of vertebrate diversity. DA - 2015 DB - OpenUCT DO - 10.1371/journal.pone.0144995 DP - University of Cape Town J1 - PLoS One LK - https://open.uct.ac.za PB - University of Cape Town PY - 2015 T1 - Phylogeography of a morphologically cryptic golden mole assemblage from South-Eastern Africa TI - Phylogeography of a morphologically cryptic golden mole assemblage from South-Eastern Africa UR - http://hdl.handle.net/11427/16955 ER - en_ZA


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This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Except where otherwise noted, this item's license is described as This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.