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Evolutionary history of the African buffalo (Syncerus caffer) at continental scale based on mitochondrial and nuclear molecular markers

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dc.contributor.authorSmitz, Nathalie, author
dc.contributor.authorHeller, Rasmus, author
dc.contributor.authorVan Hooft, Pim, author
dc.contributor.authorCornélis, Daniel, author
dc.contributor.authorChardonnet, Philippe, author
dc.contributor.authorCaron, Alexandre, author
dc.contributor.authorde Garine-Wichatitsky, Michel, author
dc.contributor.authorMichaux, Johan, author
dc.contributor.authorInternational Wildlife Ranching Symposium, publisher
dc.coverage.spatialAfrica, Southern
dc.coverage.spatialAfrica
dc.date.accessioned2017-05-30T14:12:23Z
dc.date.available2017-05-30T14:12:23Z
dc.date.issued2016-09
dc.descriptionPresented at the 9th international wildlife ranching symposium: wildlife - the key to prosperity for rural communities, held on 12-16 September 2016 at Hotel Safari & the Safari Court, Windhoek, Namibia in conjuction with the IUCN 2nd African Buffalo Symposium.
dc.description.abstractThe African buffalo (Syncerus caffer) exhibits extreme morphological variability at the continental scale. Today, four subspecies are recognized based on morphological characteristics, with three subspecies distributed in the West-Central African region and the last one covering the Southern and the Eastern African regions. Based on the mtDNA D-Loop region and on more than 42,000 SNP genetic markers (Single-Nucleotide-Polymorphism), the present study aimed to investigate the evolutionary history of the species by inferring the pan-African spatial distribution of its genetic diversity. All analyses converged on the existence of two distinct lineages, corresponding to a group encompassing West and Central African populations and a group encompassing East and Southern African populations. The former is currently assigned to two to three subspecies (S. c. nanus, S. c. brachyceros, S. c. aequinoctialis) and the latter to a separate subspecies (S. c. caffer). 42% of the total amount of genetic diversity is explained by the between-lineage component, with one to seventeen female migrants per generation inferred as consistent with the isolation-with-migration model. The divergence time was estimated to have occurred during the late to middle Pleistocene, followed by a population expansion in both lineages, adapting morphologically to colonize new habitats, hence developing the variety of ecophenotypes observed today. At the regional scale, 8 populations distributed within these two lineages could be identified, resulting from more recent fragmentation processes. The two main lineages is a structuration that reflects common evolutionary responses to environmental changes within savanna mammals and can be observed within almost all species with a large distribution pattern as for example the waterbuck (Kobus ellipsiprymnus), the hartebeest (Alcelaphus buselaphus), or the roan (Hippotragus equinus).
dc.format.mediumborn digital
dc.format.mediumPresentation slides
dc.identifier.urihttp://hdl.handle.net/10217/180925
dc.identifier.urihttp://dx.doi.org/10.25675/10217/180925
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartofIUCN 2nd Afircan Buffalo Symposium
dc.relation.ispartof9th International Wildlife Ranching Symposium
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.titleEvolutionary history of the African buffalo (Syncerus caffer) at continental scale based on mitochondrial and nuclear molecular markers
dc.typeText
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