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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Mitochondrial DNA analysis reveals Plio-Pleistocene diversification within the chacma baboon
Molecular Phylogenetics and Evolution, Volume 53, No. 3, Year 2009
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Description
Modern baboons evolved as a distinct lineage prior to 2.5 Mya. Previous scenarios of diversification within this lineage have assessed the phylogenetic position of the chacma baboon of southern Africa relative to other baboons, but have not examined variation within this taxon. Here we provide a phylogenetic analysis of lineage diversity across the range of the chacma baboon, and show that: (1) chacma baboons diverged as a separate lineage at ~1.84 Mya; (2) the chacma lineage is characterised by a deep lineage split dividing chacmas into northeastern (1.52 Mya) and southwestern (1.22 Mya) clades; (3) ruacana baboons of Namibia form their own distinct monophyletic group within the southwestern clade, emerging ~0.68 Mya. These patterns likely result from a complex interplay of genetic drift and gene flow as the chacma lineage diversified across a broad geographic landscape during the climatically variable Plio-Pleistocene. © 2009 Elsevier Inc. All rights reserved.
Authors & Co-Authors
Sithaldeen, Riashna
South Africa, Cape Town
University of Cape Town
Bishop, Jacqueline M.
South Africa, Cape Town
University of Cape Town
Ackermann, Rebecca Rogers
South Africa, Cape Town
University of Cape Town
Statistics
Citations: 34
Authors: 3
Affiliations: 1
Identifiers
Doi:
10.1016/j.ympev.2009.07.038
ISSN:
10557903
e-ISSN:
10959513
Research Areas
Genetics And Genomics
Study Locations
Namibia