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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Mitochondrial evidence for the origin of hamadryas baboons
Molecular Phylogenetics and Evolution, Volume 32, No. 1, Year 2004
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Description
Baboons (Mammalia: Primates, Papio) are found primarily on the continent of Africa, but the range of hamadryas baboons (Papio hamadryas) extends to the Arabian Peninsula, and the origin of Arabian populations is unclear. To estimate the timing of the divergence between Arabian and African hamadryas populations we analyzed mitochondrial DNA (mtDNA) sequences from individuals of Arabian and African origin, and from representatives of the other major baboon taxa. The oldest hamadryas mitochondrial lineages in the Arabian Peninsula form an ancient trichotomy with the two major African lineages. This suggests that Arabia was colonized by hamadryas very soon after the appearance of the distinctive hamadryas phenotype, both events perhaps coinciding with a mid-Pleistocene stage of dry climate and low sea-level. The most closely related Arabian and African mtDNA haplotypes coalesce at approximately 35ka, suggesting that no gene flow between African and Arabian baboons has occurred since the end of the last ice age, when a land bridge at the southern sill of the Red Sea was submerged. The mitochondrial paraphyly of Ethiopian hamadryas and anubis (P. anubis) baboons suggests an extensive and complex history of sex-specific introgression. © 2004 Elsevier Inc. All rights reserved.
Authors & Co-Authors
Wildman, Derek E.
United States, New York
New York University
United States, Detroit
Wayne State University School of Medicine
Bergman, Thore Jon
United States, St. Louis
Washington University in St. Louis
Al-Aghbari, Abdulwali
United States, Corvallis
Oregon State University
Yemen, Sana'a
Sana'a University
Sterner, Kirstin N.
United States, New York
New York University
Newman, Timothy K.
United States, Bethesda
National Institute on Alcohol Abuse and Alcoholism Niaaa
Phillips-Conroy, Jane Elizabeth
United States, St. Louis
Washington University School of Medicine in St. Louis
Jolly, Clifford J.
United States, New York
New York University
Disotell, Todd R.
United States, New York
New York University
Statistics
Citations: 72
Authors: 8
Affiliations: 7
Identifiers
Doi:
10.1016/j.ympev.2003.12.014
ISSN:
10557903
Research Areas
Genetics And Genomics