Dec 11, 2013

Unraveling the complex maternal history of Southern African Khoisan populations

American Journal of Physical Anthropology
Chiara BarbieriBrigitte Pakendorf

Abstract

The Khoisan populations of southern Africa are known to harbor some of the deepest-rooting lineages of human mtDNA; however, their relationships are as yet poorly understood. Here, we report the results of analyses of complete mtDNA genome sequences from nearly 700 individuals representing 26 populations of southern Africa who speak diverse Khoisan and Bantu languages. Our data reveal a multilayered history of the indigenous populations of southern Africa, who are likely to be the result of admixture of different genetic substrates, such as resident forager populations and pre-Bantu pastoralists from East Africa. We find high levels of genetic differentiation of the Khoisan populations, which can be explained by the effect of drift together with a partial uxorilocal/multilocal residence pattern. Furthermore, there is evidence of extensive contact, not only between geographically proximate groups, but also across wider areas. The results of this contact, which may have played a role in the diffusion of common cultural and linguistic features, are especially evident in the Khoisan populations of the central Kalahari.

  • References37
  • Citations17

Mentioned in this Paper

Genetic Drift
DNA, Mitochondrial
African Continental Ancestry Group
Genetics, Population
Evolution, Neutral
Mitochondrial DNA Location
SPAG5 gene
Online Mendelian Inheritance In Man
Anthropology, Physical
Disease Clustering

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