Genetic perspectives on forager-farmer interaction in the Luangwa valley of Zambia

American Journal of Physical Anthropology
Cesare de FilippoBrigitte Pakendorf

Abstract

The transformation from a foraging way of life to a reliance on domesticated plants and animals often led to the expansion of agropastoralist populations at the expense of hunter-gatherers (HGs). In Africa, one of these expansions involved the Niger-Congo Bantu-speaking populations that started to spread southwards from Cameroon/Nigeria approximately 4,000 years ago, bringing agricultural technologies. Genetic studies have shown different degrees of gene flow (sometimes involving sex-biased migrations) between Bantu agriculturalists and HGs. Although these studies have covered many parts of sub-Saharan Africa, the central part (e.g. Zambia) was not yet studied, and the interactions between immigrating food-producers and local HGs are still unclear. Archeological evidence from the Luangwa Valley of Zambia suggests a long period of coexistence ( approximately 1,700 years) of early food-producers and HGs. To investigate if this apparent coexistence was accompanied by genetic admixture, we analyzed the mtDNA control region, Y chromosomal unique event polymorphisms, and 12 associated Y- short tandem repeats in two food-producing groups (Bisa and Kunda) that live today in the Luangwa Valley, and compared these data with available pub...Continue Reading

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Citations

Nov 27, 2010·Molecular Biology and Evolution·Cesare de FilippoBrigitte Pakendorf
May 11, 2010·Cold Spring Harbor Symposia on Quantitative Biology·C A Lambert, S A Tishkoff

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