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Am J Hum Genet. 2005 Oct;77(4):676-80. Epub 2005 Aug 11.

Charting the ancestry of African Americans.

Author information

  • 1Unidade de Xenetica, Instituto de Medicina Legal, Facultad de Medicina, Universidad de Santiago de Compostela, Galicia, Spain. apimlase@usc.es

Abstract

The Atlantic slave trade promoted by West European empires (15th-19th centuries) forcibly moved at least 11 million people from Africa, including about one-third from west-central Africa, to European and American destinations. The mitochondrial DNA (mtDNA) genome has retained an imprint of this process, but previous analyses lacked west-central African data. Here, we make use of an African database of 4,860 mtDNAs, which include 948 mtDNA sequences from west-central Africa and a further 154 from the southwest, and compare these for the first time with a publicly available database of 1,148 African Americans from the United States that contains 1,053 mtDNAs of sub-Saharan ancestry. We show that >55% of the U.S. lineages have a West African ancestry, with <41% coming from west-central or southwestern Africa. These results are remarkably similar to the most up-to-date analyses of the historical record.

PMID:
16175514
[PubMed - indexed for MEDLINE]
PMCID:
PMC1275617
Free PMC Article

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