Genome-wide ancestry of 17th-century enslaved Africans from the Caribbean

Proc Natl Acad Sci U S A. 2015 Mar 24;112(12):3669-73. doi: 10.1073/pnas.1421784112. Epub 2015 Mar 9.

Abstract

Between 1500 and 1850, more than 12 million enslaved Africans were transported to the New World. The vast majority were shipped from West and West-Central Africa, but their precise origins are largely unknown. We used genome-wide ancient DNA analyses to investigate the genetic origins of three enslaved Africans whose remains were recovered on the Caribbean island of Saint Martin. We trace their origins to distinct subcontinental source populations within Africa, including Bantu-speaking groups from northern Cameroon and non-Bantu speakers living in present-day Nigeria and Ghana. To our knowledge, these findings provide the first direct evidence for the ethnic origins of enslaved Africans, at a time for which historical records are scarce, and demonstrate that genomic data provide another type of record that can shed new light on long-standing historical questions.

Keywords: ancient DNA; genomics; slave trade.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Africa / ethnology
  • Algorithms
  • Archaeology
  • Bayes Theorem
  • Black People / genetics
  • Caribbean Region / ethnology
  • Chromosomes, Human, Y / genetics
  • Cluster Analysis
  • DNA, Mitochondrial / genetics
  • Enslaved Persons*
  • Enslavement
  • Ethnicity / genetics
  • Genetic Markers
  • Genetics, Population*
  • Genome, Human
  • Genome-Wide Association Study*
  • Haplotypes
  • Humans
  • Likelihood Functions
  • Principal Component Analysis
  • Probability
  • Sequence Analysis, DNA

Substances

  • DNA, Mitochondrial
  • Genetic Markers