African ancestry of the population of Buenos Aires

Bibliographic Data

ID8320207
AuthorsLaura Fejerman (0000-0003-3179-1151, University of Oxford, corresponding author), Francisco R Carnese (Universidad de Buenos Aires), Alicia S Goicoechea (Consejo Nacional de Investigaciones Científicas y Técnicas), Sergio A Avena, Avena (0000-0002-2221-876X, Consejo Nacional de Investigaciones Científicas y Técnicas), Cristina B Dejean (0000-0002-3642-1945, Universidad de Buenos Aires), Ryk Ward (University of Oxford), Ryk H Ward
Year2005
Volume128
Issue1
Pages164-170
Publication date2005-09-01
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueAmerican Journal of Physical Anthropology (JOURNAL)
Journal identifiersISSN: 0002-9483 • E-ISSN: 1096-8644
PublisherWiley (PUBLISHER • GB)
DOI10.1002/ajpa.20083
PMID15714513
OpenAlexW2040544199
LanguageEN
Citations received11
References cited12

The population of Argentina today does not have a “visible” black African component. However, censuses conducted during most of the 19th century registered up to 30% of individuals of African origin living in Buenos Aires city. What has happened to this African influence? Have all individuals of African origin died, as lay people believe? Or is it possible that admixture with the European immigrants made the African influence “invisible?” We investigated the African contribution to the genetic pool of the population of Buenos Aires, Argentina, typing 12 unlinked autosomal DNA markers in a sample of 90 individuals. The results of this analysis suggest that 2.2% (SEM = 0.9%) of the genetic ancestry of the Buenos Aires population is derived from Africa. Our analysis of individual admixture shows that those alleles that have a high frequency in populations of African origin tend to concentrate among 8 individuals in our sample. Therefore, although the admixture estimate is relatively low, the actual proportion of individuals with at least some African influence is approximately 10%. The evidence we are presenting of African ancestry is consistent with the known historical events that led to the drastic reduction of the Afro‐Argentine population during the second half of the 19th century. However, as our results suggest, this reduction did not mean a total disappearance of African genes from the genetic pool of the Buenos Aires population. Am J Phys Anthropol 128:164‐170, 2005. © 2005 Wiley‐Liss, Inc

African american · Allele · Allele frequency · Ancestry-informative marker · Archaeology · Biology · Black african · Ethnology · Gene · Gene pool · Genetic admixture · Genetic diversity · Genetic genealogy · Geography · Immigration · Population · Population genetics · Sample (material) · Sociology · Demography · Forensic and Genetic Research · Genetic diversity and population structure · Genetics · History · Race, Genetics, and Society

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