Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
Genome-wide Ancestry and Demographic History of African-Descendant Maroon Communities from French Guiana and Suriname
American Journal of Human Genetics, Volume 101, No. 5, Year 2017
Notification
URL copied to clipboard!
Description
The transatlantic slave trade was the largest forced migration in world history. However, the origins of the enslaved Africans and their admixture dynamics remain unclear. To investigate the demographic history of African-descendant Marron populations, we generated genome-wide data (4.3 million markers) from 107 individuals from three African-descendant populations in South America, as well as 124 individuals from six west African populations. Throughout the Americas, thousands of enslaved Africans managed to escape captivity and establish lasting communities, such as the Noir Marron. We find that this population has the highest proportion of African ancestry (∼98%) of any African-descendant population analyzed to date, presumably because of centuries of genetic isolation. By contrast, African-descendant populations in Brazil and Colombia harbor substantially more European and Native American ancestry as a result of their complex admixture histories. Using ancestry tract-length analysis, we detect different dates for the European admixture events in the African-Colombian (1749 CE; confidence interval [CI]: 1737–1764) and African-Brazilian (1796 CE; CI: 1789–1804) populations in our dataset, consistent with the historically attested earlier influx of Africans into Colombia. Furthermore, we find evidence for sex-specific admixture patterns, resulting from predominantly European paternal gene flow. Finally, we detect strong genetic links between the African-descendant populations and specific source populations in Africa on the basis of haplotype sharing patterns. Although the Noir Marron and African-Colombians show stronger affinities with African populations from the Bight of Benin and the Gold Coast, the African-Brazilian population from Rio de Janeiro has greater genetic affinity with Bantu-speaking populations from the Bight of Biafra and west central Africa. © 2017 American Society of Human Genetics
Available Materials
https://efashare.b-cdn.net/share/pmc/articles/PMC5673667/bin/mmc1.pdf
https://efashare.b-cdn.net/share/pmc/articles/PMC5673667/bin/mmc2.xlsx
https://efashare.b-cdn.net/share/pmc/articles/PMC5673667/bin/mmc3.pdf
Authors & Co-Authors
Fortes-Lima, Cesar A.
France, Toulouse
Université Toulouse Iii - Paul Sabatier
France, Paris
Museé de L'homme
Gessain, Antoine
France, Paris
Cnrs Centre National de la Recherche Scientifique
Ruiz-Linarès, Andrés D.Sign©s
United Kingdom, London
University College London
China, Beijing
Ministry of Education of the People's Republic of China
France, Paris
Cnrs Centre National de la Recherche Scientifique
Migot-Nabias, Florence
France, Paris
Mère et Enfant en Milieu Tropical : Pathogènes, Système de Santé et Transition Epidémiologique
Bellis, Gil
France, Paris
French Institute for Demographic Studies
Víctor Moreno-Mayar, J. Víctor
Denmark, Copenhagen
Københavns Universitet
Avendaño-Tamayo, Efrén
Colombia, Medellin
Universidad de Antioquia
Bedoya, Gabriel De Jesús
Colombia, Medellin
Universidad de Antioquia
Orlando, Ludovic A.A.
France, Toulouse
Université Toulouse Iii - Paul Sabatier
Denmark, Copenhagen
Københavns Universitet
Salas, Antonio
Spain, Santiago de Compostela
Universidad de Santiago de Compostela
Spain, Santiago de Compostela
Hospital Clínico Universitario de Santiago
Helgason, Agnar S.
Iceland, Reykjavik
Decode Genetics
Gilbert, Marcus Thomas Pius
Denmark, Copenhagen
Københavns Universitet
Norway, Trondheim
Norges Teknisk-naturvitenskapelige Universitet
Sikora, Martin
Denmark, Copenhagen
Københavns Universitet
Schroeder, Hannes
Denmark, Copenhagen
Københavns Universitet
Netherlands, Leiden
Universiteit Leiden
Dugoujon, Jean Michel H.
France, Toulouse
Université Toulouse Iii - Paul Sabatier
Statistics
Citations: 34
Authors: 15
Affiliations: 16
Identifiers
Doi:
10.1016/j.ajhg.2017.09.021
ISSN:
00029297
Research Areas
Genetics And Genomics
Study Design
Cross Sectional Study
Study Locations
Benin