Evidence map›Paper›PMID 37683613›Full record

ArticleAmerican journal of human genetics2023

The ancestry and geographical origins of St Helena's liberated Africans.

Marcela Sandoval-Velasco, Anuradha Jagadeesan, Jazmín Ramos-Madrigal, María C Ávila-Arcos, Cesar A Fortes-Lima, Judy Watson, Erna Johannesdóttir, Diana I Cruz-Dávalos, Shyam Gopalakrishnan, J Víctor Moreno-Mayar and 8 more

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in American journal of human genetics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
14.0field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

18 authors at 9 institutions in 8 countries.

Marcela Sandoval-VelascoGlobe Institute, Faculty of Health and Medical Sciences, University of Copenhagen, 1353 Copenhagen, Denmark; Department of Anthropology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, USA. Electronic address: sandoval-velascom@si.edu.
Anuradha JagadeesandeCODE Genetics/Amgen, 101 Reykjavik, Iceland; Department of Anthropology, University of Iceland, 101 Reykjavik, Iceland.
Jazmín Ramos-MadrigalGlobe Institute, Faculty of Health and Medical Sciences, University of Copenhagen, 1353 Copenhagen, Denmark.
María C Ávila-ArcosInternational Laboratory for Human Genome Research, National Autonomous University of Mexico, Juriquilla, 76230 Santiago de Querétaro, México.
Cesar A Fortes-LimaDepartment of Organismal Biology, Uppsala University, 752 36 Uppsala, Sweden.
Judy WatsonDepartment of Anthropology and Archaeology, University of Bristol, BS8 1UU Bristol, UK.
Erna JohannesdóttirDepartment of Anthropology and Archaeology, University of Bristol, BS8 1UU Bristol, UK.
Diana I Cruz-DávalosDepartment of Computational Biology, University of Lausanne, 1015 Lausanne, Switzerland; Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland.
Shyam GopalakrishnanGlobe Institute, Faculty of Health and Medical Sciences, University of Copenhagen, 1353 Copenhagen, Denmark.
J Víctor Moreno-MayarGlobe Institute, Faculty of Health and Medical Sciences, University of Copenhagen, 1353 Copenhagen, Denmark.
Jonas NiemannGlobe Institute, Faculty of Health and Medical Sciences, University of Copenhagen, 1353 Copenhagen, Denmark.
Gabriel RenaudDepartment of Health Technology Bioinformatics, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
Katharine A Robson BrownDepartment of Anthropology and Archaeology, University of Bristol, BS8 1UU Bristol, UK.
Helena BennettSt Helena National Trust, Broadway House, Mainstreet, Jamestown, St Helena.
Andrew PearsonEnvironmental Dimension Partnership, Atlantic Wharf, CF10 4HF Cardiff, UK.
Agnar HelgasondeCODE Genetics/Amgen, 101 Reykjavik, Iceland; Department of Anthropology, University of Iceland, 101 Reykjavik, Iceland.
M Thomas P GilbertGlobe Institute, Faculty of Health and Medical Sciences, University of Copenhagen, 1353 Copenhagen, Denmark; NTNU University Museum, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
Hannes SchroederGlobe Institute, Faculty of Health and Medical Sciences, University of Copenhagen, 1353 Copenhagen, Denmark. Electronic address: hschroeder@sund.ku.dk.
University of Copenhagen · DKUniversity of Bristol · GBdeCODE Genetics (Iceland) · ISNational Trust · GBSIB Swiss Institute of Bioinformatics · CHSmithsonian Institution · USTechnical University of Denmark · DKUniversidad Nacional Autónoma de México · MXUppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The island of St Helena played a crucial role in the suppression of the transatlantic slave trade. Strategically located in the middle of the South Atlantic, it served as a staging post for the Royal Navy and reception point for enslaved Africans who had been "liberated" from slave ships intercepted by the British. In total, St Helena received approximately 27,000 liberated Africans between 1840 and 1867. Written sources suggest that the majority of these individuals came from West Central Africa, but their precise origins are unknown. Here, we report the results of ancient DNA analyses that we conducted as part of a wider effort to commemorate St Helena's liberated Africans and to restore knowledge of their lives and experiences. We generated partial genomes (0.1-0.5×) for 20 individuals whose remains had been recovered during archaeological excavations on the island. We compared their genomes with genotype data for over 3,000 present-day individuals from 90 populations across sub-Saharan Africa and conclude that the individuals most likely originated from different source populations within the general area between northern Angola and Gabon. We also find that the majority (17/20) of the individuals were male, supporting a well-documented sex bias in the latter phase of the transatlantic slave trade. The study expands our understanding of St Helena's liberated African community and illustrates how ancient DNA analyses can be used to investigate the origins and identities of individuals whose lives were bound up in the story of slavery and its abolition.

Indexed as

African PeopleEnslaved PersonsBlack PeopleDNA, AncientFemaleGenotypeHumansMaleDNA, Ancientancestryancient DNAgenomicsidentity by statenext-generation sequencingtransatlantic slave trade

Identifiers

PMID37683613
PMCPMC10502851
OpenAlexW4386526294

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.