Evidence map›Paper›PMID 34907168›Full record

ArticleNature communications2021

Social stratification without genetic differentiation at the site of Kulubnarti in Christian Period Nubia.

Kendra A Sirak, Daniel M Fernandes, Mark Lipson, Swapan Mallick, Matthew Mah, Iñigo Olalde, Harald Ringbauer, Nadin Rohland, Carla S Hadden, Éadaoin Harney and 15 more

Abstract readHistorical Article
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

  1. Article
  2. Sudan's complex genetic admixture history drives adaptation to malaria in Sudanese Copts.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Global patterns of natural selection inferred using ancient DNA.bioRxiv : the preprint server for biology · 2026
    Article
  4. Revealing tattoo traditions in ancient Nubia through multispectral imaging.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. Article
  6. Article
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  8. Article
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  13. Article
  14. Article
  15. Article
  16. Article
  17. Modeling of African population history usingbioRxiv : the preprint server for biology · 2023
    Article
  18. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

25 authors.

Kendra A SirakDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA. kendra_sirak@hms.harvard.edu.ORCID http://orcid.org/0000-0003-2347-3479
Daniel M FernandesEarth Institute and School of Archaeology, University College Dublin, Dublin, 4, Ireland.ORCID http://orcid.org/0000-0002-7434-6552
Mark LipsonDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.
Swapan MallickDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.
Matthew MahDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.ORCID http://orcid.org/0000-0001-8987-6436
Iñigo OlaldeDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.ORCID http://orcid.org/0000-0002-2660-6807
Harald RingbauerDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.ORCID http://orcid.org/0000-0002-4884-9682
Nadin RohlandDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.
Carla S HaddenCenter for Applied Isotope Studies, University of Georgia, Athens, GA, 30602, USA.
Éadaoin HarneyDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.
Nicole AdamskiDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.
Rebecca BernardosDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.ORCID http://orcid.org/0000-0003-4625-3727
Nasreen BroomandkhoshbachtDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.ORCID http://orcid.org/0000-0001-5350-1608
Kimberly CallanDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.ORCID http://orcid.org/0000-0003-3170-8514
Matthew FerryDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.
Ann Marie LawsonDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.ORCID http://orcid.org/0000-0003-0990-2329
Megan MichelDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.
Jonas OppenheimerDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.
Kristin StewardsonDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.
Fatma ZalzalaDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.
Nick PattersonBroad Institute of Harvard and MIT, Cambridge, MA, 02142, USA.
Ron PinhasiEarth Institute and School of Archaeology, University College Dublin, Dublin, 4, Ireland.ORCID http://orcid.org/0000-0003-1629-8131
Jessica C ThompsonDepartment of Anthropology, Emory University, Atlanta, GA, 30322, USA.ORCID http://orcid.org/0000-0003-1627-4949
Dennis Van GervenDepartment of Anthropology, University of Colorado at Boulder, Boulder, CO, 80309, USA.
David ReichDepartment of Genetics, Harvard Medical School, Boston, MA, 02115, USA.ORCID http://orcid.org/0000-0002-7037-5292

Funding

Solving ascertainment bias in ancient DNA using Ultima Genomics sequencingR01HG012287 · NHGRI · HARVARD MEDICAL SCHOOL · PI REICH, DAVID E · 2021 to 2025
$2.7M
Population mixture in evolutionary and medical geneticsR01GM100233 · NIGMS · HARVARD MEDICAL SCHOOL · PI PATTERSON, NICK J, REICH, DAVID E · 2012 to 2019
$2.7M
Howard Hughes Medical InstituteNHGRI NIH HHS R01 HG012287NIGMS NIH HHS R01 GM100233
6 · The paper itself

Abstract

Relatively little is known about Nubia's genetic landscape prior to the influence of the Islamic migrations that began in the late 1st millennium CE. Here, we increase the number of ancient individuals with genome-level data from the Nile Valley from three to 69, reporting data for 66 individuals from two cemeteries at the Christian Period (~650-1000 CE) site of Kulubnarti, where multiple lines of evidence suggest social stratification. The Kulubnarti Nubians had ~43% Nilotic-related ancestry (individual variation between ~36-54%) with the remaining ancestry consistent with being  introduced through Egypt and ultimately deriving from an ancestry pool like that found in the Bronze and Iron Age Levant. The Kulubnarti gene pool - shaped over a millennium - harbors disproportionately female-associated West Eurasian-related ancestry. Genetic similarity among individuals from the two cemeteries supports a hypothesis of social division without genetic distinction. Seven pairs of inter-cemetery relatives suggest fluidity between cemetery groups. Present-day Nubians are not directly descended from the Kulubnarti Nubians, attesting to additional genetic input since the Christian Period.

Indexed as

Social StatusEgyptFemaleFossilsGene PoolGenetic DriftGenetics, PopulationGenetic VariationGenome, HumanHistory, AncientHumansMaleSex CharacteristicsSudan

Identifiers

PMID34907168
PMCPMC8671435

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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.