Evidence map›Paper›PMID 29500350›Full record

ArticleNature communications2018

Strong selection during the last millennium for African ancestry in the admixed population of Madagascar.

Denis Pierron, Margit Heiske, Harilanto Razafindrazaka, Veronica Pereda-Loth, Jazmin Sanchez, Omar Alva, Amal Arachiche, Anne Boland, Robert Olaso, Jean-Francois Deleuze and 5 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

37 citing papers in PubMed, 69 citations in OpenAlex.

  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
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  13. Human genetic admixture through the lens of population genomics.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    Review
  14. Article
  15. Article
  16. Pharmacogenomics · 2022
    Article
  17. Review
  18. Review
  19. Article
  20. New insights into human immunity from ancient genomics.Current opinion in immunology · 2021
    Review
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

15 authors at 5 institutions in 3 countries.

Denis PierronLaboratoire d'Anthropologie Moléculaire et Imagerie de Synthèse, UMR 5288 CNRS, Université de Toulouse, 31073, Toulouse, France. denis.pierron@cnrs.fr.
Margit HeiskeLaboratoire d'Anthropologie Moléculaire et Imagerie de Synthèse, UMR 5288 CNRS, Université de Toulouse, 31073, Toulouse, France.
Harilanto RazafindrazakaLaboratoire d'Anthropologie Moléculaire et Imagerie de Synthèse, UMR 5288 CNRS, Université de Toulouse, 31073, Toulouse, France.
Veronica Pereda-LothLaboratoire d'Anthropologie Moléculaire et Imagerie de Synthèse, UMR 5288 CNRS, Université de Toulouse, 31073, Toulouse, France.
Jazmin SanchezLaboratoire d'Anthropologie Moléculaire et Imagerie de Synthèse, UMR 5288 CNRS, Université de Toulouse, 31073, Toulouse, France.
Omar AlvaLaboratoire d'Anthropologie Moléculaire et Imagerie de Synthèse, UMR 5288 CNRS, Université de Toulouse, 31073, Toulouse, France.
Amal ArachicheLaboratoire d'Anthropologie Moléculaire et Imagerie de Synthèse, UMR 5288 CNRS, Université de Toulouse, 31073, Toulouse, France.
Anne BolandCommissariat à l'Energie Atomique, Institut Génomique, Centre National de Génotypage, 91000, Evry, France.
Robert OlasoCommissariat à l'Energie Atomique, Institut Génomique, Centre National de Génotypage, 91000, Evry, France.
Jean-Francois DeleuzeCommissariat à l'Energie Atomique, Institut Génomique, Centre National de Génotypage, 91000, Evry, France.
Francois-Xavier RicautLaboratoire d'Anthropologie Moléculaire et Imagerie de Synthèse, UMR 5288 CNRS, Université de Toulouse, 31073, Toulouse, France.
Jean-Aimé RakotoarisoaInstitut de Civilisations/Musée d'Art et d'Archéologie, Université d'Antananarivo, 101, Antananarivo, Madagascar.
Chantal RadimilahyInstitut de Civilisations/Musée d'Art et d'Archéologie, Université d'Antananarivo, 101, Antananarivo, Madagascar.
Mark StonekingDepartment of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, D-04103, Leipzig, Germany.
Thierry LetellierLaboratoire d'Anthropologie Moléculaire et Imagerie de Synthèse, UMR 5288 CNRS, Université de Toulouse, 31073, Toulouse, France.
AMIS - Laboratoire d'anthropologie moléculaire et imagerie de synthèse · FRCentre National de Recherche en Génomique Humaine · FRUniversity of Antananarivo · MGAix-Marseille Université · FRMax Planck Institute for Evolutionary Anthropology · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

While admixed populations offer a unique opportunity to detect selection, the admixture in most of the studied populations occurred too recently to produce conclusive signals. By contrast, Malagasy populations originate from admixture between Asian and African populations that occurred ~27 generations ago, providing power to detect selection. We analyze local ancestry across the genomes of 700 Malagasy and identify a strong signal of recent positive selection, with an estimated selection coefficient >0.2. The selection is for African ancestry and affects 25% of chromosome 1, including the Duffy blood group gene. The null allele at this gene provides resistance to Plasmodium vivax malaria, and previous studies have suggested positive selection for this allele in the Malagasy population. This selection event also influences numerous other genes implicated in immunity, cardiovascular diseases, and asthma and decreases the Asian ancestry genome-wide by 10%, illustrating the role played by selection in recent human history.

Indexed as

Genome, HumanGenome-Wide Association StudySelection, GeneticBlack PeopleDuffy Blood-Group SystemHumansMadagascarSpatial AnalysisDuffy Blood-Group System

Identifiers

PMID29500350
PMCPMC5834599
OpenAlexW2799351006

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.