Evidence map›Paper›PMID 31188926›Full record

ArticleGenetics and molecular biology

A systematic scoping review of the genetic ancestry of the Brazilian population.

Aracele Maria de Souza, Sarah Stela Resende, Taís Nóbrega de Sousa, Cristiana Ferreira Alves de Brito

Abstract readScoping Review
In one paragraph

Article in Genetics and molecular biology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 6 pooled it
–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

81 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Pooled it
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  3. Pooled it
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  5. Pooled it
  6. Guideline
  7. Pharmacogenomic diversity in Amazonian Indigenous populations: implications for Berlin-Frankfurt-Münster acute lymphoblastic leukemia therapy.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
    Article
  8. Genetic landscape of phenylketonuria in Brazil.Orphanet journal of rare diseases · 2026
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Reconstructing the Origin and Demographic Expansion of the TP53 p.R337H Founder Variant in Brazil.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2026
    Article
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21 more citing papers are in PubMed but not listed here.

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

4 authors.

Aracele Maria de SouzaResearch Group in Molecular Biology and Immunology of Malaria, Instituto René Rachou, Fiocruz, Belo Horizonte, MG, Brazil.
Sarah Stela ResendeResearch Group in Molecular Biology and Immunology of Malaria, Instituto René Rachou, Fiocruz, Belo Horizonte, MG, Brazil.
Taís Nóbrega de SousaResearch Group in Molecular Biology and Immunology of Malaria, Instituto René Rachou, Fiocruz, Belo Horizonte, MG, Brazil.
Cristiana Ferreira Alves de BritoResearch Group in Molecular Biology and Immunology of Malaria, Instituto René Rachou, Fiocruz, Belo Horizonte, MG, Brazil.ORCID http://orcid.org/0000-0002-8888-5477

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The genetic background of the Brazilian population is mainly characterized by three parental populations: European, African, and Native American. The aim of this study was to overview the genetic ancestry estimates for different Brazilian geographic regions and analyze factors involved in these estimates. In this systematic scoping review were included 51 studies, comprehending 81 populations of 19 states from five regions of Brazil. To reduce the potential of bias from studies with different sampling methods, we calculated the mean genetic ancestry weighted by the number of individuals. The weighted mean proportions of European, African, and Native American ancestries were 68.1%, 19.6%, and 11.6%, respectively. At the regional level, the highest European contribution occurred in the South, while the highest African and Native American contributions occurred in the Northeastern and Northern regions, respectively. Among states in the Northeast region, Bahia and Ceará showed significant differences, suggesting distinct demographic histories. This review contributes for a broader understanding of the Brazilian ancestry and indicates that the ancestry estimates are influenced by the type of molecular marker and the sampling method.

Identifiers

PMID31188926
PMCPMC6905439

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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.