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Strict long COVID, symptom persistence, and functional decline among community-dwelling older adults in Quito, Ecuador: a cross-sectional study.

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Related Experiment Video

Updated: May 5, 2026

Heuristic Mining of Hierarchical Genotypes and Accessory Genome Loci in Bacterial Populations
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Genetic Ancestry and Population Structure Across Ecuador.

Fabricio González-Andrade1

  • 1Postgraduate Studies Department in Health, Faculty of Health Sciences and Welfare, Indoamerica Technological University, Machala and Sabanilla Street, Quito 170301, Ecuador.

Genes
|May 4, 2026
PubMed
Summary

Ecuador

Area of Science:

  • Population Genetics
  • Human Ancestry
  • Genomic Studies

Background:

  • Ecuador's diverse population results from Native American, European, and African interactions.
  • Existing genetic ancestry studies in Ecuador are fragmented and inconsistent.

Purpose of the Study:

  • To systematically review and synthesize genetic ancestry and population structure studies in Ecuador.
  • To critically appraise the existing body of evidence on Ecuadorian population genetics.

Main Methods:

  • Systematic review following PRISMA 2020 guidelines.
  • Searches across major scientific databases (PubMed, Scopus, Web of Science, SciELO, Google Scholar).
  • Qualitative synthesis of 12 included studies using diverse genetic markers.
Keywords:
EcuadorY chromosomegenetic ancestrymitochondrial DNApopulation structurethree-way admixture

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Main Results:

  • Consistent evidence of three-way admixture (Native American, European, African) across Ecuadorian populations.
  • Significant regional and population-specific heterogeneity in ancestry proportions.
  • Evidence of sex-biased admixture, with distinct maternal and paternal lineage patterns.

Conclusions:

  • Ecuadorian populations exhibit a common three-way admixture pattern with substantial internal variation.
  • Geographic and demographic context is crucial for interpreting genetic ancestry.
  • Need for standardized, large-scale genomic studies in Ecuador.