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Human genome diversity

H M Cann1

  • 1Fondation Jean-Dausset, Centre d'étude du polymorphisme humain (CEPH), Paris, France. howard.cann@cephb.fr

Comptes Rendus De L'Academie Des Sciences. Serie III, Sciences De La Vie
|October 14, 1998
PubMed
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Human genome diversity studies reveal most genetic variation exists within populations, not between them, challenging the concept of race. Evidence supports an African origin for modern humans, with subsequent migrations populating the globe.

Area of Science:

  • Genetics
  • Human Evolution
  • Anthropology

Background:

  • Human genome diversity studies investigate genetic variation to understand human origins and evolution.
  • Thousands of DNA polymorphisms (genetic markers) enhance analytical capabilities in these studies.
  • Existing research highlights significant genetic variability within populations, not between them.

Purpose of the Study:

  • To analyze genetic variation for understanding the origins and evolution of anatomically modern humans.
  • To discredit the genetic basis of 'race' by demonstrating variability within populations.
  • To support the Human Genome Diversity Project (HGDP) for global sample collection and data distribution.

Main Methods:

  • Analysis of genetic variation among individuals and populations.

Related Experiment Videos

  • Utilizing thousands of DNA polymorphisms (genetic markers).
  • Paleontological, archaeological, and genetic diversity data integration.

    • Main Results:

    • The majority of human genetic variability is found within populations, not between them.
    • Genetic data effectively discredits a biological basis for the concept of 'race'.
    • Evidence strongly supports an African origin for modern humans over 100,000 years ago, followed by global migrations.

    Conclusions:

    • Human genetic diversity is primarily individual, not population-based, refuting racial typologies.
    • Consistent evidence from multiple disciplines supports an Out-of-Africa model for human origins and dispersal.
    • The Human Genome Diversity Project is crucial for preserving samples and distributing data for future research.