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Related Experiment Videos

Group Selection May Explain Cancer Predisposition and Other Human Traits' Evolution.

Konstantinos Voskarides1

  • 1Medical School, University of Cyprus, Nicosia, Cyprus. kvoskar@ucy.ac.cy.

Journal of Molecular Evolution
|April 7, 2018
PubMed
Summary

Group selection, a key evolutionary concept, may explain genetic variation in DNA repair genes, potentially leading to higher cancer rates. This multilevel selection process could also account for the scarcity of adaptive loci found in the human genome.

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Area of Science:

  • Evolutionary Biology
  • Genetics
  • Cancer Research

Background:

  • The debate between group selection and gene selection, notably between Edward O. Wilson and Richard Dawkins, highlights differing perspectives on evolutionary mechanisms.
  • Evolutionary processes are increasingly understood as multilevel, involving interactions at the gene, individual, and group levels.

Discussion:

  • This work proposes group selection as a potential driver of increased genetic variation specifically within DNA repair genes.
  • Such genetic variation could consequently contribute to a higher incidence of cancer within populations.
  • The hypothesis suggests that group selection might explain the limited discovery of adaptive loci in the human genome despite extensive sequencing efforts.

Key Insights:

  • Group selection may increase genetic variation in DNA repair genes.
Keywords:
AdaptationDNA repair genesExtreme environmentsGroup selectionMismatch repairNatural selection

Related Experiment Videos

  • This variation could be linked to elevated cancer incidence.
  • Group selection might explain the low number of identified adaptive loci in the human genome.

    • Outlook:

    • Further research is needed to empirically validate the role of group selection in human evolution and disease.
    • Investigating the interplay between group selection and DNA repair gene variation could offer new avenues for cancer research.
    • Understanding multilevel selection is crucial for a comprehensive view of human genetic diversity and adaptation.