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Genetic basis of racial differences.

C Bouchard1

  • 1Physical Activity Sciences Laboratory, Laval University, Ste-Foy, Quebec.

Canadian Journal of Sport Sciences = Journal Canadien Des Sciences Du Sport
|June 1, 1988
PubMed
Summary

Human genetic variation is extensive, but most is shared across populations. Modest genetic differences between races may significantly impact performance, though further research is needed.

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Area of Science:

  • Evolutionary biology
  • Human genetics
  • Population genetics

Background:

  • The concept of race has historical roots and requires definition within evolutionary biology.
  • Understanding human genetic variation is crucial for analyzing population differences.

Purpose of the Study:

  • To define race in evolutionary biology.
  • To quantify human genetic variation.
  • To estimate genetic differences within and between racial groups.
  • To explore implications for sport performance.

Main Methods:

  • Review of historical concepts of race.
  • Quantification of human genetic variation.
  • Estimation of genetic differences using population genetics principles.

Main Results:

  • Human genetic variation is extensive, particularly in non-coding DNA sequences.
  • Most genetic variation is shared across all human populations.
  • Approximately 10% of genetic variation is specific to particular races or populations.
  • Modest genetic differences exist between racial groups.

Conclusions:

  • Current data does not allow definitive conclusions on the significance of racial genetic differences for sport performance.
  • The observed low level of genetic heterogeneity between races may still have considerable implications for performance.
  • Further research is required to fully understand the relationship between genetic variation and performance disparities.

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