Genetics of growth predict patterns of brain-size evolution.

  title={Genetics of growth predict patterns of brain-size evolution.},
  author={Bruce Riska and William R. Atchley},
  volume={229 4714},
Experimental evidence is presented supporting a developmental model that explains the genetic basis for brain and body size associations. Evolutionary change in body size causes correlated change in brain size because some genes affect both traits. The commonly observed correlation between brain and body size results from genetic variation in growth determinants affecting both traits simultaneously during fetal and early postnatal growth. Later growth reduces brain-body correlation because of… CONTINUE READING