Breeder's equation
= Breeder's equation
{title2=$R=h^2S$}
A one-trait short-term response model $R=h^2S$, where $R$ is the inherited change in mean, $S$ the phenotypic <selection differential> and $h^2$ narrow-sense <heritability>. It assumes an appropriate additive inheritance model and does not turn environmental <phenotype> change into inherited response.