Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The variance in a quantitative trait as a function of allele frequency and association of the trait with fitness. The distribution of trait effects is assumed to be a gamma distribution with a shape parameter of 0.23. The curves going from left to right show decreasing association with fitness: β = 1, 0.1, 0.01, and 0.001.
