The expected heterozygosity HS and the inbreeding coefficients FIS and FST as a function of the number of generations since population divergence, for two values of the tetrasomy parameter Θ: (a) Θ=0, (b) Θ=1. N=1000, m=0, μ=0.0001, 1000 loci. The dotted lines show the theoretical expectations for HS and FST based on full tetrasomy.