Comparison between the simulation results and analytical model predictions under genetic hitchhiking effects^*

*Parameter settings are the immigration rate of pollen mP = 0.08 and seeds mS = 0.04, the effective population size = 100, the selection coefficients in the gametophyte and sporophyte stages saO = saP = sa/2 = 0.04, and the degree of dominance = 0.5. The genotypic frequencies in the continent and the initial island populations are 0.1225 for AABB, 0.105 for AABb, 0.0225 for AAbb, 0.105 for AaBB, 0.245 for AB/ab, 0.045 for ab/aB, 0.105 for Aabb, 0.0225 for aaBB, 0.105 for aaBb, and 0.1225 for aabb. The steady-state simulation results (mean ± Sd) are obtained from 10000 independent runs.