Harmonic mean (marked by open circle), and 10th, 50th and 90th percentiles (marked by bar) of 5000 estimated effective numbers of breeders in the inbred population under (A) monogamy with N = 10 (half of each sex) parents and (B) polygyny with Nm = 5 male and Nf = 20 female parents, for the case of high-polymorphic marker loci. The sample size of progeny is n = 100. is the estimate from heterozygote-excess method (Pudovkin et al. 1996), the estimate from equation (7) and the estimate by harmonic mean of and . The value in top of each graph is the clipped 90th percentile, and the value in parentheses is the percentage of replicates with . The dashed line shows the effective number of breeders expected from demographic parameters (Neb,demo = 10 under monogamy and 13.79 under polygyny, respectively).