Figure 1. The minimum population size having at least one selected individual. A probability of not having at least one target genotype present in the population sampled = 0.01 is assumed. If more than one selection stage is involved, the summation of the minimum population sizes of all stages is used. The probability used for each stage is 1–(1–) when there are two selection stages, and 1–(1–) when there are three selection stages.