Fig. 3. Probability of retaining all 10 rare alleles, two each with frequencies 0.01, 0.02, 0.03, 0.04 and 0.05 (a), and the number of alleles lost (b). The initial population has 100 individuals. For paired cross, there is no reciprocal cross. Each strategy is denoted by the sample size (100 or 200), mating method (chain cross, self-pollination, and paired cross without reciprocal cross), and the number of seeds to be harvested from each cross (1, 2, 3, or 30).