FIGURE 4.

Theoretical rate of decrease in heterozygosity in polyploid species from repeated rounds of inbreeding/selfing, using expressions derived by Haldane (1930). For autotetraploids (red line), 95% homozygosity (horizontal dotted line) is achieved after on average 19 generations of selfing, while for a hexaploid (blue line) 95% homozygosity is reached after approximately 32 generations. By contrast, a diploid reaches 95% homozygosity after approximately 5 generations of selfing (black dashed line).