Figure 2

Proportion of AS. Proportion of AS in different sizes of gene families and singletons across different identity criteria. Gene families identified by different identity criteria were grouped according to their family size and the proportions of AS were calculated for each group. There is consistently a lower proportion of AS in large gene families across different identity criteria in both human and mouse. This negative correlation between proportion of AS and protein duplication is more significant for those darker green groups. For genes with the same gene family size, the proportion of AS increases as the identity criterion decreases.