Figure 5

Distribution of the number of ortholog sets for two categories: total species in ortholog sets (A) where orthologs from non-reference species were compared to the reference species dataset, or (B) restricted to only the reference species in ortholog sets. Both graphs illustrate the number of orthologs in each category unrestricted by conserved splicing (‘All orthologs’), or as constrained by conserved splicing with increasingly more stringent numbers of reference species. The value of the x-axis is the total number of species in each ortholog set only for the line called “all orthologs”. For all the other lines, the x-axis refers to the number of species in the ortholog set that have splicing conserved at the respective level.