Figure 1.

Counts of the number of duplicated conserved noncoding elements (CNE) shared between the zebrafish and medaka genomes that can be traced back to the ancestral Actinopterygian linkage groups. Red = number of duplicates arising solely from an ancestral cluster. Black = number of duplicated CNE with a likely origin from a single ancestral linkage group where the shared paralogy with another cluster could not be excluded. Hatched = number of multiple copy CNE that show paralogy to 2 or more clusters. It should be noted that counts within the hatched stacked bars exceed the actual number of CNE within each category, as a single CNE may share ancestry with 2 or more ancestral linkage groups. Counts within red and black stacked bars correspond to the actual number of duplicated CNE.