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Fig. 8
Evolutionary dynamics of adorb and related clades and transition in adorb expression patterns between jawless and jawed fish. (A) Dynamic evolution in the adora, adorb and related clades inferred from the phylogenetic analysis. The evolutionary history is depicted using maximum parsimony. Genes are color-coded as indicated and gene name is given at the birth of the respective clade. Each gene duplication event is shown as filled circle, an empty circle denotes a gene loss in the respective species group. Late gene duplication events are shown close to the tips, species-specific gene losses are not shown to keep the figure legible. Gene duplications resulting from a whole genome duplication are counted as one event. (B) Schematic representation of adorb expression in lamprey and zebrafish. Cross sections of a lamella are shown for lamprey (left panel) and zebrafish (right panel). Magenta, cells expressing adorb; white, sensory surface; light gray, lumen; medium gray, nonsensory region; stippled gray, basal lamina.