Fig. 3

Metazoa-specific golgin evolution. a Coulson plot of Metazoa-specific golgin complement. Note that, for this figure and Fig. 4, filled pie sectors represent the positive identification of at least one orthologue (paralogue numbers are not shown). Light blue sectors indicate instances where an orthologue was not found in Ciona intestinalis but was found in the genome of a closely related ascidian. This representation is based on data shown in Additional file 2: Figure S1 and Additional file 6: Table S3. b Schematic showing timing of gains and losses of metazoan golgin genes. Note that, here and for Fig. 4, gene duplications yielding expanded complements are not tracked and losses are only inferred when a factor was not identified in more than one representative of a taxonomic group