Figure 6

Intron/exon structures define relationships and evolutionary birth order of arthropod GATA paralogs. The intron/exon structures for the arthropod GATA456 genes suggest a birth order (as described in the discussion). The dotted line represents emergence of the last common bilaterian, pancrustacean, and insect ancestors. The red text represents points of intron/exon modifications, while the grey box describes the timing of gene duplication events. Intron/exon structures represent the inferred state for each paralog in the last common insect ancestor.