Fig. 1.

ML tree of euAP2/TOE3 gene lineage across vascular plants. Yellow stars indicate large-scale duplication events. These duplications are (from top to bottom): 1) before the diversification of Brassicaceae; 2) two duplications specific to Solanaceae; 3) with the radiation of Papaveraceae; 4) two duplications before the radiation of Poales; 5) one within Zingiberales. BS values > 60% were placed at the nodes. Colors in the tree follow the top left conventions for each major group of seed plants. Black arrows point to the AP2 sequences where expression was analyzed by In Situ hybridization in each species.