Figure 3From: Molecular evolution and diversification of the Argonaute family of proteins in plants Expansion of AGOs during plant evolution. AGO gene family tree was reconciled with the completely sequenced species tree to identify gain and loss events in each lineage during evolution. The proportions of gains (numerators) versus losses events (denominators) for AGO genes are shown on each of the branches. Lower panel indicates the tentative time of appearance of different members of the AGO family in plants.Back to article page