Figure 8
From: Dynamic differential evolution schemes of WRKY transcription factors in domesticated and wild rice
Evolution of the WRKY family through domain duplication and deletion. The figure summarizes how the WRKY family in Oryza is expanding and evolving according to the phylogenetic analysis. Red dashed arrows indicate relationships as we reported previously6. Green filled boxes represent new information deduced from our data with specific Oryza WRKY gene examples. WRKY domains in the black dashed rectangle are the C2H2 type while the rest are the C2HC type. Tandem duplication of the N-terminal WRKY domain of more ancient Group Ia proteins produces Group Ia-n1. The question mark indicates that the tandem duplication of the C-terminal WRKY domain of more ancient Group Ia to produce Group Ia-n2 is theoretically possible but has not been found in the Oryza genomes we have studied so far.
