24:duplication&12:speciation&10:speciation&8:duplication&6:duplication&4:speciation&2:speciation&0:leaf&1:leaf&3:leaf&5:leaf&7:leaf&9:leaf&11:leaf&23:duplication&17:speciation&15:speciation&13:leaf&14:leaf&16:leaf&22:speciation&20:duplication&18:leaf&19:leaf&21:leaf