Fig. 3

Gene and conserved motif structure of the B. napus Aux/IAA gene family. a Exon-intron organization of B. napus Aux/IAA genes. The blue solid boxes represent exons and black lines represent introns. b Conserved motif analysis of B. napus Aux/IAA proteins. The motifs representing four conserved domains are marked in red, green, blue and purple solid boxes, respectively. c The amino acid sequence of four motifs. The bits indicate amino acid conservation in each positon. LxLxLx motifs in domain I, GWPPv/i motifs in domain II and conserved lysine and the OPCA-like motif phosphorylation sites in domain III/IV are highlighted with black boxes