Phylogenetic analysis. (A) Bayesian consensus phylogram of 67 Arabidopsis (At) and maize (GRMZM) Aux/IAA protein sequences. The maize BIF1 and BIF4 sequences and their closest Arabidopsis relatives, ATIAA15, and ATIAA28, respectively, are bolded. Phylogram is rooted using Arabidopsis IAA32 and IAA34 based on Remington (61). Branch widths are proportional to support with bold branches equivalent to greater than or equal to 0.95 clade credibility. (B) Bayesian consensus phylogram of 55 Arabidopsis (At) and maize (GRMZM) ARF protein sequences. Phylogram is rooted using the Arabidopsis ARF10, ARF16, and ARF17 clade, based on Remington (61). Branch widths are proportional to support with bold branches equivalent to greater than or equal to 0.95 clade credibility. (Scale bars, substitution per site.)