A Alignment of a portion of maize BRD1 with brC-6 oxidases from other plants. B Phylogenetic relationships between a maize BRD1protein and other P450 proteins in maize and other plants. An unrooted tree was constructed using the neighbor-joining method. Accession numbers are as follows: rice brd1 (AB084385), OsDwarf4 (Q5CCK3), At Dwarf (AB035868), AtBRC-6 ox2 (NP_566852), Tomato Dwarf (U54770), At CPD (X87367), At Rot3 (AB008097), At Dwarf4 (AF044216), ZmDWF1 (AAS90832), ZmDwarf3 (U32579), barley dwarf3 (AF326277), At KAO1 (AF318500), At KAO2 (AF318501), ZmDWF4 (GRMZM2G065635), CPD Vigna (AF279252).