Table 1. Percent similarity between amino acid sequences of CYPs.

	Arabidopsis thaliana							Selaginella moellendorffii
		CYP85A2(BR6OX2)	CYP85A1(BR6OX1)	CYP90B1(DWF4)	CYP90A1(CPD)	CYP90C1(ROT3)	CYP90D1	CYP90E1	CYP90E2	CYP90E3	CYP90F1
Arabidopsis thaliana	CYP85A2 (BR6OX2)	100
	CYP85A1 (BR6OX1)	83	100
	CYP90B1 (DWF4)	33	32	100
	CYP90A1 (CPD)	37	35	42	100
	CYP90C1 (ROT3)	33	33	37	42	100
	CYP90D1	35	35	36	41	52	100
Selaginella moellendorffii	CYP90E1	32	31	34	40	38	37	100
	CYP90E2	34	32	33	38	39	37	86	100
	CYP90E3	33	32	34	38	37	38	77	81	100
	CYP90F1	37	36	38	43	39	35	35	37	37	100

www.ncbi.nlm.nih.gov/blast/bl2seq/wblast2.cgi). Percent identity between Arabidopsis CYP90s ranged from 32% (between AtCYP90B1 and AtCYP85A1) to 83% (between AtCYP85A1 and AtCYP85A2). A comparison of CYP sequences in Arabidopsis and Selaginella revealed identity values ranging from 31% (between SmCYP90E1 and AtCYP85A1) to 43% (between SmCYP90F1 and AtCYP90A1). SmCYP90E consists of three members that share 77∼86% identity, whereas SmCYP90F has one member, which has 35∼37% identity with the SmCYP90Es. Sequences of known BR biosynthetic enzymes from Arabidopsis were pair-wise compared with select sequences from Selaginella. Percent identity values were calculated using the 2 BLAST program (