Table II.

Overview of maize cell cycle genes

Gene Name	Synonym(s)	Accession No.	Expression Profilea	Reference(s)
CDC25		TC300846b	V
CDKA1;1	Cdc2Zma	P23111c	II	Colasanti et al. (1991)
CDKA2;1		TC292977b	V
CDKB1;1		TC287283b	III
CDKB2;1		TC311057b	V
CDKC2		TC304893b	V
CDKD1		TC281529b	V
CDKE1		TC279290b	V
CKS1		TC292250b	III
CKS2		TC312708b	III
CYCA1;1	cycIIzm	Q41732c	IV	Renaudin et al. (1994)
CYCA1;2	cycZm2w	Q43693c	IV	Hsieh and Wolniak (1998)
CYCA3;1		CD447837d	III	Lai et al. (2004)
CYCA3;2		TC292456b	IV
CYCA3;3		TC298919b	IV
CYCA3;4		TC298903b	I
CYCB1;1	cycIazm	Q41734c	III	Renaudin et al. (1994)
CYCB1;2	cycIbzm	Q41733c	III	Renaudin et al. (1994)
CYCB1;3	cycZme1	P93646c	IV
CYCB2;1	cycIIIzm	Q41731c	III	Renaudin et al. (1994)
CYCB2;2		TC300622b	III
CYCD1;1		TC284350b	II
CYCD2;1	CYCD2	Q8S524c	V
CYCD4;1	CYCD2;2, CYCD4	Q8S522c	II
CYCD4;2		TC290220b	V
CYCD5;1	CYCD1	Q8S523c	III
CYCD5;2		TC289521b	I
CYCH		TC282470b	II
DEL1		TC295278b	IV
DEL2		TC306241b	V
DPa		BE511883d
DPb		TC301910b	I
DPc		TC312155b	II
DPd		TC312156b	V
E2F		TC309263b	IV
KRP1		Q52PU9c	V	Coelho et al. (2005)
KRP2		Q52PU8c		Coelho et al. (2005)
KRP3		TC306015b	V
KRP4		TC301833b	III
RBR1;1	RBR3	Q3LXA7c	III	Sabelli et al. (2005)
RBR2;1	RRB1,	O22344c,	V	Grafi et al. (1996); Xie et al. (1996); Ach et al. (1997); Rossi et al. (2003)
	RBR1,	Q9LKX9c,
	RB1,	Q7DLV4c,
	ZmRB	Q41763c
RBR2;2	RRB2,	Q8H0J6c,	II	Ach et al. (1997)
	RBR2a,	O22346c,
	RBR2b	O22345c
WEE1		Q9SPZ8c	I	Sun et al. (1999)

^aBased on one-way ANOVA analysis, genes were constitutively (V, P > 0.05, n = 3) and differentially expressed (P < 0.05, n = 3) and divided in four different classes based on hierarchical clustering (I, II, III, and IV; see Fig. 5).

^bAccession numbers for assembled ESTs were derived from TIGR tentative consensus (release 16.0).

^cAccession numbers for proteins were derived from UNIPROT.

^dAccession numbers for EST were derived from GenBank.