Table 4.

Summary of DNA methylation pattern changes of DK151 and IR64 under three water conditions

Band classa	Tillering stage												Booting stage			Heading stage
	Leaves			Roots			DK151			IR64			Leaves			Leaves
	DK151	IR64	Comm.b	DK151	IR64	Comm.	Leaf	Root	Comm.	Leaf	Root	Comm.	DK151	IR64	Comm.	DK151	IR64	Comm.
a	79	75	31	88	75	43	79	88	71	75	75	56	6	8	2	31	8	3
b	23	26	10	23	27	10	23	23	11	26	27	12	0	0	0	0	1	0
c	0	0	0	2	7	1	0	2	0	0	7	0	0	0	0	0	0	0
(a+b+c)	102	101	41	113	109	54	102	113	82	101	109	68	6	8	2	31	9	3
d	11	12	6	20	8	5	11	20	10	12	8	2	3	5	2	18	2	1
e	11	10	2	21	13	5	11	21	10	10	13	13	2	0	0	3	2	0
f	0	1	0	4	4	2	0	4	0	1	4	1	0	0	0	0	0	0
(d+e+f)	22	23	8	45	25	12	22	45	20	23	25	16	5	5	2	21	4	1
g	37	31	13	28	26	9	37	28	28	31	26	26	7	3	1	1	1	0
h	1048	922	876	1020	918	865	1048	1020	964	922	918	858	1159	1140	1105	1122	1142	1077
i	2	3	0	5	2	0	2	5	0	3	2	0	0	0	0	2	0	0
Total	1211	1080	938	1211	1080	940	1211	1211	1105	1080	1080	968	1177	1156	1110	1177	1156	1081

^aa: demethylated by drought, but remethylated after recovery; b: demethylated by drought, and remaining hypomethylated after recovery; c: demethylated by drought, but remethylated in a different pattern after recovery; d: methylated by drought, but demethylated after recovery; e: methylated by drought, and remaining methylated after recovery; f: methylated by drought, but demethylated in a different pattern after recovery; g: DNA methylation pattern remained unchanged under drought, but changed after recovery; h: DNA methylation pattern was unchanged under all three conditions; i: others.

^bComm., the number of common bands shared by DK151 and IR64 or two different tissues of the same genotype.