Table 2 Analysis of DNA methylation levels in different regions of rice.

Region	Type I (%)	Type II (%)	Type III (%)	Type IV (%)	Total methylation level¹(%)	Full methylation level²(%)	Hemi-methylation level³(%)	Nonmethylation level⁴(%)
FZ	50.96^ab	15.23^a	13.48^ab	20.33^c	49.04^a	35.55^bc	13.48^ab	50.96^ab
CHY	50.89^ab	17.01^a	12.92^a	19.18^bc	49.11^a	36.19^c	12.92^a	50.89^ab
JSJ	48.82^a	15.57^a	15.79^b	19.82^c	51.18^a	35.39^bc	15.79^b	48.82^a
XS	51.96^ab	15.57^a	15.39^ab	17.08^ab	48.04^a	32.65^ab	15.39^ab	51.96^ab
WC	54.77^b	15.81^a	13.61^ab	15.81^a	48.03^a	31.62^a	13.61^ab	54.77^b

a–c different lowercase letters represent significant different among the five regions, p < 0.05; 1. Total methylation level: (Type II + Type III + Type IV)/(Type I + Type II + Type III + Type IV) × 100%; 2. Full methylation level: (Type III + Type IV)/(Type I + Type II + Type III + Type IV) × 100%; 3. Hemi-methylation level: (Type II)/(Type I + Type II + Type III + Type IV) × 100%; 4. Nonmethylation level: (Type I)/(Type I + Type II + Type III + Type IV) × 100%.

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