Fig. 2

Maternal CHG methylation is established in the central cell and depends on FIS-PRC2. a Box plots showing mean values of relative DNA methylation in the central cell, sperm cell, and vegetative cell for PEGs, MEGs, and all genes. Boxes show medians and the interquartile range, error bars show the full range excluding outliers. Notches show the 95% confidence interval for the median. Asterisk marks significance (Wilcoxon rank sum test, P < 5.0e−3). b Box plots showing mean values of CHG methylation for PEGs and MEGs on maternal and paternal alleles in wild-type, fie (left panels) and dme (right panels) endosperm. Asterisk marks significance (Wilcoxon rank sum test, P < 5.0e−2)