Figure 4
From: Natural variation in DNA methylation in ribosomal RNA genes of Arabidopsis thaliana
CR DNA methylation in F2 populations derived from crosses between Col and accessions with hypomethylated NORs. (A) Plot of CR DNA methylation index versus NOR genotype in a Zdr-1 × Col F2 population (group I). The F2 individuals were classified into nine groups based on their genotypes at NOR2-NOR4 (C = Col/Col, H = Col/Zdr-1, Z = Zdr-1/Zdr-1). (B) Plot of CR DNA methylation index versus NOR genotype in a Ga-0 × Col F2 population (group II) (C = Col/Col, H = Col/Ga-0, G = Ga-0/Ga-0). (C) Plot of CR DNA methylation index versus NOR genotype in a Bay-0 × Col F2 population (group III) (C = Col/Col, H = Col/Bay-0, B = Bay-0/Bay-0). Vertical bars denote standard errors. The values obtained for the parental accessions are indicated by red horizontal lines.