Figure 2From: Natural variation in DNA methylation in ribosomal RNA genes of Arabidopsis thalianaPositive correlation between rRNA gene copy number and CR DNA methylation. CR DNA methylation indices were plotted against normalized rRNA gene copy numbers in 41 Arabidopsis natural accessions. Means and standard errors were calculated from at least three independent experiments. The gray line is a linear regression of the data (linear regression coefficient, R = 0.63).Back to article page