Correlation coefficients of the CpG island methylation levels across different tissues and cell types. The methylation status of CpG islands are highly correlated among the somatic and placenta cells. The methylation status of CpG island in sperm exhibits much difference in comparison with other tissue and cell types.
Zheng et al. BMC Medical Genomics 2013 6(Suppl 1):S13 doi:10.1186/1755-8794-6-S1-S13