Fig. 3From: DNA methylome and transcriptome identified Key genes and pathways involved in Speckled Eggshell formation in aged laying hensThe overall methylation levels in the hens laying speckle and normal eggs. AÂ Correlation analysis of methylation levels between samples from the two groups. BÂ Principal component analysis of the methylation level of all samples. CÂ Histogram of cytosine site methylation level in the two groups. DÂ Line chart of the methylation levels of different genomic regions. The genomic regions of each gene were divided into 20 bins; the cytosine site methylation level of the corresponding functional regions of all genes was then averagedBack to article page