Histogram showing the distribution of gene expression values (in log₂RPKM) for all genes in representative samples C26 and S26.

<p>The gene expression levels were first normalized to RPKM values and then log2 transformed as shown on x axis. Y axis indicates the number of genes with expression values falling in the particular log₂RPKM intervals. This figure shows the similar distributions of gene expression values for all genes between C26 and S26.