Differentially expressed tags in DS tissue library. The “x” axis represents fold-change of differentially expressed unique tags in the DS library. The “y” axis represents the number of unique tags (log10). Differentially accumulating unique tags within 5-fold difference between libraries are shown in the red region (99.35%). The blue (0.36%) and green (0.29%) regions represent unique tags that are up- and down regulated for more than 5 fold in the DS library, respectively.