Comparison of gene expression frequency in IMDCs and MADCs.

A semilogarithmic plot reveals that 44 tags were decreased more than 10-fold in MADCs compared with IMDCs, whereas 71 tags were increased more than 10-fold in MADCs compared with IMDCs. Each number of tags was normalized to 31 837. The relative expression of each transcript was determined by dividing the number of tags observed in IMDCs or MADCs, as indicated. To avoid division by 0, a tag value of 1 for any tag that was not detectable in one sample was used. These ratios are plotted on the abscissa. The number of genes displaying each ratio is plotted on the ordinate.