<p>(A). Boxplots show the differential expression of <i>Cpsf6</i> APA isoforms (a tandem UTR event) in different tissues and cell lines, as well as different development stages. (B). Boxplots show the differential expression of <i>Eif4e2</i> APA isoforms (an alternative UTR event) in different tissues, development and spermatogenesis. Gene models of the APA isoforms are indicated on top, with microarray probes targeted regions on the 3′ UTRs marked with colors. Blue color represents the common or proximal UTR probeset while red color represents extended or distal UTR probeset. Box-whiskers indicate the expression of probesets across biological replicates within each condition. Y-axis: log2-transformed expression values from microarrays; X-axis: experimental conditions. The descriptions for the biological conditions are listed below each boxplot. <i>cor</i>: Pearson correlation coefficient; <i>p</i>: two-way ANOVA p value.</p
