
APA site switching genes and their distributions among different samples. (A) An example of a switching gene. Bottom is gene body, big black block is exon, and small black block is untranslated region; top indicates two poly(A) sites and middle is 3′ reads in the two tissues. (B) Switching genes between mature pollen and other tissues. (C) Switching genes with 3′ UTR PACs in pair-wise comparisons. (D) APA site switching genes with non-3′ UTR PACs in pair-wise comparisons.











