Poly(A) site shift of auxin-related genes in cstf77-2 versus Col-0 seedlings. A to F, schematic representation of positions and signal abundances of poly(A) in GH3.5 (A), LAX3 (B), IAA9 (C), IAA28 (D), IAA7 (E), ARF9 (F). Gene models are shown in the lower panels. Boxes and lines designate exons and introns, respectively.