Figure 1.

The xrn4 mutants exhibit pleiotropic development defects. For Col-0 and xrn4-3, the photographs show representative series of rosette leaves and cauline leaves (A,G) and magnified views of the 5th leaves (B,H), stems with siliques and flowers (C,I), terminal inflorescences (D,J), closed flower buds (E,K), and opened flowers (F,L). See Table 1 for quantifications.