Fig. 3.

INO expression pattern is conserved between A. squamosa and Arabidopsis. (A–D) INO mRNA was detected by in situ hybridization (arrowheads) with antisense probes only in the outer integument in early-stage (A) and developing (B) ovules of wild-type A. squamosa in patterns similar to those observed at corresponding stages of development in Arabidopsis ovules (C and D). Hybridization was not detected with a sense INO probe in wild-type A. squamosa (E), nor with an antisense probe in Ts ovules (F). [Scale bar, 20 μm (A, B, and D–F); 10 μm (C).]