Figure 1.

mat3 is a knockdown mutant and exhibits shorter siliques and reduced seed set. A, Structure of MAT3 (At2g36880). The exon is indicated by a black box, and untranslated regions are indicated by gray lines. The T-DNA in the 3′ untranslated region is indicated by the black triangle. UBIQUITIN5 (UBQ5) was used as an internal loading control. The numbers 1, 2, and 3 indicate primers used for RT-PCR. B, Representative 10-week-old plants of the wild type (WT) and mat3. Bars = 1 cm. C, Intact and opened siliques of the wild type and mat3. Bars = 0.5 cm (left) and 500 μm (right).