Figure 3.

Further phenotypic aspects of suc2 mutants. (A) suc2–3 heterozygous and homozygous siblings. These 50-day-old plants were given supplemental sucrose for 16 days before being transferred to soil. The heterozygote is producing seed; the homozygote is dwarfed and nonreproductive. (B and C) A closer view of two homozygotes from this population. The very small rosette leaves are starting to turn purple because of anthocyanin accumulation. The plant in C has started to flower, but no mutant plants have ever produced viable seeds. (Bar = 1 cm.)