Figure 9.

Modified ABC Models Based on the Early (Left) and Late (Right) Expression Patterns of AP3 and PI Homologs in Aquilegia.

The early-stage model corresponds to the period when sepals, stamens, and staminodia are initiating, while the late-stage model encompasses everything after carpel initiation. Color gradients indicate transient or weak expression. Each AP3 paralog has a distinct expression pattern, while the expression domain of the single PI homolog encompasses the summation of all of the AP3 expression domains. Placeholders are included for potential A and C function loci. SEP, sepals; PET, petals; STA, stamens; STD, staminodia; CAR, carpels.