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Phenotypes of wild-type, ap1 and AP1 (RNAi) flowers. (A) Wild-type flower. (B) ap1–5 flower. (C) ap1–4 flower. (D) ap1–1 flower. (E–H) Flowers from weak (E), intermediate (F), intermediate/strong (G), and strong (H) AP1 (RNAi) plants. Arrowheads indicate leaf- or bract-like first whorl organs. The numbered arrows indicate the primary (1), secondary (2), and tertiary (3) flowers. The black arrows in C and G indicate leaf-like or staminoid second-whorl organs.
