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Figure 2


Fig. 2. Synergistic genetic interactions between seu and ap1. (A) A seu-1 flower. (B) An inflorescence of seu-1. (C) An ap1-3 flower. (D) Comparing the height of ap1-3 plants heterozygous or homozygous for seu-1. (E) An ap1-3 seu-1 double mutant flower. Note the complete absence of petals and the carpelloid whorl 1 organs with horn-like projections (arrows). Secondary flowers are absent. (F) An ap1-3 flower heterozygous for seu-1. Note the complete loss of petals and the formation of carpelloid whorl 1 organs (arrows) in the primary and the secondary flowers. (G) An ap1-1 flower. (H) An inflorescence of ap1-1. (I) An ap1-1 seu-1 double mutant flower that produced secondary and higher order flowers. Many of the flowers exhibit carpelloid sepals (arrows). (J) The inflorescence of an ap1-1 seu-1 double mutant plant. The inflorescence resembles cauliflowers, with many more higher order floral meristems.