Figure 4.

Balancing signals during the meristematic switch to reproductive growth.

Meristems on top represent the approximate stages during which the molecular events represented below occur.

(A) The balance between SPLs and miR156/529 determines the branching pattern and vegetative features of the inflorescence.

(B) Florigens transported from the leaves form FACs that induce transcription of MADS-box genes and switch the developmental fate of the meristem. DHD4 competes with OsFD1 to bind Gf14 under LDs.

(C) The reproductive switch is antagonized by FRCs, and RCNs transported from the leaves compete with the florigens for binding to Gf14s.