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Model Explaining the Effect of Increased Dosage of TB1 on Spikelet Development in Wheat.
Increased levels of TB1 restrict the interaction of FT1 with other members of the floral activating complex (FDL and 14-3-3), which reduces expression of meristem identity genes (e.g., VRN1) and facilitates paired spikelet development. At standard levels of TB1, the floral activating complex promotes robust expression of meristem identity genes, and paired spikelet development is suppressed.
