Fig. 8

Diagram of dosage imbalance of B-/C-class genes associated with third floral whorl organ identities. Blue rectangles represent the B-class gene products and red rectangles represent the C-class gene products. The color deepness is positively correlated with the dosage of corresponding gene products. The balanced dosage between B- and C-class gene products produces the normal stamen in the third floral whorl (the center). When either the B-class gene products reduce or the C-class gene products increase, the stamen transforms into carpellody. However, petalody can be induced by either the increased B-class gene products or the reduced C-class gene products or both happened simultaneously