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Fig. 2 | BMC Plant Biology

Fig. 2

From: Dosage imbalance of B- and C-class genes causes petaloid-stamen relating to F1 hybrid variation

Fig. 2

Epidermal cell morphology of Petrocosmea glabristoma × Petrocosmea sericea F1 hybrid flowers. a-h Epidermal cells of different floral organs of wild-type flowers. i-p Epidermal cells of different floral organs of mutant flowers. The sepal of both wild-type and mutant flowers is comprised of flat cells in both the dorsal (a, i) and ventral epidermis (b, j). The petal epidermis of both types of flowers is composed of conical cells (c, k). In the wild-type flower, epidermal cells in the dorsal side of anthers (d) are reticular, while the filament (e) and the ventral side of anthers (f) are full of flat cells. In the mutant flower, the third whorl organs are made up of conical cells which characterize the petal identity in both the base and tip regions corresponding to the filament and anther region, respectively, of the wild-type stamen (l-n). Cell morphologies of the carpel are identical in two types of flowers. Cells of the style epidermis are rectangle (g, o). The stigma epidermis consists of columnar gland cells (h, p). WT, wild-type; MU, mutant; S-D, dorsal epidermis of the sepal; S-V, ventral epidermis of the sepal; Pet, petal; A-D, dorsal epidermis of the anther; A-V, ventral epidermis of the anther; Fil, filament; Sti, stigma; Sty, style. Bar, 300 μm

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