The ABC model of flower development is a scientific model of the process by which flowering plants produce a pattern of gene expression in meristems that leads to the appearance of an organ oriented t
Flower of A. thaliana.
Flowers of A. majus.
Flowers of Petunia hybrid.
AGAMOUS mutation resulting in a double-flowered Arabidopsis
Meristem
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In cell biology, the meristem is a structure composed of specialized tissue found in plants, consisting of stem cells, known as meristematic cells, which are undifferentiated cells capable of continuo
Microscopic image of a shoot apical meristem surrounded by leaf primordia of Arabidopsis thaliana.
Note the long spur of the above flower. Spurs attract pollinators and confer pollinator specificity. (Flower: Linaria dalmatica)
Complex leaves of Cardamine hirsuta result from KNOX gene expression