THE BEAT BEGINS. “Once floral meristem growth commences, a specific developmental program is activated that leads to the formation of the different types of floral organs in a stereotypic pattern. As outlined above, this key regulatory event is controlled by a small number of floral meristem identity genes, which were originally identified in mutant screens for plants with defects in early flower development.”
https://www.sciencedirect.com/science/article/pii/S0168952510001873