Phyllotaxis from a Single Apical Cell

Convergent phyllotactic patterns shape architectural diversity in land plants. Phyllotaxis is determined by rotating divisions of a single apical cell mosses. 4D division plane orientation rely on geometrical, physical, and biochemical cues. Shared molecular players act at different scales to drive leafy shoot morphogenesis pattern phyllotaxis distantly related plant lineages. Phyllotaxis, the geometry leaf arrangement around stems, determines architecture. Molecular interactions coordinating formation have mainly been studied multicellular meristems flowering evolved independently major In mosses, it arises from cell, raising question how asymmetric single-celled meristem create whether associated genetic processes are shared across We present an overview mechanisms governing specification activity model moss, Physcomitrium patens, argue that similar regulatory modules deployed repeatedly evolution operate function convergent forms.