1. Introduction
While it could be said that genetical study of plant development started, in a way, 150 years ago with the publication of Gregor Mendel’s paper on ratios in pea genetics, as certain of the phenotypes studied would now be considered developmental alterations, such as fasciation, constricted seed pods, or axial versus terminal pods, the fusion of plant genetics and developmental biology was only to happen long after the rediscovery of Mendel’s paper