The study of the development of organisms is based within our UMR on an integrative approach of genetics and functional genomics, cell biology and biochemistry. Model species benefiting from tools such as collections of mutants or sequenced genomes offer the possibility to progress faster in the understanding of complex mechanisms. Thus, the comparative study of development between different species represents a way of accelerating research on non-model plants. It also identifies genes that participate in the immutable mechanisms of the development process and differentiates them from those involved in species specificities. The UMR DIADE can therefore take advantage of the diversity of the plants studied. The goal of the UMR researchers meeting on the theme of development is to strengthen the synergy between the teams and to highlight the added value of this diversity.