Plant 'evo-devo' goes genomic: from candidate genes to regulatory networks.

Plant development gives rise to a staggering complexity of morphological structures with different shapes, colors, and functions. Understanding the evolution of control mechanisms that underlie developmental processes provides insights into causes of morphological diversity and, therefore, is of great interest to biologists. New genomic resources and techniques enable biologists to assess for the first time the evolution of developmental regulatory networks at a global scale. Here, we address the question of how comparative regulatory genomics can be used to reveal the evolutionary dynamics of control networks linked to morphological evolution in plants.