This paper provides an important case study in the large family Asteraceae that contains almost one-tenth of all flowering plants and has an enormous diversity of leaf forms.
Breuil-Broyer et al. show that SUPERMAN is a flower developmental canalization and robustness factor. First, partial dissociation of sexual boundary and flower meristem termination control in the sup allelic series (superman, superwoman, and supersex) has facilitated characterization of the partial independence of SUP-mediated WUS repression on the AG and CLV pathways.
Sun et al. study structural and functional variation of FUL-like (AP1 subfamily), SEP-like and AGL6-like genes in the basal eudicot Epimedium sagittatum.