.... In Arabidopsis thaliana , miR172 is expressed in the inner floral whorls where it downregulates the class A gene APETALA 2 ( AP2 ). However, what controls this predominantly inner whorl-specific expression of miR172 is not known. We show that the LEUNIG (LUG) and SEUSS (SEU) co-repressors repress miR172...

... differentiation. This work describes a modifier of ettin that causes filamentous, mispositioned outer whorl organs and reduced numbers of malformed stamens in the double mutant. The modifier was discovered to be a new allele of the seuss ( seu ) mutant. SEU encodes a novel protein that is predicted...