title: Cryptic bracts exposed: insights into the regulation of leaf expansion.
abstract: Arabidopsis is unusual in producing flowers that are not subtended by specialized leaves, called floral bracts. Writing in Development, Dinneny et al. and Ohno et al. show that gain-of-function mutations of the JAGGED transcription factor produce bracts, and provide evidence that this gene plays a key role in a developmental program that regulates the size and shape of all leaves and leaf-homologs.
authors.affiliation: Department of Botany, University of Wisconsin, 430 Lincoln Drive, Madison, WI 53706, USA.
authors.forename: David A
authors.initials: DA
authors.lastname: Baum
authors.forename: Christopher D
authors.initials: CD
authors.lastname: Day
mesh_terms: D017360:Arabidopsis / Q000502:physiology*; D029681:Arabidopsis Proteins / Q000502:physiology*; D018506:Gene Expression Regulation, Plant; D008565:Membrane Proteins / Q000502:physiology*; D018515:Plant Leaves / Q000502:physiology*
chemical_list: D029681:Arabidopsis Proteins; D008565:Membrane Proteins