title: The gene regulatory network for root epidermal cell-type pattern formation in Arabidopsis.
abstract: A fundamental aspect of multicellular development is the patterning of distinct cell types in appropriate locations. In this review, the molecular genetic control of cell-type pattern formation in the root epidermis of Arabidopsis thaliana is summarized. This developmental system represents a simple and genetically tractable example of plant cell patterning. The distribution of the two epidermal cell types, root-hair cells and non-hair cells, are generated by a combination of positional signalling and lateral inhibition mechanisms. In addition, recent evidence suggests that reinforcing mechanisms are used to ensure that the initial cell fate choice is adopted in a robust manner.
authors.affiliation: Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, 48109, USA. schiefel@umich.edu
authors.forename: John
authors.initials: J
authors.lastname: Schiefelbein
authors.forename: Su-Hwan
authors.initials: SH
authors.lastname: Kwak
authors.forename: Yana
authors.initials: Y
authors.lastname: Wieckowski
authors.forename: Christa
authors.initials: C
authors.lastname: Barron
authors.forename: Angela
authors.initials: A
authors.lastname: Bruex
mesh_terms: D017360:Arabidopsis / Q000235:genetics / Q000254:growth & development* / Q000378:metabolism; D029681:Arabidopsis Proteins / Q000235:genetics / Q000378:metabolism; D018507:Gene Expression Regulation, Developmental; D053263:Gene Regulatory Networks; D018519:Meristem / Q000235:genetics / Q000254:growth & development* / Q000378:metabolism; D019441:Plant Epidermis / Q000254:growth & development* / Q000378:metabolism; D018517:Plant Roots / Q000235:genetics / Q000254:growth & development / Q000378:metabolism
chemical_list: D029681:Arabidopsis Proteins