title: Plant Evo-Devo: How Tip Growth Evolved.
abstract: Apical elongation of polarized plant cells (tip growth) occurs in root hairs of flowering plants and in rhizoids of bryophytes. A new report shows that the formation of these cells relies on genes already present in the first land plants.
authors.affiliation: Faculty of Biology, University of Marburg, Marburg, Germany. Electronic address: Stefan.rensing@biologie.uni-marburg.de.
authors.forename: Stefan A
authors.initials: SA
authors.lastname: Rensing
mesh_terms: D005075:Biological Evolution; D018507:Gene Expression Regulation, Developmental / Q000502:physiology; D018506:Gene Expression Regulation, Plant / Q000502:physiology; D018745:Genome, Plant; D063245:Plant Development / Q000235:genetics* / Q000502:physiology*; D018520:Plant Shoots / Q000235:genetics / Q000254:growth & development* / Q000378:metabolism; D010944:Plants / Q000235:genetics* / Q000378:metabolism