title: Dynamic regulation of Polycomb group activity during plant development.
abstract: Polycomb group (PcG) complexes play important roles in phase transitions and cell fate determination in plants and animals, by epigenetically repressing sets of genes that promote either proliferation or differentiation. The continuous differentiation of new organs in plants, such as leaves or flowers, requires a highly dynamic PcG function, which can be induced, modulated, or repressed when necessary. In this review, we discuss the recent advance in understanding PcG function in plants and focus on the diverse molecular mechanisms that have been described to regulate and counteract PcG activity in Arabidopsis.
authors.affiliation: Institute of Plant Biology & Zürich-Basel Plant Science Centre, University of Zürich, Zollikerstrasse 107, CH-8008 Zürich, Switzerland. marian.bemer@botinst.uzh.ch
authors.forename: Marian
authors.initials: M
authors.lastname: Bemer
authors.forename: Ueli
authors.initials: U
authors.lastname: Grossniklaus
mesh_terms: D017360:Arabidopsis / Q000235:genetics / Q000254:growth & development / Q000378:metabolism; D029681:Arabidopsis Proteins / Q000235:genetics* / Q000378:metabolism; D002454:Cell Differentiation; D049109:Cell Proliferation; D044127:Epigenesis, Genetic; D018507:Gene Expression Regulation, Developmental / Q000235:genetics*; D018506:Gene Expression Regulation, Plant; D006657:Histones / Q000235:genetics / Q000378:metabolism; D009928:Organ Specificity; D063151:Polycomb Repressive Complex 2; D063146:Polycomb-Group Proteins / Q000235:genetics* / Q000378:metabolism; D012097:Repressor Proteins / Q000235:genetics* / Q000378:metabolism
chemical_list: D029681:Arabidopsis Proteins; D006657:Histones; C574170:PRC2 protein, Arabidopsis; D063146:Polycomb-Group Proteins; D012097:Repressor Proteins; D063151:Polycomb Repressive Complex 2