title: Finding the right template: RNA Pol IV, a plant-specific RNA polymerase.
abstract: A paradox of RNA-directed transcriptional silencing is that low-level transcription through the silenced locus is observed and may help maintain the silenced state. Discovery of a plant-specific RNA polymerase that directs heterochromatic silencing helps to resolve this issue.
authors.affiliation: Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.
authors.forename: Matthew W
authors.initials: MW
authors.lastname: Vaughn
authors.forename: Robert A
authors.initials: RA
authors.lastname: Martienssen
mesh_terms: D017360:Arabidopsis / Q000201:enzymology* / Q000235:genetics; D002843:Chromatin / Q000378:metabolism; D018744:DNA, Plant / Q000235:genetics* / Q000378:metabolism; D012321:DNA-Directed RNA Polymerases / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D020868:Gene Silencing; D017343:Genes, Plant; D018749:RNA, Plant / Q000235:genetics* / Q000378:metabolism; D034741:RNA, Small Interfering / Q000378:metabolism
chemical_list: D002843:Chromatin; D018744:DNA, Plant; D018749:RNA, Plant; D034741:RNA, Small Interfering; C499181:RNA polymerase IV, Arabidopsis; D012321:DNA-Directed RNA Polymerases