title: RNA polymerase IV defines epigenetic variation in maize.
authors.affiliation: jlockhart@aspb.org
authors.forename: Jennifer
authors.initials: J
authors.lastname: Lockhart
mesh_terms: D012321:DNA-Directed RNA Polymerases / Q000378:metabolism*; D044127:Epigenesis, Genetic; D018506:Gene Expression Regulation, Plant; D018749:RNA, Plant / Q000378:metabolism*; D003313:Zea mays / Q000201:enzymology* / Q000235:genetics*
chemical_list: D018749:RNA, Plant; D012321:DNA-Directed RNA Polymerases