title: Epigenetic asymmetry of imprinted genes in plant gametes.
abstract: Plant imprinted genes show parent-of-origin expression in seed endosperm, but little is known about the nature of parental imprints in gametes before fertilization. We show here that single differentially methylated regions (DMRs) correlate with allele-specific expression of two maternally expressed genes in the seed and that one DMR is differentially methylated between gametes. Thus, plants seem to have developed similar strategies as mammals to epigenetically mark imprinted genes.
authors.affiliation: Department of Plant Sciences, University of Oxford, South Parks Road, Oxford OX1 3RB, UK. jose.gutierrez@plants.ox.ac.uk
authors.forename: José F
authors.initials: JF
authors.lastname: Gutiérrez-Marcos
authors.forename: Liliana M
authors.initials: LM
authors.lastname: Costa
authors.forename: Mauro
authors.initials: M
authors.lastname: Dal Prà
authors.forename: Stefan
authors.initials: S
authors.lastname: Scholten
authors.forename: Erhard
authors.initials: E
authors.lastname: Kranz
authors.forename: Pascual
authors.initials: P
authors.lastname: Perez
authors.forename: Hugh G
authors.initials: HG
authors.lastname: Dickinson
mesh_terms: D018899:CpG Islands; D019175:DNA Methylation; D018744:DNA, Plant / Q000737:chemistry / Q000235:genetics; D044127:Epigenesis, Genetic; D018506:Gene Expression Regulation, Plant; D018392:Genomic Imprinting; D005854:Germ Cells / Q000378:metabolism; D010944:Plants / Q000196:embryology / Q000235:genetics*; D030821:Plants, Genetically Modified; D003313:Zea mays / Q000235:genetics
chemical_list: D018744:DNA, Plant