Nature Genetics 38, 876 - 878 (2006)
Published online: 2 July 2006; | doi:10.1038/ng1828
Epigenetic asymmetry of imprinted genes in plant gametesJosé F Gutiérrez-Marcos1, Liliana M Costa1, Mauro Dal Prà1, Stefan Scholten2, Erhard Kranz2, Pascual Perez3 & Hugh G Dickinson11
Department of Plant Sciences, University of Oxford, South Parks Road, Oxford OX1 3RB, UK. 2
Biozentrum Klein Flottbek und Botanischer Garten, Entwicklungsbiologie und Biotechnologie, Universität Hamburg, Ohnhorststrasse 18, 22609 Hamburg, Germany. 3
Biogemma, 24 Avenue des Landais, 63170 Aubiére, France.
Correspondence should be addressed to José F Gutiérrez-Marcos jose.gutierrez@plants.ox.ac.uk 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.
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