PMID: 11931224Apr 5, 2002Paper

Genomic imprinting during seed development

Advances in Genetics
Célia BarouxUeli Grossniklaus

Abstract

Genomic imprinting allows parent-of-origin specific control over gene expression. Although imprinted genes (or entire chromosomes) are homologous sequences that can be inherited from either parent, they are differentially marked by a heritable epigenetic modification (imprint), which can condition their behavior in term of gene expression. Imprinting-based regulation of entire chromosomes is observed in both insects (paternal genome elimination) and mammals (nonrandom X inactivation). Until recently, it was unknown whether plants possessed a similar epigenetic system discriminating between homologous chromosomes from either paternal or maternal origin. There is now experimental evidence for a genome-wide imprinting phenomenon during seed development in Arabidopsis. Genomic imprinting at the gene (or locus) level is observed in both mammals and flowering plants. In maize, only a few allelic variants of several nonessential genes expressed in the endosperm are imprinted. In Arabidopsis, gene-specific imprinting has recently been demonstrated for the MEDEA (and FIS2) gene, which is essential for normal seed development. Unlike the imprinted maize genes, so far all tested MEA alleles are subjected to regulation by imprinting. MEDEA...Continue Reading

Citations

Nov 18, 2003·Annual Review of Genetics·Elena de la Casa-Esperón, Carmen Sapienza
Sep 17, 2004·Nature·Zachary Lippman, Rob Martienssen
Mar 13, 2014·Heredity·J B Wolf, Y Brandvain
Jun 4, 2004·Nature Biotechnology·Charles SpillaneUeli Grossniklaus
Aug 25, 2005·Cold Spring Harbor Symposia on Quantitative Biology·G BraidottiD P Barlow
May 19, 2017·Epigenetics & Chromatin·Paul R HillmanScott V Dindot
Dec 21, 2002·The Plant Journal : for Cell and Molecular Biology·Olivier LeblancMartha Hernandez
Sep 25, 2003·Annual Review of Plant Biology·Anna M Koltunow, Ueli Grossniklaus
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Jan 14, 2003·Seminars in Cell & Developmental Biology·José C Reyes, Ueli Grossniklaus
Jan 21, 2004·Current Opinion in Plant Biology·Andrea SteimerUeli Grossniklaus
Jun 9, 2004·Developmental Biology·Karl-Hartmut von Wangenheim, Hans-Peter Peterson
Jan 24, 2004·Science·Frederic Berger

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