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Bypassing genomic imprinting allows seed development

Author

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  • Moritz K. Nowack

    (University group at the Max Planck Institute for Plant Breeding Research, Max-Delbrück-Laboratorium, University of Cologne, Carl-von-Linné-Weg 10, D-50829 Cologne, Germany)

  • Reza Shirzadi

    (University of Oslo, PO Box 1041 Blindern, N-0316 Oslo, Norway)

  • Nico Dissmeyer

    (University group at the Max Planck Institute for Plant Breeding Research, Max-Delbrück-Laboratorium, University of Cologne, Carl-von-Linné-Weg 10, D-50829 Cologne, Germany)

  • Andreas Dolf

    (Institute of Molecular Medicine and Experimental Immunology, Sigmund-Freud-Straβe 25, D-53105 Bonn, Germany)

  • Elmar Endl

    (Institute of Molecular Medicine and Experimental Immunology, Sigmund-Freud-Straβe 25, D-53105 Bonn, Germany)

  • Paul E. Grini

    (University of Oslo, PO Box 1041 Blindern, N-0316 Oslo, Norway)

  • Arp Schnittger

    (University group at the Max Planck Institute for Plant Breeding Research, Max-Delbrück-Laboratorium, University of Cologne, Carl-von-Linné-Weg 10, D-50829 Cologne, Germany)

Abstract

The seeds of success One factor in the success of the flowering plants (angiosperms) may be the development of the embryo along with a second fertilization product, the endosperm. Two rival explanations for the evolutionary origin of the endosperm were proposed over a century ago, and have since divided the field of plant development. Nowack et al. present new evidence that favours one of the hypotheses, that of eminent botanist Eduard Strasburger. Seeds from an Arabidopsis mutant containing a maternally derived diploid endosperm, instead of a biparental triploid endosperm, are found able to develop into viable plants. This argues for female reproductive structures as the source for the endosperm, and against a requirement for genomic imprinting, where an allele is expressed dependent on which parent contributes it.

Suggested Citation

  • Moritz K. Nowack & Reza Shirzadi & Nico Dissmeyer & Andreas Dolf & Elmar Endl & Paul E. Grini & Arp Schnittger, 2007. "Bypassing genomic imprinting allows seed development," Nature, Nature, vol. 447(7142), pages 312-315, May.
    • Handle: RePEc:nat:nature:v:447:y:2007:i:7142:d:10.1038_nature05770
    DOI: 10.1038/nature05770
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    Cited by:

    1. Yanchun Li & Cintia M Coelho & Tian Liu & Song Wu & Jiasheng Wu & Yanru Zeng & Youchun Li & Brenda Hunter & Ricardo A Dante & Brian A Larkins & Rongling Wu, 2008. "A Statistical Model for Estimating Maternal-Zygotic Interactions and Parent-of-Origin Effects of QTLs for Seed Development," PLOS ONE, Public Library of Science, vol. 3(9), pages 1-12, September.

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