Aberrant imprinting may underlie evolution of parthenogenesis

Kirioukhova, Olga and Shah, Jubin N. and Larsen, Danae S. and Tayyab, Muhammad and Mueller, Nora E. and Govind, Geetha and Baroux, Celia and Federer, Michael and Gheyselinck, Jacqueline and Barrell, Philippa J. and Ma, Hong and Sprunck, Stefanie and Huettel, Bruno and Wallace, Helen and Grossniklaus, Ueli and Johnston, Amal J. (2018) Aberrant imprinting may underlie evolution of parthenogenesis. SCIENTIFIC REPORTS, 8: 10626. ISSN 2045-2322,

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Abstract

Genomic imprinting confers parent-of-origin-specific gene expression, thus non-equivalent and complementary function of parental genomes. As a consequence, genomic imprinting poses an epigenetic barrier to parthenogenesis in sexual organisms. We report aberrant imprinting in Boechera, a genus in which apomicts evolved from sexuals multiple times. Maternal activation of a MADS-box gene, a homolog of which is imprinted and paternally expressed in the sexual relative Arabidopsis, is accompanied by locus-specific DNA methylation changes in apomicts where parental imprinting seems to be relaxed.

Item Type: Article
Uncontrolled Keywords: SEED DEVELOPMENT; ARABIDOPSIS-THALIANA; DNA METHYLATION; EXPRESSION; HYBRIDIZATION; APOMIXIS; PHERES1; PLANTS; FERTILIZATION; BRASSICACEAE;
Subjects: 500 Science > 580 Botanical sciences
Divisions: Biology, Preclinical Medicine > Institut für Pflanzenwissenschaften > Lehrstuhl für Zellbiologie und Pflanzenphysiologie
Depositing User: Dr. Gernot Deinzer
Date Deposited: 06 Mar 2020 14:17
Last Modified: 06 Mar 2020 14:17
URI: https://pred.uni-regensburg.de/id/eprint/14237

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