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Aberrant imprinting may underlie evolution of parthenogenesis

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author Kirioukhova Olga, Shah Jubin N., Larsen Danaé S., Tayyab Muhammad, Mueller Nora E., Govind Geetha, Baroux Célia, Federer Michael, Gheyselinck Jacqueline, Barrell Philippa J., Ma Hong, Sprunck Stefanie, Huettel Bruno, Wallace Helen, Grossniklaus Ueli, Johnston Amal J.,
Project The Genetic and Molecular Basis of Gametogenesis and Maternal Effects in Arabidopsis
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Original article (peer-reviewed)

Journal Scientific Reports
Volume (Issue) 8(1)
Page(s) 10626 - 10626
Title of proceedings Scientific Reports
DOI 10.1038/s41598-018-27863-7

Open Access

URL http://doi.org/10.1038/s41598-018-27863-7
Type of Open Access Publisher (Gold Open Access)

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.
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