Aberrant imprinting may underlie evolution of parthenogenesis

Olga Kirioukhova, Jubin N. Shah, Danaé S. Larsen, Muhammad Tayyab, Nora E. Mueller, Geetha Govind, Célia Baroux, Michael Federer, Jacqueline Gheyselinck, Philippa J. Barrell, Hong Ma, Stefanie Sprunck, Bruno Huettel, Helen Wallace, Ueli Grossniklaus, Amal J. Johnston

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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.

Original languageEnglish (US)
Article number10626
JournalScientific reports
Volume8
Issue number1
DOIs
StatePublished - Dec 1 2018

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Kirioukhova, O., Shah, J. N., Larsen, D. S., Tayyab, M., Mueller, N. E., Govind, G., Baroux, C., Federer, M., Gheyselinck, J., Barrell, P. J., Ma, H., Sprunck, S., Huettel, B., Wallace, H., Grossniklaus, U., & Johnston, A. J. (2018). Aberrant imprinting may underlie evolution of parthenogenesis. Scientific reports, 8(1), [10626]. https://doi.org/10.1038/s41598-018-27863-7