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

doi:10.1038/s41598-018-27863-7

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 language	English (US)
Article number	10626
Journal	Scientific reports
Volume	8
Issue number	1
DOIs	https://doi.org/10.1038/s41598-018-27863-7
State	Published - 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), Article 10626. https://doi.org/10.1038/s41598-018-27863-7

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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.",

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AU - Kirioukhova, Olga

AU - Shah, Jubin N.

AU - Larsen, Danaé S.

AU - Tayyab, Muhammad

AU - Mueller, Nora E.

AU - Govind, Geetha

AU - Baroux, Célia

AU - Federer, Michael

AU - Gheyselinck, Jacqueline

AU - Barrell, Philippa J.

AU - Ma, Hong

AU - Sprunck, Stefanie

AU - Huettel, Bruno

AU - Wallace, Helen

AU - Grossniklaus, Ueli

AU - Johnston, Amal J.

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AB - 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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Aberrant imprinting may underlie evolution of parthenogenesis

Abstract

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