Aberrant imprinting may underlie evolution of parthenogenesis
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Author(s)
Kirioukhova, O
Shah, JN
Larsen, DS
Tayyab, M
Mueller, NE
Govind, G
Baroux, C
Federer, M
Gheyselinck, J
Barrell, PJ
Ma, H
Sprunck, S
Huettel, B
Wallace, H
Grossniklaus, U
Johnston, AJ
Griffith University Author(s)
Year published
2018
Metadata
Show full item recordAbstract
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.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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Journal Title
Scientific Reports
Volume
8
Issue
1
Copyright Statement
© The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International
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Subject
Plant biology