Aberrant imprinting may underlie evolution of parthenogenesis

Scientific Reports
Olga KirioukhovaAmal J Johnston

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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Citations

Mar 7, 2019·Frontiers in Plant Science·Kitty VijverbergM Eric Schranz
Jul 16, 2020·Genes·Armin Scheben, Diego Hojsgaard
Sep 17, 2020·Genes·Zhifen ZhangPeggy Ozias-Akins

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Methods Mentioned

BETA
methylation profiling
flow-cytometry
BS-seq
confocal microscopy

Software Mentioned

Bismark
FastQC
Imaris

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