M. Gehring

Imprinting and DNA methylation in water lily endosperm: implications for seed evolution

This study examines DNA methylation and genetic imprinting in water lily endosperm, finding maternally-expressed imprinted genes and differential DNA methylation are ancestral traits.

Somatic DNA demethylation generates tissue-specific methylation states and impacts flowering time

This study shows that somatic DNA demethylation by the DME family generates tissue-specific methylation states and affects flowering time in plants.

RNA Pol IV has antagonistic parent-of-origin effects on Arabidopsis endosperm

The paper shows RNA Pol IV has opposing effects on endosperm gene expression depending on parental origin in Arabidopsis.

Single nucleus analysis of Arabidopsis seeds reveals new cell types and imprinting dynamics

The paper uses single-nucleus RNA-sequencing to analyze Arabidopsis seeds, identifying new cell types and showing variation in imprinting dynamics across cell cycle phases and endosperm regions.

Water lily (Nymphaea thermarum) draft genome reveals variable genomic signatures of ancient vascular cambium losses

The paper sequences the water lily Nymphaea thermarum genome and compares it to other plants to identify gene loss and divergence patterns associated with vascular cambium loss.

Paternally-acting canonical RNA-directed DNA methylation pathway genes sensitize Arabidopsis endosperm to paternal genome dosage

The paper shows that paternal RdDM pathway activity determines viability of paternal excess seeds in Arabidopsis, with transcriptional buffering increasing maternal allele expression and repressing paternal alleles.

A variably imprinted epiallele impacts seed development

This study shows that epigenetic variation alone can cause imprinting variation and affect seed development phenotypes in Arabidopsis thaliana.

A Small RNA Pathway Mediates Global Allelic Dosage In Endosperm

The paper shows that RNA Pol IV mediates a maternal:paternal transcriptome ratio in Arabidopsis endosperm, with disruption causing maternally biased expression.