siRNAs and DNA methylation: seedy epigenetics.

Abstract:

:To understand how DNA sequence is translated to phenotype we must understand the epigenetic features that regulate gene expression. Recent research illuminates the complex interactions between DNA methylation, small RNAs, silencing of transposable elements, and genomic imprinting in the Arabidopsis (Arabidopsis thaliana) seed. These studies suggest that transposable elements reactivated in specific cells of the gametophyte and seed might enhance silencing of transposable elements in the germline and embryo. By sacrificing genomic integrity these cells might make an epigenetic rather than genetic contribution to the progeny. This research could have implications for interspecies hybridization, the evolution of genomic imprinting, and epigenetic communication from plant to progeny.

journal_name

Trends Plant Sci

journal_title

Trends in plant science

authors

Mosher RA,Melnyk CW

doi

10.1016/j.tplants.2010.01.002

subject

Has Abstract

pub_date

2010-04-01 00:00:00

pages

204-10

issue

4

eissn

1360-1385

issn

1878-4372

pii

S1360-1385(10)00005-1

journal_volume

15

pub_type

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