DNA methylation dynamics and MET1a-like gene expression changes during stress-induced pollen reprogramming to embryogenesis.

ABSTRACT: Stress-induced plant cell reprogramming involves changes in global genome organization, being the epigenetic modifications key factors in the regulation of genome flexibility. DNA methylation, accomplished by DNA methyltransferases, constitutes a prominent epigenetic modification of the chromatin fibre which is locked in a transcriptionally inactive conformation. Changes in DNA methylation accompany the reorganization of the nuclear architecture during plant cell differentiation and proliferation. After a stress treatment, in vitro-cultured microspores are reprogrammed and change their gametophytic developmental pathway towards embryogenesis, the process constituting a useful system of reprogramming in isolated cells for applied and basic research. Gene expression driven by developmental a

SUBMITTER: Solis MT 

PROVIDER: S-EPMC3504494 | biostudies-literature | 2012 Nov

REPOSITORIES: biostudies-literature