Tissue culture-induced transpositional activity of mPing is correlated with cytosine methylation in rice.

ABSTRACT:

Background

mPing is an endogenous MITE in the rice genome, which is quiescent under normal conditions but can be induced towards mobilization under various stresses. The cellular mechanism responsible for modulating the activity of mPing remains unknown. Cytosine methylation is a major epigenetic modification in most eukaryotes, and the primary function of which is to serve as a genome defense system including taming activity of transposable elements (TEs). Given that tissue-culture is capable of inducing both methylation alteration and mPing transposition in certain rice genotypes, it provides a tractable system to investigate the possible relationship between the two phenomena.

Results

mPing transposition and cytosine methylation alteration were measured in callus and rege

SUBMITTER: Ngezahayo F 

PROVIDER: S-EPMC2715021 | biostudies-literature | 2009 Jul

REPOSITORIES: biostudies-literature