Tissue culture-induced genetic and epigenetic alterations in rice pure-lines, F1 hybrids and polyploids.

ABSTRACT:

Background

Genetic and epigenetic alterations can be invoked by plant tissue culture, which may result in heritable changes in phenotypes, a phenomenon collectively termed somaclonal variation. Although extensive studies have been conducted on the molecular nature and spectrum of tissue culture-induced genomic alterations, the issue of whether and to what extent distinct plant genotypes, e.g., pure-lines, hybrids and polyploids, may respond differentially to the tissue culture condition remains poorly understood.

Results

We investigated tissue culture-induced genetic and epigenetic alterations in a set of rice genotypes including two pure-lines (different subspecies), a pair of reciprocal F1 hybrids parented by the two pure-lines, and a pair of reciprocal tetraploids resulte

SUBMITTER: Wang X 

PROVIDER: S-EPMC3648424 | biostudies-literature | 2013 May

REPOSITORIES: biostudies-literature