Transgene-induced gene silencing is not affected by a change in ploidy level.

ABSTRACT:

Background

Whole genome duplication, which results in polyploidy, is a common feature of plant populations and a recurring event in the evolution of flowering plants. Polyploidy can result in changes to gene expression and epigenetic instability. Several epigenetic phenomena, occurring at the transcriptional or post-transcriptional level, have been documented in allopolyploids (polyploids derived from species hybrids) of Arabidopsis thaliana, yet findings in autopolyploids (polyploids derived from the duplication of the genome of a single species) are limited. Here, we tested the hypothesis that an increase in ploidy enhances transgene-induced post-transcriptional gene silencing using autopolyploids of A. thaliana.

Methodology/principal findings

Diploid and tetraploid indivi

SUBMITTER: Pignatta D 

PROVIDER: S-EPMC2516530 | biostudies-literature | 2008 Aug

REPOSITORIES: biostudies-literature