Subnuclear partitioning of rRNA genes between the nucleolus and nucleoplasm reflects alternative epiallelic states.

@article{Pontvianne2013SubnuclearPO,
  title={Subnuclear partitioning of rRNA genes between the nucleolus and nucleoplasm reflects alternative epiallelic states.},
  author={Fr{\'e}d{\'e}ric Pontvianne and Todd Blevins and Chinmayi Chandrasekhara and Iva Mozgov{\'a} and Christiane A. Hassel and Olga M Pontes and Sarah Tucker and Petr Mokro{\vs} and Veronika Muchov{\'a} and Jiř{\'i} Fajkus and Craig S. Pikaard},
  journal={Genes & development},
  year={2013},
  volume={27 14},
  pages={
          1545-50
        }
}
Eukaryotes can have thousands of 45S ribosomal RNA (rRNA) genes, many of which are silenced during development. Using fluorescence-activated sorting techniques, we show that active rRNA genes in Arabidopsis thaliana are present within sorted nucleoli, whereas silenced rRNA genes are excluded. DNA methyltransferase (met1), histone deacetylase (hda6), or chromatin assembly (caf1) mutants that disrupt silencing abrogate this nucleoplasmic-nucleolar partitioning. Bisulfite sequencing data indicate… CONTINUE READING

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