Article
Changes in 5S rDNA chromatin organization and transcription during heterochromatin establishment in Arabidopsis.
The Plant cell - 1 Dec 2003
Mathieu Olivier, Jasencakova Zuzana, Vaillant Isabelle, Gendrel Anne-Valerie, Colot Vincent, Schubert Ingo, Tourmente Sylvette
Abstract excerpt
In the Arabidopsis accession Columbia, 5S rDNA is located in the pericentromeric heterochromatin of chromosomes 3, 4, and 5. Both a major and some minor 5S rRNA species are expressed from chromosomes 4 and 5, whereas the genes on chromosome 3 are not transcribed. Here, we show that 5S rDNA methylation is reduced in 2-day-old seedlings versus 4-day-old or older aerial plant tissues, and the minor 5S rRNA species...
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