Article
Natural variation in nucleolar dominance reveals the relationship between nucleolus organizer chromatin topology and rRNA gene transcription in Arabidopsis.
Proceedings of the National Academy of Sciences of the United States of America - 30 Sept 2003
Pontes Olga, Lawrence Richard J, Neves Nuno, Silva Manuela, Lee Jae-Hyeok, Chen Z Jeffrey, Viegas Wanda, Pikaard Craig S
Abstract excerpt
In genetic hybrids, nucleolus formation on chromosomes inherited from only one parent is the epigenetic phenomenon, nucleolar dominance. By using Arabidopsis suecica, the allotetraploid hybrid of Arabidopsis thaliana and Arabidopsis arenosa, natural variation in nucleolar dominance was found to occur, providing a unique opportunity to examine homologous nucleolus organizer regions (NORs) in their active and...
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