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Postembryonic establishment of megabase-scale gene silencing in nucleolar domin...
Silva, Manuela; Viegas, Wanda; Pontes, Olga; Lawrence, Richard; Preuss, Sasha; Costa-Nunes, Pedro; Earley, Keith; Neves, Nuno; Pikaard, CraigNucleolar dominance is an epigenetic phenomenon in plant and animal genetic hybrids that describes the expression of 45S ribosomal RNA genes (rRNA genes) inherited from only one progenitor due to the silencing of the other progenitor’s rRNA genes. rRNA genes are tandemly arrayed at nucleolus organizer regions (NORs) that span millions of basepairs, thus gene silencing in nucleolar dominance occurs on a scale se...
Data: 2007
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Origem: Repositório da UTL
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