Transgenerational epigenetic effects include all processes that have evolved to achieve the
nongenetic determination of phenotype. There has been a long-standing interest in this area …

The evolvement of duplicated gene loci in allopolyploid plants has become the subject of
intensive studies. Most duplicated genes remain active in neoallopolyploids contributing …

Abstract Background and Aims Epigenetics is defined as mechanisms that regulate gene
expression without base sequence alteration. One molecular basis is considered to be DNA …

Ribosomal RNA (rRNA) gene transcription accounts for most of the RNA in prokaryotic and
eukaryotic cells. In eukaryotes, there are hundreds (to thousands) of rRNA genes tandemly …

Nucleolus organizer regions (NORs) are eukaryotic chromosomal loci where ribosomal RNA
(rRNA) genes are clustered, typically in hundreds to thousands of copies. Transcription of …

Nucleolar dominance is a phenomenon in plant and animal hybrids whereby one parental
set of ribosomal RNA (rRNA) genes is transcribed, but the hundreds of rRNA genes …

Nucleolar dominance is a phenomenon in hybrids or allopolyploids in which nucleoli form
on chromosomes inherited from only one of the two parents. The molecular basis for …

Nucleolar dominance (ND) is selective epigenetic silencing of 35-48S rDNA loci. In
allopolyploids, it is frequently manifested at the cytogenetic level by the inactivation of …

In an analysis of 22 of the roughly 100 dispersed 5S rRNA genes in Neurospora crassa, a
methylated 5S rRNA pseudogene, Ψ63, was identified. We characterized the Ψ63 region to …

Bread wheat (or common wheat, Triticum aestivum) is an allohexaploid (AABBDD, 2n= 6x=
42) that arose by hybridization between a cultivated tetraploid wheat T. turgidum (AABB, 2n …