Literature DB >> 2450854

A study of the Ag-staining significance in mitotic NOR's.

R Jimènez1, M Burgos, R Diaz de la Guardia.   

Abstract

The biological significance of nucleoli and mitotic Ag-staining NOR's has been the cause of controversy for several years. Whereas several authors state or assume a direct correlation between transcriptional activity and Ag-staining, others deny this hypothesis or claim a correlation between Ag-staining and decondensation of the NOR chromatin. Our results show that a decondensed state of the NOR chromatin is necessary but not sufficient to permit silver impregnation, allowing us to conclude that transcriptional NOR activity in the previous interphase is additionally required for silver staining.

Entities:  

Mesh：

Substances：

Year:  1988        PMID： 2450854     DOI： 10.1038/hdy.1988.18

Source DB:  PubMed          Journal:  Heredity (Edinb)        ISSN： 0018-067X            Impact factor:   3.821


  11 in total

1.  Modification of wheat rDNA loci by rye B chromosomes: a chromatin organization model.

Authors:  L Morais-Cecilio; M Delgado; R N Jones; W Viegas
Journal:  Chromosome Res       Date:  2000       Impact factor: 5.239

2.  Unusually high amount of inactive ribosomal DNA in the grasshopper Stauroderus scalaris.

Authors:  M D López-León; J Cabrero; J P Camacho
Journal:  Chromosome Res       Date:  1999       Impact factor: 5.239

3.  Characterization of a peg-like terminal NOR structure with light microscopy and high-resolution scanning electron microscopy.

Authors:  Elizabeth Schroeder-Reiter; Andreas Houben; Jürke Grau; Gerhard Wanner
Journal:  Chromosoma       Date:  2005-11-03       Impact factor: 4.316

4.  rRNA gene activity and control of expression mediated by methylation and imprinting during embryo development in wheat x rye hybrids.

Authors:  N Neves; J S Heslop-Harrison; W Viegas
Journal:  Theor Appl Genet       Date:  1995-08       Impact factor: 5.699

5.  Nucleolar dominance in triticales: control by unlinked genes.

Authors:  N Neves; M Silva; J S Heslop-Harrison; W Viegas
Journal:  Chromosome Res       Date:  1997-04       Impact factor: 5.239

6.  Culture of PNKT-4B cells at invasion permissive and restrictive temperatures. I. Chromosomal analysis.

Authors:  J W Williams; M D Smith; D L Carlson; C S Williams; K S Tweedell; R G McKinnell
Journal:  Clin Exp Metastasis       Date:  1990 May-Jun       Impact factor: 5.150

7.  Reprogramming of rye rDNA in triticale during microsporogenesis.

Authors:  M Silva; A Queiroz; N Neves; A Barão; A Castilho; L Morais-Cecílio; W Viegas
Journal:  Chromosome Res       Date:  1995-12       Impact factor: 5.239

8.  Activity banding of human chromosomes as shown by histone acetylation.

Authors:  J W Breneman; P M Yau; R R Swiger; R Teplitz; H A Smith; J D Tucker; E M Bradbury
Journal:  Chromosoma       Date:  1996-07       Impact factor: 4.316

9.  Development-dependent inheritance of 5-azacytidine-induced epimutations in triticale: analysis of rDNA expression patterns.

Authors:  L Amado; R Abranches; N Neves; W Viegas
Journal:  Chromosome Res       Date:  1997-11       Impact factor: 5.239

10.  The developmental stage of inactivation of rye origin rRNA genes in the embryo and endosperm of wheat x rye F1 hybrids.

Authors:  A Castilho; A Queiroz; N Neves; A Barao; M Silva; W Viegas
Journal:  Chromosome Res       Date:  1995-05       Impact factor: 5.239
View more

北京卡尤迪生物科技股份有限公司 © 2022-2023.