Ribosomal DNA heterochromatin in plants
Author(s) -
Nuno Neves,
Margarida Delgado,
Manuela Silva,
Ana D. Caperta,
Leonor MoraisCecílio,
Wanda Viegas
Publication year - 2005
Publication title -
cytogenetic and genome research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.571
H-Index - 88
ISSN - 1424-8581
DOI - 10.1159/000082388
Subject(s) - heterochromatin , biology , ribosomal dna , chromatin , ribosomal rna , genetics , evolutionary biology , dna , computational biology , gene , phylogenetics
The aim of this review is to integrate earlier results and recent findings to present the current state-of-the-art vision concerning the dynamic behavior of the ribosomal DNA (rDNA) fraction in plants. The global organization and behavioral features of rDNA make it a most useful system to analyse the relationship between chromatin topology and gene expression patterns. Correlations between several heterochromatin fractions and rDNA arrays demonstrate the heterochromatic nature of the rDNA and reveal the importance of the genomic environment and of developmental controls in modulating its dynamics.
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