Term Name:	rDNA heterochromatin
Synonyms:	nuclear rDNA heterochromatin, ribosomal DNA heterochromatin, ribosomal DNA heterochromatin of cell nucleus, ribosomal DNA heterochromatin of nucleus
Definition:	A region of heterochromatin located at the rDNA repeats in a chromosome.
Ontology:	GO: Cellular Component [GO:0033553]    QuickGO    AmiGO