Analysis of Y chromosome nucleolar organizer mutants in Drosophila melanogaster

Five Y chromosome nucleolar organizer (Y-NO) mutants were analyzed with respect to their rRNA gene numbers, phenotypes and additivity tests with other NO mutants. Four of these are indicative of a class of mutants in which most of the rRNA. The other mutant has 80 genes, however, lethality and addit...

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Veröffentlicht in:	Biochemical and biophysical research communications 1982-01, Vol.104 (2), p.778-784
Hauptverfasser:	Gandhi, V.V, Sharp, Z.D, Procunier, J.D
Format:	Artikel
Sprache:	eng
Schlagworte:	animal breeding animal genetics Animals arthropods Cell Nucleolus - ultrastructure Drosophila melanogaster Drosophila melanogaster - genetics entomology Female Genes, Lethal Larva Male Mutation Nucleic Acid Hybridization Ovum Pupa Sex Chromosomes Y Chromosome
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Zusammenfassung:	Five Y chromosome nucleolar organizer (Y-NO) mutants were analyzed with respect to their rRNA gene numbers, phenotypes and additivity tests with other NO mutants. Four of these are indicative of a class of mutants in which most of the rRNA. The other mutant has 80 genes, however, lethality and additivity tests suggest that many if not all of these rRNA genes are non-functional. The basis for the observed suppression of rRNA genes of the Y-NO region is discussed.
ISSN:	0006-291X 1090-2104