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Article

Magnification in Drosophila: evidence for an inducible rDNA-specific recombination system.

Molecular & general genetics : MGG - 1 Feb 1994

Komma D J, Atwood K C

Abstract excerpt

An experiment is described that provides evidence for an exchange mechanism to explain the increase in ribosomal gene number that occurs during bobbed magnification. We show that bobbed and bobbed-lethal alleles do not magnify in closed X chromosomes, but that a spontaneous ring opening restores normal magnification. The results provide strong evidence that the elementary magnifying event is unequal sister...

Topics

Alleles
Animals
DNA, Ribosomal
Drosophila melanogaster
Female
Gene Amplification
Male
Recombination, Genetic
Ribosomes
Ring Chromosomes
Sister Chromatid Exchange

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

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Identifiers

PMID: 8107680
DOI: 10.1007/BF00280422

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 29 Aug 2026. Prepared record publication-8107680-2026-08-29.1. Manifest publication-graph-cohort-2026-08-29.1.

Source receipt: PubMed via Helena Literature Corpus, retrieved 29 Aug 2026.

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