title: Complete replication of DNA in polytene nuclei of salivary glands ofDrosophila melanogaster.
abstract: Combined cytophotometric and autoradiographic experiments are performed on individual polytene salivary gland nuclei of X/X-female and X/Y-male larvae ofDrosophila melanogaster, DNA measurements of unlabeled nuclei reveal complete douplings of all 4C DNA quantity during polytenization. These new data do not agree with the hypothesis of heterochromatic underreplication.
authors.affiliation: Institut für Entwicklungsphysiologie der Universität zu Köln, Gyrhofstraße 17, 5000, Köln 41 (Lindenthal), Germany.
authors.forename: Leonore
authors.initials: L
authors.lastname: Dennhöfer
keywords: DNA replication; Drosophila melanogaster; Polytene salivary gland nuclei