Extent of polyteny in the pericentric heterochromatin of polytene chromosomes of pseudonurse cells of otu (ovarian tumor) mutants of Drosophila melanogaster

descriptionPublicationkeyboard_double_arrow_right Article 01 Aug 1993 English Publisher:Springer Science and Business Media LLCJournal:Molecular and General Genetics MGG, volume 240, pages 273-276 (issn: 0026-8925, eissn: 1432-1874,

Authors: N I, Mal'ceva; I F, Zhimulev;

doi: 10.1007/bf00277066

pmid: 8355659

Extent of polyteny in the pericentric heterochromatin of polytene chromosomes of pseudonurse cells of otu (ovarian tumor) mutants of Drosophila melanogaster

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Abstract

In the polytene nuclei of germ-line cells (ovarian pseudonurse cells) of Drosophila melanogaster females mutant for otu11 (ovarian tumor), the pericentric heterochromatin is much more abundant than in somatic salivary gland cells. This is due to the degree of heterochromatin compaction (and consequently the level of underreplication) being lower in the nurse cells than in the salivary gland cells. The lower level of compaction probably results in a very low degree of position effect gene inactivation in the ovarian nurse cells.

Related Organizations

Russian Academy of Sciences
Russian Federation
Novosibirsk State University
Russian Federation
Siberian Branch of the Russian Academy of Sciences
Russian Federation
Institute of Cytology and Genetics
Russian Federation
Department of Biological Sciences
Russian Federation

Keywords

Drosophila melanogaster, Heterochromatin, Mutation, Ovary, Animals, Female, Chromosome Banding

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