Genetic Control of the Formation and Reorganization of Chromocenter in Drosophila

Genetic Control of the Formation and Reorganization of Chromocenter in Drosophila The chromocenter integrates the entire Drosophilagenome into a unit. The formation and reorganization of chromocenter are genetically determined. Currently, several mutations affecting the structure of chromocenter have been described. In this work, I present evidence on the time of the formation and reorganization of chromocenter in mitotic and meiotic cells of females of the wild type and the ff16mutant line obtained by selection of mosaic clones produced from mitotic recombination of chromosomes in the dividing embryo cells. In females homozygous for this mutation, the second stage of the formation of chromocenter (joining two groups of nonhomologous chromosomes X-4 and 2-3 into a united ring structure =X=2=3=4=) is disturbed. The differences between the mitotic and meiotic reorganization of chromocenter and the role of chromocenter in the control of chromosome segregation are discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Genetic Control of the Formation and Reorganization of Chromocenter in Drosophila

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2001 by MAIK “Nauka/Interperiodica”
Subject
Biomedicine; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1023/A:1016721531557
Publisher site
See Article on Publisher Site

Abstract

The chromocenter integrates the entire Drosophilagenome into a unit. The formation and reorganization of chromocenter are genetically determined. Currently, several mutations affecting the structure of chromocenter have been described. In this work, I present evidence on the time of the formation and reorganization of chromocenter in mitotic and meiotic cells of females of the wild type and the ff16mutant line obtained by selection of mosaic clones produced from mitotic recombination of chromosomes in the dividing embryo cells. In females homozygous for this mutation, the second stage of the formation of chromocenter (joining two groups of nonhomologous chromosomes X-4 and 2-3 into a united ring structure =X=2=3=4=) is disturbed. The differences between the mitotic and meiotic reorganization of chromocenter and the role of chromocenter in the control of chromosome segregation are discussed.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Oct 16, 2004

References

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