The effect of γ-radiation on induction of the hobo element transposition in Drosophila melanogaster

The effect of γ-radiation on induction of the hobo element transposition in Drosophila melanogaster The transposition frequency of the hobo mobile element in four successive generations of Drosophila melanogaster strain y 2-717 after an acute γ-irradiation with a dose of 30 Gr amounted to 7.5 × 10−4 per site per genome per generation. Under the same conditions, PCR analysis of the genomic DNA of y 2-717 flies detected new variants of defective hobo sequence. No changes in the hobo localization and PCR products compared with the control were detected in the case of single irradiation with doses of 3 and 30 Gr. The localizations of hobo element on polytene chromosomes of y 2-717 strain did not change during 11 generations after five exposures of flies to 30 Gr. Irradiation of a highly unstable D. melanogaster strain y +743 did not increase the number of families with mutant progeny, yet increased the total number of mutant descendants almost twofold, from 5 to 9%. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

The effect of γ-radiation on induction of the hobo element transposition in Drosophila melanogaster

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2006 by Pleiades Publishing, Inc.
Subject
Biomedicine; Microbial Genetics and Genomics; Animal Genetics and Genomics; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795406060056
Publisher site
See Article on Publisher Site

Abstract

The transposition frequency of the hobo mobile element in four successive generations of Drosophila melanogaster strain y 2-717 after an acute γ-irradiation with a dose of 30 Gr amounted to 7.5 × 10−4 per site per genome per generation. Under the same conditions, PCR analysis of the genomic DNA of y 2-717 flies detected new variants of defective hobo sequence. No changes in the hobo localization and PCR products compared with the control were detected in the case of single irradiation with doses of 3 and 30 Gr. The localizations of hobo element on polytene chromosomes of y 2-717 strain did not change during 11 generations after five exposures of flies to 30 Gr. Irradiation of a highly unstable D. melanogaster strain y +743 did not increase the number of families with mutant progeny, yet increased the total number of mutant descendants almost twofold, from 5 to 9%.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Jun 16, 2006

References

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