Estimation of the levels of radiation-induced P-element transposition in Drosophila melanogaster experimental populations and laboratory strains

When experimental P + M populations were exposed to chronic γ-irradiation (0.31 mGy/h), the highest instability level of the singed-weak ( sn w ) locus was observed in F 3 –F 10 with a subsequent decrease and stabilization of the mutation rate. The sn w mutation rate was within the range of spontane...

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Bibliographic Details
Published in:Russian journal of genetics 2012-04, Vol.48 (4), p.473-476
Main Authors: Zainullin, V. G., Yushkova, E. A.
Format: Article
Language:English
Subjects:
Animal Genetics and Genomics
Biomedical and Life Sciences
Biomedicine
Human Genetics
Microbial Genetics and Genomics
Short Communications
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Summary:When experimental P + M populations were exposed to chronic γ-irradiation (0.31 mGy/h), the highest instability level of the singed-weak ( sn w ) locus was observed in F 3 –F 10 with a subsequent decrease and stabilization of the mutation rate. The sn w mutation rate was within the range of spontaneous variation in conditions of P-M hybrid dysgenesis and irradiation of males of the Harwich laboratory strain with active P elements at 1.61 mGy/h. The instability of the sn w locus was significantly higher at lower dose rates (0.23 and 0.31 mGy/h), suggesting a nonlinear dose-effect relationship.
ISSN:1022-7954
1608-3369
DOI:10.1134/S1022795412040163