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- W2000508984 abstract "Drosophila individuals were collected in autumn 2006 from sites in Ukraine with different levels of radioactive contamination. Flies were sampled near the cooling pond of Chernobyl Nuclear Power Plant with a radioactive background of 2100 µR/h, the city of Chernobyl (100 µ R/h), in Polesskoe (50 µR/h), Lubny (16 µR/h), Uman (16 µR/h), Piryatin (15 µR/h), Odessa (14 µR/h) and Kyiv (13 µR/h). The fecundity, scored as the average number of offspring produced by F1 females, was obtained for each population. Fecundity varied from 19.06±3.87 (Chernobyl cooling pond) to 42.93±3.77 (Polesskoe). The lowest fecundity was seen in the populations from the most radioactively contaminated sites. An exception was Polesskoe, whose larvae fed on substrate derived from less polluted areas. There was no relationship between fecundity and background contamination levels for populations from the relatively uncontaminated sites, as they varied by only 3 µR/h. Laboratory strains during 20 generations lived under chronic exposure (dose rate 1,2 12 mR/h ) in terms of mini ?-field. The doses accumulated for 20 generation are in interval 0,1- 1 Gy. Fecundity index in control of Conton-S strain was 60,54±1,9, higher than in natural populations. At the same time the fecundity index for Conton-S after chronic exposure with dose rate 12mR/h decline to 24,87±1,36. Active mobile genetic elements are known to cause gonad reduction in Drosophilids. Gonad reduction varied from 0 (which cannot be considered, as it less than 1%) to 14±0.5% in our populations. These levels of gonad reduction suggest mobile genetic elements are not active in any of the studied populations. Therefore the observed decrease in fecundity in populations from the city of Chernobyl and near the cooling pond of the Chernobyl reactor is not likely related to any elevated activity of mobile elements." @default.
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- W2000508984 date "2008-01-01" @default.
- W2000508984 modified "2023-09-27" @default.
- W2000508984 title "Reproductive success of Drosophila melanogaster: natural populations from radioactively contaminated territori" @default.
- W2000508984 doi "https://doi.org/10.1051/radiopro:2008713" @default.
- W2000508984 hasPublicationYear "2008" @default.
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