Chronic radiation exposure as an ecological factor: Hypermethylation and genetic differentiation in irradiated Scots pine populations

Volkova, Polina Yu.; Гераськин, С. А.; Horemans, Nele; Makarenko, Е. S.; Saenen, Eline; Duarte, Gustavo Turqueto; Nauts, Robin; Bondarenko, Vladimir S.; Jacobs, Griet; Voorspoels, Stefan; Kudin, Maksim

doi:10.1016/j.envpol.2017.08.123

Cited by 43 publications

(25 citation statements)

References 59 publications

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“…These results are in agreement with previous work done on zebrafish exposed to depleted uranium, where changes in DNA methylation patterns both at specific restriction sites and across the whole genome, were observed in F0 adults and F1 at the same time as DNA damages (Gombeau et al 2016;Gombeau et al 2017). A transient increased méthylation with the dose rate was also observed in needles of Pinus sylvestris plants collected in radioactively contaminated areas of Belarus (Volkova et al 2018). In contrast no dose dependent changes in total methylation levels were observed for C. bursa pastoris plants sampled in spring 2016 in contaminated areas of FEZ.…”

Section: Evidence For a Role Of Epigenetics In Long-supporting

confidence: 92%

“…A growing number of papers also indicate that exposure to ionising radiation will lead to changes in epigenetic markers (Table 3). For example, scots pine trees present in the most contaminated areas around the Chernobyl nuclear reactor have been found to have hypermethylated DNA, with this hypermethylation directly (Kovalchuk et al 2003) or transiently associated with the radiation dose received (Volkova et al 2018). Further work established that the genomes of young trees planted on contaminated soil showed higher levels of cytosine methylation than trees in uncontaminated soil.…”

Section: Evidence For a Role Of Epigenetics In Long-mentioning

confidence: 99%

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Current evidence for a role of epigenetic mechanisms in response to ionizing radiation in an ecotoxicological context

Horemans

Spurgeon

Lecomte-Pradines

et al. 2019

Environmental Pollution

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Section: Evidence For a Role Of Epigenetics In Long-supporting

confidence: 92%

Section: Evidence For a Role Of Epigenetics In Long-mentioning

confidence: 99%

Current evidence for a role of epigenetic mechanisms in response to ionizing radiation in an ecotoxicological context

Horemans

Spurgeon

Lecomte-Pradines

et al. 2019

Environmental Pollution

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“…Data obtained from studies on these species will be of value to develop further the ICRP system (ICRP, 2017). Organisms representative of the RAPs which were studied included, bees (Raines, 2018), earthworms (Newbold et al, submitted), frogs (Giraudeau et al, 2018;Gombeau et al, submitted) and pine trees (Volkova et al, 2018). In the case of bees, there were previously no effects data available (ICRP, 2009).…”

Section: Key Organismsmentioning

confidence: 99%

Towards solving a scientific controversy – The effects of ionising radiation on the environment

Beresford

Horemans

Copplestone

et al. 2020

Journal of Environmental Radioactivity

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“…Despite the large number of studies assessing genetic effects of environmental radiation on natural populations of rodents (Baker et al, 2017;Matson et al, 2000;Wickliffe et al, 2003) and plants (Geras'kin & Volkova, 2014;Kovalchuk, Dubrova, Arkhipov, Hohn, & Kovalchuk, 2000;Tsyusko, Smith, Oleksyk, Goryanaya, & Glenn, 2006;Volkova et al, 2018), only two studies have considered effects on aquatic biota. Theodorakis and Shugart (1998) studied genetic variation using random amplified polymorphic DNA (RAPD) methods in mosquito fish (Gambusia affinis) inhabiting ponds contaminated with radioactive waste from the US Department of Energy's Oak Ridge facility.…”

Section: Introductionmentioning

confidence: 99%

Chronic radiation exposure at Chernobyl shows no effect on genetic diversity in the freshwater crustacean, Asellus aquaticus thirty years on

Fuller

Ford

Lerebours

et al. 2019

Ecology and Evolution

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Analysis of genetic diversity represents a fundamental component of ecological risk assessments in contaminated environments. Many studies have assessed the genetic implications of chronic radiation exposure at Chernobyl, generally recording an elevated genetic diversity and mutation rate in rodents, plants, and birds inhabiting contaminated areas. Only limited studies have considered genetic diversity in aquatic biota at Chernobyl, despite the large number of freshwater systems where elevated dose rates will persist for many years. Consequently, the present study aimed to assess the effects of chronic radiation exposure on genetic diversity in the freshwater crustacean, Asellus aquaticus, using a genome‐wide SNP approach (Genotyping‐by‐sequencing). It was hypothesized that genetic diversity in A. aquaticus would be positively correlated with dose rate. A. aquaticus was collected from six lakes in Belarus and the Ukraine ranging in dose rate from 0.064 to 27.1 µGy/hr. Genotyping‐by‐sequencing analysis was performed on 74 individuals. A significant relationship between geographical distance and genetic differentiation confirmed the Isolation‐by‐Distance model. Conversely, no significant relationship between dose rate and genetic differentiation suggested no effect of the contamination gradient on genetic differentiation between populations. No significant relationship between five measures of genetic diversity and dose rate was recorded, suggesting that radiation exposure has not significantly influenced genetic diversity in A. aquaticus at Chernobyl. This is the first study to adopt a genome‐wide SNP approach to assess the impacts of environmental radiation exposure on biota. These findings are fundamental to understanding the long‐term success of aquatic populations in contaminated environments at Chernobyl and Fukushima.

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Chronic radiation exposure as an ecological factor: Hypermethylation and genetic differentiation in irradiated Scots pine populations

Cited by 43 publications

References 59 publications

Current evidence for a role of epigenetic mechanisms in response to ionizing radiation in an ecotoxicological context

Current evidence for a role of epigenetic mechanisms in response to ionizing radiation in an ecotoxicological context

Towards solving a scientific controversy – The effects of ionising radiation on the environment

Chronic radiation exposure at Chernobyl shows no effect on genetic diversity in the freshwater crustacean, Asellus aquaticus thirty years on

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