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Genetic variability in Scotch pine populations of the Bryansk Region radioactively contaminated in the Chernobyl accident

  • Radiobiology and Radioecology
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Abstract

The method of isozyme analysis of megagametophytes is used to estimate the genetic variability in Scotch pine populations (Pinus sylvestris L.) of the Bryansk Region sites with contrasting levels of radioactive contamination (soil 137Cs, 60 to 17 800 Bq/kg) resulting from the Chernobyl accident. All indices of genetic variability (heterozygosity, frequency of polymorphic loci, Zhivotovskii index) and frequencies of loss-of-function enzyme mutations increase with the dose absorbed by plant generative organs. The data show that high mutability is intrinsic for seeds of these pine trees, and genetic diversity in the populations is essentially conditioned by radiation exposure.

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Authors and Affiliations

  1. Russian Institute of Agricultural Radiology and Agroecology, Obninsk, 249020, Russia

    S. A. Geras’kin, J. C. Vanina, V. G. Dikarev, T. A. Novikova, A. A. Oudalova & S. I. Spiridonov

Authors
  1. S. A. Geras’kin
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  2. J. C. Vanina
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  3. V. G. Dikarev
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  4. T. A. Novikova
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  5. A. A. Oudalova
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  6. S. I. Spiridonov
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Corresponding author

Correspondence to S. A. Geras’kin.

Additional information

Original Russian Text © S.A. Geras’kin, J.C. Vanina, V.G. Dikarev, T.A. Novikova, A.A. Oudalova, S.I. Spiridonov, 2009, published in Radiatsionnaya Biologiya. Radioekologiya, 2009, Vol. 49, No. 2, pp. 136–146.

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Geras’kin, S.A., Vanina, J.C., Dikarev, V.G. et al. Genetic variability in Scotch pine populations of the Bryansk Region radioactively contaminated in the Chernobyl accident. BIOPHYSICS 55, 324–331 (2010). https://doi.org/10.1134/S0006350910020260

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  • DOI: https://doi.org/10.1134/S0006350910020260

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