Biophysics

, Volume 55, Issue 2, pp 324–331

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

  • S. A. Geras’kin
  • J. C. Vanina
  • V. G. Dikarev
  • T. A. Novikova
  • A. A. Oudalova
  • S. I. Spiridonov
Radiobiology and Radioecology

DOI: 10.1134/S0006350910020260

Cite this article as:
Geras’kin, S.A., Vanina, J.C., Dikarev, V.G. et al. BIOPHYSICS (2010) 55: 324. doi:10.1134/S0006350910020260

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.

Key words

ChAPP accidentScotch firallozymespolymorphismheterozygositysegregationphenotypic diversitynull mutations

Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • S. A. Geras’kin
    • 1
  • J. C. Vanina
    • 1
  • V. G. Dikarev
    • 1
  • T. A. Novikova
    • 1
  • A. A. Oudalova
    • 1
  • S. I. Spiridonov
    • 1
  1. 1.Russian Institute of Agricultural Radiology and AgroecologyObninskRussia