Russian Journal of Genetics: Applied Research

, Volume 4, Issue 5, pp 421–433 | Cite as

Enzyme polymorphism of an antioxidant system in chronically irradiated Scots pine populations

  • P. Yu. Volkova
  • S. A. Geraskin


This paper studies enzyme polymorphism of the antioxidant system in endosperms and embryos of Scots pine seeds from the areas of the Bryansk region that have been contaminated by the Chernobyl nuclear disaster. The mutation frequency in isozyme loci, the effective number of alleles, and the heterozygosity increase with the increasing dose absorbed in reproductive organs of pine. The experimental populations demonstrate the increased intrapopulation diversity and frequency of occurrence of rare alleles. The genetic differentiation of the studied populations is caused by the increased frequency of occurrence of rare alleles.


Pinus sylvestris Chernobyl accident contamination chronic exposure antioxidant enzymes polymorphism rare alleles null alleles 


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© Pleiades Publishing, Ltd. 2014

Authors and Affiliations

  1. 1.Laboratory for Ecotoxicology and Radiobiology of PlantsRussian Institute of Agricultural Radiology and AgroecologyObninskRussia

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