[The genetic effect in Pinus sylvestris L. populations of the eastern Urals radioactive trace from the control area of the accident at the Chernobyl Atomic Electric Power Station and from the region of the nuclear device tests at the Semipalatinsk proving grounds].

The method of isoenzyme electrophoresis was used for comparative evaluation of genetical effects in populations of Pinus sylvestris L. growing in Kyshtym region (east Urals), the Chernobyl accident zone and in the region of Semipalatinsk nuclear tests (Altai). It was shown that mutation frequencies for allozyme loci are ranged as follows: Ural > Altai > Chernobyl.