[Allozyme variation of seed embryos and mating system in relict populations of Scots pine (Pinus sylvestris L.) from the Kremenets Hill Ridge and Maloe Poles'e].

Allozyme variation at ten polymorphic loci and mating system was studied in three small isolated relict populations (4.4 to 22 ha) and in three artificial stands of Pinus sylvestris from the Kremenets Hill Ridge and Maloe Poles'e. It was established that the mean heterozygosity of 130 to 140 year-old trees from natural populations (H(O) = 0.

[Age dynamics of population gene pool of the Crimean pine (Pinus pallasiana D. Don) in Crimea].

Polymorphism of young (14-16 years), middle-aged (70-80 years) and old (120-150 years) plants and their seed embryos has been studied using 20 and 10 allozyme loci correspondingly in the population of Pinus pallasiana D. Don from Mountain Crimea. It was revealed that the old-aged trees had significantly lower level of expected heterozygosity than the young plants.

[Genetic variability of the natural populations and man-made forests of Pinus sylvestris L. from Kremenets Hills and Maloe Poles'e].

Comparative analysis of genetic variability of three relic populations and six forest stands of different age grown in Kremenets Hills and Maloye Polesye has been carried out at 19 allozyme loci. All populations and four forest stands were characterized by a low level of heterozygosity (Ho = 0.245-0.

[Genetic control of isozymes in European spruces (Picea abies (L) Karst) of the Ukrainian Carpathian mountains].

Genetical control of the enzymes GOT, GDH, DIA, MDH, SOD, FDH, ADH, ACP and LAP has been studied in nine natural Carpathian populations of Norway spruce (Picea abies (L.) Karst.) using polyacrylamide gel elecrophoresis and analysis of isozyme variability in 346 trees.

[Population-genetic variation in Scots pine Pinus sylvestris L. from the main forest regions of Ukraine].

Using electrophoretic analysis of 22 isozyme loci controlling ten enzyme systems, we studied intrapopulation and interpopulation variation of Scots pine Pinus sylvestris L. in the main forest regions of Ukraine. In 15 of the populations examined, 76.