Genetic polymorphism in the GOT and GDH loci of the scotch pine seed progeny in the area of action of nitrogen-containing emissions from the chemical complex
Coimbra, Joao Carlos; Pinto, Iraja Damiani; Wurdig, Norma Luiza; Do Carmo, Dermeval Aparecido
Cytology and Genetics 45(6): 347-351
The variability in four GOT and GDH loci of the seed progeny (embryos) of three Pinus sylvestris L. subpopulations, differentially exposed to the action of emissions of a large chemical complex producing nitrogen fertilizers, has been studied for four years. A trend toward a decrease in the heterozygosity and an increase in the frequency of cases with significant deviations of the observed genotype distribution from the theoretically expected one were observed in the progeny of plants from a degrading and digressing subpopulation in an area of acute action of aeropollutants (.3 2 km).