Polymorphism nucleolar chromosome regions in Abies sibirika under different ecological conditions

Polymorphism of nucleolar regions of chromosomes have been studied in Abies sibirika under different ecological conditions (plains, river valleys and floodplains, hills and foothills, under industrial pollution as compared to a control one). The results provide evidence for an enhancing of extreme environmental factors and technogenic pollution on functional activity of nucleolar regions chromosomes in Abies sibirika.