Polymorphism of the Dopamine Transporter Gene in Populations of the Volga–Ural Region

Polymorphism at the dopamine transporter gene (DAT1) in populations of the Volga–Ural region was examined by means of polymerase chain reaction. Statistically significant differences in the dopamine transporter gene allele and genotype frequency distribution were revealed both between the populations belonging to one ethnic group and between the populations from different linguistic families.     

Polymorphism of the Serotonin 2A Receptor Gene in Populations of the Volga–Ural Region

The MspI restriction polymorphism of the serotonin 2A receptor gene (5HT2A) was typed in populations of the Volga–Ural region (Bashkirs, Chuvashes, Tatars, Udmurts, Maris, Mordovians, Komis, and Russians inhabiting the Republic of Bashkortostan). Population-specific patterns of the main polymorphism indices distribution were established. Specific trends in the changes of genotype and allele frequency of the 5HT2Agene depending on the ethnicity of the population were revealed.