[Types of regulatory regions in mitochondrial DNA in eastern Slavs].

Nucleotide sequences of hypervariable segment I (HVS I) of the mitochondrial DNA (mtDNA) control region were determined for 23 eastern Slavs residing in Magadan, northeastern Asia. A high diversity of HVS I types was observed: each mtDNA analyzed has a unique nucleotide sequence. The types of HVS I revealed were shown to be widespread in the Caucasian population. Eight types of HVS I are identical to those in Caucasians from the Middle East and southern Europe. Taking into account the data obtained on mtDNA types in the world Caucasian population, the problem of the origin and differentiation of peoples of the Indo-European language family is discussed.