Y-Chromosomal Lineages of Latvians in the Context of the Genetic Variation of the Eastern-Baltic Region.

Variations of the nonrecombining Y-chromosomal region were investigated in 159 unrelated Baltic-speaking ethnic Latvians from four different geographic regions, using 28 biallelic markers and 12 short tandem repeats. Eleven different haplogroups (hgs) were detected in a regionally homogeneous Latvian population, among which N1c, R1a, and I1 cover more than 85% of its paternal lineages. When compared its closest geographic neighbors, the composition of the Latvian Y-chromosomal gene pool was found to be very similar to those of Lithuanians and Estonians.

Population data of 10 X-chromosomal loci in Latvia.

Ten X-chromosomal STRs from two multiplex PCR approaches (DXS9898, DXS6807, HPRTB, DXS101, and androgen receptor (ARA); DXS7133, DXS10011, DXS7424, DXS8377, and DXS8378) have been typed in a Latvian population sample.