DNA: a mosaic of steppe influx and northern lineages
Genome-wide data from 13 individuals dated between 2834 and 2000 BCE from Ivanovo (Miloslavka, Timofeyevka, Mytishchi) portray a community with substantial steppe-related ancestry combined with northern European and local farmer-forager components. This pattern is consistent with Fatyanovo-related groups elsewhere, which carry ancestry linked to Corded Ware expansions from the steppe.
Uniparental markers in the dataset show limited diversity but informative signal: Y-chromosome haplogroup R is observed in 2 of the 13 samples, indicating presence of steppe-associated paternal lineages (the resolution here is coarse and specific subclades cannot be robustly assigned from the summary counts). Mitochondrial haplogroups are varied — U (3), K (2), W6 (2), T (2), H (1) — reflecting a mixture of lineages common across northern and eastern Europe and consistent with female-mediated gene flow from local populations.
Population genomic analyses (ADMIXTURE/PCA and formal tests in broader datasets) typically show Fatyanovo-related individuals shifted toward steppe clusters relative to earlier local foragers, but not pure steppe ancestry — admixture with local groups is clear. With 13 samples, conclusions are increasingly reliable for the Ivanovo cluster but remain geographically limited; regional sampling density and temporal depth are still insufficient to resolve fine-scale demographic processes such as sex-biased migration or the tempo of admixture.
In short: the Ivanovo Fatyanovo-related Bronze Age communities were genetically mixed, bearing the imprint of long-distance steppe movements while retaining local maternal diversity.