East–West Genetic Gradients, Not a Wall

Updated: 2026.09.12 1H ago 1 sources
Two common polygenic scores (one for educational attainment, one for adult height) show a clear East–West contrast across Europe, but the variation is best described as overlapping longitudinal gradients rather than a discrete genetic 'Iron Curtain.' The pattern implies gradual clines in allele frequencies and polygenic prediction across geography rather than a binary East/West break. — This reframes public and policy conversations that treat East/West differences as cultural or political only, by showing genetics can reflect gradual ancestry structure that could be misinterpreted or politicized.

Sources

The Genetic Iron Curtain: Differences between East and West in Polygenic Scores
Davide Piffer 2026.09.12 100% relevant
The article compares the EA4 educational‑attainment polygenic score and a height PGS across Eastern vs Western European samples and maps their change with longitude rather than a sharp boundary (Davide Piffer, Sep 12, 2026).
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