Leonid A. Vyazov

Sparse sampling and rare-variant depletion distort PCA visualizations of population structure: recovery with objective-guided manifold learning

Sparse or clustered sampling plus rare-variant filtering collapse PCA plots into triangles and three-ray patterns; objective-guided manifold learning on high-dimensional classic PC scores recovers obscured structure.

Long shared haplotypes identify the Southern Urals as a primary source for the 10th century Hungarians

The paper uses ancient DNA from the Southern Urals to link the 10th century Hungarians to the Karayakupovo archaeological horizon.

Performance of qpAdm-based screens for genetic admixture on admixture-graph-shaped histories and stepping-stone landscapes

This study evaluates qpAdm's performance on complex admixture histories and stepping-stone landscapes, finding high false discovery rates and suggesting protocol improvements.

The Genetic Origin of the Indo-Europeans

This paper uses ancient DNA data to trace the genetic origins of the Yamnaya culture and links their expansion to the spread of Indo-European languages.

Postglacial genomes from foragers across Northern Eurasia reveal prehistoric mobility associated with the spread of the Uralic and Yeniseian languages

Ancient DNA from 181 North Eurasian foragers traces a stable west-to-east ancestry gradient and ties Yakutia_LNBA ancestry, with Y-haplogroup N, to Uralic speakers and Seima-Turbino metallurgy.

The genomic formation of First American ancestors in East and Northeast Asia

The paper shows Ancient Beringians have admixture from Amur River Basin populations and are not the deepest American lineage.