Overview
N1b (F2930/CTS2929) is the missing upstream parent of the well-known Yakut-centered N1b1-B170 lineage. It represents an early diverging branch inside the N1 radiation and predates the strong founder effects that shaped the later Siberian expansions. N1b likely formed among late Pleistocene forest-steppe foragers of eastern Siberia and maintained a low effective population size for thousands of years before giving rise to the B170-positive Yakut cluster.
Geographic distribution
Modern N1b* and N1b-derived lineages occur mainly in eastern Siberia, the Lena–Aldan region, and isolated communities of the Sakha Republic. Occasional occurrences appear in Transbaikal and Amur populations, reflecting older mobility corridors.
Ancient DNA
- Late Holocene Siberian genomes show upstream N1b-related signatures predating the Yakut expansion.
- Ancient remains from the Lena basin include lineages sitting phylogenetically between basal N1 and derived N1b1.
Phylogeny & subclades
N1b divides into basal N1b* and the derived N1b1-B170 branch. N1b serves as the direct ancestor of the Yakut-majority paternal cluster.
Notes & context
References & external links