A · BT · CT · F · K · K2 · K2b · NO · N · N1 · N1a · N1a1 · N1a1a · N-Z1936 · N-Z1927 · N-Z1933 · N-VL62 · N-Z1939 · N-Y7310

Haplogroup N-Y7310

N-Y7310 (Z1939 > Y7308/Y7310 complex)

Macro-haplogroup

Parent clade

N-Z1939

Formed (estimate)

c. 1,400 years before present

TMRCA (estimate)

c. 1,100 years ago

Y7310

Overview

N-Y7310 forms one of the best-defined subclusters inside the N-Z1939 Finnic radiation. It is part of the Y7308/Y7310 sibling group, a known FTDNA cluster with extensive representation among Finnish BigY testers. Genetically, Y7310 reflects a stable paternal expansion that aligns with the medieval differentiation of Finnish inland populations, especially within the Savo–Karelia migration spheres. Phylogenetic structure shows multiple short branches typical of founder-driven expansions.

Geographic distribution

Y7310 is especially common in eastern and central Finland. Population clusters are concentrated in Savo, North Karelia, Kainuu and extending westward into the Häme interior. Moderate frequency appears among Karelian and Ingrian families. Smaller, scattered cases in Sweden correlate with historic migration of Finns during the early modern period.

Ancient DNA

Upstream Z1939 lineages appear in archaeological material from Finland’s Iron Age settlement zones, suggesting continuity into the medieval period when Y7310 diversified.
Modern phylogenetic analyses indicate a strong association between Y7310 and historically documented Finnish settlement expansions.
The estimated TMRCA corresponds tightly to the era of medieval population growth in inland Finland.

Phylogeny & subclades

Y7310 belongs to the Y7308 ←→ Y7310 dual cluster under N-Z1939, forming one of the largest identifiable downstream branches. This structure is heavily used in Finnish surname research and regional population modelling. It contains several downstream private-level mutations, indicating multiple living descendant lineages.

N-Y7310*
Derived microbranches in Finland and Karelia

Notes & context