Y-DNA Haplotree — Haplogroup I

Browse haplogroup I of the Y-chromosome tree — Europe's own paternal macro-lineage, descended from its Ice Age hunter-gatherers: I-M253 (I1) dominating Scandinavia and I-P37 (I2a) the western Balkans. Every named sub-branch with its defining SNPs, tester counts and countries. Free, no account needed.