Haplogroup R-M417 (R1a)
R-M417 is the expansion branch of R1a — the dominant paternal lineage of Eastern Europe and, through its Z93 branch, of Indo-Iranian-speaking Asia. Explore the branch in the full Y-DNA haplotree — sub-branches, defining variants and where its testers live. Free, no account needed.
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Origin and distribution of R-M417 (R1a)
R-M417 is the branch through which almost all living R1a men descend — a lineage that expanded dramatically from the Eastern European forest-steppe in the third millennium BCE. In Europe it is the paternal signature of the Corded Ware horizon: today half or more of men in Poland, Russia, Ukraine and the Baltic states carry an R1a line, with substantial frequencies through Scandinavia, the Czech Republic and the Balkans.
The branch splits along a famous east–west divide. R-Z282 sublineages dominate the Slavic- and Baltic-speaking world, while R-Z93 travelled the other way — with steppe pastoralists into Central and South Asia, where it is common from the Altai to the Indian subcontinent, particularly among Indo-Iranian-speaking populations. Ancient DNA ties both wings to the same steppe expansion that reshaped Eurasia's paternal gene pool.
One line among many: your Y haplogroup traces a single paternal line — one ancestor per generation out of thousands — so it is a thread of deep ancestry, not an ethnicity and not a percentage of who you are. Two men in the same branch share a forefather, but the rest of their genomes can differ as much as any two strangers'.
Frequently asked questions
What is haplogroup R-M417 (R1a)?
R-M417 is the expansion branch of R1a — the dominant paternal lineage of Eastern Europe and, through its Z93 branch, of Indo-Iranian-speaking Asia. It is a branch of the Y-DNA tree: everyone in it inherits the same set of defining mutations from one shared forefather.
How do I find out if I belong to R-M417 (R1a)?
If you have already tested with a consumer DNA company, the free Y-DNA Clade Finder reads a raw DNA export (23andMe, AncestryDNA, MyHeritage or a VCF) and places you on the tree at the resolution your file supports — free, and the file is discarded after analysis. A dedicated Y-DNA sequencing test resolves deeper branches than a genotyping chip can.
Does belonging to R-M417 (R1a) make me descend from one people?
No. A haplogroup follows a single paternal line — one ancestor per generation — while the rest of your ancestry doubles every generation back. It is a deep-time thread, not an ethnicity, and two members of the same branch can otherwise be as genetically different as any two strangers.
What does this page's tree data show?
The live browser below shows the branch inside the full Y-DNA haplotree of tested lineages — its sub-branches, the variants that define them, and the countries its testers report. Counts reflect people who have taken a Y-DNA test and shared an origin, so they describe the tested world, not ancient frequencies.
Keep exploring
Don't know your haplogroup yet? The free Y-DNA Clade Finder reads it from a raw DNA export. Or browse the whole tree in the Y-DNA Haplotree. Other major branches: