Ancestry populations · Hunter Gatherer and Neolithic Farmer
Western Steppe Herder
Eneolithic and Early Bronze Age pastoralists of the Pontic–Caspian steppe, the Yamnaya and their forerunners, whose ancestry reshaped Eurasia. One of the 13 curated source populations in the Hunter Gatherer and Neolithic Farmer era of the Ancestrify qpAdm ancient-DNA analysis.
Who they were
- Period
- 5000 – 2800 BC
- Era in the analysis
- Hunter Gatherer and Neolithic Farmer
- Region
- Pontic–Caspian steppe
- Role in the model
- Source (left) population — a reference qpAdm tests against
The Western Steppe Herders are the pastoralists of the Pontic–Caspian steppe from the Eneolithic through the Yamnaya horizon, sampled from the Samara, Kalmykia and Ukraine steppe. Their genomes are a roughly even blend of Eastern hunter-gatherer and Caucasus-related ancestry, formed on the steppe over the fifth and fourth millennia BC (Haak et al. 2015; Wang et al. 2019). Around 3000 BC this population expanded explosively, carrying wheeled vehicles, horse-keeping and, most researchers hold, the Indo-European languages westward with the Corded Ware and eastward with the Afanasievo.
The expansion left steppe-related ancestry as the third great component of every European population, highest in the north and east and lowest in Sardinia and the southern Mediterranean, and through the Sintashta and Andronovo horizons it reached Iran and South Asia (Allentoft et al. 2015). In the model it is itself a mixture of the Eastern Hunter Gatherer and Caucasian Hunter Gatherer sources, so the three overlap; the model will often express steppe ancestry through this single source rather than through its parents.
In Ancestrify's qpAdm service, Western Steppe Herder is a source in the "Hunter Gatherer and Neolithic Farmer" era. The report shows its weight with a standard error and a Z-score, so you can see not only how much of the model it carries but how confidently that share is separated from zero, and a model that cannot support it is rejected rather than published. Its weight is best read together with the Eastern and Caucasian hunter-gatherer sources, and the standard errors show how well the model could distinguish the blended source from its components.
Y haplogroups R1b-Z2103 and, on the forest-steppe, R1a and I2a, with mtDNA U5a, U4, H and T2, are typical of these samples. A haplogroup alone is never evidence of a share.
In your reportArtwork is an AI-generated artistic interpretation informed by the archaeological record — not documentary evidence.Descends from a merger of Eastern Hunter-Gatherers (EHG) and Caucasus Hunter-Gatherers (CHG) on the Pontic-Caspian steppe during the Chalcolithic period (~5th millennium BCE). This component is closely associated with the Yamnaya culture, whose massive expansion around 3000 BCE transformed the genetic and cultural landscape of Eurasia. Yamnaya-related migrations are linked to the dispersal of Indo-European languages across Europe, Central Asia, and South Asia. Individuals predominantly carried Y-chromosome haplogroup R1b-Z2103, and their genetic profile appears in both Corded Ware and Bell Beaker cultures. Western Steppe Herder ancestry remains a substantial component in modern European, Central Asian, and South Asian populations.
Where this population sits in the model
The Ancestrify qpAdm analysis models your genome once per era. The Hunter Gatherer and Neolithic Farmer era has 13 curated source populations, and Western Steppe Herder is one of them: every candidate model for that era is a combination of these sources, tested against a fixed set of outgroup populations, and only a model that passes the statistical fit check is published — with a p-value, and a standard error on every proportion.
A reference, not a verdict: every population on this page is a source the model tests your genome against — a well-sampled point in ancient genetic space that a mixture of ancestries can be expressed in terms of. A weight on it means your genome is well described as partly resembling those people; it is never a statement that they, specifically, were your ancestors, and a population that fits well is not the only one that could.
Read how the method works on the qpAdm analysis page, or the definitions in the glossary.
Model it yourself for free
The Ancestrify Lab runs in your browser, with no account. Paste a Global25 row into an admixture calculator that covers the Hunter Gatherer and Neolithic Farmer era, rank the closest ancient populations in the distance tool, or run f4, qpWave and qpAdm on the public panel in the AdmixTools 2 workbench. These are Global25 fits and exploratory statistics, not the formal qpAdm model of the paid analysis.
Questions
Who were the Western Steppe Herder (5000 – 2800 BC)?
Western Steppe Herder is one of the 13 curated source populations in the Hunter Gatherer and Neolithic Farmer era of the Ancestrify qpAdm analysis: a group of published ancient genomes from one archaeological context, pooled as a single reference the model can test your genome against.
Does Western Steppe Herder in my result mean they were my ancestors?
No. A source population is a reference the model tests against, never a statement about who your ancestors were. A coefficient on this source means the ancestry those burials represent helps explain your genome to within statistical noise — similar ancestry composition, not descent from those individuals. Ancestrify never claims a population is your ancestor.
What does a Western Steppe Herder percentage in a qpAdm model mean?
qpAdm estimates the mixture proportions that best explain your genome as a combination of the chosen sources, given a fixed set of outgroup (right) populations, and reports a p-value for whether the model is statistically acceptable together with a standard error for every proportion. The percentage is that estimated share, with its uncertainty published beside it.
How do I get a qpAdm model that uses Western Steppe Herder?
Order the Ancestrify qpAdm analysis (€29.99, one-time) and upload the raw file you already have from a consumer test. Your genome is merged into the AADR reference panel and modelled across both eras; each era's model is built from that era's source populations, so a model for the Hunter Gatherer and Neolithic Farmer era draws on Western Steppe Herder where it improves the fit.
Can I model Western Steppe Herder ancestry for free first?
Yes. The Ancestrify Lab runs Global25 admixture calculators, a nearest-populations distance tool and an AdmixTools 2 workbench in your browser with no account, and several calculators cover the Hunter Gatherer and Neolithic Farmer era. Those are G25 fits, not formal qpAdm models — the paid analysis is the one with a p-value.
More populations from the Hunter Gatherer and Neolithic Farmer era
Browse the full directory of source populations, or continue with another population from the same era:
Anatolian Neolithic Farmer8500 – 6000 BC
Ancestral South Indian10000 – 2000 BC
Caucasian Hunter Gatherer13000 – 7000 BC
Eastern Hunter Gatherer12000 – 5000 BC
Iberomaurusian15000 – 8000 BC
Iranian Neolithic Farmer8000 – 5000 BC
Native American15000 – 1500 BC
Natufian12000 – 8000 BC
North African Farmer5200 – 4000 BC
Northeast Asian6000 – 2000 BC
Sub Saharan African
Western Hunter Gatherer12000 – 6000 BC