Of the three ancestral components that make up most Europeans, the farmer one is usually the largest and the least discussed. Steppe ancestry has the wagons and the Indo-European debate; hunter-gatherers have the Ice Age. The farmers have wheat, sheep, and the largest single share of most people's genomes south of the Alps. This guide covers who they were, how their ancestry spread, and how to measure it.
Who the Anatolian Neolithic farmers were#
Farming began in the Fertile Crescent around 9500 BC and was established across central and western Anatolia by about 8500 BC. The people of those early farming villages — sites such as Boncuklu, Tepecik-Çiftlik and Barcın in Turkey — are the Anatolian Neolithic farmers of the reference panels, and their source-population page is Anatolian Neolithic farmers, 8500–6000 BC.
Two findings from the genetics are worth holding on to. First, Feldman and colleagues (2019) showed that the central Anatolian farmers descended largely from the local hunter-gatherers of the region, with a modest contribution from further east — farming was adopted in place, not carried in by a new population. Second, Lazaridis and colleagues (2016) showed that the early farmers of Anatolia, the Levant and Iran were genetically quite distinct from one another; the version that reached Europe was specifically the Anatolian one.
How farmer ancestry spread across Europe#
From about 6500 BC, farming populations carrying Anatolian ancestry moved into Europe along two routes — the Danube corridor into central Europe, and the Mediterranean coast into Italy, southern France and Iberia — reaching Britain and Scandinavia by around 4000 BC. Their genomes show they were overwhelmingly of Anatolian descent on arrival, with small and gradually growing shares of the local hunter-gatherer ancestry they encountered (Lipson et al., 2017).
In the reference literature this mixed European population is called Early European Farmer (EEF): Anatolian ancestry plus a minority hunter-gatherer component, the exact share depending on region and century. "Anatolia_N" and "EEF" are therefore not the same source. One is the Anatolian population before the migration; the other is its European descendants after two thousand years of mixing. Which one a model uses changes what "farmer ancestry" means in the result.
Sardinia is the textbook case of persistence: modern Sardinians retain more Neolithic farmer ancestry than any other population in Europe, because the island was largely bypassed by the steppe migrations that reshaped the mainland after 3000 BC.
What a farmer percentage measures#
A Neolithic farmer share is the weight assigned to a farmer-related source in a specific admixture model, and everything said of steppe and hunter-gatherer weights applies here too: the number depends on the proxy chosen, the other sources offered, the outgroups tested against and the coverage of the file. Two points are specific to this component:
- The proxy choice changes the weight the most. Model a modern Italian against Anatolia_N, WHG and Western Steppe Herders and the farmer weight includes the hunter-gatherer resurgence that EEF carried; model the same person against an EEF source and part of that share moves to the farmer column while WHG drops. Neither is wrong; they are different questions.
- Southern Europe and the Near East need a later era. In Classical Antiquity, the populations of the Mediterranean had already absorbed further Anatolian, Levantine and Iranian-related ancestry through Bronze Age and Iron Age contact. A single "Neolithic farmer" source cannot represent that; the later era's sources can.
As a broad picture from the published literature: farmer-related ancestry is highest in Sardinia and the Mediterranean south, substantial across central and western Europe, and lowest in the north-east. Those are indications, not lookups — the analysis measures your file.
Measuring it with qpAdm#
Our qpAdm analysis models your raw file in two eras. The Hunter-Gatherer & Neolithic Farmer era resolves the classic three-way structure — Anatolian farmers, Western Hunter-Gatherers, Western Steppe Herders — with the weight, standard error and z-score printed for every source, the model's p-value, the complete right set, and the full model record (confidence intervals, the nested-model table, the rank test) as a plain-text download. The Classical Antiquity era then re-models the same genome against populations of the Iron Age and Roman world, where "farmer" ancestry has become part of many later groups. Reading the numbers is the subject of How to read qpAdm results; the overview for buyers is What is a qpAdm ancestry test?.
Measuring it with Global25#
With a coordinate row, the free admixture calculator fits the same structure against curated per-era source panels in your browser, and the paid Global25 analysis applies the curated calculators and prints every population offered, used or not. The distance lens is instructive here too: a modern Sardinian row sits close to Neolithic farmer averages in G25 space, and a modern Estonian row sits far from them — which is the whole history of Europe in one distance list. qpAdm vs Global25 sets out when each method is the right instrument.
A worked reading#
Two results for the same imaginary genome, from two models in the earliest era:
Model A p = 0.27 Anatolia_N 0.61 ± 0.03 WSH 0.30 ± 0.03 WHG 0.09 ± 0.02
Model B p = 0.19 EEF 0.72 ± 0.03 WSH 0.28 ± 0.03
Both pass. In Model B the farmer weight is higher and the hunter-gatherer source has vanished — not because the genome changed, but because EEF already contains the hunter-gatherer share that Model A had to account for separately. A reader who quotes "61% farmer" from one and "72% farmer" from the other as a contradiction has misread both; each is correct for its own sources. This is why a report names the proxy and why a farmer figure without one is not comparable with anything.
The individuals behind the label#
Every Anatolian farmer genome in the panel is a published individual from an excavated burial, curated in the Allen Ancient DNA Resource — see AADR explained. The free Ancient Sample Atlas plots each of them by find-spot and date; filter to 7000–6000 BC and watch the farming villages appear across Anatolia and then the Aegean.
What the result is not#
A farmer share is not a claim that anyone buried at Barcın or Çatalhöyük was related to you. It is a statement that your genome is compatible with drawing that share of ancestry from a population like theirs, against specific alternatives, in one model. It carries no information about lactose tolerance, appearance or diet — those are separate findings about the ancient individuals, not inheritances readable from a weight.
The companion guides are Steppe ancestry and Hunter-gatherer ancestry; the terms are defined in the glossary. If you have a raw file and want to know whether it can resolve the split before you spend anything, the free Raw DNA File Check reports its verdict.
References#
- Lazaridis, I. et al. (2016). Genomic insights into the origin of farming in the ancient Near East. Nature, 536, 419–424.
- Feldman, M. et al. (2019). Late Pleistocene human genome suggests a local origin for the first farmers of central Anatolia. Nature Communications, 10, 1218.
- Mathieson, I. et al. (2015). Genome-wide patterns of selection in 230 ancient Eurasians. Nature, 528, 499–503.
- Lipson, M. et al. (2017). Parallel palaeogenomic transects reveal complex genetic history of early European farmers. Nature, 551, 368–372.
- Chiang, C. W. K. et al. (2018). Genomic history of the Sardinian population. Nature Genetics, 50, 1426–1434.
