Ancient genomes reveal social and genetic structure of Late Neolithic Switzerland

AI interpretationAI-generated

Swiss ancient DNA shows steppe ancestry arrived by 2860 BCE over 1000 years.

This study analyzed 96 ancient genomes from Switzerland, southern Germany, and Alsace, spanning the Middle/Late Neolithic to Early Bronze Age. It found that ancestry from Pontic-Caspian steppe pastoralists reached Switzerland as early as 2860–2460 BCE, similar to other parts of Europe. The genetic turnover was not sudden but a complex process lasting nearly 1000 years, with highly structured local populations.

• Steppe-related ancestry arrived in Switzerland by 2860–2460 BCE.
• The genetic turnover lasted almost 1000 years and was complex.
• Populations in the region were highly genetically structured during this period.

Sample interpretation

The dataset includes 97 samples, with 57 resolved Y-haplogroups. The most common Y lineage is G-S10301 (20 samples), followed by R-L2 (9) and G-PF3239 (5). Mitochondrial DNA is diverse, with K1a-T195C! and H1 each found in 7 samples. These lineages reflect a mix of local Neolithic and incoming steppe ancestries.

For genealogy enthusiasts

For ancestry enthusiasts, this confirms that steppe ancestry spread into Central Europe gradually, not as a single event. If you have Swiss or southern German roots, your ancient ancestors may include both early Neolithic farmers and later steppe pastoralists.