A HIGH-RESOLUTION TIME TRANSECT THROUGH THE LECH VALLEY, BAVARIA: POPULATIONS –
FAMILIES – INDIVIDUALS
Author(s): Mittnik, Alissa (Max Planck Institute for the Science of Human History, Jena; Institute for Archaeological Sciences, University
of Tübingen) - Knipper, Corina (Curt-Engelhorn-Centre Archaeometry gGmbH, Mannheim) - Massy, Ken (LMU Munich) - Stockhammer,
Philipp W. (LMU Munich; Max Planck Institute for the Science of Human History, Jena) - Krause, Johannes (Max Planck Institute for the
Science of Human History, Jena; Institute for Archaeological Sciences, University of Tübingen)
Presentation Format: Oral
While palaeogenomic research used to be contingent on the discovery of the rare sample with exceptional DNA preservation, targeted
enrichment and subsequent high-throughput sequencing of selected informative genetic markers has made possible the cost- and time-effective analysis and comparison of large numbers of ancient samples. As a result, high-resolution studies on a microregional
level that address social dynamics and local and individual variations in ancestry and mobility become a feasible pursuit. Here, we present the genomic analysis of over 120 individuals from the Lech valley in southern Bavaria, Germany, which offers ideal conditions for such a study. Several burial sites containing rich archaeological material were directly dated to the second half of the 3rd and first half of the 2nd millennium BCE and associated with the Final Neolithic Bell Beaker Complex and the Early and Middle Bronze Age.
Utilising relatedness inference methods developed for low-coverage modern DNA we are able to reconstruct multigenerational pedigrees that likely represent core families within the communities that buried their dead at each cemetery. Joint analysis with several hundred published ancient genomes allows us to estimate proportions of distinct ancestries in each individual to evaluate sex biased migration and admixture. Within an interdisciplinary framework, comprehensive archaeological assessment and stable isotope analyses were an integral part of this project. Thus, we gain additional insights into distribution of wealth and individual mobility, providing us with a more holistic view of the social structure of these prehistoric societies and the modes of cultural transition.
The autosomal findings are quite interesting, from 70% steppe among CWC, drowning to 50% with BB, drowning more and more till Late Bronze with 20% steppe; I can't understand how, a permenent flux of southerners or westerners? a long-standing apartheid between local pops?

For Y-DNA some 85% R1b being the remainder G and I, it's a good starting point to know what would be the first Celtic speakers as the area is in the core of the Hallstatt culture. About the R1b BB all were coming from abroad as the molar isotopes are not local, half of the BB women also came from afar.