1. Department of Evolutionary Biology, Uppsala University, Uppsala 752 36, Sweden.
2. Department of Archaeology and Classical studies, Stockholm University, Stockholm 106 91, Sweden.
3. Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen 1350, Denmark.
4. Department of Archaeology, Environment and Community Planning, La Trobe University, Melbourne VIC 3086, Australia.
5. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm 171 77, Sweden.
6. Evolutionary Biology Group, Estonian Biocentre and University of Tartu, Tartu 51010, Estonia.
7. Department of Historical Studies, University of Gothenburg, Gothenburg, 405 30, Sweden.
8. Department of Archaeology and Ancient History, Lund University, Lund, 221 00, Sweden.
9. Science for Life Laboratory, Uppsala University, Uppsala 752 36, Sweden.