The British Isles have some of Europe's best-measured ancient-DNA transects: a Mesolithic baseline, Neolithic tomb-builders, a near-total Beaker-era turnover, a mid-Bronze Age influx, and in England the quantified Anglo-Saxon settlement and the Danelaw. Ireland and Scotland show striking continuity since the Beaker reset. Which of those layers a genome carries, and in what proportion, is a matter of descent; it is not a statement of national identity.
The articles read English ancestry from the Beaker reset to the Anglo-Saxon century, follow Ireland's transect from Mesolithic foragers through a Neolithic dynastic elite to the Beaker turnover, cover the Pictish genomes and their local roots, the Gaelic-Irish kinship of the west and the measured Norse layer in Scotland's isles, and report the 30-genome transect of southwestern England where Beaker newcomers buried their dead inside monuments built a millennium earlier.
What the paid qpAdm analysis includes