We present
whole -
genome sequences of 10 ancient samples from archaeological excavations in East England, which date to the late Iron Age and to the early and middle Anglo - Saxon periods and hence
let us directly observe and quantify the genetic impact of the Anglo - Saxon migrations in England.
While principal component analysis can reveal relatively old population structure, such as generated from long - term isolation - by - distance models15,
whole -
genome sequences let us study rare variants to gain insight into more recent population structure.