Table 1:
Regional variation in ancestry in Iron Age Britain
| Latitude | Modeling Ancestry With Pre-Bronze Age Sources | With Middle to Late Bronze Age Sources | ||||||
|---|---|---|---|---|---|---|---|---|
| Region | N | P | WHG | EEF | Steppe | P | Continental | |
|
| ||||||||
| Scotland | ||||||||
| Orkney | 2 | 59 | 0.22 | 14.2±1.1% | 34.1±1.2% | 51.6±1.6% | 0.10 | 20±9% |
| West | 4 | 58 | 0.12 | 13.0±.8% | 32.3±1.0% | 54.7±1.2% | 0.19 | 8±7% |
| Southeast | 12 | 56 | 0.67 | 12.1±.6% | 33.9±.7% | 54.0±.9% | 0.39 | 16±5% |
|
| ||||||||
| England | ||||||||
| North | 10 | 54 | 0.35 | 13.4±.6% | 36.3±.8% | 50.3±1.0% | 0.76 | 35±5% |
| E. Yorkshire | 47 | 54 | 0.61 | 13.2±.4% | 37.0±.5% | 49.8±.6% | 0.86 | 44±4% |
| Midlands | 18 | 53 | 0.66 | 12.6±.5% | 36.0±.6% | 51.4±.8% | 0.77 | 36±4% |
| Southwest | 84 | 53 | 0.30 | 13.7±.4% | 38.7±.4% | 47.6±.6% | 0.56 | 55±5% |
| East Anglia | 21 | 52 | 0.44 | 13.5±.5% | 37.0±.5% | 49.5±.7% | 0.52 | 44±4% |
| Southcentral | 38 | 52 | 0.32 | 13.9±.4% | 38.8±.5% | 47.2±.6% | 0.35 | 56±5% |
| Southeast | 3 | 51 | 0.13 | 13.9±.5% | 38.3±.5% | 47.8±.6% | 0.40 | 52±5% |
| Cornwall | 16 | 50 | 0.40 | 13.5±.5% | 36.4±.7% | 50.1±.8% | 0.64 | 39±5% |
|
| ||||||||
| Wales | ||||||||
| North | 1 | 53 | 0.20 | 12.1±1.6% | 34.7±2.0% | 53.2±2.5% | 0.53 | 22±14% |
| South | 2 | 51 | 0.66 | 14.2±1.2% | 38.6±1.5% | 47.2±1.8% | 0.57 | 53±11% |
Notes: Regions are ordered first by large grouping (Scotland-England-Wales), then latitude. We separate “England East Yorkshire” from “England North” because of distinctive cultural context in the IA (Arras). For the final two columns, we use as the Britain source Britain_C.EBA and as the continental source Margetts Pit / Cliffs End Farm pool.