Figure 4

Map of northern Sweden illustrating the clustering of birth places (dots) of p.R518X ancestors born between 1650 and 1950. Bold dots represent parishes where ancestors from ≥3 index families co-resided during the same time-period (1650-1749, 1750-1849 and/or 1850-1949). For each time-period the area delimited by the bold dots was shaded, resulting in a darker colour in the region with highest concentration of p.R518X ancestors over time. The number of p.R518X ancestors born in each parish (whereof 93% born between 1650 and 1850) is given, followed by the maximum number of co-residing families during a single time-period (in parenthesis).