Map of Finland with the study regions.

• Main Authors: Sini Kerminen (10231332), Nicola Cerioli (10231335), Darius Pacauskas (10231338), Aki S. Havulinna (7517390), Markus Perola (62544), Pekka Jousilahti (131538), Veikko Salomaa (62543), Mark J. Daly (210204), Rupesh Vyas (10231341), Samuli Ripatti (144251), Matti Pirinen (415109)
• Format: Still Image
• Language: unknown
• Published: 2021
• Subjects: Genetics; Evolutionary Biology; Ecology; Science Policy; Environmental Sciences not elsewhere classified; Biological Sciences not elsewhere classified; National FINRISK Study; Finnish reference groups; individual-level ancestry estimation; European country; fine-scale ancestry profiles; Finland; World War II; region; Kainuu; Salla; karelia*; Lapland
• Online Access: https://doi.org/10.1371/journal.pgen.1009347.g001

Map of Finland showing historically motivated regions that we use to track changes in genetic ancestry. Dotted lines show the regions ceded to the Soviet Union (Ceded Karelia (CKA), Petsamo, and Salla) after World War II. Today these three regions are part of Russia. Purple arrows show the main patterns how evacuees from CKA were relocated to other parts of Finland. Diamonds mark the four largest metropolitan areas in Finland: Helsinki, Turku, Tampere and Oulu. ÅLA: Åland islands, SOF: Southern Finland. SWF: Southwestern Finland, TAV: Tavastia, SKA: South Karelia, CKA Ceded Karelia, NKA: North Karelia, SSA: South Savo, NSA: North Savo, CNF: Central Finland, OST: Ostrobothnia, NOS: North Ostrobothnia, KAI: Kainuu, LAP: Lapland.