Table S3.
Information on the frequencies of the putatively selected FADS haplotype
| Population | Absolute frequency | No. of chromosomes | Relative frequency |
| Siberia | |||
| Aleutian | 6 | 6 | 1.000 |
| Altaian | 20 | 24 | 0.833 |
| Buryat | 16 | 34 | 0.471 |
| Chukchi | 49 | 60 | 0.817 |
| Dolgan | 6 | 8 | 0.750 |
| Evenki | 15 | 30 | 0.500 |
| Ket | 2 | 4 | 0.500 |
| Khanty | 56 | 70 | 0.800 |
| Koryak | 14 | 20 | 0.700 |
| Naukan | 30 | 32 | 0.938 |
| Nganasan1 | 23 | 46 | 0.717 |
| Selkup | 13 | 18 | 0.722 |
| Tundra_Nentsi | 6 | 6 | 1.000 |
| Yakut | 41 | 68 | 0.603 |
| Yukaghir | 14 | 24 | 0.583 |
| Greenland | |||
| Inuit | 26 | 26 | 1.000 |
| North and Central America | |||
| Algonquin | 10 | 10 | 1.000 |
| Chipewyan | 23 | 30 | 0.767 |
| Cree | 8 | 8 | 1.000 |
| Diaguita | 10 | 10 | 1.000 |
| Kaqchikel | 24 | 24 | 1.000 |
| Maya1 | 34 | 36 | 0.944 |
| Mixe | 34 | 34 | 1.000 |
| Mixtec | 4 | 10 | 0.400 |
| Ojibwa | 6 | 8 | 0.750 |
| Purepecha | 2 | 2 | 1.000 |
| Yaqui | 2 | 2 | 1.000 |
| Zapotec1 | 42 | 44 | 0.955 |
| Average | 199 | 218 | 0.913 |
| South America | |||
| Arara | 2 | 2 | 1.000 |
| Arhuaco | 8 | 10 | 0.800 |
| Aymara | 43 | 46 | 0.935 |
| Bribri | 7 | 8 | 0.875 |
| Cabecar | 57 | 62 | 0.919 |
| Chane | 4 | 4 | 1.000 |
| Chono | 8 | 8 | 1.000 |
| Chorotega | 2 | 2 | 1.000 |
| Embera | 10 | 10 | 1.000 |
| Guahibo | 12 | 12 | 1.000 |
| Guarani | 12 | 12 | 1.000 |
| Guaymi | 10 | 10 | 1.000 |
| Huetar | 2 | 2 | 1.000 |
| Hulliche | 8 | 8 | 1.000 |
| Inga | 16 | 18 | 0.889 |
| Jamamadi | 2 | 2 | 1.000 |
| Kaingang | 4 | 4 | 1.000 |
| Karitiana | 26 | 26 | 1.000 |
| Kogi | 8 | 8 | 1.000 |
| Maleku | 6 | 6 | 1.000 |
| Palikur | 6 | 6 | 1.000 |
| Parakanã | 2 | 2 | 1.000 |
| Piapoco | 10 | 12 | 0.833 |
| Quechua | 79 | 80 | 0.988 |
| Suruí | 48 | 48 | 1.000 |
| Teribe | 6 | 6 | 1.000 |
| Ticuna | 12 | 12 | 1.000 |
| Toba | 8 | 8 | 1.000 |
| Waunana | 5 | 6 | 0.833 |
| Wayuu | 20 | 22 | 0.909 |
| Wichi | 10 | 10 | 1.000 |
| Yaghan | 8 | 8 | 1.000 |
| Average | 461 | 480 | 0.960 |