Abstract
The New World Arctic, the last region of the Americas to be populated by humans, has a relatively well-researched archaeology, but an understanding of its genetic history is lacking. We present genome-wide sequence data from ancient and present-day humans from Greenland, Arctic Canada, Alaska, Aleutian Islands, and Siberia. We show that Paleo-Eskimos (similar to 3000 BCE to 1300 CE) represent a migration pulse into the Americas independent of both Native American and Inuit expansions. Furthermore, the genetic continuity characterizing the Paleo-Eskimo period was interrupted by the arrival of a new population, representing the ancestors of present-day Inuit, with evidence of past gene flow between these lineages. Despite periodic abandonment of major Arctic regions, a single Paleo-Eskimo metapopulation likely survived in near-isolation for more than 4000 years, only to vanish around 700 years ago.
| Original language | English |
|---|---|
| Article number | 1255832 |
| Journal | Science |
| Volume | 345 |
| Issue number | 6200 |
| Number of pages | 9 |
| ISSN | 0036-8075 |
| DOIs | |
| Publication status | Published - 2014 |
Keywords
- Alaska
- Arctic Regions
- Base Sequence
- Bone and Bones
- Canada
- DNA, Mitochondrial
- Genome, Human
- Greenland
- Hair
- History, Ancient
- Human Migration
- Humans
- Inuits
- Molecular Sequence Data
- Siberia
- Survivors
- Tooth
- Alaska USA, North America Nearctic region
- Aleutian Islands North Pacific Pacific Ocean
- Arctic Ocean Arctic Ocean
- Canada North America Nearctic region
- Greenland Nearctic region
- Siberia Russia, Asia, Europe Palearctic region
- archeology
- gene flow
- genetic prehistory
- genome-wide sequence data
- geographical distribution
- species migration
- Primates Mammalia Vertebrata Chordata Animalia (Animals, Chordates, Humans, Mammals, Primates, Vertebrates) - Hominidae [86215] human common Fossil Native American, Inuit
- 03506, Genetics - Animal
- 03508, Genetics - Human
- 03509, Genetics - Population genetics
- 05000, Physical anthropology and ethnobiology
- 10062, Biochemistry studies - Nucleic acids, purines and pyrimidines
- 62520, Chordata: general and systematic - Mammalia
- 63000, Paleozoology
- 64500, Paleobiology
- Population Studies
- GSE59546 Gene Expression Omnibus nucleotide sequence
- PRJEB6516 European Nucleotide Archive nucleotide sequence
- Anthropology
- Human Geography
- Paleobiology
- Population Genetics
- MULTIDISCIPLINARY
- POPULATION HISTORY
- GENOME SEQUENCE
- MTDNA VARIATION
- GREENLAND
- ADMIXTURE
- AMERICA
- CANADA
- ESKIMO
- DORSET
- DIVERSITY
- Research Articles
- GENETICS
- ONLINE
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