Mitochondrial diversity of I ñupiat people from the A laskan N orth S lope provides evidence for the origins of the Paleo‐ and Neo‐ E skimo peoples
Bibliographic Data
OBJECTIVES: All modern Iñupiaq speakers share a common origin, the result of a recent (∼800 YBP) and rapid trans-Arctic migration by the Neo-Eskimo Thule, who replaced the previous Paleo-Eskimo inhabitants of the region. Reduced mitochondrial haplogroup diversity in the eastern Arctic supports the archaeological hypothesis that the migration occurred in an eastward direction. We tested the hypothesis that the Alaskan North Slope served as the origin of the Neo- and Paleo-Eskimo populations further east. MATERIALS AND METHODS: We sequenced HVR I and HVR II of the mitochondrial D-loop from 151 individuals in eight Alaska North Slope communities, and compared genetic diversity and phylogenetic relationships between the North Slope Inupiat and other Arctic populations from Siberia, the Aleutian Islands, Canada, and Greenland. RESULTS: Mitochondrial lineages from the North Slope villages had a low frequency (2%) of non-Arctic maternal admixture, and all haplogroups (A2, A2a, A2b, D2a, and D4b1a-formerly known as D3) found in previously sequenced Neo- and Paleo-Eskimos and living Inuit and Eskimo peoples from across the North American Arctic. Lineages basal for each haplogroup were present in the North Slope. We also found the first occurrence of two haplogroups in contemporary North American Arctic populations: D2a, previously identified only in Aleuts and Paleo-Eskimos, and the pan-American C4. DISCUSSION: Our results yield insight into the maternal population history of the Alaskan North Slope and support the hypothesis that this region served as an ancestral pool for eastward movements to Canada and Greenland, for both the Paleo-Eskimo and Neo-Eskimo populations
Biology · Diversity (politics) · Ethnology · Evolutionary biology · Geography · Mitochondrial DNA · Sociology · Anthropology · Forensic and Genetic Research · Forensic Anthropology and Bioarchaeology Studies · Genetics · History · Pleistocene-Era Hominins and Archaeology
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| Unique citing works | 12 |
|---|---|
| Citations per year | 1,09 |
| Citation span | 2015 - 2026 (12) |
| Citation velocity | current |
| Highly cited | No |
| Citation types | Neutral: 11 |