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Genetic Analysis of Birnirk Inuit from the Alaskan North Slope
Author(s) -
Sarah L. Unkel,
Lauren E.Y. Norman,
Justin Tackney,
Anthony M. Krus,
Anne Jensen,
Claire Alix,
Owen K. Mason,
Dennis H. O’Rourke
Publication year - 2022
Publication title -
arctic
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 59
eISSN - 1923-1245
pISSN - 0004-0843
DOI - 10.14430/arctic74916
Subject(s) - peninsula , arctic , geography , population , archaeology , beringia , ecology , biology , demography , sociology
Archaeological evidence indicates that Birnirk peoples (AD 650 – 1300) are the proposed genetic ancestors of the Thule Inuit (AD 950 – 1400) and are potentially an intermediary population between the Thule Inuit and earlier Old Bering Sea people (AD 1 – 1000). We sequenced the first hypervariable region of the mitochondrial DNA of 22 clearly associated Birnirk individuals from the Piġniq (Birnirk), Kugok, Kugusugaruk, and Nunavak sites on the North Slope of Alaska. Haplotypes A2a, A2a1, A2a3, A2b1, and D4b1a2a1a were identified in this population, demonstrating an expansion of Birnirk maternal genetic diversity. Maternal lineages from these individuals were evaluated with other past and contemporary Inuit populations from the Chukotka Peninsula to eastern Greenland. Our findings confirm Birnirk Inuit as probable maternal ancestors to Thule Inuit and may be among the first peoples possessing these lineages to have moved into the western North American Arctic from the Bering Strait region.

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