Wednesday 28 September 2005
The Eskimo-Aleut language phylum is distributed from coastal Siberia across Alaska and Canada to Greenland and is well distinguished from the neighboring Na Dene languages. Genetically, however, the distinction between Na Dene and Eskimo-Aleut speakers is less clear.
hypervariable segment I (HVS-I) of the mitochondrial DNA
Major mtDNA types are shared between Na Dene and Eskimo, indicating a common Beringian history within the Holocene.(10924403)
There is an Eskimo-specific mtDNA subgroup characterized by nucleotide position 16265G within mtDNA group A2. This subgroup is found in all Eskimo groups analyzed so far and is estimated to have originated < 3,000 years ago. (10924403)
A founder analysis of all Eskimo and Chukchi A2 types indicates that the Siberian and Greenland ancestral mtDNA pools separated around the time when the Neo-Eskimo culture emerged. (10924403)
The Greenland mtDNA types are a subset of the Alaskan mtDNA variation: they lack the subhaplogroup D2 and subhaplogroup D3 found in Siberia and Alaska and are exclusively subhaplogroup A2 but at the same time lack the A2 root type. (10924403)
Bosch E, Calafell F, Rosser ZH, Norby S, Lynnerup N, Hurles ME, Jobling MA. High level of male-biased Scandinavian admixture in Greenlandic Inuit shown by Y-chromosomal analysis. Hum Genet. 2003 Apr;112(4):353-63. PMID: 12594533