mtDNA haplogroup X: an ancient link between Europe/Western Asia and North America?

Article Abstract:

A possible ancient link between Europe/Western Asia and North America in mtDNA haplogroup X is discussed with information on investigation of the origins, continental relationships and diversity of the haplogroup. Investigation was carried out with mtDNA high-resolution RFLP and complete control region sequence analysis of 14 putative European haplogroup X and 22 putative Native American haplogroup X mtDNAs and identified a consensus haplogroup X motif characterizing Native American and European samples, so some Native American founders may have had Caucasian ancestry.

United States, Canada, Europe, Germany, North America, Middle East, Asia, Archaeology, Native Americans, Native North Americans, Navajos, Mitochondrial DNA, Chromosome mapping, Caucasian race, Whites, Population genetics, Asians, Japanese, Japanese (Asian people), Indigenous peoples, Europeans, Caucasus region, Koreans, Tibetans, Mongols, Dakotas (Native American people), Dakotas (Native Americans), Ojibwas, Yakimas

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Combined use of biallelic and microsatellite Y-chromosome polymorphisms to infer affinities among African populations

Article Abstract:

Combined use of biallelic and microsatellite Y-chromosome polymorphisms in finding affinities among African populations is discussed. Seven biallelic polymorphic sites were studied to define Y-chromosome haplotypes. Data was combined with those from four dinucleotide-repeat polymorphisms. The object was to establish Y-chromosome compound superhaplotypes. Geographic closeness seems better as a predictor of genetic affinity than language and genetic similarities.

Spain, Africa, Phylogeny, Genetic polymorphisms, Linguistics, Y chromosome, Anthropological linguistics

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• Abstracts: Southeast Asian mitochondrial DNA analysis reveals genetic continuity of ancient mongoloid migrations. Native American mitochondrial DNA analysis indicates that the Amerind and the Nadene populations were founded by two independent migrations

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