You do the same
Nearly one-third of Native American genes come from west Eurasian peoples with ties to the Middle East and Europe
(“Great Surprise”—Native Americans Have West Eurasian Origins
http://news.nationalgeographic.com/news ... -american- people-migration-siberia-genetics/)
In that case, as it has been proposed, haplogroup X was brought to America by the eastward migration of an ancestral white population, of which no trace has so far been found in the mtDNA gene pool of modern Siberian/eastern Asian population”
(The Presence of Mitochondrial Haplogroup X in Altaians from South Siberia Am. J. Hum. Genet. 69:237–241, 2001)
“To date, haplogroup X has not been unambiguously identified in Asia, raising the possibility that some Native American founders were of Caucasian ancestry.”
http://www.sciencedirect.com/science/ar ... 9707616292“Overall, the sequence data and phylogenetic analysis suggest that the Native American and the European haplogroup X mtDNAs share a common maternal ancestor”
“The 14 Caucasian-European haplogroup X samples (designated “CE1”–“CE14”) included 2 Caucasians of European ancestry”
(MtDNA haplogroup X: An Ancient Link between Europe/Western Asia and North America Michael D. Brown,1 Seyed H. Hosseini,1 Antonio Torroni,2 Hans-Ju ̈rgenBandelt,3 Jon C. Allen,1 Theodore G. Schurr,1 Rosaria Scozzari,2 Fulvio Cruciani,2 and Douglas C. Wallace1)
“Phylogenetic analysis and coalescence estimates for American Indian and European haplogroup X mtDNAs exclude the possibility that the occurrence of haplogroup X in American Indians is due to recent European admixture.”
(The Presence of Mitochondrial haplogroup X in Altaians from South Siberia Am. J. Hum. Genet. 69:237–241, 2001)
Another problem with the Bering Ice bridge theory is that Polynesian DNA is found in South America. The idea that Polynesians migrated across the Bering Ice Bridge is ridiculous.
“The prevailing theory is that the first Americans arrived in a single wave, and all Native American populations today descend from this one group of adventurous founders. But now there’s a kink in that theory. “
“If Aleutian Islanders or their ancestors had somehow mixed with an Australasian group up north or made their way south to the Amazon, they’d leave genetic clues along the way. “It’s not a clear alternative,” argues Reich. “
“Three Amazonian groups—Suruí, Karitiana and Xavante—all had more in common with Australasians than any group in Siberia. “
“Both studies therefore suggest that the ancestry of the first Americans is a lot more complicated than scientists had envisioned.”
“There is a greater diversity of Native American founding populations than previously thought,” says Skoglund. “And these founding populations connect indigenous groups in far apart places of the world.”
http://www.smithsonianmag.com/science-n ... ans-links- amazon-indigenous-australians-180955976/?no-ist