Malhi, Ripan S.; Smith, David Glenn (September 2002). "Brief communication: Haplogroup X confirmed in prehistoric North America". American Journal of Physical Anthropology. 119 (1): 84–86. doi:10.1002/ajpa.10106. hdl:2027.42/34275. PMID12209576.
Kujanová, Martina; Pereira, Luísa; Fernandes, Verónica; Pereira, Joana B.; Černý, Viktor (October 2009). "Near Eastern Neolithic genetic input in a small oasis of the Egyptian Western Desert". American Journal of Physical Anthropology. 140 (2): 336–346. doi:10.1002/ajpa.21078. PMID19425100.
Bradley, Bruce; Stanford, Dennis (December 2004). "The North Atlantic ice-edge corridor: A possible Palaeolithic route to the New World". World Archaeology. 36 (4): 459–478. doi:10.1080/0043824042000303656. S2CID161534521.
"The similarities in ages and geographical distributions for C4c and the previously analyzed X2a lineage provide support to the scenario of a dual origin for Paleo-Indians. Taking into account that C4c is deeply rooted in the Asian portion of the mtDNA phylogeny and is indubitably of Asian origin, the finding that C4c and X2a are characterized by parallel genetic histories definitively dismisses the controversial hypothesis of an Atlantic glacial entry route into North America. Hooshiar Kashani B, Perego UA, Olivieri A, Angerhofer N, Gandini F, Carossa V, Lancioni H, Semino O, Woodward SR, Achilli A, Torroni A (January 2012). "Mitochondrial haplogroup C4c: a rare lineage entering America through the ice-free corridor?". American Journal of Physical Anthropology. 147 (1): 35–39. doi:10.1002/ajpa.21614. PMID22024980.
"X2a has not been found anywhere in Eurasia, and phylogeography gives us no compelling reason to think it is more likely to come from Europe than from Siberia. Furthermore, analysis of the complete genome of Kennewick Man, who belongs to the most basal lineage of X2a yet identified, gives no indication of recent European ancestry and moves the location of the deepest branch of X2a to the West Coast, consistent with X2a belonging to the same ancestral population as the other founder mitochondrial haplogroups. Nor have any high-resolution studies of genome-wide data from Native American populations yielded any evidence of Pleistocene European ancestry or trans-Atlantic gene flow." Raff, Jennifer A.; Bolnick, Deborah A (2015). "Does Mitochondrial Haplogroup X Indicate Ancient Trans-Atlantic Migration to the Americas? A Critical Re-Evaluation". PaleoAmerica. 1 (4): 297–304. doi:10.1179/2055556315Z.00000000040.
genebase.com
"Learn about Y-DNA Haplogroup Q". Wendy Tymchuk – Senior Technical Editor. Genebase Systems. 2008. Archived from the original(Verbal tutorial possible) on 22 June 2010. Retrieved 21 November 2009.
handle.net
hdl.handle.net
Malhi, Ripan S.; Smith, David Glenn (September 2002). "Brief communication: Haplogroup X confirmed in prehistoric North America". American Journal of Physical Anthropology. 119 (1): 84–86. doi:10.1002/ajpa.10106. hdl:2027.42/34275. PMID12209576.
Malhi, Ripan S.; Smith, David Glenn (September 2002). "Brief communication: Haplogroup X confirmed in prehistoric North America". American Journal of Physical Anthropology. 119 (1): 84–86. doi:10.1002/ajpa.10106. hdl:2027.42/34275. PMID12209576.
Kujanová, Martina; Pereira, Luísa; Fernandes, Verónica; Pereira, Joana B.; Černý, Viktor (October 2009). "Near Eastern Neolithic genetic input in a small oasis of the Egyptian Western Desert". American Journal of Physical Anthropology. 140 (2): 336–346. doi:10.1002/ajpa.21078. PMID19425100.
"The similarities in ages and geographical distributions for C4c and the previously analyzed X2a lineage provide support to the scenario of a dual origin for Paleo-Indians. Taking into account that C4c is deeply rooted in the Asian portion of the mtDNA phylogeny and is indubitably of Asian origin, the finding that C4c and X2a are characterized by parallel genetic histories definitively dismisses the controversial hypothesis of an Atlantic glacial entry route into North America. Hooshiar Kashani B, Perego UA, Olivieri A, Angerhofer N, Gandini F, Carossa V, Lancioni H, Semino O, Woodward SR, Achilli A, Torroni A (January 2012). "Mitochondrial haplogroup C4c: a rare lineage entering America through the ice-free corridor?". American Journal of Physical Anthropology. 147 (1): 35–39. doi:10.1002/ajpa.21614. PMID22024980.
Bradley, Bruce; Stanford, Dennis (December 2004). "The North Atlantic ice-edge corridor: A possible Palaeolithic route to the New World". World Archaeology. 36 (4): 459–478. doi:10.1080/0043824042000303656. S2CID161534521.
web.archive.org
"Learn about Y-DNA Haplogroup Q". Wendy Tymchuk – Senior Technical Editor. Genebase Systems. 2008. Archived from the original(Verbal tutorial possible) on 22 June 2010. Retrieved 21 November 2009.