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Distribution of Y‐chromosome q lineages in native americans
Author(s) -
BissoMachado Rafael,
Jota Marilza S.,
Ramallo Virginia,
PaixãoCôrtes Vanessa R.,
Lacerda Daniela R.,
Salzano Francisco M.,
Bonatto Sandro L.,
Santos Fabrício R.,
Bortolini Maria Cátira
Publication year - 2011
Publication title -
american journal of human biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.559
H-Index - 81
eISSN - 1520-6300
pISSN - 1042-0533
DOI - 10.1002/ajhb.21173
Subject(s) - distribution (mathematics) , chromosome , genetics , evolutionary biology , biology , y chromosome , mathematics , gene , mathematical analysis
Objectives: This investigation was performed to identify and evaluate the distribution of all 15 Y‐chromosome lineages belonging to the Q clade in a sample of natives from South America. Methods: One hundred and forty‐eight individuals from 20 Native American populations, as well as 24 Asian samples including Eskimos, were tested with 18 biallelic loci that can identify all currently known lineages of the Y‐Chromosome Q clade. Sequencing was performed in part of the sample (∼180,000 nucleotides, which detected, for instance, several downstream markers related to the Q1a3a lineage). Results: No new mutation was found and Q1a3a was consistently found in high frequencies in all populations, followed at a much lower frequency by Q1a3*, while Q1a3a derived‐lineages are probably population/tribe/region‐specific. Conclusion: The number of basal Y chromosome lineages in North America is apparently higher than in South America due probably to a bottleneck during the South American colonization and/or more recent Circum‐Arctic gene flow. Am. J. Hum. Biol., 2011. © 2011 Wiley‐Liss, Inc.