Journal
HUMAN BIOLOGY
Volume 82, Issue 4, Pages 433-456Publisher
WAYNE STATE UNIV PRESS
DOI: 10.3378/027.082.0406
Keywords
NATIVE SOUTH AMERINDIAN; MBYA-GUARANI; Y-CHROMOSOME STRS; MTDNA; AUTOSOMAL STRS
Categories
Funding
- CONICET [PIP6114, Res. 1106]
- University of Buenos Aires [UBACyT.B-047]
Ask authors/readers for more resources
Autosomal STRs, Y-chromosome markers, and mitochondrial DNA sequences were investigated in six Mbya-Guarani villages (Fortin M'Borore, Yryapu, Tabay, Kaaguy Poty, Jejy, and Yaboti), all of them settled within the province of Misiones, northeastern Argentina. One hundred twenty-one unrelated individuals were analyzed. The study involved typing fifteen autosomal STRs, nine Y-chromosome STRs, and four biallele loci in the nonrecombinant region of the Y chromosome, sequencing the mtDNA of hypervariable regions I and II, and detecting the 9-bp ins/del in region V of mtDNA. All autosomal STRs were in Hardy-Weinberg equilibrium. The four major native American mtDNA haplogroups were represented in the sample. Haplogroups A2 and D1 exhibited the highest frequencies (40.5% and 36.0%, respectively), and haplogroups B2 and C1 appeared to be less frequent (17.5% and 6.0%, respectively). The native American haplogroup Q1a3a was observed in a relevant proportion (88.8%). In addition, a nine-STR Y-chromosome haplotype (DYS19*13, DYS389I*14, DYS389II*31, DYS390*24, DYS391*11, DYS392*14, DYS393*11, DYS385A*14, DYS385B*16) exhibited a frequency of more than 36%. Our results indicate that the analyzed Argentinean Guarani individuals are genetically more closely related to Guarani from Brazil [genetic distance (Delta mu)(2) = 0.48] than to other related tribes that are geographically closer. Statistical approaches based on autosomal data do not support the hypothesis of genetic drift previously proposed; however, this apparent discrepancy might be due to the lack of sensitivity of the autosomal markers used here.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available