Brief communication: Restricted geographic distribution for Y-Q* paragroup in South America
Article first published online: 9 JUL 2009
Copyright © 2009 Wiley-Liss, Inc.
American Journal of Physical Anthropology
Volume 140, Issue 3, pages 578–582, November 2009
How to Cite
Bailliet, G., Ramallo, V., Muzzio, M., García, A., Santos, M. R., Alfaro, E. L., Dipierri, J. E., Salceda, S., Carnese, F. R., Bravi, C. M., Bianchi, N. O. and Demarchi, D. A. (2009), Brief communication: Restricted geographic distribution for Y-Q* paragroup in South America. Am. J. Phys. Anthropol., 140: 578–582. doi: 10.1002/ajpa.21133
- Issue published online: 6 OCT 2009
- Article first published online: 9 JUL 2009
- Manuscript Accepted: 29 MAY 2009
- Manuscript Received: 5 DEC 2008
- Antorchas Foundation of Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas de la República Argentina (CONICET)
- Y chromosome;
- south America
We analyzed 21 paragroup Q* Y chromosomes from South American aboriginal and urban populations. Our aims were to evaluate the phylogenetic status, geographic distribution, and genetic diversity in these groups of chromosomes and compare the degree of genetic variation in relation to Q1a3a haplotypes. All Q* chromosomes from our series and five samples from North American Q* presented the derivate state for M346, that is present upstream to M3, and determined Q1a3* paragroup. We found a restrictive geographic distribution and low frequency of Q1a3* in South America. We assumed that this low frequency could be reflecting extreme drift effects. However, several estimates of gene diversity do not support the existence of a severe bottleneck. The mean haplotype diversity expected was similar to that for South American Q1a3* and Q1a3a (0.478 and 0.501, respectively). The analysis of previous reports from other research groups and this study shows the highest frequencies of Q* for the West Corner and the Grand Chaco regions of South America. At present, there is no information on whether the phylogenetic status of Q* paragoup described in previous reports is similar to that of Q1a3* paragroup though our results support this possibility. Am J Phys Anthropol, 2009. © 2009 Wiley-Liss, Inc.