Insights into Iberian population origins through the construction of highly informative Y-chromosome haplotypes using biallelic markers, STRs, and the MSY1 minisatellite
✍ Scribed by M. Brion; A. Salas; A. González-Neira; M.V. Lareu; A. Carracedo
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 224 KB
- Volume
- 122
- Category
- Article
- ISSN
- 0002-9483
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✦ Synopsis
Abstract
To investigate the diversity of Y chromosomes in the Iberian Peninsula and the North African population of Maghreb, we constructed superhaplotypes on the basis of 10 biallelic markers, 7 microsatellites, and 1 minisatellite located in the nonrecombining portion of the human Y chromosome. The analysis of extremely high MSY1 variability was performed by reducing the MVR‐codes to modular structures. Y‐STRs and MSY1 data provide information about the relationship between closely related populations such as those of Iberia. Analysis of biallelic markers allowed us to identify 7 of 12 haplogroups defined by those polymorphisms. The haplogroup background showed clear differences between Iberian populations and the North African one. The use of differently mutating Y‐chromosome markers allowed us to infer different population events at different time scales: the Paleolithic background of the Iberian Peninsula, the Neolithic fingerprint on Y‐chromosome lineages, and the Iron Age influence in the populations of Iberia. Implications of our results for the highly debated origin of Basques are also discussed. Am J Phys Anthropol, 2003. © 2003 Wiley‐Liss, Inc.