Insights into Iberian population origins through the construction of highly informative Y-chromosome haplotypes using biallelic markers, STRs, and the MSY1 minisatellite.
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.
Brion
M
M
Unit of Genetics, Institute of Legal Medicine, University of Santiago de Compostela, E-15782 Santiago de Compostela, Galicia, Spain.
Salas
A
A
González-Neira
A
A
Lareu
M V
MV
Carracedo
A
A
D044383:Black People; D041322:Chromosomes, Human, Y; D005819:Genetic Markers; D005828:Genetics, Population; D006239:Haplotypes; D006801:Humans; D018598:Minisatellite Repeats; D011110:Polymorphism, Genetic; D013030:Spain; D044465:White People
D005819:Genetic Markers