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The male-mediated genetic legacy of the Pyrenean population was assessed through the analysis of 12 Y-STR and 27 Y-SNP loci in a sample of 169 males from 5 main geographical areas in the Spanish Pyrenees: Cinco Villas (Western Pyrenees), Jacetania and Valle de Arán (Central Pyrenees) and Alto Urgel and Cerdaña (Eastern Pyrenees). In the Iberian context, the Pyrenean samples present some specificities, being characterizeded by a high proportion of chromosomes R1b1b2-M269 (including the usually uncommon R1b1b2d-SRY2627 and R1b1b2c-M153 types) or I2a2-M26 and low proportions of other haplogroups. Our results indicate that an old pre-Neolithic substrate is preponderant in populations of the whole Pyrenean fringe. However, AMOVA revealed a high level of substructure within Pyrenean populations, partially explained by drift effects as well as by the signature of an ancient genetic differentiation between Western and Eastern Pyrenees. [ABSTRACT FROM AUTHOR]

Abstract: Haplotype frequencies for 15 Y-STRs (minimum haplotype plus DYS460, DYS461, DYS437, DYS438, DYS439, GATA H4, DYS635) were determined in a set of 42 samples from the Basque-speaking region of Cinco Villas (Navarra, Western Pyrenees). Thirty-five different haplotypes were detected (haplotype diversity=0.9919) and only seven were found in duplicate. These results are compared with available data on the populations of the Pyrenees region. [Copyright &y& Elsevier]