The 17 Y-STR loci included in the AmpFLSTR Yfiler PCR Amplification Kit were analyzed in 98 unrelated healthy males from Apulia (Southern Italy). A total of 97 different haplotypes were identified, of which 96 haplotypes were unique and 1 occurred twice. Allele frequencies for each Y-STR locus in pooled sample and estimated value of gene diversity (GD) were evaluated. The lowest value of GD was observed for DYS392 (0.126) and the highest one (0.936) for DYS385. The HD (haplotype diversity) for the studied Y-STR set showed a value of 0.9994, with an HMP (haplotype match probability) value of 0.0006, while the overall DC was 98.98%. Microvariant alleles were found for the DYS458 and DYS385 markers and sequenced. Furthermore, Φ(st)-based genetic distance computation and pair-wise analysis of molecular variance (AMOVA) test were carried out. When comparing our population with the Apulia sample previously investigated, the AMOVA analysis detected no evidence for significant differentiation. The comparison with all Italian populations submitted to the YHRD website showed no relevant differences with all Southern Italian populations (San Giorgio La Molara, Belvedere, Trapani and Catania) and significant genetic deviation with all Northern Italian populations (Udine, Biella, La Spezia, Modena, Ravenna, Marche and North Sardinia). Moreover, the other populations and meta-populations belonging to the whole Mediterranean area (Croatia, Macedonia, Albania, Greece, Turkey, Israel, Libya, Tunisia, Algeria, Morocco and Spain) were different from our Apulia sample. The data were submitted to YHRD.
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