Haplotype diversity of 17 Y-str loci in an admixed population from the Brazilian Amazon

Abstract

The allelic and haplotype frequencies of 17 Y-STR loci most commonly used in forensic testing were estimated in a ample of 138 unrelated healthy males from Macapá, in the northern Amazon region of Brazil. The average gene diversity as 0.6554 ± 0.3315. 134 haplotypes of the 17 loci were observed, 130 of them unique and four present in two ndividuals each. The haplotype diversity index was 0.9996 ± 0.0009, with the most frequent haplogroups being R1b 52.2%), E1b1b (11.6%), J2 (10.1%) and Q (7.2%). Most haplogroups of this population belonged to European male ineages (89.2%), followed by Amerindian (7.2%) and African (3.6%) lineages. © 2012, Sociedade Brasileira de Genética.