title: 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 sample of 138 unrelated healthy males from Macapá, in the northern Amazon region of Brazil. The average gene diversity was 0.6554 ± 0.3315. 134 haplotypes of the 17 loci were observed, 130 of them unique and four present in two individuals 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 lineages (89.2%), followed by Amerindian (7.2%) and African (3.6%) lineages.
authors.affiliation: Laboratório de Genética Forense, Departamento de Laboratórios Forenses, Polícia Científica do Amapá, Macapá, AP, Brazil.
authors.forename: Pablo Abdon da Costa
authors.initials: PA
authors.lastname: Francez
authors.forename: Luiz Patrick Vidal
authors.initials: LP
authors.lastname: Ramos
authors.forename: Teresinha
authors.initials: T
authors.lastname: de Jesus Brabo Ferreira Palha
authors.forename: Sidney Emanuel Batista
authors.initials: SE
authors.lastname: Dos Santos