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

• Main Authors: Pablo Abdon da Costa Francez, Luiz Patrick Vidal Ramos, Teresinha de Jesus Brabo Ferreira Palha, Sidney Emanuel Batista dos Santos
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Genética 2012-01-01
• Series: Genetics and Molecular Biology
• Subjects: Amazon population; forensic genetics; haplogroups; Y-haplotypes; Y-STR
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000100006

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.