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Allelic Frequencies and Statistical Data Obtained From 48 AIM INDEL Loci in an Admixed Population From the Brazilian Amazon

NCJ Number
Forensic Science International: Genetics Volume: 6 Issue: 1 Dated: January 2012 Pages: 132-135
Pablo Abdon da Costa Francez; Elzemar Martins Ribeiro-Rodrigues; Sidney Emanuel Batista dos Santos
Date Published
January 2012
4 pages
Allelic frequencies of 48 informative insert-delete (INDEL) loci were obtained from a sample set of 130 unrelated individuals living in Macapa, a city located in the northern Amazon region, in Brazil.
The values of heterozygosity (H), polymorphic information content (PIC), power of discrimination (PD), power of exclusion (PE), matching probability (MP) and typical paternity index (TPI) were calculated and showed the forensic efficiency of these genetic markers. Based on the allele frequency obtained for the population of Macapa, the authors estimated an interethnic admixture for the three parental groups (European, Native American, and African) of, respectively, 50 percent, 21 percent, and 29 percent. Comparing these allele frequencies with those of other Brazilian populations and the parental populations, statistically significant distances were found. The interpopulation genetic distance (F(ST) coefficients) to the present database ranged from F(ST)=0.0431 (p less than 0.00001) between Macapa and Belem to F(ST)=0.266 (p less than 0.00001) between Macapa and the Native American group. (Published Abstract)