RSS Cientifico geral Characterization of GlobalFiler loci in Angolan and Guinean populations inhabiting Southern Portugal

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We analyzed the GlobalFiler short tandem repeat (STR) loci for 152 and 70 unrelated individuals from Angolan and Guinean immigrant populations inhabiting Southern Portugal, respectively. After Bonferroni correction, no significant deviations from the Hardy-Weinberg equilibrium and linkage disequilibrium were detected for either population. For the Angolan population, SE33 was the most informative marker. In contrast, D5S818 and D13S317 were the least informative loci. The combined power of discrimination was 99.9999999999999999999999961907%. For the Guinean population, SE33 and D21S1 were the most informative loci, while D13S317 was the least. The combined power of discrimination was 99.99999999999999999999997915%. No significant differences were observed between Angolan, Guinean, and Afro-American populations for any of the analyzed STRs. The South African population presented significant differences at D22S1045 and D10S1248 when compared to Angola, and at D22S1045 when compared to Guinea-Bissau. The MDS plot and neighbor-joining tree analysis revealed that Angolan and Guinean populations are genetically close to African-American and South African populations, and genetically different from Korean, Mexican, European (including American-Caucasian), and Middle Eastern populations.​



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We analyzed the GlobalFiler short tandem repeat (STR) loci for 152 and 70 unrelated individuals from Angolan and Guinean immigrant populations inhabiting Southern Portugal, respectively. After Bonferroni correction, no significant deviations from the Hardy-Weinberg equilibrium and linkage disequilibrium were detected for either population. For the Angolan population, SE33 was the most informative marker. In contrast, D5S818 and D13S317 were the least informative loci. The combined power of discrimination was 99.9999999999999999999999961907%. For the Guinean population, SE33 and D21S1 were the most informative loci, while D13S317 was the least. The combined power of discrimination was 99.99999999999999999999997915%. No significant differences were observed between Angolan, Guinean, and Afro-American populations for any of the analyzed STRs. The South African population presented significant differences at D22S1045 and D10S1248 when compared to Angola, and at D22S1045 when compared to Guinea-Bissau. The MDS plot and neighbor-joining tree analysis revealed that Angolan and Guinean populations are genetically close to African-American and South African populations, and genetically different from Korean, Mexican, European (including American-Caucasian), and Middle Eastern populations.



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