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Moura-Neto RS, Mello ICT, Silva R, Maette APC, Bottino CG, Woerner A, King J, Wendt F, Budowle B. Evaluation of InnoTyper® 21 in a sample of Rio de Janeiro population as an alternative forensic panel. Int J Legal Med 2017; 132:149-151. [PMID: 28748403 DOI: 10.1007/s00414-017-1642-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 07/04/2017] [Indexed: 10/19/2022]
Abstract
The use of bi-allelic markers such as retrotransposable element insertion polymorphisms or Innuls (for insertion/null) can overcome some limitations of short tandem repeat (STR) loci in typing forensic biological evidence. This study investigated the efficiency of the InnoTyper® 21 Innul markers in an urban admixed population sample in Rio de Janeiro (n = 40) and one highly compromised sample collected as evidence by the Rio de Janeiro police. No significant departures from Hardy-Weinberg equilibrium were detected after the Bonferroni correction (α' ≈ 0.05/20, p < 0.0025), and no significant linkage disequilibrium was observed between markers. Assuming loci independence, the cumulative random match probability (RMP) was 2.3 × 10-8. A lower mean Fis value was obtained for this sample population compared with those of three North American populations (African-American, Southwest Hispanic, US Caucasian). Principal component analysis with the three North American populations and one from 21 East Asian population showed that African Americans segregated as an independent group while US Caucasian, Southwest Hispanic, East Asian, and Rio de Janeiro populations are in a single large heterogeneous group. Also, a full Innuls profile was produced from an evidence sample, despite the DNA being highly degraded. In conclusion, this system is a useful complement to standard STR kits.
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Affiliation(s)
- R S Moura-Neto
- Laboratório de Biologia Molecular Forense, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
| | - I C T Mello
- Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - R Silva
- Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - A P C Maette
- Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - C G Bottino
- Policia Civil do Estado do Rio de Janeiro, Instituto de Pesquisas e Perícias em Genética Forense, Rio de Janeiro, RJ, Brazil
| | - A Woerner
- Center for Human Identification, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - J King
- Center for Human Identification, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - F Wendt
- Center for Human Identification, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - B Budowle
- Center for Human Identification, University of North Texas Health Science Center, Fort Worth, TX, USA.,Center of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, Jeddah, Saudi Arabia
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