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Int J Legal Med ; 126(4): 491-6, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21647760

RESUMO

Insertion-deletion (INDEL) markers are very frequent in the human genome and present several advantages for population and forensic studies, such as low mutation rates, easy interpretation, small amplicons, easy genotyping, and the possibility of using multiplex PCR. The great adaptability of INDELs for amplification of low copy number or degraded DNA allows its using as an interesting platform of genetic identity by DNA in forensic cases. In the present study, we tested the ability of 48 diallelic INDEL markers on genotyping forensic samples collected from different biological samples related to criminal cases. Moreover, we evaluated the lowest DNA concentration with which there was amplification of all markers from each one of three indel-plex panels. When comparing the performances obtained by the indel-plex panels described in this study with results obtained using Identifiler® kit (Applied Biosystems) related to forensic samples, as well as to control samples with different concentrations of DNA, we observed superior efficiency on samples with low copy number or in the presence of inhibitors.


Assuntos
Impressões Digitais de DNA/métodos , Mutação INDEL , Polimorfismo de Nucleotídeo Único , DNA/análise , Eletroforese , Feminino , Genoma Humano , Genótipo , Humanos , Masculino , Repetições de Microssatélites , Reação em Cadeia da Polimerase , Grupos Raciais/genética
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