TY - JOUR
T1 - Evaluation of the Precision ID Ancestry Panel for crime case work
T2 - A SNP typing assay developed for typing of 165 ancestral informative markers
AU - Pereira, Vania
AU - Mogensen, Helle S
AU - Børsting, Claus
AU - Morling, Niels
N1 - Copyright © 2017 Elsevier B.V. All rights reserved.
PY - 2017/5/1
Y1 - 2017/5/1
N2 - The application of massive parallel sequencing (MPS) methodologies in forensic genetics is promising and it is gradually being implemented in forensic genetic case work. One of the major advantages of these technologies is that several traditional electrophoresis assays can be combined into one single MPS assay. This reduces both the amount of sample used and the time of the investigations. This study assessed the utility of the Precision ID Ancestry Panel (Thermo Fisher Scientific, Waltham, USA) in forensic genetics. This assay was developed for the Ion Torrent PGM™ System and genotypes 165 ancestry informative SNPs. The performance of the assay and the accompanying software solution for ancestry inference was assessed by typing 142 Danes and 98 Somalis. Locus balance, heterozygote balance, and noise levels were calculated and future analysis criteria for crime case work were estimated. Overall, the Precision ID Ancestry Panel performed well, and only minor changes to the recommended protocol were implemented. Three out of the 165 loci (rs459920, rs7251928, and rs7722456) had consistently poor performance, mainly due to misalignment of homopolymeric stretches. We suggest that these loci should be excluded from the analyses. The different statistical methods for reporting ancestry in forensic genetic case work are discussed.
AB - The application of massive parallel sequencing (MPS) methodologies in forensic genetics is promising and it is gradually being implemented in forensic genetic case work. One of the major advantages of these technologies is that several traditional electrophoresis assays can be combined into one single MPS assay. This reduces both the amount of sample used and the time of the investigations. This study assessed the utility of the Precision ID Ancestry Panel (Thermo Fisher Scientific, Waltham, USA) in forensic genetics. This assay was developed for the Ion Torrent PGM™ System and genotypes 165 ancestry informative SNPs. The performance of the assay and the accompanying software solution for ancestry inference was assessed by typing 142 Danes and 98 Somalis. Locus balance, heterozygote balance, and noise levels were calculated and future analysis criteria for crime case work were estimated. Overall, the Precision ID Ancestry Panel performed well, and only minor changes to the recommended protocol were implemented. Three out of the 165 loci (rs459920, rs7251928, and rs7722456) had consistently poor performance, mainly due to misalignment of homopolymeric stretches. We suggest that these loci should be excluded from the analyses. The different statistical methods for reporting ancestry in forensic genetic case work are discussed.
U2 - 10.1016/j.fsigen.2017.02.013
DO - 10.1016/j.fsigen.2017.02.013
M3 - Journal article
C2 - 28273506
SN - 1872-4973
VL - 28
SP - 138
EP - 145
JO - Forensic Science International: Genetics
JF - Forensic Science International: Genetics
ER -
