Forensic evaluation of the Asia Pacific ancestry-informative MAPlex assay.

TitleForensic evaluation of the Asia Pacific ancestry-informative MAPlex assay.
Publication TypeJournal Article
Year of Publication2020
AuthorsXavier, C, de la Puente, M, Phillips, C, Eduardoff, M, Heidegger, A, Mosquera-Miguel, A, Freire-Aradas, A, Lagace, R, Wootton, S, Power, D, Parson, W, Lareu, MV, Daniel, R
JournalForensic Sci Int Genet
Date Published2020 09

DNA intelligence, and particularly the inference of biogeographical ancestry (BGA) is increasing in interest, and relevance within the forensic genetics community. The majority of current MPS-based forensic ancestry-informative assays focus on the differentiation of major global populations. The recently published MAPlex (Multiplex for the Asia Pacific) panel contains 144 SNPs and 20 microhaplotypes and aims to improve the differentiation of populations in the Asia Pacific region. This study reports the first forensic evaluation of the MAPlex panel using AmpliSeq technology and Ion S5 sequencing. This study reports on the overall performance of MAPlex including the assay's sequence coverage distribution and stability, baseline noise and description of problematic SNPs. Dilution series, artificially degraded and mixed DNA samples were also analysed to evaluate the sensitivity of the panel with challenging or compromised forensic samples. As the first panel to combine biallelic SNPs, multiple-allele SNPs and microhaplotypes, the MAPlex assay demonstrated an enhanced capacity for mixture detection, not easily performed with common binary SNPs. This performance evaluation indicates that MAPlex is a robust, stable and highly sensitive assay that is applicable to forensic casework for the prediction of BGA.

Alternate JournalForensic Sci Int Genet
PubMed ID32615397
Grant ListUM1 HG008901 / HG / NHGRI NIH HHS / United States