VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
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SNP analysis of challenging bone DNA samples using the HID‑Ion AmpliSeq™ Identity Panel : facts and artefactsFattorini, Paolo ...PCR-MPS is an emerging tool for the analysis of low-quality DNA samples. In this study, we used PCR-MPS to analyse 32 challenging bone DNA samples from three Second World War victims, which ... previously yielded no results in conventional STR PCR-CE typing. The Identity Panel was used with 27 cycles of PCR. Despite that we only had an average of 6.8 pg of degraded DNA as template, 30 out of 32 libraries (93.8%) produced sequencing data for about 63/90 autosomal markers per sample. Out of the 30 libraries, 14 (46.7%) yielded single source genetic profiles in agreement with the biological identity of the donor, whereas 12 cases (40.0%) resulted in SNP profiles that did not match or were mixed. The misleading outcomes for those 12 cases were likely due to hidden exogenous human contamination, as shown by the higher frequencies of allelic imbalance, unusual high frequencies of allelic drop-ins, high heterozygosity levels in the consensus profiles generated from challenging samples, and traces of amplified molecular products in four out of eight extraction negative controls. Even if the source and the time of the contamination were not identified, it is likely that it occurred along the multi-step bone processing workflow. Our results suggest that only positive identification by statistical tools (e.g. likelihood ratio) should be accepted as reliable; oppositely, the results leading to exclusion should be treated as inconclusive because of potential contamination issues. Finally, strategies are discussed for monitoring the workflow of extremely challenging bone samples in PCR-MPS experiments with an increased number of PCR cycles.Vir: International journal of legal medicine. - ISSN 0937-9827 (Vol. 137, 2023, str. 981-993)Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasleLeto - 2023Jezik - angleškiCOBISS.SI-ID - 154212355
Avtor
Fattorini, Paolo |
Previderè, Carlo |
Livieri, Tommaso |
Zupanc, Tomaž |
Zupanič-Pajnič, Irena
Teme
bone DNA |
SNP analysis |
DNA degradation |
DNK kosti |
analiza SNP |
razgradnja DNK
Vnos na polico
Trajna povezava
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Fattorini, Paolo | |
Previderè, Carlo | |
Livieri, Tommaso | |
Zupanc, Tomaž | 22072 |
Zupanič-Pajnič, Irena | 19053 |
Vir: Osebne bibliografije
in: SICRIS
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