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Published in: International Journal of Legal Medicine 4/2019

01-07-2019 | Methods Paper

Technical note: developmental validation of a novel 6-dye typing system with 36 Y-STR loci

Published in: International Journal of Legal Medicine | Issue 4/2019

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Abstract

Y-chromosomal short tandem repeats (Y-STRs) have proven to be very useful in investigating sexual assault cases and in paternity lineage differentiation. However, currently available commercial Y-STR multiplex amplification systems bear the limitations in the identification of related males from the same paternal lineage due to there being an insufficient number of loci in any single amplification kit. The aim of this study was to establish and validate a novel 6-dye, 36-plex Y-STR multiplex amplification system that incorporated all of the loci present in the Yfiler™ Plus kit (DYS19, DYS385a/b, DYF387S1, DYS389I/II, DYS390, DYS391, DYS392, DYS393, DYS437, DYS438, DYS439, DYS448, DYS449, DYS456, DYS458, DYS460, DYS481, DYS518, DYS533, DYS570, DYS576, DYS627, DYS635, Y_GATA_H4) as well as a further nine highly polymorphic Y-STR loci (DYS388, DYS444, DYS447, DYS522, DYS527a/b, DYS549, DYS596, DYS643). The novel system was optimized and validated by a series of studies that tested the effect of different PCR-based conditions as well as the species specificity, sensitivity, stability, stutter precision, suitability for use on DNA mixtures, reproducibility, and parallel testing of the system, as well as its performance on casework samples and population analysis, according to the SWGDAM developmental validation guidelines. A total of 246 haplotypes were found for the 36 Y-STRs among 247 Guangdong Han unrelated males. Collectively, the results demonstrate that the developed 36-plex Y-STR system is sensitive, robust, reliable, and highly informative for use in forensic genetics.
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Literature
1.
go back to reference Jobling MA, Pandya A, Tyler-Smith C (1997) The Y chromosome in forensic analysis and paternity testing. Int J Legal Med 110(3):118–124CrossRefPubMed Jobling MA, Pandya A, Tyler-Smith C (1997) The Y chromosome in forensic analysis and paternity testing. Int J Legal Med 110(3):118–124CrossRefPubMed
3.
go back to reference Ballantyne KN, Kayser M (2012) Additional Y-STRs in forensics: why, which, and when. Forensic Sci Rev 24(1):63–78PubMed Ballantyne KN, Kayser M (2012) Additional Y-STRs in forensics: why, which, and when. Forensic Sci Rev 24(1):63–78PubMed
15.
go back to reference Kayser M, Caglia A, Corach D, Fretwell N, Gehrig C, Graziosi G, Heidorn F, Herrmann S, Herzog B, Hidding M, Honda K, Jobling M, Krawczak M, Leim K, Meuser S, Meyer E, Oesterreich W, Pandya A, Parson W, Penacino G, Perez-Lezaun A, Piccinini A, Prinz M, Schmitt C, Roewer L et al (1997) Evaluation of Y-chromosomal STRs: a multicenter study. Int J Legal Med 110(3):125–133 141–129CrossRefPubMed Kayser M, Caglia A, Corach D, Fretwell N, Gehrig C, Graziosi G, Heidorn F, Herrmann S, Herzog B, Hidding M, Honda K, Jobling M, Krawczak M, Leim K, Meuser S, Meyer E, Oesterreich W, Pandya A, Parson W, Penacino G, Perez-Lezaun A, Piccinini A, Prinz M, Schmitt C, Roewer L et al (1997) Evaluation of Y-chromosomal STRs: a multicenter study. Int J Legal Med 110(3):125–133 141–129CrossRefPubMed
20.
go back to reference Walsh PS, Metzger DA, Higushi R (2013) Chelex 100 as a medium for simple extraction of DNA for PCR-based typing from forensic material. BioTechniques 10(4): 506-13 (April 1991). BioTechniques 54(3):134–139CrossRefPubMed Walsh PS, Metzger DA, Higushi R (2013) Chelex 100 as a medium for simple extraction of DNA for PCR-based typing from forensic material. BioTechniques 10(4): 506-13 (April 1991). BioTechniques 54(3):134–139CrossRefPubMed
21.
go back to reference Nunez C, Baeta M, Ibarbia N, Ortueta U, Jimenez-Moreno S, Blazquez-Caeiro JL, Builes JJ, Herrera RJ, Martinez-Jarreta B, de Pancorbo MM (2017) 17 to 23: a novel complementary mini Y-STR panel to extend the Y-STR databases from 17 to 23 markers for forensic purposes. Electrophoresis 38(7):1016–1021. https://doi.org/10.1002/elps.201600313 CrossRefPubMed Nunez C, Baeta M, Ibarbia N, Ortueta U, Jimenez-Moreno S, Blazquez-Caeiro JL, Builes JJ, Herrera RJ, Martinez-Jarreta B, de Pancorbo MM (2017) 17 to 23: a novel complementary mini Y-STR panel to extend the Y-STR databases from 17 to 23 markers for forensic purposes. Electrophoresis 38(7):1016–1021. https://​doi.​org/​10.​1002/​elps.​201600313 CrossRefPubMed
45.
go back to reference Gusmao L, Butler JM, Carracedo A, Gill P, Kayser M, Mayr WR, Morling N, Prinz M, Roewer L, Tyler-Smith C, Schneider PM (2006) DNA Commission of the International Society of Forensic Genetics (ISFG): an update of the recommendations on the use of Y-STRs in forensic analysis. Int J Legal Med 120(4):191–200CrossRefPubMed Gusmao L, Butler JM, Carracedo A, Gill P, Kayser M, Mayr WR, Morling N, Prinz M, Roewer L, Tyler-Smith C, Schneider PM (2006) DNA Commission of the International Society of Forensic Genetics (ISFG): an update of the recommendations on the use of Y-STRs in forensic analysis. Int J Legal Med 120(4):191–200CrossRefPubMed
47.
go back to reference Walsh PS, Fildes NJ, Reynolds R (1996) Sequence analysis and characterization of stutter products at the tetranucleotide repeat locus vWA. Nucleic Acids Res 24(14):2807–2812CrossRefPubMedPubMedCentral Walsh PS, Fildes NJ, Reynolds R (1996) Sequence analysis and characterization of stutter products at the tetranucleotide repeat locus vWA. Nucleic Acids Res 24(14):2807–2812CrossRefPubMedPubMedCentral
48.
go back to reference Leclair B, Fregeau CJ, Bowen KL, Fourney RM (2004) Systematic analysis of stutter percentages and allele peak height and peak area ratios at heterozygous STR loci for forensic casework and database samples. J Forensic Sci 49(5):968–980PubMed Leclair B, Fregeau CJ, Bowen KL, Fourney RM (2004) Systematic analysis of stutter percentages and allele peak height and peak area ratios at heterozygous STR loci for forensic casework and database samples. J Forensic Sci 49(5):968–980PubMed
Metadata
Title
Technical note: developmental validation of a novel 6-dye typing system with 36 Y-STR loci
Publication date
01-07-2019
Published in
International Journal of Legal Medicine / Issue 4/2019
Print ISSN: 0937-9827
Electronic ISSN: 1437-1596
DOI
https://doi.org/10.1007/s00414-018-1864-y

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