Abstract
We investigated 15 polymorphic short tandem repeat (STR) loci (D1S1656, D7S1517, D8S306, D8S639, D9S304, D10S2325, D11S488, D12S391, D14S608, D16S3253, D17S976, D18S1270, D19S253, D20S161, and D21S1437) which are not included in the standard sets of forensic loci. The markers were selected according to the complexity of the polymorphic region: Of the 15 investigated loci, 7 loci showed a simple repeat structure (D9S304, D10S2325, D14S608, D16S3253, D18S1270, D19S253, and D21S1437), 3 loci (D7S1517, D12S391, and D20S161) consisted of compound repeat units, and 5 loci (D1S1656, D8S306, D8S639, D11S488, and D17S976) showed a more complex polymorphic region partly including different repeat blocks and incomplete repeat units, which resulted in a relatively high proportion of intermediate alleles. A population study on a sample of 270 unrelated persons from Austria was carried out. We did not observe significant deviations from Hardy–Weinberg expectations. The combined probability of exclusion for the 15 loci was 0.99999998. In combination with the conventional set of STR markers included in commercially available kits (no linkage was observed between these 15 loci and the Powerplex 16 System loci), these markers are approved as highly discriminating forensic tools, also suitable for the analysis of difficult paternity and kinship constellations.
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Acknowledgements
The authors would like to thank Roswitha Mühlmann and Daniela Niederwieser for their valuable laboratory work.
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Table S1
Primer sequences and chromosomal locations for the markers investigated (DOC 31 kb)
Table S2
Repeat structure of sequenced alleles; flanking region additionally shown when sequence variants occurred (Grey = Primer sequence; Bold = polymorphic region; Bold = constant region within the polymorphic region; Italics = sequence variants) (DOC 27 kb)
Table S3
Classification of the 15 STR loci depending on the complexity of the polymorphic region according to [31]. (DOC 20 kb)
Table S4
Observed allele frequencies and summary of statistical analysis for the 15 STR loci in 270 unrelated individuals from Austria (HO observed heterozygosity, HE expected heterozygosity, E exact test probability values, PD power of discrimination, PE probability of exclusion) (DOC 123 kb)
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Grubwieser, P., Zimmermann, B., Niederstätter, H. et al. Evaluation of an extended set of 15 candidate STR loci for paternity and kinship analysis in an Austrian population sample. Int J Legal Med 121, 85–89 (2007). https://doi.org/10.1007/s00414-006-0079-9
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DOI: https://doi.org/10.1007/s00414-006-0079-9