This paper presents the allele frequencies and forensic parameters of the three miniSTR loci D10S1248, D14S1434 and D22S1045 in the Pomerania-Kujawy region of Poland. Genomic DNA was extracted by a standard phenol-chloroform extraction procedure. The three miniSTR loci D10S1248, D14S1434 and D22S1045 were amplified in a triplex polymerase chain reaction with the primer sets designed by Coble and Butler in a GeneAmp PCR System 9700 (Applied Biosystems). The amplified products were separated and detected by capillary electrophoresis on an ABI PRISM 3100 Genetic Analyzer (Applied Biosystems).The genotype frequency distributions showed no deviations from Hardy-Weinberg equilibrium expectations. The values of forensic parameters confirm that D10S1248 and D22S1045 are highly informative genetic markers, whereas D14S1434 is a moderately useful for forensic genetic identification purposes.
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Int J Legal Med
November 2024
Department of Forensic Science, School of Basic Medical Sciences, Central South University, No. 172. Tongzipo Road, Changsha, 410013, China.
The PowerPlex 35GY System (Promega, USA) is an advanced eight-dye multiplex STR kit, incorporating twenty-three autosomal STR loci, eleven Y chromosome STR loci, one sex determining marker Amelogenin, and two quality indicators. This multiplex system includes 20 CODIS loci and up to 15 mini-STR loci with sizing values less than 250 bases. In this study, validation for PowerPlex 35GY System was conducted following the guidelines of SWGDAM, encompassing sensitivity, precision, accuracy, concordance, species specificity, stutter, mixture, stability, and degraded DNA.
View Article and Find Full Text PDFBMC Genomics
April 2024
Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou, Guangdong, China.
Background: Previously, a novel multiplex system of 64 loci was constructed based on capillary electrophoresis platform, including 59 autosomal insertion/deletions (A-InDels), two Y-chromosome InDels, two mini short tandem repeats (miniSTRs), and an Amelogenin gene. The aim of this study is to evaluate the efficiencies of this multiplex system for individual identification, paternity testing and biogeographic ancestry inference in Chinese Hezhou Han (CHH) and Hubei Tujia (CTH) groups, providing valuable insights for forensic anthropology and population genetics research.
Results: The cumulative values of power of discrimination (CDP) and probability of exclusion (CPE) for the 59 A-InDels and two miniSTRs were 0.
Heliyon
November 2023
Department of Forensic Medicine, Guizhou Medical University, Guiyang, 550004, Guizhou, China.
Ann Hum Biol
February 2023
Department of Forensic Medicine, Guizhou Medical University, Guiyang, China.
Background: Insertion/deletion polymorphism (InDel), as the third genetic marker, has been given a lot of attention by forensic geneticists since it has the advantages of extensive distributions in the human genome, small amplicon, and low mutation rate. However, the extant InDel panels were only viewed as supplemental tools for kinship analyses. In addition, these panels were not conductive to mixture deconvolution because InDels in these panels mainly displayed two alleles.
View Article and Find Full Text PDFPLoS One
April 2022
Institute of Cytobiology, Dalian Medical University, Dalian, China.
Objectives: To assess the efficacy of Y-chromosome mini-STR-based next-generation sequencing (NGS) for non-invasive prenatal paternity testing (NIPPT).
Methods: DNA was extracted from the plasma of 24 pregnant women, and cell-free fetal DNA (cffDNA) haplotyping was performed at 12 Y-chromosome mini-STR loci using the Illumina NextSeq 500 system. The cffDNA haplotype was validated by the paternal haplotype.
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