Objective: To analyze the genetic polymorphism of D16S539, D7S820 and D13S317 in Chinese Kazak ethnic population from Xinjiang.
Methods: One hundred and two unrelated individuals and a sample of families (n=42) were investigated by multiplex amplification, 6% denaturing PAGE and silver staining. And, the obtained allele frequencies were compared with those of other populations.
Results: Eight, seven, eight alleles were observed at the 3 STR loci respectively and the genotypes distributions were in accordance with Hardy-Weinberg equilibrium. The expected heterozygosities for these loci were 0.9439, 0.9356 and 0.9304; the calculated polymorphism formation content (PIC) was 0.9905; the discrimination power (DP), 0.9998; the paternity exclusion (PE), 0.9572. In addition, significant difference was found in comparison with other populations, and in the sample of families (n=42) no new mutations could be found.
Conclusion: The multiplex examination of 3 STR loci can be used in forensic identification and population genetics research.
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Genes (Basel)
November 2024
Institute of Forensic Science, Fudan University, Shanghai 200032, China.
Background/objectives: Short tandem repeat (STR) loci are widely used in forensic genetics for identification and kinship analysis. Traditionally, these loci were selected to avoid medical associations, but recent studies suggest that loci such as TH01 and D16S539 may be linked to psychiatric conditions like schizophrenia. This study explores these potential associations and considers the privacy implications related to disease susceptibility.
View Article and Find Full Text PDFBiochem Genet
October 2023
Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Health Campus, 16150, Kubang Kerian, Kelantan, Malaysia.
Autosomal short tandem repeat (STR) population data collected from a well characterized population are needed to correctly assigning the weight of DNA profiles in the courtroom and widely used for ancestral analyses. In this study, allele frequencies for the 15 autosomal short tandem repeat (STR) loci included in the AmpFlSTR® Identifiler® plus kit (D8S1179, D21S11, D7S820, CSF1PO, D3S1358, TH01, D13S317, D16S539, D2S1338, D19S433, VWA, TPOX, D18S51, D5S818, FGA) were obtained by genotyping 332 unrelated individuals of Ghanaian origin. Statistical tests on STR genotype data showed no significant departure from Hardy-Weinberg equilibrium (HWE).
View Article and Find Full Text PDFAnn Hum Biol
September 2022
Department of Forensic Science, Punjabi University, Patiala, India.
Background: STR (Short Tandem Repeat) markers are highly polymorphic markers, which are widely used in forensics DNA analysis and aid to ascertain unique genotype profiles of individuals and determine the genetic diversity of the given population.
Aim: In the present study, an attempt has been made to evaluate the population genetic diversity of the Ramgharia Sikh population of Punjab, India, using 21 autosomal STR loci (D3S1358, vWA, D16S539, CSF1PO, TPOX, D8S1179, D21S11, D18S51, D2S441, D19S433, TH01, FGA, D22S1045, D5S818, D13S317, D7S820, SE33, D10S1248, D1S1656, D12S391, and D2S1338) to augment the emerging forensic database related to the indigenous population of India.
Subjects And Methods: For generation of the database, 200 (blood on FTA card) samples were obtained from genetically unrelated Ramgharia Sikhs residing in the state of Punjab.
Biochem Genet
February 2022
College of Medicine & Forensic, Health Science Center, Xi'an Jiao Tong University, 76 Yan Ta West Road, Xi'an, 710061, Shaanxi, People's Republic of China.
Rwanda is one of the smallest countries of Africa, where forensic genetic studies are rarely being conducted and very few DNA databases have been developed. Short tandem repeats (STRs) polymorphisms were investigated in 505 unrelated Rwandese by using the HUMDNA TYPING (Yanhuang) Kit. The following STRs were targeted: D3S1358, D13S317, D7S820, D16S539, SE33, D10S1248, D5S818, D21S11, TPOX, D1S1656, D6S1043, D19S433, D22S1045, D8S1179, Penta E, D2S441, D12S391, D2S1338, vWA, Penta D, TH01, D18S51, CSF1PO and FGA.
View Article and Find Full Text PDFForensic Sci Int
July 2021
Department of Forensic Genetics, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China. Electronic address:
With the widespread use of STR in identification of individuals, paternity testing, as well as population genetics, many commercially robust and validated STR multiplex kits were developed. The AGCU Expressmarker 30 Kit is a new autosomal STR system that contains 29 autosomal STR loci (D3S1358, vWA, D1S1656, CSF1PO, D8S1132, D19S253, D3S3045, D8S1179, D21S11, D16S539, TPOX, D6S477, Penta D, D2S441, D5S818, TH01, FGA, D15S659, D22S1045, D19S433, D13S317, D7S820, D6S1043, D10S1435, D10S1248, D2S1338, D18S51, D12S391, and Penta E), one insertion/deletion polymorphic marker on the Y chromosome (Y indel), and the amelogenin locus. A series of validation studies were performed in this context according to the guidelines of "Validation Guidelines for Forensic DNA Analysis Methods".
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