Korean population genetic data for eleven STR loci.
Allele frequency and forensic parameters for eleven STR loci were surveyed in a random sample from the Korean population.
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Allele frequency and forensic parameters for eleven STR loci were surveyed in a random sample from the Korean population.
DNA STR profiles have been generated from 1 ng and low copy number (LCN) templates using 28 and 34 cycles of amplification, respectively. Characteristics which facilitate the interpretation of profiles, such as heterozygous balance, allelic dropout and stutter proportions have been quantified. We demonstrate that a reduction in DNA template coupled with an increase in amplification cycle number produces an increased rate of allelic dropout out which can be correlated to the peak areas of those alleles observed. In addition, the LCN conditions increase the degree of peak area asymmetry observed from heterozygotes and the size range of stutters. Analysis of the data allows us to develop sets of guidelines appropriate for interpreting both single and mixed DNA profiles.
Over 1500 population database samples comprising African Americans, Caucasians, Hispanics, Native Americans, Chamorros and Filipinos were typed using the PowerPlex 16 and the Profiler Plus/COfiler kits. Except for the D8S1179 locus in Chamorros and Filipinos from Guam, there were eight examples in which a typing difference due to allele dropout was observed. At the D8S1179 locus in the population samples from Guam, there were 13 examples of allele dropout observed when using the Profiler Plus kit. The data support that the primers used in the PowerPlex 16, Profiler Plus, and COfiler kits are reliable for typing reference samples that are for use in CODIS. In addition, allele frequency databases have been established for the STR loci Penta D and Penta E. Both loci are highly polymorphic.
Allele and haplotype frequencies of seven Y-chromosome STR loci from samples of 108 unrelated Japanese males living in Aichi Prefecture.
Allele frequencies for 15 STR loci included in AmpFlSTR Profiler and AmpFlSTR SGM Plus kits were determined in a sample of 413 unrelated individuals living in the region of Podlasie (NE Poland)
Allele frequencies for the 15 STR locus of PowerPlex 16 were analyzed in 95 healthy unrelated individuals belonging to five important population groups inhabiting different part of India. Fifteen loci studied are Penta E, D18S51, D21S11, THO1,D3S1358, FGA, TPOX, D8S1179, vWA, Amelogenin, Penta D, CSF1PO, D16S539, D7S820, D13S317 and D5S818. In addition of all tetra nucleotide loci, two penta nucleotide loci Penta D and Penta E of the studied system are also found highly polymorphic in all the five studied populations of India. These loci are found highly informative in solving paternity cases and other forensic testing in studied population.
Allele frequencies for the three STR loci included in the GenePrint CTT multiplex system (HUMTH01, HUMTPOX, HUMCSF1PO) have been determined for the four major sub-populations of New Zealand.
Frequency data of short tandem repeats loci included in the SGM Plus kit and on two pentanucleotide STR loci: Penta E and Penta D [Profiles DNA 2 (1998) 2] included in the PowerPlex16 kit were collected from a sample of 400 (for SGM Plus) and 91 (for Penta E and Penta D) random, unrelated individuals born in the South Poland region.
Allele frequencies for nine STR loci namely, CSF1PO, D5S818, D8S1179, F13A01, F13B, TPOX, HUMvWA, HUMFGA and D3S1358 were obtained from a Chinese Han population from Henan province (middle China).
Population study was carried out on the sample of 167 unrelated donors from the wider area of the Croatia's capital, Zagreb, using the short tandem reapet (STR) loci: TH01, VWFA31, FES/FPS, F13A01, D1S1656, D12S391, D18S535 and D22S683.
Allele and haplotype frequencies for nine Y-specific STR loci (DYS19, DYS389-I, DYS389-II, DYS390, DYS391, DYS393, DYS434, DYS437, and DYS439) were obtained from a sample of 57 males from Guinea Equatorial.
Allele frequencies for the 15 STR loci included in the PowerPlex 16 kit were obtained from a sample of 247 unrelated Chinese in Hong Kong.
Allele frequencies of 10 STR loci included in the AmpFlSTR SGM Plus Kit (PE Applied Biosystem) was obtained a simple of 222 unrelated individuals residing in Warsaw (Poland) region.
The polymorphism of nine STR loci has been studied in a sample of 598 individuals from the population of Alagoas, Northeastern Brazil. Determination of the allele frequencies as well as of several commonly used statistics in forensic and paternity testing were defined. The most polymorphic loci were TH01 and D7S317. The exact test demonstrated that the nine loci analyzed in the population have no deviation from Hardy-Weinberg equilibrium (P > 0.05).
Allele and haplotype frequencies of nine Y-chromosome STR loci were determined from a sample of 508 unrelated males from north Poland. Three samples containing insertion polymorphism DYS19 (duplication) and DYS385I/II (triplications) were observed.
An aim of the European Network of Forensic Science Institutes (ENFSI) is to produce a DNA database of second generation multiplex (SGM) STR profiles that is representative of the resident cosmopolitan populations. To achieve this, data were collected from 24 different populations. All of the data were combined to form one database of 5700 profiles from which allele proportions were calculated. The robustness of this combined European database was tested by estimating parameter d for every DNA profile, where d=log(10)(Pm(c)/Pm(E)) Pm(c) is the match probability of the profile calculated from its cognate database and Pm(E) is the match probability of the combined European database. Overall there was a small tendency for Pm(c)>Pm(E) primarily because of sampling bias. This bias was removed by the simple expediency of applying an adjustment factor to the calculation of Pm(E). These were selected from the Balding size bias correction, the Balding and Nichols Fst correction, a minimum allele proportion (between 0.01 and 0.02), an upper bound of a 95% confidence interval (CI) and a lower bound on the genotype match probability. It was demonstrated that a single European database is a feasible proposition. A combination of different adjustment methods can be used to ensure that the result is conservative relative to the cognate database, and their effect measured by parameter d.
The short tandem repeat allelic profiles at to 15 autosomal polymorphic loci were analyzed in four tribal populations of Mizoram (India). The analysis was performed on 354 unrelated healthy individuals belonging to Mongoloid races. All the samples were subjected to sex test (Amelogenin marker) besides the STR typing and in all instances; it has shown no deviation from expectation. The allele frequencies for all the analyzed loci in the studied populations are within expected range in comparison to the populations from same racial background. No significant deviation from the Hardy-Weinberg Equilibrium was observed for all the populations. In no cases the observed heterozygosity is less than that of expected values and it varied from 0.978 (Penta E) to as low as 0.425 (THO1). The discriminatory power and exclusion probability values for all the analyzed markers are significantly high and thus reveal high forensic significance. There is no evidence for association of alleles among the 15 studied loci. This allele frequency data will be useful for human identity testing in Mizo population.
Allele frequencies for nine short tandem repeats (STR) loci: D3S1358, vWA, FGA, TH01, TPOX, CSF1PO, D5S818, D13S317 and D7S820 were determined in a Japanese population using the AmpFlSTR Profiler PCR amplification kit (Applied biosystems).