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Du W, Zheng X, Jiang L, Li S, Lan S, Ye Y, Liu J. Forensic characteristics and genetic structure of the Chinese Tibetan population revealed by 38 X-chromosomal InDel loci. Forensic Sci Int 2024; 356:111961. [PMID: 38377671 DOI: 10.1016/j.forsciint.2024.111961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 01/04/2024] [Accepted: 02/04/2024] [Indexed: 02/22/2024]
Abstract
With the increasing importance of X-chromosome (Chr-X) genotyping in kinship identification, the exploitation of X chromosome genetic marker multiplex kits is increasing. The Human X-InDels amplification kit is a novel developed system which contained 38 X-chromosomal Insertion/deletion markers (X-InDels) and Amelogenin. Herein, we investigated the genetic diversity of the 38 X-InDels in the Tibetan ethnic minority (n = 792) from seven regions and evaluated the application potential of this novel panel. The rs16368 was the least variable locus, whereas the most polymorphic locus was the rs59605609 in Tibetan population. We confirmed three linkage groups with the haplotype diversities ranged from 0.5032 to 0.5976. The overall combined power of discrimination (PD) in males and females were 0.999999999582066 and 0.999999999999993, respectively. And the overall combined mean exclusion chance (MEC) values were not lower than 0.999125526990159. In addition, we explored the genetic relationships among the Tibetans in seven different regions via series of population comparison analyses, finding that the genetic relationship between the Ngari Tibetan and Chamdo Tibetan was the farthest, which was consistent with geographical distribution.
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Affiliation(s)
- Weian Du
- Key Laboratory of Evidence Science (China University of Political Science and Law), Ministry of Education, Beijing 100088, China; Institute of Forensic Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China; Guangdong Homy Genetics Incorporation, Foshan 528000, China
| | - Xinyue Zheng
- Institute of Forensic Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Lirong Jiang
- Institute of Forensic Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Suyu Li
- Institute of Forensic Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Shengnan Lan
- Department of Forensic Toxicological Analysis, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Yi Ye
- Department of Forensic Toxicological Analysis, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China.
| | - Jing Liu
- Key Laboratory of Evidence Science (China University of Political Science and Law), Ministry of Education, Beijing 100088, China; Institute of Forensic Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China.
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2
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Forensic Applications of Markers Present on the X Chromosome. Genes (Basel) 2022; 13:genes13091597. [PMID: 36140765 PMCID: PMC9498577 DOI: 10.3390/genes13091597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/23/2022] [Accepted: 09/02/2022] [Indexed: 11/17/2022] Open
Abstract
Microsatellite genetic markers are the gold standard for human genetic identification. Forensic analyses around the world are carried out through protocols using the analysis of STR markers in autosomal chromosomes and in the Y chromosome to solve crimes. However, these analyses do not allow for the resolution of all cases, such as rape situations with suspicion of incest, paternity without a maternal sample for comparison, and biological traces with DNA mixture where the profile sought is female, among other situations. In these complex cases, the study of X-chromosome STR markers significantly increases the probability of identification by complementing the data obtained for autosomal and Y-chromosome markers, due to the unique structure of the X chromosome and its exclusive method of inheritance. However, there are currently no validated Brazilian protocols for this purpose, nor are there any population data necessary for statistical analyses that must be included in the issuance of expert reports. Thus, the aim of this article is to provide a literary review of the applications of X-chromosomal markers in population genetics.
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3
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Gaviria A, Cadena-Ullauri S, Cevallos F, Guevara-Ramirez P, Ruiz-Pozo V, Tamayo-Trujillo R, Paz-Cruz E, Zambrano AK. Clinical, cytogenetic, and genomic analyses of an Ecuadorian subject with Klinefelter syndrome, recessive hemophilia A, and 1;19 chromosomal translocation: a case report. Mol Cytogenet 2022; 15:40. [PMID: 36064723 PMCID: PMC9446752 DOI: 10.1186/s13039-022-00618-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/24/2022] [Indexed: 12/02/2022] Open
Abstract
Background Hemophilia A is considered one of the most common severe hereditary disorders. It is an X-linked recessive disease caused by a deficiency or lack of function of the blood clotting factor VIII. Klinefelter syndrome is a genetic disorder that affects male individuals due to one or more extra X chromosomes, present in all cells or with mosaicism. The aneuploidy is due to either mitotic or meiotic chromosome non-disjunction. Chromosomal translocations are a group of genome abnormalities in which a region or regions of a chromosome break and are transferred to a nonhomologous chromosome or a new location in the same chromosome. Case presentation Our subject was born in Ecuador at 36 weeks of gestation by vaginal delivery. At 3 months old, the Factor VIII activity measure showed a 23.7% activity indicating a diagnosis of mild hemophilia A. At 1 year old, the karyotype showed an extra X chromosome, consistent with a diagnosis of Klinefelter syndrome, and a translocation between the long arms of chromosomes 1 and 19, at positions q25 and q13, respectively. Conclusions Klinefelter syndrome and hemophilia are a rare combination. In the present case report, the subject presents both, meaning that he has inherited one X chromosome from the father and one X chromosome from the mother. Since the father has severe hemophilia A; and the subject presents a below 40% Factor VIII activity, a skewed X inactivation is suggested. Additionally, the proband presents a translocation with the karyotype 47,XXY,t(1;19)(q25;q13). No similar report with phenotypic consequences of the translocation was found. The present report highlights the importance of a correct diagnosis, based not only on the clinical manifestations of a disease but also on its genetic aspects, identifying the value of integrated diagnostics. The subject presents three different genetic alterations, Klinefelter syndrome, hemophilia A, and a 1;19 chromosomal translocation. Supplementary Information The online version contains supplementary material available at 10.1186/s13039-022-00618-w.
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Affiliation(s)
- Anibal Gaviria
- Laboratorio de Genética Molecular, Centros Médicos Especializados Cruz Roja Ecuatoriana, Quito, Ecuador.,Hemocentro Nacional, Cruz Roja Ecuatoriana, Quito, Ecuador
| | - Santiago Cadena-Ullauri
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Francisco Cevallos
- Laboratorio de Genética Molecular, Centros Médicos Especializados Cruz Roja Ecuatoriana, Quito, Ecuador.,Hemocentro Nacional, Cruz Roja Ecuatoriana, Quito, Ecuador
| | - Patricia Guevara-Ramirez
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Viviana Ruiz-Pozo
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Rafael Tamayo-Trujillo
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Elius Paz-Cruz
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Ana Karina Zambrano
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador.
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4
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Curtis R, Ward D, Taylor D, Henry J. Investigation of X-STR haplotype diversity in the Australian Aboriginal population. AUST J FORENSIC SCI 2022. [DOI: 10.1080/00450618.2022.2048690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Rhianna Curtis
- Division of Biology, Forensic Science SA, Adelaide, South Australia
| | - Denise Ward
- Division of Biology, Forensic Science SA, Adelaide, South Australia
| | - Duncan Taylor
- Division of Biology, Forensic Science SA, Adelaide, South Australia
- College of Science and Engineering, Flinders University of South Australia, Adelaide, South Australia
| | - Julianne Henry
- Division of Biology, Forensic Science SA, Adelaide, South Australia
- College of Science and Engineering, Flinders University of South Australia, Adelaide, South Australia
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Li XN, Adnan A, Hadi S, Al-Qahtani WS, Alwaili MA, Alshaya DS, Jalal AS, Amer SAM, Jin F. Genetic characterization of the highlander Tibetan population from Qinghai-Tibet Plateau revealed by X chromosomal STRs. PLoS One 2022; 17:e0271769. [PMID: 35926061 PMCID: PMC9352086 DOI: 10.1371/journal.pone.0271769] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 05/17/2022] [Indexed: 01/20/2023] Open
Abstract
Tibetans are considered an East Asian ethnic group and primarily live in the high Tibetan plateau, the western Sichuan and Yunnan mountains of central and southern China, and areas throughout the Himalayas and around the Tibetan plateau. These people exhibit rare molecular machinery that allows them to adapt to hypoxic environments in the Qinghai-Tibet Plateau and make them a potential candidate for providing insights related to medical genetic, molecular medicine and human population studies. In the current study, we have genotyped 549 individuals with Investigator Argus X-12 Kit. For 12 X-STRs, a total of 174 unique alleles were found, among them DXS10134 and DXS10135 were the most polymorphic loci. All of the loci were in Hardy-Weinberg Equilibrium (HWE). The numbers of observed haplotypes in Highlander Tibetans males were 161,112, 96 and 108, respectively, whereas haplotype diversities (HD) were 0.9959, 0.9880, 0.9809 and 0.9873, respectively. The combined discrimination power for males (PDm) was 0.999 999 99701 and for females (PDf) was 0.999 999 999 999 9958. This study represents an extensive report on X chromosomal STR markers variation in the Highlander Tibetans population for forensic applications and population genetic studies.
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Affiliation(s)
- Xiao-na Li
- School of Fundamental Sciences, China Medical University, Shenyang, Liaoning, P.R. China
| | - Atif Adnan
- Department of Forensic Sciences, College of Criminal Justice, Naif Universsity of Security Sciences, Riyadh, Kingdom of Saudi Arabia
- * E-mail: (FJ); (AA)
| | - Sibte Hadi
- Department of Forensic Sciences, College of Criminal Justice, Naif Universsity of Security Sciences, Riyadh, Kingdom of Saudi Arabia
| | - Wedad Saeed Al-Qahtani
- Department of Forensic Sciences, College of Criminal Justice, Naif Universsity of Security Sciences, Riyadh, Kingdom of Saudi Arabia
| | - Maha Abdullah Alwaili
- Department of Biology, Collage of Sciences, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Dalal S. Alshaya
- Department of Biology, Collage of Sciences, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Areej S. Jalal
- Department of Biology, Collage of Sciences, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Sayed A. M. Amer
- Department of Forensic Sciences, College of Criminal Justice, Naif Universsity of Security Sciences, Riyadh, Kingdom of Saudi Arabia
| | - Feng Jin
- Department of Breast Surgery, The First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
- * E-mail: (FJ); (AA)
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6
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Baeta M, Prieto-Fernández E, Núñez C, Kleinbielen T, Villaescusa P, Palencia-Madrid L, Alvarez-Gila O, Martínez-Jarreta B, de Pancorbo MM. Study of 17 X-STRs in Native American and Mestizo populations of Central America for forensic and population purposes. Int J Legal Med 2021; 135:1773-1776. [PMID: 33742257 DOI: 10.1007/s00414-021-02536-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 02/10/2021] [Indexed: 11/30/2022]
Abstract
In the present work, an extensive analysis of the X-chromosomal pool of Native American and Mestizo groups of Central America (Guatemala, El Salvador, Nicaragua, and Panama) has been carried out. Allele and haplotype frequency databases, as well as other forensic parameters for these populations, are presented. The admixture analysis supports the tri-hybrid composition in terms of ancestry in the Mestizo populations, with a predominant Native American contribution (54-69%), followed by European (19-28%) and African contributions (12-19%). Pairwise FST genetic distances highlight the genetic proximity between the northernmost Central American populations, especially among admixed populations. The unique and complex nature of this area, where populations from different origins intercrossed, as well as the informativity of X-STR data, highpoint the great interest of this genetic study. Furthermore, the X-chromosome databases for Central American populations here provided will be not only useful for forensic and population purposes not only in the target countries but also in the host countries.
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Affiliation(s)
- Miriam Baeta
- BIOMICs Research Group, Lascaray Research Center, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain
| | - Endika Prieto-Fernández
- BIOMICs Research Group, Lascaray Research Center, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain
| | - Carolina Núñez
- BIOMICs Research Group, Lascaray Research Center, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain
| | - Tamara Kleinbielen
- BIOMICs Research Group, Lascaray Research Center, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain
| | - Patricia Villaescusa
- BIOMICs Research Group, Lascaray Research Center, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain
| | - Leire Palencia-Madrid
- BIOMICs Research Group, Lascaray Research Center, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain
| | - Oscar Alvarez-Gila
- Department of Medieval, Early Modern and American History, Faculty of Letters, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain
| | | | - Marian M de Pancorbo
- BIOMICs Research Group, Lascaray Research Center, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain.
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7
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Gomes I, Pinto N, Antão-Sousa S, Gomes V, Gusmão L, Amorim A. Twenty Years Later: A Comprehensive Review of the X Chromosome Use in Forensic Genetics. Front Genet 2020; 11:926. [PMID: 33093840 PMCID: PMC7527635 DOI: 10.3389/fgene.2020.00926] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 07/24/2020] [Indexed: 12/12/2022] Open
Abstract
The unique structure of the X chromosome shaped by evolution has led to the present gender-specific genetic differences, which are not shared by its counterpart, the Y chromosome, and neither by the autosomes. In males, recombination between the X and Y chromosomes is limited to the pseudoautosomal regions, PAR1 and PAR2; therefore, in males, the X chromosome is (almost) entirely transmitted to female offspring. On the other hand, the X chromosome is present in females with two copies that recombine along the whole chromosome during female meiosis and that is transmitted to both female and male descendants. These transmission characteristics, besides the obvious clinical impact (sex chromosome aneuploidies are extremely frequent), make the X chromosome an irreplaceable genetic tool for population genetic-based studies as well as for kinship and forensic investigations. In the early 2000s, the number of publications using X-chromosomal polymorphisms in forensic and population genetic applications increased steadily. However, nearly 20 years later, we observe a conspicuous decrease in the rate of these publications. In light of this observation, the main aim of this article is to provide a comprehensive review of the advances and applications of X-chromosomal markers in population and forensic genetics over the last two decades. The foremost relevant topics are addressed as: (i) developments concerning the number and types of markers available, with special emphasis on short tandem repeat (STR) polymorphisms (STR nomenclatures and practical concerns); (ii) overview of worldwide population (frequency) data; (iii) the use of X-chromosomal markers in (complex) kinship testing and the forensic statistical evaluation of evidence; (iv) segregation and mutation studies; and (v) current weaknesses and future prospects.
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Affiliation(s)
- Iva Gomes
- Institute for Research and Innovation in Health Sciences (i3S), University of Porto, Porto, Portugal.,Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Porto, Portugal
| | - Nádia Pinto
- Institute for Research and Innovation in Health Sciences (i3S), University of Porto, Porto, Portugal.,Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Porto, Portugal.,Center of Mathematics, Faculty of Sciences, University of Porto, Porto, Portugal
| | - Sofia Antão-Sousa
- Institute for Research and Innovation in Health Sciences (i3S), University of Porto, Porto, Portugal.,Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Porto, Portugal.,Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal.,DNA Diagnostic Laboratory (LDD), State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
| | - Verónica Gomes
- Institute for Research and Innovation in Health Sciences (i3S), University of Porto, Porto, Portugal.,Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Porto, Portugal
| | - Leonor Gusmão
- DNA Diagnostic Laboratory (LDD), State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
| | - António Amorim
- Institute for Research and Innovation in Health Sciences (i3S), University of Porto, Porto, Portugal.,Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Porto, Portugal.,Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal
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8
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Hering S, Klimova A, Edelmann J. German population data for 18 X-STRs: a hexaplex PCR adding two clusters of X-STRs to the Argus X-12 set and expanding the German haplotype databases. Int J Legal Med 2020; 134:2061-2062. [PMID: 32367330 DOI: 10.1007/s00414-020-02306-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 04/20/2020] [Indexed: 11/28/2022]
Abstract
In kinship analysis, large data sets with estimated haplotype frequencies for marker clusters are very important for the likelihood calculation. Practical use of the X-STRs demonstrated that in some complex kinship cases, the marker set of the Investigator Argus X-12 kit can be insufficient. This study aimed to extend the German data base of the Argus X-12 kit (1037 haplotypes) and for a cluster in Xq21 (806 haplotypes) with additional 700 male haplotypes and to include a further cluster in Xp22.3 to complete the X-STR marker set for complex kinship cases.
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Affiliation(s)
- Sandra Hering
- Institute of Legal Medicine, University of Dresden, Dresden, Germany
| | - Anna Klimova
- Institute for Medical Informatics and Biometry, University of Dresden, Dresden, Germany
| | - Jeanett Edelmann
- Institute of Legal Medicine, University of Leipzig, Leipzig, Germany.
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9
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Paternal and maternal mutations in X-STRs: A GHEP-ISFG collaborative study. Forensic Sci Int Genet 2020; 46:102258. [PMID: 32066109 DOI: 10.1016/j.fsigen.2020.102258] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 10/06/2019] [Accepted: 01/29/2020] [Indexed: 11/22/2022]
Abstract
The GHEP-ISFG organized a collaborative study to estimate mutation rates for the markers included in the Investigator Argus X-12 QS kit Qiagen. A total of 16 laboratories gathered data from 1,612 father/mother/daughter trios, which were used to estimate both maternal and paternal mutation rates, when pooled together with other already published data. Data on fathers and mothers' age at the time of birth of the daughter were also available for ∼93 % of the cases. Population analyses were computed considering the genetic information of a subset of 1,327 unrelated daughters, corresponding to 2,654 haplotypes from residents in several regions of five countries: Argentina, Brazil, Ecuador, Portugal and Spain. Genetic differentiation analyses between the population samples from the same country did not reveal signs of significant stratification, although results from Hardy-Weinberg and linkage disequilibrium tests indicated the need of larger studies for Ecuador and Brazilian populations. The high genetic diversity of the markers resulted in a large number of haplotype combinations, showing the need of huge databases for reliable estimates of their frequencies. It should also be noted the high number of new alleles found, many of them not included in the allelic ladders provided with the kit, as very diverse populations were analyzed. The overall estimates for locus specific average mutation rates varied between 7.5E-04 (for DXS7423) and 1.1E-02 (for DXS10135), the latter being a troublesome figure for kinship analyses. Most of the found mutations (∼92 %) are compatible with the gain or loss of a single repeat. Paternal mutation rates showed to be 5.2 times higher than maternal ones. We also found that older fathers were more prone to transmit mutated alleles, having this trend not been observed in the case of the mothers.
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Zambrano AK, Vaca-Pólit M, Boada L, Vela M, Rodríguez-Pólit C, Fiallos G, Gruezo C, Paz-y-Miño C, Gaviria A. X-STR decaplex study in the population of Imbabura-Ecuador. FORENSIC SCIENCE INTERNATIONAL GENETICS SUPPLEMENT SERIES 2019. [DOI: 10.1016/j.fsigss.2019.09.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Genetic insight into Nigerian population groups using an X-chromosome decaplex system. FORENSIC SCIENCE INTERNATIONAL GENETICS SUPPLEMENT SERIES 2019. [DOI: 10.1016/j.fsigss.2019.10.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Fukuta M, Gaballah M, Takada K, Miyazaki H, Kato H, Aoki Y, Hamed SS, ElMorsi DAA, ElDakroory SA. Genetic polymorphism of 27 X-chromosomal short tandem repeats in an Egyptian population. Leg Med (Tokyo) 2019; 37:64-66. [PMID: 30711876 DOI: 10.1016/j.legalmed.2019.01.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 11/27/2018] [Accepted: 01/23/2019] [Indexed: 11/17/2022]
Abstract
We presented allele frequencies of 27 X-chromosomal short tandem repeats (DXS6807, DXS9902, DXS6795, DXS6810, DXS10076, DXS10077, DXS10078, DXS10162, DXS10163, DXS10164, DXS7132, DXS981, DXS6800, DXS6803, DXS6809, DXS6789, DXS6799, DXS7424, DXS101, DXS7133, GATA172D05, DXS10103, HPRTB, GATA31E08, DXS8377, DXS10147, and DXS7423) obtained from 352 unrelated individuals in Egypt. No deviation from Hardy-Weinberg equilibrium was detected. Two pairs of adjacent loci showed significant linkage disequilibrium. In the principal component analysis plot, the Egyptian data were located between Europe and sub-Saharan Africa, away from Asia.
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Affiliation(s)
- Mamiko Fukuta
- Department of Forensic Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
| | - Mohammed Gaballah
- Egyptian Forensic Medicine Authority, Ministry of Justice, Cairo, Egypt
| | - Kazushi Takada
- Department of Forensic Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiroki Miyazaki
- Department of Forensic Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hideaki Kato
- Department of Forensic Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yasuhiro Aoki
- Department of Forensic Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Sameera Sh Hamed
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Doaa A A ElMorsi
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Sahar A ElDakroory
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
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13
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Xing J, Adnan A, Rakha A, Kasim K, Noor A, Xuan J, Zhang X, Yao J, McNevin D, Wang B. Genetic analysis of 12 X-STRs for forensic purposes in Liaoning Manchu population from China. Gene 2018; 683:153-158. [PMID: 30326331 DOI: 10.1016/j.gene.2018.10.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 10/04/2018] [Accepted: 10/09/2018] [Indexed: 11/29/2022]
Abstract
X-chromosomal short tandem repeats (X-STRs) have been widely used in forensic practice involving complicated cases of kinship and also play an increasingly important role in population genetics. X-STRs have been studied in regional populations of China but there is a lack of data for the Manchu population. In this study, we have investigated the forensic genetic properties of 12 X-STRs in the Investigator Argus X-12 Kit (QIAGEN, Hilden, Germany) in 772 Manchu (male = 514, female = 258) individuals from the Xiuyan and Huanren Manchu autonomous counties of Liaoning province. We observed a total of 166 alleles at 12 X-STR loci with allele frequencies ranging from 0.001295to 0.615285. The most polymorphic locus was DXS10135 with 24 alleles while DXS7423 was the least polymorphic locus with 5 alleles. We found significant linkage disequilibrium (LD) between the following pairs of markers for males: DXS10103/DXS10101, DXS10135/DXS10146, DXS10101/DXS10148, DXS10135/DXS10148, DXS7423/DXS10148 and DXS10079/DXS10148. For females, LD was only observed for DXS10103/DXS10101. The combined power of discrimination was 0.9999999979699 for males and 0.999999999999998 for females. The numbers of observed haplotypes in Manchu males were 310, 172, 182 and 172 in four linkage groups; LG1, LG2, LG3 and LG4, respectively, however, these linkage groups did not form stable haplotypes as indicated by linkage equilibrium (LE) of STRs within the groups and significant LD between the groups. This study represents an extensive report on X-STR marker variation in the Manchu population for forensic applications and population genetic studies.
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Affiliation(s)
- Jiaxin Xing
- Department of Forensic Genetics, School of Forensic Medicine, China Medical University Shenyang, Liaoning 110122, China
| | - Atif Adnan
- Department of Forensic Genetics, School of Forensic Medicine, China Medical University Shenyang, Liaoning 110122, China.
| | - Allah Rakha
- Department of Forensic Science, University of Health Sciences, Lahore 54000, Pakistan
| | - Kadirya Kasim
- Department of Forensic Genetics, School of Forensic Medicine, China Medical University Shenyang, Liaoning 110122, China
| | - Anam Noor
- Department of Forensic Science, University of Health Sciences, Lahore 54000, Pakistan
| | - Jinfeng Xuan
- Department of Forensic Genetics, School of Forensic Medicine, China Medical University Shenyang, Liaoning 110122, China
| | - Xicen Zhang
- Department of Forensic Genetics, School of Forensic Medicine, China Medical University Shenyang, Liaoning 110122, China
| | - Jun Yao
- Department of Forensic Genetics, School of Forensic Medicine, China Medical University Shenyang, Liaoning 110122, China
| | - Dennis McNevin
- Centre for Forensic Science, School of Mathematical and Physical Sciences, University of Technology Sydney, Australia
| | - Baojie Wang
- Department of Forensic Genetics, School of Forensic Medicine, China Medical University Shenyang, Liaoning 110122, China.
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14
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Palomo-Díez S, Esparza Arroyo Á, Tirado-Vizcaíno M, Velasco Vázquez J, López-Parra AM, Gomes C, Baeza-Richer C, Arroyo-Pardo E. Kinship analysis and allelic dropout: a forensic approach on an archaeological case. Ann Hum Biol 2018; 45:365-368. [PMID: 30027753 DOI: 10.1080/03014460.2018.1484159] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
BACKGROUND This study relies on the discovery of two pit burials (LTA and LTB) of the Bronze Age Cogotas I archaeological culture (circa 3600-2950 BP) in Spain. LTA was a single burial and LTB contained three skeletal remains of two adults and a newborn or foetus at term. AIM The central question posed by this find was whether the LTB tomb constituted a traditional nuclear family (father, mother and son or daughter). METHODS Ancient and forensic DNA protocols were employed to obtain reliable results. Autosomal, X-STR markers and mitochondrial DNA were amplified. Subsequently, different kinship probabilities were estimated by means of LR values calculated using the Familias 3 software. Furthermore, an allelic dropout sensitivity test was developed in order to evaluate the influence of allelic dropout phenomena on the results. RESULTS It was possible to determine the molecular sex of all individuals and to establish a maternal relationship between the perinatal individual and one of the adults. CONCLUSION The remains in the LTB tomb were not a traditional nuclear family (father, mother and son/daughter) and it was probably a tomb where two women, one of them pregnant, were buried.
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Affiliation(s)
- Sara Palomo-Díez
- a Laboratory of Forensic and Population Genetics, Toxicology and Health Legislation Department , Medicine School, Complutense University of Madrid , Madrid , Spain.,b Department of Prehistory, Ancient History and Archaeology , University of Salamanca , Salamanca , Spain
| | - Ángel Esparza Arroyo
- b Department of Prehistory, Ancient History and Archaeology , University of Salamanca , Salamanca , Spain
| | - Mirian Tirado-Vizcaíno
- a Laboratory of Forensic and Population Genetics, Toxicology and Health Legislation Department , Medicine School, Complutense University of Madrid , Madrid , Spain
| | - Javier Velasco Vázquez
- c Department of Historical Sciences , University of Las Palmas de Gran Canaria , Las Palmas , Spain
| | - Ana María López-Parra
- a Laboratory of Forensic and Population Genetics, Toxicology and Health Legislation Department , Medicine School, Complutense University of Madrid , Madrid , Spain
| | - Cláudia Gomes
- a Laboratory of Forensic and Population Genetics, Toxicology and Health Legislation Department , Medicine School, Complutense University of Madrid , Madrid , Spain
| | - Carlos Baeza-Richer
- a Laboratory of Forensic and Population Genetics, Toxicology and Health Legislation Department , Medicine School, Complutense University of Madrid , Madrid , Spain
| | - Eduardo Arroyo-Pardo
- a Laboratory of Forensic and Population Genetics, Toxicology and Health Legislation Department , Medicine School, Complutense University of Madrid , Madrid , Spain
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15
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StatsX v2.0: the interactive graphical software for population statistics on X-STR. Int J Legal Med 2018; 133:39-44. [DOI: 10.1007/s00414-018-1824-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 03/07/2018] [Indexed: 10/17/2022]
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16
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Mariscal Ramos C, Martínez-Cortes G, Ramos-González B, Rangel-Villalobos H. Forensic parameters of the X-STR Decaplex system in Mexican populations. Leg Med (Tokyo) 2018; 31:38-41. [PMID: 29304396 DOI: 10.1016/j.legalmed.2017.12.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 11/10/2017] [Accepted: 12/28/2017] [Indexed: 11/28/2022]
Abstract
We studied the X-STR decaplex system in 529 DNA female samples of Mexican populations from five geographic regions. Allele frequencies and forensic parameters were estimated in each region and in the pooled Mexican population. Genotype distribution by locus was in agreement with Hardy-Weinberg expectations in each Mexican population sample. Similarly, linkage equilibrium was demonstrated between pair of loci. Pairwise comparisons and genetic distances between Mexican, Iberoamerican and one African populations were estimated and graphically represented. Interestingly, a non-significant interpopulation differentiation was detected (Fst = 0.0021; p = .74389), which allows using a global Mexican database for forensic interpretation of X-STR genotypes.
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Affiliation(s)
- C Mariscal Ramos
- Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, (UNAM), Ciudad Universitaria, México DF, Mexico
| | - G Martínez-Cortes
- Instituto de Investigación en Genética Molecular, Centro Universitario de la Ciénega, Universidad de Guadalajara (CUCiénega-UdeG), Ocotlán, Jalisco, Mexico
| | - B Ramos-González
- Laboratorio de Genética Forense, Instituto de Criminalística y Servicios Periciales, Procuraduría General de Justicia, Nuevo León, Mexico
| | - H Rangel-Villalobos
- Instituto de Investigación en Genética Molecular, Centro Universitario de la Ciénega, Universidad de Guadalajara (CUCiénega-UdeG), Ocotlán, Jalisco, Mexico.
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17
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Builes J, Mendoza L, Gaviria A, Zambrano A, Suarez N, Gutierrez J, Ibarra A, Granda J, Castillo A, Gil A, Pico A, Aguirre D. Genetic characterization of four Colombian populations using Investigator® Argus X-12 kit. FORENSIC SCIENCE INTERNATIONAL GENETICS SUPPLEMENT SERIES 2017. [DOI: 10.1016/j.fsigss.2017.09.090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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18
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Rincón A, Aguirre D, Mendoza L, Camacho J, Builes J. Genetic data of 10 X-STRs in a population sample of the Tunja city, Department of Boyacá-Colombia. FORENSIC SCIENCE INTERNATIONAL GENETICS SUPPLEMENT SERIES 2017. [DOI: 10.1016/j.fsigss.2017.09.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Curiosities of X chromosomal markers and haplotypes. Int J Legal Med 2017; 132:361-371. [DOI: 10.1007/s00414-017-1612-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 05/16/2017] [Indexed: 10/19/2022]
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20
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DNA Commission of the International Society for Forensic Genetics (ISFG): Guidelines on the use of X-STRs in kinship analysis. Forensic Sci Int Genet 2017; 29:269-275. [PMID: 28544956 DOI: 10.1016/j.fsigen.2017.05.005] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 05/12/2017] [Indexed: 01/21/2023]
Abstract
Forensic genetic laboratories perform an increasing amount of genetic analyses of the X chromosome, in particular to solve complex cases of kinship analysis. For some biological relationships X-chromosomal markers can be more informative than autosomal markers, and there are a large number of markers, methods and databases that have been described for forensic use. Due to their particular mode of inheritance, and their physical location on a single chromosome, some specific considerations are required when estimating the weight of evidence for X-chromosomal marker DNA data. The DNA Commission of the International Society for Forensic Genetics (ISFG) hereby presents guidelines and recommendations for the use of X-chromosomal markers in kinship analysis with a special focus on the biostatistical evaluation. Linkage and linkage disequilibrium (association of alleles) are of special importance for such evaluations and these concepts and the implications for likelihood calculations are described in more detail. Furthermore it is important to use appropriate computer software that accounts for linkage and linkage disequilibrium among loci, as well as for mutations. Even though some software exist, there is still a need for further improvement of dedicated software.
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21
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Genetic characterization of an X-STR decaplex system in the State of Mato Grosso, Brazil: distribution, forensic efficiency and population structure. Int J Legal Med 2017; 131:1523-1530. [PMID: 28405752 DOI: 10.1007/s00414-017-1578-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 03/17/2017] [Indexed: 10/19/2022]
Abstract
Studies with X-STR loci show population genetic substructure, which makes necessary the characterization of such markers in the different geographical and/or ethnic populations. Therefore, this study assessed the distribution and forensic efficiency of an X-STR decaplex system in the population of the State of Mato Grosso, as well as analysed the population structure of this State based on the aforementioned system. All X-STR markers were in Hardy-Weinberg equilibrium and linkage equilibrium, and the DXS6809 was the most informative marker. The power of discrimination value in females and males was 0.99999999995 and 0.9999994, respectively. Analysis of molecular variance indicated 1.10% (p < 0.00001) of heterogeneity among Europeans, Africans, Brazilians and other Latin Americans, and in relation to such groups, the population of the State of Mato Grosso showed lower genetic variation when compared with the Brazilian group (-0.10%, p = 0.67327). The genetic distance analysis showed lower values of F ST (0.0004 ≤ F ST ≤ 0.00331), with non-significant p value (p > 0.00024), between the populations of Mato Grosso and Mato Grosso do Sul, Paraná and the Southeast region of Brazil (except for one sample of Rio de Janeiro). F ST values with significant p values (p ≤ 0.00024) were obtained between the population of Mato Grosso and Iberian, African and some Latin American populations. The X-STR decaplex system proved to be extremely useful in the population of the State of Mato Grosso, and the data obtained does not show the need for a specific forensic database for this State in relation to the Brazilian populations compared in this study, except for population of Rio de Janeiro.
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22
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Deng C, Song F, Li J, Ye Y, Zhang L, Liang W, Luo H, Li Y. Forensic parameters of 19 X-STR polymorphisms in two Chinese populations. Int J Legal Med 2017; 131:975-977. [DOI: 10.1007/s00414-017-1538-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 01/10/2017] [Indexed: 02/02/2023]
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23
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Guo F. Population genetic data for 12 X-STR loci in the Northern Han Chinese and StatsX package as tools for population statistics on X-STR. Forensic Sci Int Genet 2017; 26:e1-e8. [DOI: 10.1016/j.fsigen.2016.10.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 10/03/2016] [Accepted: 10/23/2016] [Indexed: 12/29/2022]
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24
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Prieto-Fernández E, Díaz-de Usera A, Baeta M, Núñez C, Chbel F, Nadifi S, Rouault K, Férec C, Hardiman O, Pinheiro F, de Pancorbo MM. A genetic overview of Atlantic coastal populations from Europe and North-West Africa based on a 17 X-STR panel. Forensic Sci Int Genet 2016; 27:167-171. [PMID: 27931869 DOI: 10.1016/j.fsigen.2016.11.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 11/03/2016] [Accepted: 11/30/2016] [Indexed: 11/26/2022]
Abstract
The forensic use of X-STRs requires the creation of allele and haplotype frequency databases in the populations where they are going to be used. Recently, an updated Spanish allele and haplotype frequency database for the new 17 X-STR panel has been created, being the only database available up to now for this new multiplex. In order to broaden the forensic applicability of the 17 X-STR panel, 513 individuals from four different populations located on the Atlantic Coast of Europe and North-West Africa have been studied, i.e. Brittany (France), Ireland, northern Portugal, and Casablanca (Morocco). Allele and haplotype frequency databases, as well as parameters of forensic interest for these populations are presented. The obtained results showed that the 17 X-STR panel constitutes a highly discriminative tool for forensic identification and kinship testing in the studied populations. Furthermore, we aimed to study if these populations located on the Atlantic coast actually share alike allele and haplotype frequency distributions since they have experienced genetic exchanges throughout history. This would allow creating larger forensic databases that include several genetically similar populations for its use in forensic casework. For this purpose, pairwise FST genetic distances between the analyzed populations and others from the Atlantic Coast previously studied with the 17 X-STR panel or the ten coincident markers included in the decaplex of the GHEP-ISFG were estimated. Our results suggest that certain nearby populations located on the European Atlantic coast could have underwent episodes of genetic interchange as they have not shown statistically significant differentiation between them. However, the population of Casablanca showed significant differentiation with the majority of the European populations. Likewise, the autochthonous Basque Country and Brittany populations have shown distinctive allele frequency distributions between them. Therefore, these findings seem to support that the use of independent allele and haplotype frequency databases for each population instead of a global database would be more appropriate for forensic purposes.
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Affiliation(s)
- Endika Prieto-Fernández
- BIOMICs Research Group, Lascaray Research Center, University of the Basque Country UPV/EHU. Avda. Miguel de Unamuno, 3, 01006 Vitoria-Gasteiz, Spain
| | - Ana Díaz-de Usera
- BIOMICs Research Group, Lascaray Research Center, University of the Basque Country UPV/EHU. Avda. Miguel de Unamuno, 3, 01006 Vitoria-Gasteiz, Spain
| | - Miriam Baeta
- BIOMICs Research Group, Lascaray Research Center, University of the Basque Country UPV/EHU. Avda. Miguel de Unamuno, 3, 01006 Vitoria-Gasteiz, Spain
| | - Carolina Núñez
- BIOMICs Research Group, Lascaray Research Center, University of the Basque Country UPV/EHU. Avda. Miguel de Unamuno, 3, 01006 Vitoria-Gasteiz, Spain
| | - Faiza Chbel
- Laboratoire National De Référence, Université Mohammed IV des Sciences de la Santé, Boulevard Mohamed Taieb Naciri, Hay El Hassani, BP 82403, Casa Oumrabii, Casablanca, Morocco
| | - Sellama Nadifi
- Laboratoire de Génétique Humaine, Faculté de Médecine et de Pharmacie, Université Hassan II, Casablanca, Morocco
| | - Karen Rouault
- Inserm, UMR 1078, France, Université de Bretagne Occidentale, Brest, France, Etablissement Français du Sang, Bretagne, CHRU Brest, Hôpital Morvan, Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Brest, France
| | - Claude Férec
- Inserm, UMR 1078, France, Université de Bretagne Occidentale, Brest, France, Etablissement Français du Sang, Bretagne, CHRU Brest, Hôpital Morvan, Laboratoire de Génétique Moléculaire et d'Histocompatibilité, Brest, France
| | - Orla Hardiman
- Academic Unit of Neurology, Trinity Biomedical Sciences Institute, Dublin, 2, Ireland; Department of Neurology, Beaumont Hospital, Dublin, 9, Ireland
| | - Fátima Pinheiro
- Delegação do Norte do Instituto Nacional de Medicina Legal, Jardim Carrilho Videira, 4050-167 Porto, Portugal
| | - Marian M de Pancorbo
- BIOMICs Research Group, Lascaray Research Center, University of the Basque Country UPV/EHU. Avda. Miguel de Unamuno, 3, 01006 Vitoria-Gasteiz, Spain.
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25
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Prieto-Fernández E, Núñez C, Baeta M, Jiménez-Moreno S, Martínez-Jarreta B, de Pancorbo MM. Forensic Spanish allele and haplotype database for a 17 X-STR panel. Forensic Sci Int Genet 2016; 24:120-123. [DOI: 10.1016/j.fsigen.2016.06.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 06/20/2016] [Accepted: 06/22/2016] [Indexed: 11/24/2022]
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26
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Diegoli TM, Rohde H, Borowski S, Krawczak M, Coble MD, Nothnagel M. Genetic mapping of 15 human X chromosomal forensic short tandem repeat (STR) loci by means of multi-core parallelization. Forensic Sci Int Genet 2016; 25:39-44. [PMID: 27497644 DOI: 10.1016/j.fsigen.2016.07.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 05/27/2016] [Accepted: 07/07/2016] [Indexed: 10/21/2022]
Abstract
Typing of X chromosomal short tandem repeat (X STR) markers has become a standard element of human forensic genetic analysis. Joint consideration of many X STR markers at a time increases their discriminatory power but, owing to physical linkage, requires inter-marker recombination rates to be accurately known. We estimated the recombination rates between 15 well established X STR markers using genotype data from 158 families (1041 individuals) and following a previously proposed likelihood-based approach that allows for single-step mutations. To meet the computational requirements of this family-based type of analysis, we modified a previous implementation so as to allow multi-core parallelization on a high-performance computing system. While we obtained recombination rate estimates larger than zero for all but one pair of adjacent markers within the four previously proposed linkage groups, none of the three X STR pairs defining the junctions of these groups yielded a recombination rate estimate of 0.50. Corroborating previous studies, our results therefore argue against a simple model of independent X chromosomal linkage groups. Moreover, the refined recombination fraction estimates obtained in our study will facilitate the appropriate joint consideration of all 15 investigated markers in forensic analysis.
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Affiliation(s)
- Toni Marie Diegoli
- Office of the Chief Scientist, Defense Forensic Science Center, Ft. Gillem, GA, USA; Analytical Services, Inc., Arlington, VA, USA
| | - Heinrich Rohde
- Cologne Center for Genomics, University of Cologne, Cologne, Germany
| | - Stefan Borowski
- Regional Computing Centre, University of Cologne, Cologne, Germany
| | - Michael Krawczak
- Institute of Medical Informatics and Statistics, Christian-Albrechts University, Kiel, Germany
| | - Michael D Coble
- Applied Genetics Group, National Institute of Standards and Technology, Gaithersburg, MD, USA
| | - Michael Nothnagel
- Cologne Center for Genomics, University of Cologne, Cologne, Germany.
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27
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Toscanini U, Gusmão L, Álava Narváez MC, Álvarez JC, Baldassarri L, Barbaro A, Berardi G, Betancor Hernández E, Camargo M, Carreras-Carbonell J, Castro J, Costa SC, Coufalova P, Domínguez V, Fagundes de Carvalho E, Ferreira STG, Furfuro S, García O, Goios A, González R, de la Vega AG, Gorostiza A, Hernández A, Jiménez Moreno S, Lareu MV, León Almagro A, Marino M, Martínez G, Miozzo MC, Modesti NM, Onofri V, Pagano S, Pardo Arias B, Pedrosa S, Penacino GA, Pontes ML, Porto MJ, Puente-Prieto J, Pérez RR, Ribeiro T, Rodríguez Cardozo B, Rodríguez Lesmes YM, Sala A, Santiago B, Saragoni VG, Serrano A, Streitenberger ER, Torres Morales MA, Vannelli Rey SA, Velázquez Miranda M, Whittle MR, Fernández K, Salas A. Analysis of uni and bi-parental markers in mixture samples: Lessons from the 22nd GHEP-ISFG Intercomparison Exercise. Forensic Sci Int Genet 2016; 25:63-72. [PMID: 27500650 DOI: 10.1016/j.fsigen.2016.07.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 07/14/2016] [Accepted: 07/17/2016] [Indexed: 10/21/2022]
Abstract
Since 1992, the Spanish and Portuguese-Speaking Working Group of the ISFG (GHEP-ISFG) has been organizing annual Intercomparison Exercises (IEs) coordinated by the Quality Service at the National Institute of Toxicology and Forensic Sciences (INTCF) from Madrid, aiming to provide proficiency tests for forensic DNA laboratories. Each annual exercise comprises a Basic (recently accredited under ISO/IEC 17043: 2010) and an Advanced Level, both including a kinship and a forensic module. Here, we show the results for both autosomal and sex-chromosomal STRs, and for mitochondrial DNA (mtDNA) in two samples included in the forensic modules, namely a mixture 2:1 (v/v) saliva/blood (M4) and a mixture 4:1 (v/v) saliva/semen (M8) out of the five items provided in the 2014 GHEP-ISFG IE. Discrepancies, other than typos or nomenclature errors (over the total allele calls), represented 6.5% (M4) and 4.7% (M8) for autosomal STRs, 15.4% (M4) and 7.8% (M8) for X-STRs, and 1.2% (M4) and 0.0% (M8) for Y-STRs. Drop-out and drop-in alleles were the main cause of errors, with laboratories using different criteria regarding inclusion of minor peaks and stutter bands. Commonly used commercial kits yielded different results for a micro-variant detected at locus D12S391. In addition, the analysis of electropherograms revealed that the proportions of the contributors detected in the mixtures varied among the participants. In regards to mtDNA analysis, besides important discrepancies in reporting heteroplasmies, there was no agreement for the results of sample M4. Thus, while some laboratories documented a single control region haplotype, a few reported unexpected profiles (suggesting contamination problems). For M8, most laboratories detected only the haplotype corresponding to the saliva. Although the GHEP-ISFG has already a large experience in IEs, the present multi-centric study revealed challenges that still exist related to DNA mixtures interpretation. Overall, the results emphasize the need for further research and training actions in order to improve the analysis of mixtures among the forensic practitioners.
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Affiliation(s)
- U Toscanini
- PRICAI-Fundación Favaloro, Buenos Aires, Argentina.
| | - L Gusmão
- DNA Diagnostic Laboratory (LDD), State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil; IPATIMUP (Institute of Pathology and Molecular Immunology from de University of Porto), Porto, Portugal; I3s (Instituto de Investigação e Inovação em Saúde, Universidade do Porto), Porto, Portugal
| | - M C Álava Narváez
- Laboratorio de Genética Regional Bogotá del Instituto Nacional de Medicina Legal y Ciencias Forenses., Bogotá, Colombia
| | - J C Álvarez
- Lab. de Identificación Genética. Depto. de Medicina Legal, Toxicología y Antropología Física. Facultad de Medicina. Universidad de Granada, Granada, Spain
| | - L Baldassarri
- Institute of Public Sanity Section of Legal Medicine Catholic University of Sacred Heart, Rome, Rome, Italy
| | - A Barbaro
- Studio Indagini Mediche E Forensi (SIMEF), Reggio Calabria, Italy
| | - G Berardi
- PRICAI-Fundación Favaloro, Buenos Aires, Argentina
| | - E Betancor Hernández
- Laboratorio Genética Forense, Instituto de Medicina Legal de Las Palmas, ULPG., Las Palmas, Spain
| | - M Camargo
- Laboratorio de Genética Regional Suroccidente del Instituto Nacional de Medicina Legal y Ciencias Forenses., Cali, Colombia
| | - J Carreras-Carbonell
- Policia de la Generalitat - Mossos d'Esquadra, Divisió de Policia Científica, Unitat Central del Laboratori Biològic, Sabadell, Barcelona, Spain
| | - J Castro
- Genética Forense, Unidad Criminalistica Contra la Vulneración de Derechos Fundamentales, Ministerio Público, Venezuela
| | - S C Costa
- Laboratório de Polícia Científica da Polícia Judiciária, Lisbon, Portugal
| | - P Coufalova
- Institute of Criminalistics Prague, Prague, Czech Republic
| | - V Domínguez
- Lab. Biológico de la Dirección Nacional de Policía Científica, Montevideo, Uruguay
| | - E Fagundes de Carvalho
- DNA Diagnostic Laboratory (LDD), State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
| | - S T G Ferreira
- Instituto de Pesquisa de DNA Forense, IPDNA, Polícia Civil do Distrito Federal, PCDF, Brasília, Brazil, and Secretaria Nacional de Segurança Pública do Ministério da Justiça, SENASP/MJ, Brasília, Brazil
| | - S Furfuro
- Laboratorio de Análisis de ADN- Facultad de Ciencias Médicas- Universidad Nacional de Cuyo, Mendoza, Argentina
| | - O García
- Forensic Science Unit, Forensic Genetics Section, Basque Country Police-Ertzaintza, Erandio, Bizkaia, Spain
| | - A Goios
- IPATIMUP (Institute of Pathology and Molecular Immunology from de University of Porto), Porto, Portugal; I3s (Instituto de Investigação e Inovação em Saúde, Universidade do Porto), Porto, Portugal
| | - R González
- Registro Nacional de ADN, Chile, Santiago de Chile, Chile
| | | | | | - A Hernández
- Instituto Nacional de Toxicología y Ciencias Forenses, Delegación en Canarias, Santa Cruz de Tenerife, Spain
| | - S Jiménez Moreno
- Laboratorio de Biología Forense. Dpto Patología y Cirugía. Universidad Miguel Hernández, Elche, Alicante, Spain
| | - M V Lareu
- Unidade de Xenética, Departamento de Anatomía Patolóxica e Ciencias Forenses, Instituto de Ciencias Forenses, Facultade de Medicina, Universidade de Santiago de Compostela, and GenPop Research Group, Instituto de Investigaciones Sanitarias (IDIS), Hospital Clínico Universitario de Santiago, Galicia, Spain
| | - A León Almagro
- Comisaría General de Policía Científica - Laboratorio de ADN, Madrid, Spain
| | - M Marino
- Laboratorio de Genética Forense, Poder Judicial de Mendoza, Mendoza, Argentina
| | - G Martínez
- Servicio de Genética Forense, Superior Tribunal de Justicia de Entre Ríos, Paraná, Argentina
| | - M C Miozzo
- Laboratorio Regional de Genética Forense del NOA - Departamento Médico - Poder Judicial de Jujuy, Jujuy, Argentina
| | - N M Modesti
- Instituto de Genética Forense. Poder Judicial de Córdoba, Córdoba, Argentina
| | - V Onofri
- Universita' Politecnica Delle Marche, DSBSP, Section of Legal Medicine, Ancona, Italy
| | | | - B Pardo Arias
- Instituto Nacional de Toxicología y Ciencias Forenses, Departamento de Sevilla, Sevilla, Spain
| | | | - G A Penacino
- Unidad de Analisis de ADN, Colegio Oficial de Farmaceuticos y Bioquímicos, Buenos Aires, Argentina
| | - M L Pontes
- Serviço de Genética e Biologia Forenses, Instituto Nacional de Medicina Legal e Ciências Forenses, I.P. - Delegação do Norte, Porto, Portugal
| | - M J Porto
- Serviço de Genética e Biologia Forenses, Instituto Nacional de Medicina Legal e Ciências Forenses, I.P., Coimbra, Portugal
| | - J Puente-Prieto
- LabGenetics. Laboratorio de Genética Clínica S.L., Madrid, Spain
| | | | - T Ribeiro
- Serviço de Genética e Biologia Forenses, Instituto Nacional de Medicina Legal e Ciências Forenses, I.P.-Delegação Sul, Lisbon, Portugal
| | | | - Y M Rodríguez Lesmes
- Laboratorio de Biología y Genética Regional Noroccidente del Instituto Nacional de Medicina Legal y Ciencias Forenses., Medellín, Colombia
| | - A Sala
- Servicio de Huellas Digitales Genéticas-Fac. Farmacia y Bioquímica-Universidad de Buenos Aires, Buenos Aires, Argentina
| | - B Santiago
- Instituto Nacional de Toxicología y Ciencias Forenses, Departamento de Madrid. Servicio de Biología., Madrid, Spain
| | - V G Saragoni
- Unidad de Genética Forense, Servicio Médico Legal, Santiago, Chile
| | - A Serrano
- Instituto Nacional de Toxicología y Ciencias Forenses, Departamento de Barcelona, Barcelona, Spain
| | | | | | - S A Vannelli Rey
- Laboratorio Regional Patagonia Norte de Genética Forense - Poder Judicial de Río Negro, Bariloche, Argentina
| | | | - M R Whittle
- Genomic Engenharia Molecular, Sao Paulo, Brazil
| | - K Fernández
- Instituto Nacional de Toxicología y Ciencias Forenses, Departamento de Madrid. Servicio de Biología., Madrid, Spain
| | - A Salas
- Unidade de Xenética, Departamento de Anatomía Patolóxica e Ciencias Forenses, Instituto de Ciencias Forenses, Facultade de Medicina, Universidade de Santiago de Compostela, and GenPop Research Group, Instituto de Investigaciones Sanitarias (IDIS), Hospital Clínico Universitario de Santiago, Galicia, Spain
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Caputo M, Amador MA, Santos S, Corach D. Potential forensic use of a 33 X-InDel panel in the Argentinean population. Int J Legal Med 2016; 131:107-112. [DOI: 10.1007/s00414-016-1399-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 06/03/2016] [Indexed: 01/16/2023]
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Prieto-Fernández E, Baeta M, Núñez C, Zarrabeitia MT, Herrera RJ, Builes JJ, de Pancorbo MM. Development of a new highly efficient 17 X-STR multiplex for forensic purposes. Electrophoresis 2016; 37:1651-8. [DOI: 10.1002/elps.201500546] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 01/21/2016] [Accepted: 03/24/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Endika Prieto-Fernández
- BIOMICs Research Group, Lascaray Research Center; University of the Basque Country UPV/EHU; Vitoria-Gasteiz Spain
| | - Miriam Baeta
- BIOMICs Research Group, Lascaray Research Center; University of the Basque Country UPV/EHU; Vitoria-Gasteiz Spain
| | - Carolina Núñez
- BIOMICs Research Group, Lascaray Research Center; University of the Basque Country UPV/EHU; Vitoria-Gasteiz Spain
| | - María T. Zarrabeitia
- Unit of Legal Medicine; University of Cantabria; Cantabria Spain
- Instituto de Investigación Marqués de Valdecilla (IDIVAL); Cantabria Spain
| | - Rene J. Herrera
- Department of Molecular Biology; Colorado College; Colorado Springs CO USA
| | - Juan José Builes
- Laboratorios Genes Ltda; Medellín Colombia
- Instituto de Biología; Universidad de Antioquia; Medellín Colombia
| | - Marian M. de Pancorbo
- BIOMICs Research Group, Lascaray Research Center; University of the Basque Country UPV/EHU; Vitoria-Gasteiz Spain
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Prieto-Fernández E, Baeta M, Núñez C, Jiménez-Moreno S, de Pancorbo MM. A new 17 X-STR multiplex for forensic purposes. FORENSIC SCIENCE INTERNATIONAL GENETICS SUPPLEMENT SERIES 2015. [DOI: 10.1016/j.fsigss.2015.09.112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Alzate L, Agudelo N, Builes J. X-STRs as a tool for missing persons identification using only siblings as reference. FORENSIC SCIENCE INTERNATIONAL GENETICS SUPPLEMENT SERIES 2015. [DOI: 10.1016/j.fsigss.2015.10.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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32
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Lopez M, Manrique A, Aguirre D, Mendoza L, Bravo M, Salgar M, Puerto Y, Gusmão L, Builes J. Genetic data of 10 X-STR in an Afro-descendant population sample of the Department of Chocó—Colombia. FORENSIC SCIENCE INTERNATIONAL GENETICS SUPPLEMENT SERIES 2015. [DOI: 10.1016/j.fsigss.2015.09.200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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33
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Baeta M, Illescas MJ, García L, Núñez C, Prieto-Fernández E, Jiménez-Moreno S, de Pancorbo MM. Iberian allele frequency database for 10 X-STRs. Forensic Sci Int Genet 2015; 19:76-78. [DOI: 10.1016/j.fsigen.2015.06.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 06/23/2015] [Accepted: 06/24/2015] [Indexed: 10/23/2022]
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34
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Gomes I, Brehm A, Gusmão L, Schneider PM. New sequence variants detected at DXS10148, DXS10074 and DXS10134 loci. Forensic Sci Int Genet 2015; 20:112-116. [PMID: 26590332 DOI: 10.1016/j.fsigen.2015.10.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 09/29/2015] [Accepted: 10/15/2015] [Indexed: 10/22/2022]
Abstract
A great amount of population and forensic genetic data are available for X-STRs supporting the need for having a common and accurate nomenclature among laboratories allowing for better communication, data exchange, and data comparison. DXS10148, DXS10074 and DXS10134 are commonly used X-STRs particularly due to their inclusion in the commercial kit Investigator Argus X-12 (Qiagen). Samples from West Africa and Iraq were sequenced for all three X-STRs allowing the detection of new DNA sequence variants. At DXS10148, variation was detected at four bases downstream from the flanking region from the repeat motif. The sequence AAGG-AAAG has been detected for the first time as a varying (AAGG-AAAG)1-3 motif, in the present work. One additional string when compared to the common one (AAGG-AAAG)2 adds eight bases to the fragment size of the tetranucleotide STR. This means that 2 repeats are added in these cases to the fragment size of the allele, while the presence of only one copy will reduce the expected allele size by 2 repeats. At DXS10074 two varying stretches consisting of AC and AG dinucleotide repeats were observed in the upstream flanking region, six bases from the main repeat core that also influence the expected allele size. DXS10134 revealed a simpler nomenclature in the Guinea-Bissau sample set when compared to the previously described allele nomenclature. This detected new hidden variation also has impact on the actual allele nomenclature at this locus as it contributes to a new class of short alleles so far undetected in other studies.
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Affiliation(s)
- Iva Gomes
- Institute of Legal Medicine, Faculty of Medicine, University of Cologne, Cologne, Germany.
| | - António Brehm
- Human Genetics Laboratory, University of Madeira, Funchal, Portugal
| | - Leonor Gusmão
- DNA Diagnostic Laboratory (LDD), Institute of Biology, State University of Rio de Janeiro (UERJ), Brazil; IPATIMUP, Institute of Pathology and Molecular Immunology of the University of Porto, Porto, Portugal; Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Peter M Schneider
- Institute of Legal Medicine, Faculty of Medicine, University of Cologne, Cologne, Germany
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35
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Auler-Bittencourt E, Iwamura ESM, Lima MJM, da Silva IDCG, dos Santos SEB. Exploring the applicability of analysing X chromosome STRs in Brazilian admixed population. Sci Justice 2015; 55:323-8. [PMID: 26385714 DOI: 10.1016/j.scijus.2015.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 03/19/2015] [Accepted: 03/25/2015] [Indexed: 10/23/2022]
Abstract
Kinship and parentage analyses always involve one sample being compared to another sample or a few samples with a specific relationship question in mind. In most cases, the analysis of autosomal STR markers is sufficient to determine the genetic kinship. However, when genetic profiles are reconstructed from supposed relatives, for whom the family configuration available for analysis is deficient, the examination may be inconclusive. This study reports practical examples of actual cases analysing the efficiency of the chromosome X STR (STR-ChrX) markers. Three cases with different degrees of efficiency and impact were selected as follows: the identification of two charred bodies in a traffic accident, in which the family setting available was not complete, and one filiation analysis resulting from rape. This is the first paper reporting the use of the multiplex STR 12 ChrX in actual cases using the software Familias 1.8 and Brazilian regional frequency data. Our study clarifies the complex analysis using this powerful tool for professionals in the forensic science community, for both civil and criminal justice. We also discuss state-of-the-art ChrX STR markers and its implications and applications for legal procedures. The data presented here should be used in other studies of complex cases to improve the progress of the current justice system.
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Affiliation(s)
- Eloisa Auler-Bittencourt
- Laboratório de Ginecologia Molecular do Departamento de Ginecologia Universidade Federal de São Paulo, SP, Brazil
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36
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Forensic typing of short tandem repeat markers on the X and Y chromosomes. Forensic Sci Int Genet 2015; 18:140-51. [DOI: 10.1016/j.fsigen.2015.03.013] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 03/22/2015] [Accepted: 03/24/2015] [Indexed: 11/17/2022]
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37
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Kling D, Dell’Amico B, Tillmar AO. FamLinkX – implementation of a general model for likelihood computations for X-chromosomal marker data. Forensic Sci Int Genet 2015; 17:1-7. [DOI: 10.1016/j.fsigen.2015.02.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 01/16/2015] [Accepted: 02/20/2015] [Indexed: 11/26/2022]
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38
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Variation of X-chromosomal microsatellites in Belarus within the context of their genetic diversity in Europe. Forensic Sci Int Genet 2015; 16:105-111. [DOI: 10.1016/j.fsigen.2014.12.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2014] [Revised: 12/30/2014] [Accepted: 12/31/2014] [Indexed: 11/20/2022]
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39
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Huang DX, Ma HD, Yang RZ, Yi SH, Liu YX, Hu QQ. Development of a 9-locus X-STR multiplex PCR system for genetic analysis of three ethnic populations in China. ACTA ACUST UNITED AC 2015; 35:183-187. [PMID: 25877349 DOI: 10.1007/s11596-015-1408-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 12/31/2014] [Indexed: 11/29/2022]
Abstract
X-chromosome short tandem repeats (X-STR) analysis has been confirmed to be effective for kinship testing such as in deficiency paternity cases. The aim of this study was to develop a new multiplex polymerase chain reaction (PCR) system that can simultaneously amplify 9 X-STR loci (GATA172D05, DXS10159, DXS6797, HPRTB, DXS10079, DXS6789, DXS9895, DXS10146 and GATA31E08) in the same PCR reaction, and to obtain the database of the 9 X-STR loci in three ethnic populations in China. The genetic data of 815 (404 females and 411 males) unrelated Han Chinese from Hubei province, and Yi and Zhuang Chinese from Yunnan province were analyzed by using this multiplex system. The results showed that a total of 93 alleles for all these loci were found, and 7 to 20 alleles for each locus were observed. All of the analyzed loci were in agreement with Hardy-Weinberg equilibrium after Bonferroni correction in the three studied populations. The polymorphism information content (PIC) and power of discrimination (PD) in females were 0.6566-0.8531 and 0.8639-0.9684, respectively. Pairwise comparisons of allele frequency distribution showed significant differences in the most of these loci between different populations. The results indicate that this multiplex system is very useful for forensic analysis of different ethnic populations in China.
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Affiliation(s)
- Dai-Xin Huang
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Hong-du Ma
- Kunming People's Procuratorate, Kunming, 650224, China
| | - Rong-Zhi Yang
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Shao-Hua Yi
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yu-Xuan Liu
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Qing-Qing Hu
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
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40
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Brazilian genetic database of chromosome X. Mol Biol Rep 2014; 41:4077-80. [DOI: 10.1007/s11033-014-3277-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Accepted: 02/13/2014] [Indexed: 10/25/2022]
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41
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X-chromosome STR markers data in a Cabo Verde immigrant population of Lisboa. Mol Biol Rep 2014; 41:2559-69. [PMID: 24474659 DOI: 10.1007/s11033-014-3114-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Accepted: 01/10/2014] [Indexed: 10/25/2022]
Abstract
Population genetic data of 12 X chromosomal short tandem repeats markers (DXS10074, DXS10079, DXS10101, DXS10103, DXS10134, DXS10135, DXS10146, DXS10148, DXS7132, DXS7423, DXS8378 and HPRTB) were analysed in 54 females and 95 males of an immigrant population from Cabo Verde living in Lisboa. The obtained results for forensic statistical parameters such as observed heterozigosity, polymorphism information content, power of discrimination and mean exclusion chance, based on single allele frequencies, reveal that this multiplex system is highly informative and can represent an important tool for genetic identification purposes in the immigrant population of Cabo Verde. Since the studied short tandem repeats genetic markers are distributed on four linkage groups, that can provide independent genotype information, we studied those groups as haploytes. The forensic efficiency parameters for the linked groups were all higher than 0.97, with linkage group I being the most polymorphic and linkage group III the less informative.
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Trindade-Filho A, Ferreira S, Oliveira SF. Impact of a chromosome X STR Decaplex in deficiency paternity cases. Genet Mol Biol 2014; 36:507-10. [PMID: 24385853 PMCID: PMC3873181 DOI: 10.1590/s1415-47572013000400008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Accepted: 10/14/2013] [Indexed: 11/29/2022] Open
Abstract
Deficiency paternity cases, characterized by the absence of the alleged father, are a challenge for forensic genetics. Here we present four cases with a female child and a deceased alleged father in which the analysis of a set of 21 or 22 autosomal STRs (AS STRs) produced results within a range of doubt when genotyping relatives of the alleged father. Aiming to increase the Paternity Index (PI) and obtain more reliable results, a set of 10 X-linked STR markers, developed by the Spanish and Portuguese Group of the International Society for Forensic Genetics (ISFG), was then added. Statistical analysis substantially shifted the results towards the alleged fatherhood in all four cases, with more dramatic changes when the supposed half-sister and respective mother were the relatives tested.
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Affiliation(s)
- Aluisio Trindade-Filho
- Laboratório de Antropologia Forense, Instituto de Medicina Legal, Polícia Civil do Distrito Federal, Brasília, DF, Brazil . ; Programa de Pós-Graduação em Ciências da Saúde, Faculdade de Ciências da Saúde, Universidade de Brasília, Brasília, DF, Brazil
| | - Samuel Ferreira
- Instituto de Pesquisa de DNA Forense, Polícia Civil do Distrito Federal, Brasília, DF, Brazil
| | - Silviene F Oliveira
- Programa de Pós-Graduação em Ciências da Saúde, Faculdade de Ciências da Saúde, Universidade de Brasília, Brasília, DF, Brazil . ; Laboratório de Genética, Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, Brazil
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Glesmann LA, Martina PF, Catanesi CI. Genetic Variation of X-STRs in the Wichí Population from Chaco Province, Argentina. Hum Biol 2013; 85:687-98. [DOI: 10.3378/027.085.0503] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/17/2013] [Indexed: 11/05/2022]
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44
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Population genetic data for 15 X chromosomal short tandem repeat markers in three U.S. populations. Forensic Sci Int Genet 2013; 8:64-7. [PMID: 24315590 DOI: 10.1016/j.fsigen.2013.07.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Revised: 07/07/2013] [Accepted: 07/11/2013] [Indexed: 11/21/2022]
Abstract
314 African American, 434 U.S. Caucasian, and 398 U.S. Hispanic individuals were typed at X STR markers DXS6795, DXS9902, DXS8378, DXS7132, DXS6803, DXS6789, DXS7424, DXS101, GATA172D05, DXS7130, GATA165B12, HPRTB, GATA31E08, DXS10147, DXS7423. High forensic efficiency parameter values confirm the potential usefulness of these markers in certain specific kinship situations involving female offspring as well as identity testing. Alleles previously unobserved in U.S. populations were noted in this study at 8 different markers. Additionally, null alleles and a triallelic pattern were observed and described. Pairwise comparisons indicated consistency with similar published populations at overlapping markers. These data represent a substantial increase in the quantity of U.S. X chromosomal short tandem repeat data available to the community.
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45
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Alvarez-Nava F, Lanes R, Quintero JM, Miras M, Fideleff H, Mericq V, Marcano H, Zabala W, Soto M, Pardo T, Borjas L, Villalobos J, Gunczler P, Unanue N, Tkalenko N, Boyanofsky A, Silvano L, Franchioni L, Llano M, Fideleff G, Azaretzky M, Suarez M. Effect of the parental origin of the X-chromosome on the clinical features, associated complications, the two-year-response to growth hormone (rhGH) and the biochemical profile in patients with turner syndrome. INTERNATIONAL JOURNAL OF PEDIATRIC ENDOCRINOLOGY 2013; 2013:10. [PMID: 23731950 PMCID: PMC3679778 DOI: 10.1186/1687-9856-2013-10] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Accepted: 05/29/2013] [Indexed: 11/17/2022]
Abstract
Background It is possible that genes on the X chromosome are expressed differently depending of its parental origin. The objective of this study was to determine the influence of the parental origin of the X-chromosome on phenotypic variability, response to rhGH and on the biochemical profile of TS patients. Methods This was a cross-sectional multicenter correlational study carried out over three years in six Latin-American university hospitals. Unrelated 45,X TS patients (n = 93; 18.3 ± 8.5 years )) were evaluated. A subgroup (n = 34) of the patients were prospectively treated with rhGH over two years. DNA profiles of patients and their mothers were compared to determine the parental origin of the retained X-chromosome through 10 polymorphic X-chromosome-STRs. The association with clinical features, biochemical profiles and anthropometric data at the beginning and after two years of rhGH treatment was determined. Results Seventy two percent of patients retained the maternal X chromosome (Xm). A trend towards significance between maternal height and patients final height (p ≤ 0.07) in 45,Xm subjects was observed. There was no correlation between paternal height and patient height. No differences were detected between both groups in regard to dysmorphic features, classical malformations or increase in the height-SDS after rhGH. There were higher levels of triglycerides, total and LDL cholesterol in patients >20 years who retained the Xm. Conclusions The parental origin of the retained X chromosome may influence lipid metabolism in TS patients, but its effect on growth seems to be minimal. No parental-origin-effect on the phenotypic features, associated anomalies and on the growth response to rhGH was found in 45,X TS individuals.
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46
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Zidkova A, Coufalova P, Capek P. X-STR decaplex study on the population of Czech Republic. Int J Legal Med 2013; 128:271-2. [DOI: 10.1007/s00414-013-0860-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Accepted: 04/08/2013] [Indexed: 11/29/2022]
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47
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Laouina A, Aznar JM, Chbel F, de Pancorbo MM. Genetic data of X-chromosomal STRs in a Moroccan population sample (Casablanca) using an X-STR decaplex. Forensic Sci Int Genet 2013; 7:e90-2. [PMID: 23517901 DOI: 10.1016/j.fsigen.2013.02.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2012] [Revised: 01/30/2013] [Accepted: 02/23/2013] [Indexed: 11/28/2022]
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48
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Núñez C, Baeta M, Aznar JM, Sosa C, Casalod Y, Bolea M, Martínez de Pancorbo M, Martínez Jarreta B. Genetic diversity of 10 X chromosome STRs in an admixed population of Nicaragua. Forensic Sci Int Genet 2013; 7:e95-6. [PMID: 23523364 DOI: 10.1016/j.fsigen.2013.02.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2012] [Revised: 01/28/2013] [Accepted: 02/23/2013] [Indexed: 10/27/2022]
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49
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Paternity exclusion power: comparative behaviour of autosomal and X-chromosomal markers in standard and deficient cases with inbreeding. Forensic Sci Int Genet 2013; 7:290-5. [PMID: 23312390 DOI: 10.1016/j.fsigen.2012.12.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Revised: 12/04/2012] [Accepted: 12/06/2012] [Indexed: 11/22/2022]
Abstract
In paternity testing the informativeness of genetic markers is traditionally measured through the probability of finding, in randomly chosen individuals, inconsistencies with parent to child Mendelian rules of transmission. This statistic, called power of exclusion (PE), paternal exclusion chance or probability, can be defined for duos (mother not typed) or trios (random false fathers are matched against mother/child pairs) and performed both for autosomal and X-chromosomal markers (restricted to paternity testing involving daughters). PE is an a priori statistic, in the sense of not depending on the individual's genetic data of a case, being dependent however on the estimates of genetic markers allele (or haplotype) frequencies. We have studied the behaviour of this statistic in situations where the randomness assumption is not met, because either (a) the alleged - and false - father is related to the true one, or (b) there is a non-negligible level of background relatedness in the population. For the first case, we derived general (autosomal and X-chromosomal) PE formulas for duos and trios for any genealogy linking alleged father and child, highlighting that the PE of each marker only depends on a single kinship parameter associated with their pedigree. In this case we also estimate a lower bound for the number of extra markers needed to be analysed to achieve the same global power as for unrelated individuals. In the second situation, we demonstrate that for realistic values of the coancestry coefficient the decrease in PE due to population inbreeding is very moderate even when duos are analysed. In this work, beyond the aforementioned issues, we also discuss the suitability of assuming the pedigree father-daughter for calculating the X-PE, since X-markers are not the tool of choice in laboratorial routine when the alleged father is available for testing. Indeed, X-markers are particularly useful in situations where the alleged father is not available for testing but experts are able to type the mother or a daughter of his. Such increase of power is due to the paternal genealogies: half- and full-sisters, and grandmother-granddaughter, having a non-null X-PE even when only duos are analysed in contrast to what happens for autosomes. Algebraic expressions for these cases are also presented.
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Genetic data of 10 X-STRs in a population sample from Lima, Perú. FORENSIC SCIENCE INTERNATIONAL GENETICS SUPPLEMENT SERIES 2013. [DOI: 10.1016/j.fsigss.2013.10.087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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