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Borisova TV, Cherdonova AM, Pshennikova VG, Teryutin FM, Morozov IV, Bondar AA, Baturina OA, Kabilov MR, Romanov GP, Solovyev AV, Fedorova SA, Barashkov NA. High prevalence of m.1555A > G in patients with hearing loss in the Baikal Lake region of Russia as a result of founder effect. Sci Rep 2024; 14:15342. [PMID: 38961196 PMCID: PMC11222474 DOI: 10.1038/s41598-024-66254-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 07/01/2024] [Indexed: 07/05/2024] Open
Abstract
Mitochondrial forms account approximately 1-2% of all nonsyndromic cases of hearing loss (HL). One of the most common causative variants of mtDNA is the m.1555A > G variant of the MT-RNR1 gene (OMIM 561000). Currently the detection of the m.1555A > G variant of the MT-RNR1 gene is not included in all research protocols. In this study this variant was screened among 165 patients with HL from the Republic of Buryatia, located in the Baikal Lake region of Russia. In our study, the total contribution of the m.1555A > G variant to the etiology of HL was 12.7% (21/165), while the update global prevalence of this variant is 1.8% (863/47,328). The m.1555A > G variant was notably more prevalent in Buryat (20.2%) than in Russian patients (1.3%). Mitogenome analysis in 14 unrelated Buryat families carrying the m.1555A > G variant revealed a predominant lineage: in 13 families, a cluster affiliated with sub-haplogroup A5b (92.9%) was identified, while one family had the D5a2a1 lineage (7.1%). In a Russian family with the m.1555A > G variant the lineage affiliated with sub-haplogroup F1a1d was found. Considering that more than 90% of Buryat families with the m.1555A > G variant belong to the single maternal lineage cluster we conclude that high prevalence of this variant in patients with HL in the Baikal Lake region can be attributed to a founder effect.
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Affiliation(s)
- Tuyara V Borisova
- Laboratory of Molecular Biology, Institute of Natural Sciences, M.K. Ammosov North-Eastern Federal University, Kulakovskogo 46, 677013, Yakutsk, Russia
| | - Aleksandra M Cherdonova
- Laboratory of Molecular Biology, Institute of Natural Sciences, M.K. Ammosov North-Eastern Federal University, Kulakovskogo 46, 677013, Yakutsk, Russia
| | - Vera G Pshennikova
- Laboratory of Molecular Biology, Institute of Natural Sciences, M.K. Ammosov North-Eastern Federal University, Kulakovskogo 46, 677013, Yakutsk, Russia
- Laboratory of Molecular Genetics, Yakut Science Centre of Complex Medical Problems, Yaroslavskogo 6/3, 677000, Yakutsk, Russia
| | - Fedor M Teryutin
- Laboratory of Molecular Biology, Institute of Natural Sciences, M.K. Ammosov North-Eastern Federal University, Kulakovskogo 46, 677013, Yakutsk, Russia
- Laboratory of Molecular Genetics, Yakut Science Centre of Complex Medical Problems, Yaroslavskogo 6/3, 677000, Yakutsk, Russia
| | - Igor V Morozov
- SB RAS Genomics Core Facility, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Prospekt Akademika Lavrentieva 8, 630090, Novosibirsk, Russia
- Novosibirsk State University, 630090, Novosibirsk, Russia
| | - Alexander A Bondar
- SB RAS Genomics Core Facility, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Prospekt Akademika Lavrentieva 8, 630090, Novosibirsk, Russia
| | - Olga A Baturina
- SB RAS Genomics Core Facility, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Prospekt Akademika Lavrentieva 8, 630090, Novosibirsk, Russia
| | - Marsel R Kabilov
- SB RAS Genomics Core Facility, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Prospekt Akademika Lavrentieva 8, 630090, Novosibirsk, Russia
| | - Georgii P Romanov
- Laboratory of Molecular Biology, Institute of Natural Sciences, M.K. Ammosov North-Eastern Federal University, Kulakovskogo 46, 677013, Yakutsk, Russia
| | - Aisen V Solovyev
- Laboratory of Molecular Biology, Institute of Natural Sciences, M.K. Ammosov North-Eastern Federal University, Kulakovskogo 46, 677013, Yakutsk, Russia
| | - Sardana A Fedorova
- Laboratory of Molecular Biology, Institute of Natural Sciences, M.K. Ammosov North-Eastern Federal University, Kulakovskogo 46, 677013, Yakutsk, Russia
- Laboratory of Molecular Genetics, Yakut Science Centre of Complex Medical Problems, Yaroslavskogo 6/3, 677000, Yakutsk, Russia
| | - Nikolay A Barashkov
- Laboratory of Molecular Biology, Institute of Natural Sciences, M.K. Ammosov North-Eastern Federal University, Kulakovskogo 46, 677013, Yakutsk, Russia.
- Laboratory of Molecular Genetics, Yakut Science Centre of Complex Medical Problems, Yaroslavskogo 6/3, 677000, Yakutsk, Russia.
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Jia M, Li Q, Zhang T, Dong B, Liang X, Fu S, Yu J. Genetic Diversity Analysis of the Chinese Daur Ethnic Group in Heilongjiang Province by Complete Mitochondrial Genome Sequencing. Front Genet 2022; 13:919063. [PMID: 35801081 PMCID: PMC9253502 DOI: 10.3389/fgene.2022.919063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/12/2022] [Indexed: 11/30/2022] Open
Abstract
Mitochondrial DNA (mtDNA) has the characteristics of maternal inheritance, high mutation rate, high copy number, and no recombination. As the most powerful tool for studying the origin and evolution of modern humans, mtDNA has great significance in the research of population genetics and evolutionary genetics. Here, we provide new insights into the maternal genetic history of the Daur ethnic group by generating complete mitochondrial genomes from a total of 146 Daur individuals in China. We also collected the published complete mitochondrial genome sequences of 5,094 individuals from 56 worldwide populations as reference data to further explore the matrilineal genetic landscape of the Daur ethnic group. First, the haplotype diversity was 0.9943 ± 0.0019 and nucleotide diversity was 0.0428 ± 0.0210. The neutrality tests of the Daur group showed significant negative values and the mismatch distribution curve was obviously distributed in a unimodal pattern. The results showed that the Daur ethnic group has high genetic diversity and may have experienced recent population expansion. In addition, the main haplogroups of the Daur population were haplogroup D (31.51%), M* (20.55%), C (10.28%), F (7.53%), and B (6.85%), all of which were prevalent in northern China. It probably implies the northern Chinese origin of the Daur population. The PCA, FST, and phylogenetic analysis results indicated that the Daur group formed a cluster with East Asian populations, and had few genetic differences with the populations in northern China. More importantly, we found that disease-related mutation sites of the mitochondrial genome may be related to ethnic groups, which may have important implications for the prevention and occurrence of specific diseases. Overall, this study revealed the complexity and diversity of the matrilineal genetic background of the Daur ethnic group. Meanwhile, it provided meaningful data for the research on the diversity of the human genome.
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Affiliation(s)
- Mansha Jia
- Scientific Research Centre, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Qiuyan Li
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Ministry of Education, Harbin, China
- Editorial Department of International Journal of Genetics, Harbin Medical University, Harbin, China
| | - Tingting Zhang
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Ministry of Education, Harbin, China
| | - Bonan Dong
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Ministry of Education, Harbin, China
| | - Xiao Liang
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Ministry of Education, Harbin, China
| | - Songbin Fu
- Laboratory of Medical Genetics, Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Ministry of Education, Harbin, China
- *Correspondence: Songbin Fu, ; Jingcui Yu,
| | - Jingcui Yu
- Scientific Research Centre, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Ministry of Education, Harbin, China
- *Correspondence: Songbin Fu, ; Jingcui Yu,
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Pham VH, Nguyen VL, Jung HE, Cho YS, Shin JG. The frequency of the known mitochondrial variants associated with drug-induced toxicity in a Korean population. BMC Med Genomics 2022; 15:3. [PMID: 34980117 PMCID: PMC8722126 DOI: 10.1186/s12920-021-01153-0] [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: 10/14/2021] [Accepted: 12/16/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Few studies have annotated the whole mitochondrial DNA (mtDNA) genome associated with drug responses in Asian populations. This study aimed to characterize mtDNA genetic profiles, especially the distribution and frequency of well-known genetic biomarkers associated with diseases and drug-induced toxicity in a Korean population. METHOD Whole mitochondrial genome was sequenced for 118 Korean subjects by using a next-generation sequencing approach. The bioinformatic pipeline was constructed for variant calling, haplogroup classification and annotation of mitochondrial mutation. RESULTS A total of 681 variants was identified among all subjects. The MT-TRNP gene and displacement loop showed the highest numbers of variants (113 and 74 variants, respectively). The m.16189T > C allele, which is known to reduce the mtDNA copy number in human cells was detected in 25.4% of subjects. The variants (m.2706A > G, m.3010A > G, and m.1095T > C), which are associated with drug-induced toxicity, were observed with the frequency of 99.15%, 30.51%, and 0.08%, respectively. The m.2150T > A, a genotype associated with highly disruptive effects on mitochondrial ribosomes, was identified in five subjects. The D and M groups were the most dominant groups with the frequency of 34.74% and 16.1%, respectively. CONCLUSIONS Our finding was consistent with Korean Genome Project and well reflected the unique profile of mitochondrial haplogroup distribution. It was the first study to annotate the whole mitochondrial genome with drug-induced toxicity to predict the ADRs event in clinical implementation for Korean subjects. This approach could be extended for further study for validation of the potential ethnic-specific mitochondrial genetic biomarkers in the Korean population.
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Affiliation(s)
- Vinh Hoa Pham
- Department of Pharmacology and Pharmacogenomics Research Center, Inje University, College of Medicine, 633-165 Gaegum-Dong, Jin-Gu, Busan, Republic of Korea
| | - Van Lam Nguyen
- Department of Pharmacology and Pharmacogenomics Research Center, Inje University, College of Medicine, 633-165 Gaegum-Dong, Jin-Gu, Busan, Republic of Korea
| | - Hye-Eun Jung
- Department of Pharmacology and Pharmacogenomics Research Center, Inje University, College of Medicine, 633-165 Gaegum-Dong, Jin-Gu, Busan, Republic of Korea.,Department of Precision Medicine, SPMED Co., Ltd., Busan, 46508, Republic of Korea
| | - Yong-Soon Cho
- Department of Pharmacology and Pharmacogenomics Research Center, Inje University, College of Medicine, 633-165 Gaegum-Dong, Jin-Gu, Busan, Republic of Korea.,Department of Pharmacology and Clinical Pharmacology, PharmacoGenomics Research Center, Inje University College of Medicine, Busan, 47392, Republic of Korea.,Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Busan, Republic of Korea
| | - Jae-Gook Shin
- Department of Pharmacology and Pharmacogenomics Research Center, Inje University, College of Medicine, 633-165 Gaegum-Dong, Jin-Gu, Busan, Republic of Korea. .,Department of Pharmacology and Clinical Pharmacology, PharmacoGenomics Research Center, Inje University College of Medicine, Busan, 47392, Republic of Korea. .,Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Busan, Republic of Korea.
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Xin Y, Jia R, Zhang S, Guo F. Mitochondrial genome sequencing with short overlapping amplicons on MiSeq FGx system. Forensic Sci Res 2021; 7:142-153. [PMID: 35784421 PMCID: PMC9246037 DOI: 10.1080/20961790.2021.1963514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/22/2021] [Accepted: 07/29/2021] [Indexed: 11/03/2022] Open
Abstract
With the development and maturation of massively parallel sequencing (MPS) technology, the mitochondrial genome (mitogenome) sequencing is increasingly applied in the forensic field. In this study, we employed the strategy of short overlapping amplicons for the whole mitogenome, library preparation with tagmentation using the Nextera® XT DNA Library Preparation Kit, sequencing on the MiSeq FGxTM Forensic Genomics System and analyzing data using the mitochondrial(mtDNA) MSR Plug-in and the mtDNA Variant Analyzer. A total of 27 libraries and 56 libraries were sequenced in a run using MiSeq Reagent Kit v2 and v3, respectively. Results showed more than 1800 × of averaged depth of coverage (DoC) at each position. Concordant haplotypes of 9947 A and 2800 M were obtained at 32 variants. Cross-reactivity was observed with 1 ng primate DNA and 10 ng non-primate DNA but could be easily distinguished. Full and accurate variants were obtained from at least 50 pg input DNA and from minor contributors between 19:1 and 1:19 mixed ratios with known reference profiles. More than 86% variants were detected from ≥200-bp degraded samples but its haplotype was assigned to more ancestral haplogroup. Further, a total of 3 962 variants were observed at 613 nucleotide positions from 103 Xibe mitogenomes with 25:1 ratio of transitions to transversions. Two new transversions (C13735A and A14755C) and two tri-alleles at nps 9824 and 16092 were identified. There were 103 unique mitogenome haplotypes from 103 Chinese Xibe that were assigned to 79 haplogroups. Haplogroup D was the preponderant top-level haplogroup in Xibe followed by F, B, M, A, N, G, C, Z, Y, HV and J. Random match probability (RMP) and haplotype diversity (HD) of the whole mitogenome was calculated as 0.0097 and 1.0000, respectively. Compared with HVS-I only, RMP decreased 33.56%, while the number of haplotypes and HD increased 15.73% and 0.49%, respectively. Principal component analysis (PCA) showed that Xibe was clustered to East and Southeast Asian. As a whole, this MPS strategy is suitable for the whole mitogenome sequencing especially for degraded samples and can facilitate generating mitogenome data to support the routine application in forensic sciences. EMP00726 is the first whole mitogenome dataset from Xibe contributed to the EMPOP. Supplemental data for this article are available online at.
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Affiliation(s)
- Yang Xin
- Forensic Science College, Criminal Investigation Police University of China, Shenyang, China
| | - Rulin Jia
- Forensic Science College, Criminal Investigation Police University of China, Shenyang, China
| | - Suhua Zhang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Ministry of Justice, Shanghai, China
| | - Fei Guo
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Ministry of Justice, Shanghai, China
- Forensic Science College, Criminal Investigation Police University of China, Shenyang, China
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Ta MTA, Nguyen NN, Tran DM, Nguyen TH, Vu TA, Le DT, Le PT, Do TTH, Hoang H, Chu HH. Massively parallel sequencing of human skeletal remains in Vietnam using the precision ID mtDNA control region panel on the Ion S5™ system. Int J Legal Med 2021; 135:2285-2294. [PMID: 34196785 DOI: 10.1007/s00414-021-02649-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 06/21/2021] [Indexed: 11/30/2022]
Abstract
Mitochondrial DNA (mtDNA) analysis using Sanger sequencing has been a routine practice for the identification of human skeletal remains. However, this process is usually challenging since DNA from the remains is highly degraded and at low concentration. Recently, the advent and implementation of massively parallel sequencing (MPS) have been offered the ability to improve mtDNA sequence data for forensic analysis. To assess the utility of the Ion S5™ system - an MPS platform for mtDNA analysis in challenging samples, we sequenced the mitochondrial control region of 52 age-old skeletal remains. Using the Precision ID mtDNA Control Region Panel, 50 full and two partial control region haplotypes at relatively high mean coverage of 2494 × were achieved for variant calling. Further variant analysis at 10% threshold for point heteroplasmy showed high degradation degree in terms of DNA damage in our bone samples. A higher point heteroplasmy threshold of 20% was required to diminish most of background noise caused by the damage. The results from this study indicated the potential application of the Ion S5™ system in sequencing degraded samples in Vietnam and provided valuable data sources for forensic analyses in the future.
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Affiliation(s)
- May Thi Anh Ta
- Centre for DNA Identification, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Nam Ngoc Nguyen
- Centre for DNA Identification, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Duc Minh Tran
- Centre for DNA Identification, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Trang Hong Nguyen
- National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, 100000, Vietnam
| | - Tuan Anh Vu
- Centre for DNA Identification, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Dung Thi Le
- Centre for DNA Identification, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Phuong Thi Le
- Centre for DNA Identification, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Thu Thi Hong Do
- Centre for DNA Identification, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ha Hoang
- Centre for DNA Identification, Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.,National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, 100000, Vietnam
| | - Hoang Ha Chu
- National Key Laboratory of Gene Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, 100000, Vietnam. .,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
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Yue WQ, Sun ML, Han F, Li JJ, Rigzin T, Dhondup T, Liu HB, Li DY, Li X, Xu YM, Li XN. Investigation of control region sequences of mtDNA in Naqu Tibetan population from Northwestern China. Ann Hum Biol 2021; 48:70-77. [PMID: 33461338 DOI: 10.1080/03014460.2021.1877351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND The sequence polymorphisms of mitochondrial DNA (mtDNA) are valuable in forensic medicine and anthropological genetics. AIM We analysed the sequences of the mtDNA control region in 207 unrelated Tibetan individuals from the Naqu region, Tibet Autonomous Region in the People's Republic of China, and investigated the population structure of the region by population comparison with other groups. SUBJECTS AND METHODS Genomic DNA was extracted and hypervariable regions (HVS-I and HVS-II) were amplified and sequenced. Subsequently, sequences were aligned and compared with the revised Cambridge sequence. Moreover, population comparison was performed between the Naqu Tibetan group and the other groups. CONCLUSION Our study provided available data for exploring the mtDNA haplotype of the Tibetan population in the Naqu region, and population comparisons found that the Naqu Tibetan population has its own unique structure.
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Affiliation(s)
- Wen-Qing Yue
- School of Fundamental Sciences, China Medical University, Shenyang, China
| | - Mao-Ling Sun
- School of Fundamental Sciences, China Medical University, Shenyang, China
| | - Feng Han
- Medical Department, Shengjing Hospital affiliated to China Medical University, Shenyang, China
| | - Jiu-Jun Li
- Department of Pediatrics, Shengjing Hospital affiliated to China Medical University, Shenyang, China
| | - Tsewang Rigzin
- Department of Internal Medicine, Naqu People's Hospital in Tibet, Naqu, China
| | - Tashi Dhondup
- Department of Pediatrics, Shengjing Hospital affiliated to China Medical University, Shenyang, China.,Saijo Township Health Center, Naqu, China
| | - Hai-Bo Liu
- School of Fundamental Sciences, China Medical University, Shenyang, China
| | - Dong-Yue Li
- School of Fundamental Sciences, China Medical University, Shenyang, China
| | - Xuan Li
- School of Innovation, China Medical University, Shenyang, China
| | - Yan-Ming Xu
- School of Innovation, China Medical University, Shenyang, China
| | - Xiao-Na Li
- School of Fundamental Sciences, China Medical University, Shenyang, China
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Dashti M, Alsaleh H, Eaaswarkhanth M, John SE, Nizam R, Melhem M, Hebbar P, Sharma P, Al-Mulla F, Thanaraj TA. Delineation of Mitochondrial DNA Variants From Exome Sequencing Data and Association of Haplogroups With Obesity in Kuwait. Front Genet 2021; 12:626260. [PMID: 33659027 PMCID: PMC7920096 DOI: 10.3389/fgene.2021.626260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 01/13/2021] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND/OBJECTIVES Whole-exome sequencing is a valuable tool to determine genetic variations that are associated with rare and common health conditions. A limited number of studies demonstrated that mitochondrial DNA can be captured using whole-exome sequencing. Previous studies have suggested that mitochondrial DNA variants and haplogroup lineages are associated with obesity. Therefore, we investigated the role of mitochondrial variants and haplogroups contributing to the risk of obesity in Arabs in Kuwait using exome sequencing data. SUBJECTS/METHODS Indirect mitochondrial genomes were extracted from exome sequencing data from 288 unrelated native Arab individuals from Kuwait. The cohort was divided into obese [body mass index (BMI) ≥ 30 kg/m2] and non-obese (BMI < 30 kg/m2) groups. Mitochondrial variants were identified, and haplogroups were classified and compared with other sequencing technologies. Statistical analysis was performed to determine associations and identify mitochondrial variants and haplogroups affecting obesity. RESULTS Haplogroup R showed a protective effect on obesity [odds ratio (OR) = 0.311; P = 0.006], whereas haplogroup L individuals were at high risk of obesity (OR = 2.285; P = 0.046). Significant differences in mitochondrial variants between the obese and non-obese groups were mainly haplogroup-defining mutations and were involved in processes in energy generation. The majority of mitochondrial variants and haplogroups extracted from exome were in agreement with technical replica from Sanger and whole-genome sequencing. CONCLUSIONS This is the first to utilize whole-exome data to extract entire mitochondrial haplogroups to study its association with obesity in an Arab population.
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Affiliation(s)
- Mohammed Dashti
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Hussain Alsaleh
- Kuwait Identification DNA Laboratory, General Department of Criminal Evidence, Ministry of Interior, Kuwait City, Kuwait
| | | | - Sumi Elsa John
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Rasheeba Nizam
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Motasem Melhem
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Prashantha Hebbar
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Prem Sharma
- Department Special Services Facilities, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Fahd Al-Mulla
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
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Dashti M, Alsaleh H, Rodriguez-Flores JL, Eaaswarkhanth M, Al-Mulla F, Thanaraj TA. Mitochondrial haplogroup J associated with higher risk of obesity in the Qatari population. Sci Rep 2021; 11:1091. [PMID: 33441698 PMCID: PMC7806807 DOI: 10.1038/s41598-020-80040-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Accepted: 12/16/2020] [Indexed: 11/10/2022] Open
Abstract
Obesity, a major risk factor for metabolic disorders, is highly prevalent in Qatari population. Maternal transmission of obesity traits can be significant; for example, X haplogroup is known to be associated with lower BMI and body fat mass in Northern Europeans and T haplogroup which is a sister haplogroup of J is known to be associated with obesity in Caucasian subjects from Austria and Southern Italy. We aimed to delineate the mitochondrial haplogroups and variants associated with obesity in Qatari population. Mitochondrial genomes of 864 Qatari individuals were extracted from whole exome sequencing data with an average coverage of 77X. We distributed the participants into 2 sub-cohorts: obese (BMI ≥ 30) and non-obese (BMI < 30); the mean value of BMI from these two groups were 36.5 ± 5.7 and 26.5 ± 2.6, respectively. Mitochondrial haplogroup profiling followed by uni- and multivariant association tests adjusted for covariates were performed. Qatari individuals with mitochondrial haplogroup J had an increased (twofold) risk of obesity (odds ratio [OR] 1.925; 95% CI 1.234–3.002; P = 0.0038; the Bonferroni adjusted P value threshold is 0.0041), whereas the individuals with haplogroup X were at low risk of obesity (OR 0.387; 95% CI 0.175–0.857; P = 0.019). Further, a set of 38 mitochondrial variants were found to be associated (at P ≤ 0.05) with obesity in models adjusted for age, sex and haplogroup.
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Affiliation(s)
- Mohammed Dashti
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Hussain Alsaleh
- Kuwait Identification DNA Laboratory, General Department of Criminal Evidence, Ministry of Interior, Kuwait City, Kuwait
| | | | | | - Fahd Al-Mulla
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City, Kuwait.
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Melchionda F, Stanciu F, Buscemi L, Pesaresi M, Tagliabracci A, Turchi C. Searching the undetected mtDNA variants in forensic MPS data. Forensic Sci Int Genet 2020; 49:102399. [PMID: 33038616 DOI: 10.1016/j.fsigen.2020.102399] [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: 06/12/2020] [Revised: 08/27/2020] [Accepted: 09/21/2020] [Indexed: 10/23/2022]
Abstract
The efficiency of MPS in forensic mtDNA analysis has been thoroughly proven, although a reliable and well established data evaluation still remains a critical point. Numerous bioinformatics tools have been developed, but most of them require specific operating systems and high costs, while free open-source programs with user-friendly interfaces are few. In this study, 43 full mtGenomes were sequenced using the Ion Personal Genome Machine™ (PGM™) System and analyzed utilizing the plug-in Variant Caller (TVC) of the Ion Torrent Software Suite and the mtDNA-Server (mDS), a free web-based mitochondrial analysis tool for MPS data. The outcomes of these two different analysis tools were compared to variants noted after manual inspection of the aligned reads performed using Integrative Genomics Viewer (IGV). The comparison highlighted the presence of thirty-nine discordant variant calls, which were resolved by Sanger sequencing that confirmed the presence of all variants, except for 7 deletions. The combined adoption of IGV and Sanger type sequencing confirmatory steps, in addition of TVC and mDS analysis, resulted in a more accurate variants assignment with the detection of 32 additional true polymorphisms, which were noted in the final dataset. Regarding the heteroplasmy issue, out of a total of thirty heteroplasmic variants, twenty-eight were detected by the TVC, while the mDS detected twenty-two. Overall, none of the used bioinformatics tools were the perfect choice and a secondary analysis with an expert's opinion in complete mtGenome MPS data evaluation is still required in forensic genetic analysis.
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Affiliation(s)
- Filomena Melchionda
- Section of Legal Medicine, Department of Excellence of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy - Via Tronto, 60126 Torrette Ancona, Italy.
| | - Florin Stanciu
- Romanian National DNA Database, National Forensic Science Institute, General Inspectorate of Romanian Police, Bucharest, Romania.
| | - Loredana Buscemi
- Section of Legal Medicine, Department of Excellence of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy - Via Tronto, 60126 Torrette Ancona, Italy.
| | - Mauro Pesaresi
- Section of Legal Medicine, Department of Excellence of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy - Via Tronto, 60126 Torrette Ancona, Italy.
| | - Adriano Tagliabracci
- Section of Legal Medicine, Department of Excellence of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy - Via Tronto, 60126 Torrette Ancona, Italy.
| | - Chiara Turchi
- Section of Legal Medicine, Department of Excellence of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy - Via Tronto, 60126 Torrette Ancona, Italy.
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10
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Dryomov SV, Starikovskaya EB, Nazhmidenova AM, Morozov IV, Sukernik RI. Genetic legacy of cultures indigenous to the Northeast Asian coast in mitochondrial genomes of nearly extinct maritime tribes. BMC Evol Biol 2020; 20:83. [PMID: 32660486 PMCID: PMC7359603 DOI: 10.1186/s12862-020-01652-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 07/06/2020] [Indexed: 11/27/2022] Open
Abstract
Background We have described the diversity of complete mtDNA sequences from ‘relic’ groups of the Russian Far East, primarily the Nivkhi (who speak a language isolate with no clear relatedness to any others) and Oroki of Sakhalin, as well as the sedentary Koryak from Kamchatka and the Udegey of Primorye. Previous studies have shown that most of their traditional territory was dramatically reshaped by the expansion of Tungusic-speaking groups. Results Overall, 285 complete mitochondrial sequences were selected for phylogenetic analyses of published, revised and new mitogenomes. To highlight the likely role of Neolithic expansions in shaping the phylogeographical landscape of the Russian Far East, we focus on the major East Eurasian maternal lineages (Y1a, G1b, D4m2, D4e5, M7a2, and N9b) that are restricted to the coastal area. To obtain more insight into autochthonous populations, we removed from the phylogeographic analysis the G2a, G3a2, M8a1, M9a1, and C4b1 lineages, also found within our samples, likely resulting from admixture between the expanding proto-Tungus and the indigenous Paleoasiatic groups with whom they assimilated. Phylogenetic analysis reveals that unlike the relatively diverse lineage spectrum observed in the Amur estuary and northwestern Sakhalin, the present-day subpopulation on the northeastern coast of the island is relatively homogenous: a sole Y1a sublineage, conspicuous for its nodal mutation at m.16189 T > C!, includes different haplotypes. Sharing of the Y1a-m.16189 T > C! sublineages and haplotypes among the Nivkhi, Ulchi and sedentary Koryak is also evident. Aside from Y1a, the entire tree approach expands our understanding of the evolutionary history of haplogroups G1, D4m, N9b, and M7a2. Specifically, we identified the novel haplogroup N9b1 in Primorye, which implies a link between a component of the Udegey ancestry and the Hokkaido Jomon. Conclusions Through a comprehensive dataset of mitochondrial genomes retained in autochthonous populations along the coast between Primorye and the Bering Strait, we considerably extended the sequence diversity of these populations to provide new features based on the number and timing of founding lineages. We emphasize the value of integrating genealogical information with genetic data for reconstructing the population history of indigenous groups dramatically impacted by twentieth century resettlement and social upheavals.
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Affiliation(s)
- Stanislav V Dryomov
- Laboratory of Human Molecular Genetics, Institute of Molecular and Cellular Biology, SBRAS, Novosibirsk, Russian Federation
| | - Elena B Starikovskaya
- Laboratory of Human Molecular Genetics, Institute of Molecular and Cellular Biology, SBRAS, Novosibirsk, Russian Federation
| | - Azhar M Nazhmidenova
- Laboratory of Human Molecular Genetics, Institute of Molecular and Cellular Biology, SBRAS, Novosibirsk, Russian Federation
| | - Igor V Morozov
- Institute of Biological Chemistry and Fundamental Medicine, SBRAS, Novosibirsk, Russian Federation.,Novosibirsk State University, Novosibirsk, Russian Federation
| | - Rem I Sukernik
- Laboratory of Human Molecular Genetics, Institute of Molecular and Cellular Biology, SBRAS, Novosibirsk, Russian Federation.
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11
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Koo BS, Song Y, Lee S, Sung YK, Shin KJ, Cho NH, Jun JB. Analysis of Asian Mitochondrial DNA Haplogroups Associated With the Progression of Knee Osteoarthritis in Koreans. JOURNAL OF RHEUMATIC DISEASES 2020. [DOI: 10.4078/jrd.2020.27.3.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Bon San Koo
- Department of Internal Medicine, Inje University Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - Yoonah Song
- Departments of Radiology Hanyang University Hospital for Rheumatic Diseases, Seoul, Korea
| | - Seunghun Lee
- Departments of Radiology Hanyang University Hospital for Rheumatic Diseases, Seoul, Korea
| | - Yoon-Kyoung Sung
- Departments of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Korea
| | - Kyoung-Jin Shin
- Department of Forensic Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Nam H. Cho
- Department of Preventive Medicine, Ajou University School of Medicine, Suwon, Korea
| | - Jae-Bum Jun
- Departments of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Korea
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12
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Brandhagen MD, Just RS, Irwin JA. Validation of NGS for mitochondrial DNA casework at the FBI Laboratory. Forensic Sci Int Genet 2019; 44:102151. [PMID: 31629185 DOI: 10.1016/j.fsigen.2019.102151] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 08/21/2019] [Accepted: 08/22/2019] [Indexed: 01/09/2023]
Abstract
As a first step towards integrating next generation sequencing (NGS) technology into the FBI Laboratory's operational casework, the PowerSeq™ CRM Nested System, an NGS-based mitochondrial DNA (mtDNA) control region assay, was developmentally and internally validated. The validation studies were conducted in accordance with the Scientific Working Group on DNA Analysis Methods (SWGDAM) Validation Guidelines for Forensic DNA Analysis Methods, and the FBI's Quality Assurance Standards (QAS) for Forensic DNA Testing Laboratories. The assay was shown to be highly reproducible, with variant frequencies across intra and inter-run replicates of the same sample differing, on average, by just 0.3% for substitutions and point heteroplasmies and 1.5% for insertions and deletions. The assay was also shown to be extremely sensitive, yielding complete control region sequence data from as few as 2000 copies of mtDNA. This is a more than 20-fold increase in sensitivity when compared to the FBI Laboratory's current Sanger sequencing-based protocols and, based on mtDNA quantitation values of samples routinely encountered in mtDNA casework, suggests that the percentage of questioned samples from which full control region data can be recovered will increase from our current 20% to approximately 90% success with NGS technology. In addition, the assay requires on average only 30% of the extract volume typically required to develop control region profiles from degraded samples via Sanger sequencing. Overall, these studies establish the reliability of the PowerSeq™ CRM Nested System for accurate mtDNA control region typing and can serve as a model for laboratories seeking to validate NGS protocols for forensic mtDNA analysis.
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Affiliation(s)
| | - Rebecca S Just
- FBI Laboratory, 2501 Investigation Parkway, Quantico, VA 22135, USA.
| | - Jodi A Irwin
- FBI Laboratory, 2501 Investigation Parkway, Quantico, VA 22135, USA.
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13
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Amorim A, Fernandes T, Taveira N. Mitochondrial DNA in human identification: a review. PeerJ 2019; 7:e7314. [PMID: 31428537 PMCID: PMC6697116 DOI: 10.7717/peerj.7314] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 06/18/2019] [Indexed: 11/21/2022] Open
Abstract
Mitochondrial DNA (mtDNA) presents several characteristics useful for forensic studies, especially related to the lack of recombination, to a high copy number, and to matrilineal inheritance. mtDNA typing based on sequences of the control region or full genomic sequences analysis is used to analyze a variety of forensic samples such as old bones, teeth and hair, as well as other biological samples where the DNA content is low. Evaluation and reporting of the results requires careful consideration of biological issues as well as other issues such as nomenclature and reference population databases. In this work we review mitochondrial DNA profiling methods used for human identification and present their use in the main cases of humanidentification focusing on the most relevant issues for forensics.
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Affiliation(s)
- António Amorim
- Instituto Nacional de Medicina Legal e Ciências Forenses, Lisboa, Portugal
- Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal
| | - Teresa Fernandes
- Escola de Ciências e Tecnologias, Universidade de Évora, Évora, Portugal
- Research Center for Anthropology and Health (CIAS), Universidade de Coimbra, Coimbra, Portugal
| | - Nuno Taveira
- Instituto Universitário Egas Moniz (IUEM), Almada, Portugal
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
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14
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Avila E, Graebin P, Chemale G, Freitas J, Kahmann A, Alho CS. Full mtDNA genome sequencing of Brazilian admixed populations: A forensic-focused evaluation of a MPS application as an alternative to Sanger sequencing methods. Forensic Sci Int Genet 2019; 42:154-164. [PMID: 31325893 DOI: 10.1016/j.fsigen.2019.07.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 07/03/2019] [Accepted: 07/08/2019] [Indexed: 12/13/2022]
Abstract
The use of Massive Parallel Sequencing (MPS) techniques have been proposed by the forensic community as an alternative to Sanger sequencing methods in routine forensic casework analysis regarding mitochondrial DNA (mtDNA). Interesting features of MPS include high throughput, ability to simultaneously genotype a significant number of samples by barcoding techniques, processing automation, reduced time and costs, among others. Advantages include the capability of generating full mtDNA genome sequences versus usual techniques, usually limited to hypervariable or control regions exclusively. In this work, 96 reference single-source samples from three different Brazilian cities were subjected to full mtDNA genome sequencing by MPS techniques using an early-access version of Precision ID mtDNA Whole Genome Panel on an Ion Torrent PGM platform (Thermo Fisher Scientific, Waltham, MA, USA). Complete, high-quality sequences were obtained and sequencing performance was evaluated via four different metrics. As a subset of evaluated samples have been previously submitted for Sanger sequencing of the control region, a comparative analysis of both methods' results was conducted in order to compare technique adequacy within a forensic context. Even though this study is one of the first to report full mtDNA genome sequences for Brazilian admixed populations, the observed haplotypes exhibit a predominance of Native American and African maternal lineages in the studied sample set, reproducing results described in the literature for control regions only. Interpopulation analysis among Brazilian and 26 worldwide populations was also carried out. The results indicate that MPS-generated full mtDNA genome sequences may have great utility in forensic real casework applications, with a pronounced gain of genetic information and discrimination power provided by coding region evaluation and the enhanced capacity of heteroplasmies determination. Database construction and other relevant factors concerning implementation of such techniques in Brazilian forensic laboratories are also discussed.
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Affiliation(s)
- E Avila
- Setor Técnico-Científico, Superintendência Regional do Rio Grande do Sul, Polícia Federal, Porto Alegre, Brazil; Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil; Instituto Nacional de Ciência e Tecnologia INCT Ciências Forenses, Porto Alegre, Brazil.
| | - P Graebin
- Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - G Chemale
- Setor Técnico-Científico, Superintendência Regional do Rio Grande do Sul, Polícia Federal, Porto Alegre, Brazil
| | - J Freitas
- Instituto Nacional de Criminalística, Polícia Federal, Brasília, DF, Brazil
| | - A Kahmann
- Instituto de Matemática, Estatística e Física, Universidade Federal de Rio Grande, Rio Grande, Brazil
| | - C S Alho
- Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil; Instituto Nacional de Ciência e Tecnologia INCT Ciências Forenses, Porto Alegre, Brazil
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15
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Kim MY, Cho S, Lee JH, Seo HJ, Lee SD. Detection of Innate and Artificial Mitochondrial DNA Heteroplasmy by Massively Parallel Sequencing: Considerations for Analysis. J Korean Med Sci 2018; 33:e337. [PMID: 30584415 PMCID: PMC6300661 DOI: 10.3346/jkms.2018.33.e337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 10/02/2018] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Mitochondrial heteroplasmy, the co-existence of different mitochondrial polymorphisms within an individual, has various forensic and clinical implications. But there is still no guideline on the application of massively parallel sequencing (MPS) in heteroplasmy detection. We present here some critical issues that should be considered in heteroplasmy studies using MPS. METHODS Among five samples with known innate heteroplasmies, two pairs of mixture were generated for artificial heteroplasmies with target minor allele frequencies (MAFs) ranging from 50% to 1%. Each sample was amplified by two-amplicon method and sequenced by Ion Torrent system. The outcomes of two different analysis tools, Torrent Suite Variant Caller (TVC) and mtDNA-Server (mDS), were compared. RESULTS All the innate heteroplasmies were detected correctly by both analysis tools. Average MAFs of artificial heteroplasmies correlated well to the target values. The detection rates were almost 90% for high-level heteroplasmies, but decreased for low-level heteroplasmies. TVC generally showed lower detection rates than mDS, which seems to be due to their own computation algorithms which drop out some reference-dominant heteroplasmies. Meanwhile, mDS reported several unintended low-level heteroplasmies which were suggested as nuclear mitochondrial DNA sequences. The average coverage depth of each sample placed on the same chip showed considerable variation. The increase of coverage depth had no effect on the detection rates. CONCLUSION In addition to the general accuracy of the MPS application on detecting heteroplasmy, our study indicates that the understanding of the nature of mitochondrial DNA and analysis algorithm would be crucial for appropriate interpretation of MPS results.
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Affiliation(s)
- Moon-Young Kim
- Department of Forensic Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Sohee Cho
- Institute of Forensic Science, Seoul National University College of Medicine, Seoul, Korea
| | - Ji Hyun Lee
- Department of Forensic Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Hee Jin Seo
- Department of Forensic Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Soong Deok Lee
- Department of Forensic Medicine, Seoul National University College of Medicine, Seoul, Korea
- Institute of Forensic Science, Seoul National University College of Medicine, Seoul, Korea
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16
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King JL, Churchill JD, Novroski NM, Zeng X, Warshauer DH, Seah LH, Budowle B. Increasing the discrimination power of ancestry- and identity-informative SNP loci within the ForenSeq™ DNA Signature Prep Kit. Forensic Sci Int Genet 2018; 36:60-76. [DOI: 10.1016/j.fsigen.2018.06.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 05/03/2018] [Accepted: 06/05/2018] [Indexed: 11/26/2022]
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17
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Evaluation of the precision ID whole MtDNA genome panel for forensic analyses. Forensic Sci Int Genet 2018; 35:21-25. [PMID: 29626805 DOI: 10.1016/j.fsigen.2018.03.013] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 02/20/2018] [Accepted: 03/28/2018] [Indexed: 12/18/2022]
Abstract
Mitochondrial DNA (mtDNA) amplification and Massively Parallel Sequencing (MPS) using an early access version of the Precision ID Whole MtDNA Genome Panel (Thermo Fisher Scientific) and the Ion Personal Genome Machine (PGM) were evaluated using 15 forensically relevant samples. Samples were selected to represent typical forensic specimens for mtDNA analysis including hairs, hair shafts, swabs and ancient solid tissue samples (bones and teeth) that were stored in the freezer for up to several years after having been typed with conventional Sanger-type Sequencing and Capillary Electrophoresis. The MPS haplotypes confirmed the earlier results in all samples and provided additional sequence information that improved discrimination power and haplogroup estimation. The results raised the appetite for further experiments to validate and apply the new technology in forensic practice.
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18
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Massively parallel sequencing-enabled mixture analysis of mitochondrial DNA samples. Int J Legal Med 2018; 132:1263-1272. [PMID: 29468381 DOI: 10.1007/s00414-018-1799-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 02/09/2018] [Indexed: 01/03/2023]
Abstract
The mitochondrial genome has a number of characteristics that provide useful information to forensic investigations. Massively parallel sequencing (MPS) technologies offer improvements to the quantitative analysis of the mitochondrial genome, specifically the interpretation of mixed mitochondrial samples. Two-person mixtures with nuclear DNA ratios of 1:1, 5:1, 10:1, and 20:1 of individuals from different and similar phylogenetic backgrounds and three-person mixtures with nuclear DNA ratios of 1:1:1 and 5:1:1 were prepared using the Precision ID mtDNA Whole Genome Panel and Ion Chef, and sequenced on the Ion PGM or Ion S5 sequencer (Thermo Fisher Scientific, Waltham, MA, USA). These data were used to evaluate whether and to what degree MPS mixtures could be deconvolved. Analysis was effective in identifying the major contributor in each instance, while SNPs from the minor contributor's haplotype only were identified in the 1:1, 5:1, and 10:1 two-person mixtures. While the major contributor was identified from the 5:1:1 mixture, analysis of the three-person mixtures was more complex, and the mixed haplotypes could not be completely parsed. These results indicate that mixed mitochondrial DNA samples may be interpreted with the use of MPS technologies.
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19
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Wai KT, Barash M, Gunn P. Performance of the Early Access AmpliSeq™ Mitochondrial Panel with degraded DNA samples using the Ion Torrent™ platform. Electrophoresis 2018; 39:2776-2784. [PMID: 29330875 DOI: 10.1002/elps.201700371] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 12/07/2017] [Accepted: 12/16/2017] [Indexed: 11/12/2022]
Abstract
The Early Access AmpliSeq™ Mitochondrial Panel amplifies whole mitochondrial genomes for phylogenetic and kinship identifications, using Ion Torrent™ technology. There is currently limited information on its performance with degraded DNA, a common occurrence in forensic samples. This study evaluated the performance of the Panel with DNA samples degraded in vitro, to mimic conditions commonly found in forensic investigations. Purified DNA from five individuals was heat-treated at five time points each (125°C for 0, 30, 60, 120, and 240 min; total n = 25). The quality of DNA was assessed via a real-time DNA assay of genomic DNA and prepared for massively parallel sequencing on the Ion Torrent™ platform. Mitochondrial sequences were obtained for all samples and had an amplicon coverage averaging between 66X to 2803X. Most amplicons (157/162) displayed high coverages (452 ± 333X), while reads with less than 100X coverage were recorded in five amplicons only (90 ± 5X). Amplicon coverage was decreased with prolonged heating. At 72% strand balance, reads were well balanced between forward and reverse strands. Using a coverage threshold of ten reads per SNP, complete sequences were recovered in all samples and resolved kinship and, haplogroup relations. Additionally, the HV1 and HV2 regions of the reference and 240-min heat-treated samples (n = 10) were Sanger-sequenced for concordance. Overall, this study demonstrates the efficacy of a novel forensic Panel that recovers high quality mitochondrial sequences from degraded DNA samples.
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Affiliation(s)
- Ka Tak Wai
- University of Technology Sydney, Centre for Forensic Science, Sydney, NSW, Australia
| | - Mark Barash
- University of Technology Sydney, Centre for Forensic Science, Sydney, NSW, Australia
| | - Peter Gunn
- University of Technology Sydney, Centre for Forensic Science, Sydney, NSW, Australia
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20
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Skonieczna K, Malyarchuk B, Jawień A, Marszałek A, Banaszkiewicz Z, Jarmocik P, Grzybowski T. Mitogenomic differences between the normal and tumor cells of colorectal cancer patients. Hum Mutat 2018; 39:691-701. [PMID: 29330893 DOI: 10.1002/humu.23402] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 12/18/2017] [Accepted: 01/05/2018] [Indexed: 12/13/2022]
Abstract
So far, a reliable spectrum of mitochondrial DNA mutations in colorectal cancer cells is still unknown, and neither is their significance in carcinogenesis. Indeed, it remains debatable whether mtDNA mutations are "drivers" or "passengers" of colorectal carcinogenesis. Thus, we analyzed 200 mitogenomes from normal and cancer tissues of 100 colorectal cancer patients. Minority variant mutations were detected at the 1% level. We showed that somatic mutations frequently occur in colorectal cancer cells (75%) and are randomly distributed across the mitochondrial genome. Mutational signatures of somatic mitogenome mutations suggest that they might arise through nucleotide deamination due to oxidative stress. The majority of somatic mutations localized within the coding region (in positions not known from the human phylogeny) and was potentially pathogenic to cell metabolism. Further analysis suggested that the relaxation of negative selection in the mitogenomes of colorectal cancer cells may allow accumulation of somatic mutations. Thus, a shift in glucose metabolism from oxidative phosphorylation to glycolysis may create advantageous conditions for accumulation of mtDNA mutations. Considering the fact that the presence of somatic mtDNA mutations was not associated with any clinicopathological features, we suggested that mtDNA somatic mutations are "passengers" rather than the cause of colorectal carcinogenesis.
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Affiliation(s)
- Katarzyna Skonieczna
- Division of Molecular and Forensic Genetics, Department of Forensic Medicine, Faculty of Medicine, Nicolaus Copernicus University, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Boris Malyarchuk
- Institute of Biological Problems of the North, Far-East Branch of the Russian Academy of Sciences, Magadan, Russia
| | - Arkadiusz Jawień
- Department of Vascular Surgery and Angiology, Faculty of Medicine, Nicolaus Copernicus University, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Andrzej Marszałek
- Department of Pathology, Faculty of Medicine, Nicolaus Copernicus University, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland.,Department of Tumor Pathology and Prophylaxis, Poznan University of Medical Sciences and Greater Poland Cancer Center, Poznan, Poland
| | - Zbigniew Banaszkiewicz
- Department of Vascular Surgery and Angiology, Faculty of Medicine, Nicolaus Copernicus University, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Paweł Jarmocik
- Department of Vascular Surgery and Angiology, Faculty of Medicine, Nicolaus Copernicus University, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
| | - Tomasz Grzybowski
- Division of Molecular and Forensic Genetics, Department of Forensic Medicine, Faculty of Medicine, Nicolaus Copernicus University, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
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21
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Cho S, Kim MY, Lee JH, Lee SD. Assessment of mitochondrial DNA heteroplasmy detected on commercial panel using MPS system with artificial mixture samples. Int J Legal Med 2017; 132:1049-1056. [PMID: 29279961 DOI: 10.1007/s00414-017-1755-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 11/30/2017] [Indexed: 01/05/2023]
Abstract
Mitochondrial DNA (mtDNA) heteroplasmy is a potential genetic marker for forensic mtDNA analysis as well as phylogenic studies. Frequency of mtDNA heteroplasmy has been investigated in different populations through massively parallel sequencing (MPS) analysis, revealing various levels of frequency based on different MPS systems. For accurate heteroplasmy identification, it is essential to explore reliable detection threshold on various MPS systems. In addition, software solutions and pipelines need to be evaluated to analyze data effectively. In this study, heteroplasmy analysis was conducted on a commercially available mtDNA analysis system developed for forensic caseworks with artificially mixed DNA samples known for ratios and variant positions for assessment. mtDNA heteroplasmy > 10% was detectable with Torrent Variant Caller (TVC) while lower levels were identified using GeneMarker® HTS specialized software for minor variant detection. This study implies that analytical parameters and tools need to be optimized and evaluated for low-level heteroplasmy identification. Automated system with simple and efficient workflow is needed for forensic caseworks.
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Affiliation(s)
- Sohee Cho
- Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Moon Young Kim
- Department of Forensic Medicine, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Ji Hyun Lee
- Department of Forensic Medicine, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - Soong Deok Lee
- Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea. .,Department of Forensic Medicine, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea.
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