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Stojanović Marković A, Zajc Petranović M, Tomas Ž, Puljko B, Šetinc M, Škarić-Jurić T, Peričić Salihović M. Untangling SNP Variations within CYP2D6 Gene in Croatian Roma. J Pers Med 2022; 12:jpm12030374. [PMID: 35330374 PMCID: PMC8951754 DOI: 10.3390/jpm12030374] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/18/2022] [Accepted: 02/23/2022] [Indexed: 02/06/2023] Open
Abstract
CYP2D6 is a highly polymorphic gene whose variations affect its enzyme activity. To assess whether the specific population history of Roma, characterized by constant migrations and endogamy, influenced the distribution of alleles and thus phenotypes, the CYP2D6 gene was sequenced using NGS (Next Generation Sequencing) method-targeted sequencing in three groups of Croatian Roma (N = 323) and results were compared to European and Asian populations. Identified single nucleotide polymorphisms (SNPs) were used to reconstruct haplotypes, which were translated into the star-allele nomenclature and later into phenotypes. A total of 43 polymorphic SNPs were identified. The three Roma groups differed significantly in the frequency of alleles of polymorphisms 6769 A > G, 6089 G > A, and 5264 A > G (p < 0.01), as well as in the prevalence of the five most represented star alleles: *1, *2, *4, *10, and *41 (p < 0.0001). Croatian Roma differ from the European and Asian populations in the accumulation of globally rare SNPs (6089 G > A, 4589 C > T, 4622 G > C, 7490 T > C). Our results also show that demographic history influences SNP variations in the Roma population. The three socio-culturally different Roma groups studied differ significantly in the distribution of star alleles, which confirms the importance of a separate study of different Roma groups.
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Affiliation(s)
- Anita Stojanović Marković
- Institute for Anthropological Research, 10000 Zagreb, Croatia; (A.S.M.); (M.Z.P.); (M.Š.); (T.Š.-J.)
| | - Matea Zajc Petranović
- Institute for Anthropological Research, 10000 Zagreb, Croatia; (A.S.M.); (M.Z.P.); (M.Š.); (T.Š.-J.)
| | - Željka Tomas
- Department for Translational Medicine, Srebrnjak Children’s Hospital, 10000 Zagreb, Croatia;
| | - Borna Puljko
- Croatian Institute for Brain Research, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia;
- Department for Chemistry and Biochemistry, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Maja Šetinc
- Institute for Anthropological Research, 10000 Zagreb, Croatia; (A.S.M.); (M.Z.P.); (M.Š.); (T.Š.-J.)
| | - Tatjana Škarić-Jurić
- Institute for Anthropological Research, 10000 Zagreb, Croatia; (A.S.M.); (M.Z.P.); (M.Š.); (T.Š.-J.)
| | - Marijana Peričić Salihović
- Institute for Anthropological Research, 10000 Zagreb, Croatia; (A.S.M.); (M.Z.P.); (M.Š.); (T.Š.-J.)
- Correspondence:
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Bianco E, Laval G, Font-Porterias N, García-Fernández C, Dobon B, Sabido-Vera R, Sukarova Stefanovska E, Kučinskas V, Makukh H, Pamjav H, Quintana-Murci L, Netea MG, Bertranpetit J, Calafell F, Comas D. Recent Common Origin, Reduced Population Size, and Marked Admixture Have Shaped European Roma Genomes. Mol Biol Evol 2020; 37:3175-3187. [PMID: 32589725 DOI: 10.1093/molbev/msaa156] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The Roma Diaspora-traditionally known as Gypsies-remains among the least explored population migratory events in historical times. It involved the migration of Roma ancestors out-of-India through the plateaus of Western Asia ultimately reaching Europe. The demographic effects of the Diaspora-bottlenecks, endogamy, and gene flow-might have left marked molecular traces in the Roma genomes. Here, we analyze the whole-genome sequence of 46 Roma individuals pertaining to four migrant groups in six European countries. Our analyses revealed a strong, early founder effect followed by a drastic reduction of ∼44% in effective population size. The Roma common ancestors split from the Punjabi population, from Northwest India, some generations before the Diaspora started, <2,000 years ago. The initial bottleneck and subsequent endogamy are revealed by the occurrence of extensive runs of homozygosity and identity-by-descent segments in all Roma populations. Furthermore, we provide evidence of gene flow from Armenian and Anatolian groups in present-day Roma, although the primary contribution to Roma gene pool comes from non-Roma Europeans, which accounts for >50% of their genomes. The linguistic and historical differentiation of Roma in migrant groups is confirmed by the differential proportion, but not a differential source, of European admixture in the Roma groups, which shows a westward cline. In the present study, we found that despite the strong admixture Roma had in their diaspora, the signature of the initial bottleneck and the subsequent endogamy is still present in Roma genomes.
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Affiliation(s)
- Erica Bianco
- Departament de Ciències Experimentals i de la Salut, Institut de Biologia Evolutiva (CSIC-UPF), Universitat Pompeu Fabra, Barcelona, Spain
| | - Guillaume Laval
- Human Evolutionary Genetics Unit, Department of Genomes and Genetics, UMR 2000, CNRS, Institut Pasteur, Paris, France
| | - Neus Font-Porterias
- Departament de Ciències Experimentals i de la Salut, Institut de Biologia Evolutiva (CSIC-UPF), Universitat Pompeu Fabra, Barcelona, Spain
| | - Carla García-Fernández
- Departament de Ciències Experimentals i de la Salut, Institut de Biologia Evolutiva (CSIC-UPF), Universitat Pompeu Fabra, Barcelona, Spain
| | - Begoña Dobon
- Departament de Ciències Experimentals i de la Salut, Institut de Biologia Evolutiva (CSIC-UPF), Universitat Pompeu Fabra, Barcelona, Spain
| | - Rubén Sabido-Vera
- Departament de Ciències Experimentals i de la Salut, Institut de Biologia Evolutiva (CSIC-UPF), Universitat Pompeu Fabra, Barcelona, Spain
| | - Emilija Sukarova Stefanovska
- Research Center for Genetic Engineering and Biotechnology "Georgi D. Efremov", Macedonian Academy of Science and Arts, Skopje, Macedonia
| | - Vaidutis Kučinskas
- Department of Human and Medical Genetics, Institute of Biomedical Sciences, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - Halyna Makukh
- Institute of Hereditary Pathology of the Ukrainian Academy of Medical Sciences, Lviv, Ukraine
| | - Horolma Pamjav
- Department of Reference Sample Analysis, Institute of Forensic Genetics, Hungarian Institute for Forensic Sciences, Budapest, Hungary
| | - Lluis Quintana-Murci
- Human Evolutionary Genetics Unit, Department of Genomes and Genetics, UMR 2000, CNRS, Institut Pasteur, Paris, France.,Chair Human Genomics and Evolution, Collège de France, Paris, France
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.,Department for Genomics & Immunoregulation, Life and Medical Sciences 12 Institute (LIMES), University of Bonn, Bonn, Germany
| | - Jaume Bertranpetit
- Departament de Ciències Experimentals i de la Salut, Institut de Biologia Evolutiva (CSIC-UPF), Universitat Pompeu Fabra, Barcelona, Spain
| | - Francesc Calafell
- Departament de Ciències Experimentals i de la Salut, Institut de Biologia Evolutiva (CSIC-UPF), Universitat Pompeu Fabra, Barcelona, Spain
| | - David Comas
- Departament de Ciències Experimentals i de la Salut, Institut de Biologia Evolutiva (CSIC-UPF), Universitat Pompeu Fabra, Barcelona, Spain
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3
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Dlouhá L, Adámková V, Šedová L, Olišarová V, Hubáček JA, Tóthová V. Five genetic polymorphisms of cytochrome P450 enzymes in the Czech non-Roma and Czech Roma population samples. Drug Metab Pers Ther 2020; 35:/j/dmdi.2020.35.issue-2/dmpt-2020-0103/dmpt-2020-0103.xml. [PMID: 32681777 DOI: 10.1515/dmpt-2020-0103] [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: 01/29/2020] [Accepted: 04/20/2020] [Indexed: 06/11/2023]
Abstract
Objectives Cytochromes P450 play a role in human drugs metabolic pathways and their genes are among the most variable in humans. The aim of this study was to analyze genotype frequencies of five common polymorphisms of cytochromes P450 in Roma/Gypsy and Czech (non-Roma) population samples with Czech origin. Methods Roma/Gypsy (n=302) and Czech subjects (n=298) were genotyped for CYP1A2 (rs762551), CYP2A6 (rs4105144), CYP2B6 (rs3745274) and CYP2D6 (rs3892097; rs1065852) polymorphisms using PCR-RFLP or Taqman assay. Results We found significant allelic/genotype differences between ethnics in three genes. For rs3745274 polymorphism, there was increased frequency of T allele carriers in Roma in comparison with Czech population (53.1 vs. 43.7%; p=0.02). For rs4105144 (CYP2A6) there was higher frequency of T allele carriers in Roma in comparison with Czech population (68.7 vs. 49.8%; p<0.0001). For rs3892097 (CYP2D6) there was more carriers of the A allele between Roma in comparison with Czech population (39.2 vs. 38.2%; p=0.048). Genotype/allelic frequencies of CYP2D6 (rs1065852) and CYP1A2 (rs762551) variants did not significantly differ between the ethnics. Conclusions There were significant differences in allelic/genotype frequencies of some, but not all cytochromes P450 polymorphisms between the Czech Roma/Gypsies and Czech non-Roma subjects.
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Affiliation(s)
- Lucie Dlouhá
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University, Prague, Czech Republic
| | - Věra Adámková
- Department of Preventive Cardiology for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Lenka Šedová
- Faculty of Health and Social Sciences, University of South Bohemia, České Budejovice, Czech Republic
| | - Věra Olišarová
- Faculty of Health and Social Sciences, University of South Bohemia, České Budejovice, Czech Republic
| | - Jaroslav A Hubáček
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Valérie Tóthová
- Faculty of Health and Social Sciences, University of South Bohemia, České Budejovice, Czech Republic
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4
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Dlouhá L, Adámková V, Šedová L, Olišarová V, Hubáček JA, Tóthová V. Five genetic polymorphisms of cytochrome P450 enzymes in the Czech non-Roma and Czech Roma population samples. Drug Metab Pers Ther 2020; 0:/j/dmdi.ahead-of-print/dmdi-2020-0103/dmdi-2020-0103.xml. [PMID: 32609646 DOI: 10.1515/dmdi-2020-0103] [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: 01/29/2020] [Accepted: 04/20/2020] [Indexed: 01/15/2023]
Abstract
Objectives Cytochromes P450 play a role in human drugs metabolic pathways and their genes are among the most variable in humans. The aim of this study was to analyze genotype frequencies of five common polymorphisms of cytochromes P450 in Roma/Gypsy and Czech (non-Roma) population samples with Czech origin. Methods Roma/Gypsy (n=302) and Czech subjects (n=298) were genotyped for CYP1A2 (rs762551), CYP2A6 (rs4105144), CYP2B6 (rs3745274) and CYP2D6 (rs3892097; rs1065852) polymorphisms using PCR-RFLP or Taqman assay. Results We found significant allelic/genotype differences between ethnics in three genes. For rs3745274 polymorphism, there was increased frequency of T allele carriers in Roma in comparison with Czech population (53.1 vs. 43.7%; p=0.02). For rs4105144 (CYP2A6) there was higher frequency of T allele carriers in Roma in comparison with Czech population (68.7 vs. 49.8%; p<0.0001). For rs3892097 (CYP2D6) there was more carriers of the A allele between Roma in comparison with Czech population (39.2 vs. 38.2%; p=0.048). Genotype/allelic frequencies of CYP2D6 (rs1065852) and CYP1A2 (rs762551) variants did not significantly differ between the ethnics. Conclusions There were significant differences in allelic/genotype frequencies of some, but not all cytochromes P450 polymorphisms between the Czech Roma/Gypsies and Czech non-Roma subjects.
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Affiliation(s)
- Lucie Dlouhá
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University, Prague, Czech Republic
| | - Věra Adámková
- Department of Preventive Cardiology for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Lenka Šedová
- Faculty of Health and Social Sciences, University of South Bohemia, České Budejovice, Czech Republic
| | - Věra Olišarová
- Faculty of Health and Social Sciences, University of South Bohemia, České Budejovice, Czech Republic
| | - Jaroslav A Hubáček
- Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Valérie Tóthová
- Faculty of Health and Social Sciences, University of South Bohemia, České Budejovice, Czech Republic
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5
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Dotto F, Mortera J, Baldassarri L, Pascali V. Analysis of a DNA mixture involving Romani reference populations. Forensic Sci Int Genet 2019; 44:102168. [PMID: 31786459 DOI: 10.1016/j.fsigen.2019.102168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 08/06/2019] [Accepted: 09/28/2019] [Indexed: 11/30/2022]
Abstract
Here we present an Italian criminal case that shows how statistical methods can be used to extract information from a series of mixed DNA profiles. The case involves several different individuals and a set of different DNA traces. The case possibly involves persons of interest of a small population of Romani origin. First, a brief description of the case is provided. Secondly, we introduce some heuristic tools that can be used to evaluate the data and we also briefly outline the statistical model used for analysing DNA mixtures. Finally, we illustrate some of the findings on the case and discuss further directions of research. The results show how the use of different population database allele frequencies for analysing the DNA mixtures can lead to very different results, some seemingly inculpatory and some seemingly exculpatory. We also illustrate the results obtained from combining the evidence from different samples.
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Ehler E, Vanek D. Forensic genetic analyses in isolated populations with examples of central European Valachs and Roma. J Forensic Leg Med 2017; 48:46-52. [PMID: 28454050 DOI: 10.1016/j.jflm.2017.04.001] [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: 11/09/2016] [Revised: 03/22/2017] [Accepted: 04/09/2017] [Indexed: 01/27/2023]
Abstract
Isolated populations present a constant threat to the correctness of forensic genetic casework. In this review article we present several examples of how analyzing samples from isolated populations can bias the results of the forensic statistics and analyses. We select our examples from isolated populations from central and southeastern Europe, namely the Valachs and the European Roma. We also provide the reader with general strategies and principles to improve the laboratory practice (best practice) and reporting of samples from supposedly isolated populations. These include reporting the precise population data used for computing the forensic statistics, using the appropriate θ correction factor for calculating allele frequencies, typing ancestry informative markers in samples of unknown or uncertain ethnicity and establishing ethnic-specific forensic databases.
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Affiliation(s)
- Edvard Ehler
- Department of Biology and Environmental Studies, Charles University in Prague, Faculty of Education, Magdaleny Rettigove 4, Prague, 116 39, Czech Republic; Institute of Anthropology, Faculty of Biology, Adam Mickiewicz University, ul. Umultowska 89, 61-614, Poznan, Poland.
| | - Daniel Vanek
- Forensic DNA Service, Janovskeho 18, Prague 7, 170 00, Czech Republic; Charles University in Prague, 2nd Faculty of Medicine, V Uvalu 84, Prague, 150 06, Czech Republic; Nemocnice Na Bulovce, Institute of Legal Medicine, Budinova 2, Prague, 180 81, Czech Republic.
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7
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Origins, admixture and founder lineages in European Roma. Eur J Hum Genet 2015; 24:937-43. [PMID: 26374132 DOI: 10.1038/ejhg.2015.201] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 07/20/2015] [Accepted: 08/11/2015] [Indexed: 11/08/2022] Open
Abstract
The Roma, also known as 'Gypsies', represent the largest and the most widespread ethnic minority of Europe. There is increasing evidence, based on linguistic, anthropological and genetic data, to suggest that they originated from the Indian subcontinent, with subsequent bottlenecks and undetermined gene flow from/to hosting populations during their diaspora. Further support comes from the presence of Indian uniparentally inherited lineages, such as mitochondrial DNA M and Y-chromosome H haplogroups, in a significant number of Roma individuals. However, the limited resolution of most genetic studies so far, together with the restriction of the samples used, have prevented the detection of other non-Indian founder lineages that might have been present in the proto-Roma population. We performed a high-resolution study of the uniparental genomes of 753 Roma and 984 non-Roma hosting European individuals. Roma groups show lower genetic diversity and high heterogeneity compared with non-Roma samples as a result of lower effective population size and extensive drift, consistent with a series of bottlenecks during their diaspora. We found a set of founder lineages, present in the Roma and virtually absent in the non-Roma, for the maternal (H7, J1b3, J1c1, M18, M35b, M5a1, U3, and X2d) and paternal (I-P259, J-M92, and J-M67) genomes. This lineage classification allows us to identify extensive gene flow from non-Roma to Roma groups, whereas the opposite pattern, although not negligible, is substantially lower (up to 6.3%). Finally, the exact haplotype matching analysis of both uniparental lineages consistently points to a Northwestern origin of the proto-Roma population within the Indian subcontinent.
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8
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Marin Thornton G. The Outsiders: Power Differentials between Roma and Non-Roma in Europe. ACTA ACUST UNITED AC 2014. [DOI: 10.1080/15705854.2013.873260] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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9
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Moorjani P, Patterson N, Loh PR, Lipson M, Kisfali P, Melegh BI, Bonin M, Kádaši Ľ, Rieß O, Berger B, Reich D, Melegh B. Reconstructing Roma history from genome-wide data. PLoS One 2013; 8:e58633. [PMID: 23516520 PMCID: PMC3596272 DOI: 10.1371/journal.pone.0058633] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Accepted: 02/05/2013] [Indexed: 11/29/2022] Open
Abstract
The Roma people, living throughout Europe and West Asia, are a diverse population linked by the Romani language and culture. Previous linguistic and genetic studies have suggested that the Roma migrated into Europe from South Asia about 1,000-1,500 years ago. Genetic inferences about Roma history have mostly focused on the Y chromosome and mitochondrial DNA. To explore what additional information can be learned from genome-wide data, we analyzed data from six Roma groups that we genotyped at hundreds of thousands of single nucleotide polymorphisms (SNPs). We estimate that the Roma harbor about 80% West Eurasian ancestry-derived from a combination of European and South Asian sources-and that the date of admixture of South Asian and European ancestry was about 850 years before present. We provide evidence for Eastern Europe being a major source of European ancestry, and North-west India being a major source of the South Asian ancestry in the Roma. By computing allele sharing as a measure of linkage disequilibrium, we estimate that the migration of Roma out of the Indian subcontinent was accompanied by a severe founder event, which appears to have been followed by a major demographic expansion after the arrival in Europe.
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Affiliation(s)
- Priya Moorjani
- Department of Genetics, Harvard Medical School, Boston, Massachusetts, United States of America
- Program in Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts, United States of America
| | - Nick Patterson
- Program in Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts, United States of America
| | - Po-Ru Loh
- Department of Mathematics and Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Mark Lipson
- Department of Mathematics and Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Péter Kisfali
- Department of Medical Genetics and Szentagothai Research Center, University of Pécs, Pécs, Hungary
| | - Bela I. Melegh
- Department of Medical Genetics and Szentagothai Research Center, University of Pécs, Pécs, Hungary
| | - Michael Bonin
- Department of Medical Genetics, University of Tübingen, Tübingen, Germany
| | - Ľudevít Kádaši
- Institute of Molecular Physiology and Genetics, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Olaf Rieß
- Department of Medical Genetics, University of Tübingen, Tübingen, Germany
| | - Bonnie Berger
- Department of Mathematics and Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - David Reich
- Department of Genetics, Harvard Medical School, Boston, Massachusetts, United States of America
- Program in Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts, United States of America
| | - Béla Melegh
- Department of Medical Genetics and Szentagothai Research Center, University of Pécs, Pécs, Hungary
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Pereira V, Gusmão L, Valente C, Pereira R, Carneiro J, Gomes I, Morling N, Amorim A, João Prata M. Refining the genetic portrait of Portuguese Roma through X-chromosomal markers. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2012; 148:389-94. [PMID: 22576185 DOI: 10.1002/ajpa.22061] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2011] [Accepted: 02/27/2012] [Indexed: 12/29/2022]
Abstract
Due to differences in transmission between X-chromosomal and autosomal DNA, the comparison of data derived from both markers allows deeper insight into the forces that shape the patterns of genetic diversity in populations. In this study, we applied this comparative approach to a sample of Portuguese Roma (Gypsies) by analyzing 43 X-chromosomal markers and 53 autosomal markers. Portuguese individuals of non-Gypsy ancestry were also studied. Compared with the host population, reduced levels of diversity on the X chromosome and autosomes were detected in Gypsies; this result was in line with known patterns of genetic diversity typical of Roma groups. As a consequence of the complex demographic past of the Roma, during which admixture and genetic drift played major roles, the amount of linkage disequilibrium (LD) on the X chromosome in Gypsies was considerably higher than that observed in non-Gypsies. When the pattern of differentiation on the X chromosome was compared with that of autosomes, there was evidence for asymmetries in female and male effective population sizes during the admixture between Roma and non-Roma. This result supplements previous data provided by mtDNA and the Y chromosome, underlining the importance of using combined information from the X chromosome and autosomes to dissect patterns of genetic diversity. Following the out-of-India dispersion, the Roma acquired a complex genetic pattern that was influenced by drift and introgression with surrounding populations, with important contributions from both males and females. We provide evidence that a sex-biased admixture with Europeans is probably associated with the founding of the Portuguese Gypsies.
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Affiliation(s)
- Vânia Pereira
- Institute of Molecular Pathology and Immunology of the University of Porto, Portugal.
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11
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Colonna V, Pagani L, Xue Y, Tyler-Smith C. A world in a grain of sand: human history from genetic data. Genome Biol 2011; 12:234. [PMID: 22104725 PMCID: PMC3334592 DOI: 10.1186/gb-2011-12-11-234] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Genome-wide genotypes and sequences are enriching our understanding of the past 50,000 years of human history and providing insights into earlier periods largely inaccessible to mitochondrial DNA and Y-chromosomal studies. To see a world in a grain of sand ... William Blake, Auguries of Innocence
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Affiliation(s)
- Vincenza Colonna
- The Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridgeshire, UK
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12
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Salihović MP, Barešić A, Klarić IM, Cukrov S, Lauc LB, Janićijević B. The role of the Vlax Roma in shaping the European Romani maternal genetic history. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2011; 146:262-70. [DOI: 10.1002/ajpa.21566] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Accepted: 05/09/2011] [Indexed: 11/07/2022]
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13
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Mendizabal I, Valente C, Gusmão A, Alves C, Gomes V, Goios A, Parson W, Calafell F, Alvarez L, Amorim A, Gusmão L, Comas D, Prata MJ. Reconstructing the Indian origin and dispersal of the European Roma: a maternal genetic perspective. PLoS One 2011; 6:e15988. [PMID: 21264345 PMCID: PMC3018485 DOI: 10.1371/journal.pone.0015988] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Accepted: 12/02/2010] [Indexed: 12/01/2022] Open
Abstract
Previous genetic, anthropological and linguistic studies have shown that Roma (Gypsies) constitute a founder population dispersed throughout Europe whose origins might be traced to the Indian subcontinent. Linguistic and anthropological evidence point to Indo-Aryan ethnic groups from North-western India as the ancestral parental population of Roma. Recently, a strong genetic hint supporting this theory came from a study of a private mutation causing primary congenital glaucoma. In the present study, complete mitochondrial control sequences of Iberian Roma and previously published maternal lineages of other European Roma were analyzed in order to establish the genetic affinities among Roma groups, determine the degree of admixture with neighbouring populations, infer the migration routes followed since the first arrival to Europe, and survey the origin of Roma within the Indian subcontinent. Our results show that the maternal lineage composition in the Roma groups follows a pattern of different migration routes, with several founder effects, and low effective population sizes along their dispersal. Our data allowed the confirmation of a North/West migration route shared by Polish, Lithuanian and Iberian Roma. Additionally, eleven Roma founder lineages were identified and degrees of admixture with host populations were estimated. Finally, the comparison with an extensive database of Indian sequences allowed us to identify the Punjab state, in North-western India, as the putative ancestral homeland of the European Roma, in agreement with previous linguistic and anthropological studies.
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Affiliation(s)
- Isabel Mendizabal
- Institute of Evolutionary Biology (CSIC-UPF), CEXS-UPF-PRBB, Barcelona, Spain
| | - Cristina Valente
- Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Porto, Portugal
- Faculty of Sciences, University of Porto, Porto, Portugal
| | - Alfredo Gusmão
- Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Porto, Portugal
| | - Cíntia Alves
- Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Porto, Portugal
| | - Verónica Gomes
- Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Porto, Portugal
| | - Ana Goios
- Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Porto, Portugal
| | - Walther Parson
- Institute of Legal Medicine, Innsbruck Medical University, Innsbruck, Austria
| | - Francesc Calafell
- Institute of Evolutionary Biology (CSIC-UPF), CEXS-UPF-PRBB, Barcelona, Spain
- CIBER de Epidemiología y Salud Pública, (CIBERESP), Barcelona, Spain
| | - Luis Alvarez
- Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Porto, Portugal
| | - António Amorim
- Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Porto, Portugal
- Faculty of Sciences, University of Porto, Porto, Portugal
| | - Leonor Gusmão
- Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Porto, Portugal
| | - David Comas
- Institute of Evolutionary Biology (CSIC-UPF), CEXS-UPF-PRBB, Barcelona, Spain
- CIBER de Epidemiología y Salud Pública, (CIBERESP), Barcelona, Spain
- * E-mail:
| | - Maria João Prata
- Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Porto, Portugal
- Faculty of Sciences, University of Porto, Porto, Portugal
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Valente C, Gomes I, Pereira V, Amorim A, Gusmão L, Prata MJ. Association between STRs from the X chromosome in a sample of Portuguese Gypsies. FORENSIC SCIENCE INTERNATIONAL GENETICS SUPPLEMENT SERIES 2009. [DOI: 10.1016/j.fsigss.2009.08.113] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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