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Flores-Bello A, Bauduer F, Salaberria J, Oyharçabal B, Calafell F, Bertranpetit J, Quintana-Murci L, Comas D. Genetic origins, singularity, and heterogeneity of Basques. Curr Biol 2021; 31:2167-2177.e4. [DOI: 10.1016/j.cub.2021.03.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/22/2021] [Accepted: 03/02/2021] [Indexed: 02/09/2023]
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2
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Luis JR, Palencia-Madrid L, Mendoza VC, Garcia-Bertrand R, de Pancorbo MM, Herrera RJ. The Y chromosome of autochthonous Basque populations and the Bronze Age replacement. Sci Rep 2021; 11:5607. [PMID: 33692401 PMCID: PMC7970938 DOI: 10.1038/s41598-021-84915-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 02/19/2021] [Indexed: 11/09/2022] Open
Abstract
Here we report on the Y haplogroup and Y-STR diversity of the three autochthonous Basque populations of Alava (n = 54), Guipuzcoa (n = 30) and Vizcaya (n = 61). The same samples genotyped for Y-chromosome SNPs were typed for 17 Y-STR loci (DYS19, DYS385a/b, DYS398I/II, DYS390, DYS391, DYS392, DYS393, DYS437, DYS438, DYS439, DYS448, DYS456, DYS458, DYS635, Y-GATA H4) using the AmpFlSTR Yfiler system. Six major haplogroups (R, I, E, J, G, and DE) were detected, being R-S116 (P312) haplogroup the most abundant at 75.0% in Alava, 86.7% in Guipuzcoa and 87.3% in Vizcaya. Age estimates for the R-S116 mutation in the Basque Country are 3975 ± 303, 3680 ± 345 and 4553 ± 285 years for Alava, Guipuzcoa and Vizcaya, respectively. Pairwise Rst genetic distances demonstrated close Y-chromosome affinities among the three autochthonous Basque populations and between them and the male population of Ireland and Gascony. In a MDS plot, the population of Ireland segregates within the Basque cluster and closest to the population of Guipuzcoa, which plots closer to Ireland than to any of the other Basque populations. Overall, the results support the notion that during the Bronze Age a dispersal of individuals carrying the R-S116 mutation reached the Basque Country replacing the Paleolithic/Neolithic Y chromosome of the region.
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Affiliation(s)
- Javier Rodriguez Luis
- Area de Antropología, Facultad de Biología, Universidad de Santiago de Compostela, Campus Sur s/n, 15782, Santiago de Compostela, Spain
| | - Leire Palencia-Madrid
- BIOMICs Research Group, Dpto. Z. y Biologia Celular A., Lascaray Research Centre, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain
| | - Vivian C Mendoza
- Department of Molecular Biology, Colorado College, Colorado Springs, CO, 80903, USA
| | | | - Marian M de Pancorbo
- BIOMICs Research Group, Dpto. Z. y Biologia Celular A., Lascaray Research Centre, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain
| | - Rene J Herrera
- Department of Molecular Biology, Colorado College, Colorado Springs, CO, 80903, USA.
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3
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Cost-effective straightforward method for captured whole mitogenome sequencing of ancient DNA. Forensic Sci Int 2020; 319:110638. [PMID: 33340848 DOI: 10.1016/j.forsciint.2020.110638] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 10/28/2020] [Accepted: 11/29/2020] [Indexed: 11/21/2022]
Abstract
Working with mitochondrial DNA from highly degraded samples is challenging. We present a whole mitogenome Illumina-based sequencing method suitable for highly degraded samples. The method makes use of double-stranded library preparation with hybridization-based target enrichment. The aim of the study was to implement a new user-friendly method for analysing many ancient DNA samples at low cost. The method combines the Swift 2S™ Turbo library preparation kit and xGen® panel for mitogenome enrichment. Swift allows to use low input of aDNA and own adapters and primers, handles inhibitors well, and has only two purification steps. xGen is straightforward to use and is able to leverage already pooled libraries. Given the ancient DNA is more challenging to work with, the protocol was developed with several improvements, especially multiplying DNA input in case of low concentration DNA extractions followed by AMPure® beads size selection and real-time pre-capture PCR monitoring in order to avoid cycle-optimization step. Nine out of eleven analysed samples successfully retrieved mitogenomes. Hence, our method provides an effective analysis of whole mtDNA, and has proven to be fast, cost-effective, straightforward, with utilisation in population-wide research of burial sites.
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5
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Biagini SA, Ramos-Luis E, Comas D, Calafell F. The place of metropolitan France in the European genomic landscape. Hum Genet 2020; 139:1091-1105. [DOI: 10.1007/s00439-020-02158-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 03/25/2020] [Indexed: 10/24/2022]
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6
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García Ó, Alonso S, Huber N, Bodner M, Parson W. Forensically relevant phylogeographic evaluation of mitogenome variation in the Basque Country. Forensic Sci Int Genet 2020; 46:102260. [PMID: 32062111 DOI: 10.1016/j.fsigen.2020.102260] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 11/26/2019] [Accepted: 02/01/2020] [Indexed: 11/19/2022]
Abstract
The Basque Country has been the focus of population (genetic) and evolutionary studies for decades, as it represents an interesting evolutionary feature: it is the only European country where a non-Indo-European language is still spoken today and, for which there are no known living or extinct relatives. Early studies that were based on anatomical and serological methods, along with subsequent molecular genetic investigations, contain controversial interpretations of their data. Additionally, the analysis of mitochondrial DNA, which is maternally inherited and thus suitable for the examination of the maternal phylogeny of the population, was the focus of some studies. Early mtDNA studies were however restricted to the information provided by the control region or its hypervariable segments only. These are known to harbour little phylogenetic information, particularly for haplogroup H that is dominant in Westeurasian populations including the Basques. Later studies analysed complete mitogenome sequences. Their information content is however limited, either because the number of samples was low, or because these studies only considered particular haplogroups. In this study we present the full mitogenome sequences of 178 autochthonous Basque individuals that were carefully selected based on their familial descent and discuss the observed phylogenetic signals in the light of earlier published findings. We confirm the presence of Basque-specific mtDNA lineages and extend the knowledge of these lineages by providing data on their distribution in comparison to other Basque and non-Basque populations. This dataset improves our understanding of the Basque mtDNA phylogeny and serves as a high-quality dataset that is provided via EMPOP for forensic genetic purposes.
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Affiliation(s)
- Óscar García
- Forensic Science Unit, Forensic Genetics Section, Basque Country Police, Erandio (Bizkaia), Spain.
| | - Santos Alonso
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country, Spain.
| | - Nicole Huber
- Institute of Legal Medicine, Medical University of Innsbruck, Innsbruck, Austria.
| | - Martin Bodner
- Institute of Legal Medicine, Medical University of Innsbruck, Innsbruck, Austria.
| | - Walther Parson
- Institute of Legal Medicine, Medical University of Innsbruck, Innsbruck, Austria; Forensic Science Program, The Pennsylvania State University, University Park, Pennsylvania, USA.
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7
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Pimenta J, Lopes AM, Carracedo A, Arenas M, Amorim A, Comas D. Spatially explicit analysis reveals complex human genetic gradients in the Iberian Peninsula. Sci Rep 2019; 9:7825. [PMID: 31127131 PMCID: PMC6534591 DOI: 10.1038/s41598-019-44121-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 05/09/2019] [Indexed: 12/17/2022] Open
Abstract
The Iberian Peninsula is a well-delimited geographic region with a rich and complex human history. However, the causes of its genetic structure and past migratory dynamics are not yet fully understood. In order to shed light on them, here we evaluated the gene flow and genetic structure throughout the Iberian Peninsula with spatially explicit modelling applied to a georeferenced genetic dataset composed of genome-wide SNPs from 746 individuals belonging to 17 different regions of the Peninsula. We found contrasting patterns of genetic structure throughout Iberia. In particular, we identified strong patterns of genetic differentiation caused by relevant barriers to gene flow in northern regions and, on the other hand, a large genetic similarity in central and southern regions. In addition, our results showed a preferential north to south migratory dynamics and suggest a sex-biased dispersal in Mediterranean and southern regions. The estimated genetic patterns did not fit with the geographical relief of the Iberian landscape and they rather seem to follow political and linguistic territorial boundaries.
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Affiliation(s)
- João Pimenta
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto, Porto, Portugal
- Institute of Evolutionary Biology (CSIC-UPF). Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Spain
- Faculty of Sciences, University of Porto, Porto, Portugal
- Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, Vairão, Portugal
| | - Alexandra M Lopes
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto, Porto, Portugal
| | - Angel Carracedo
- Instituto de Ciencias Forenses, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- Grupo de Medicina Xenómica, CIBERER, Santiago de Compostela, Spain
| | - Miguel Arenas
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto, Porto, Portugal
- Department of Biochemistry, Genetics and Immunology, University of Vigo, Vigo, Spain
- Biomedical Research Center (CINBIO), University of Vigo, 36310, Vigo, Spain
| | - António Amorim
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto, Porto, Portugal
- Faculty of Sciences, University of Porto, Porto, Portugal
| | - David Comas
- Institute of Evolutionary Biology (CSIC-UPF). Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Spain.
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8
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Hernández CL, Dugoujon JM, Sánchez-Martínez LJ, Cuesta P, Novelletto A, Calderón R. Paternal lineages in southern Iberia provide time frames for gene flow from mainland Europe and the Mediterranean world. Ann Hum Biol 2019; 46:63-76. [PMID: 30822152 DOI: 10.1080/03014460.2019.1587507] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND The geography of southern Iberia and an abundant archaeological record of human occupation are ideal conditions for a full understanding of scenarios of genetic history in the area. Recent advances in the phylogeography of Y-chromosome lineages offer the opportunity to set upper bounds for the appearance of different genetic components. AIM To provide a global knowledge on the Y haplogroups observed in Andalusia with their Y microsatellite variation. Preferential attention is given to the vehement debate about the age, origin and expansion of R1b-M269 clade and sub-lineages. SUBJECT AND METHODS Four hundred and fourteen male DNA samples from western and eastern autochthonous Andalusians were genotyped for a set of Y-SNPs and Y-STRs. Gene diversity, potential population genetic structures and coalescent times were assessed. RESULTS Most of the analysed samples belong to the European haplogroup R1b1a1a2-M269, whereas haplogroups E, J, I, G and T show lower frequencies. A phylogenetic dissection of the R1b-M269 was performed and younger time frames than those previously reported in the literature were obtained for its sub-lineages. CONCLUSION The particular Andalusian R1b-M269 assemblage confirms the shallow topology of the clade. Moreover, the sharing of lineages with the rest of Europe indicates the impact in Iberia of an amount of pre-existing diversity, with the possible exception of R1b-DF27. Lineages such as J2-M172 and G-M201 highlight the importance of maritime travels of early farmers who reached the Iberian Peninsula.
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Affiliation(s)
- Candela L Hernández
- a Departamento de Biodiversidad, Ecología y Evolución, Facultad de Biología , Universidad Complutense , Madrid , Spain
| | - Jean-Michel Dugoujon
- b CNRS UMR 5288 Laboratoire d'Anthropologie Moléculaire et d'Imagerie de Synthèse (AMIS) , Université Paul Sabatier Toulouse III , Toulouse , France
| | - Luis J Sánchez-Martínez
- a Departamento de Biodiversidad, Ecología y Evolución, Facultad de Biología , Universidad Complutense , Madrid , Spain
| | - Pedro Cuesta
- c Centro de Proceso de Datos , Universidad Complutense , Madrid , Spain
| | | | - Rosario Calderón
- a Departamento de Biodiversidad, Ecología y Evolución, Facultad de Biología , Universidad Complutense , Madrid , Spain
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9
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Whole Y-chromosome sequences reveal an extremely recent origin of the most common North African paternal lineage E-M183 (M81). Sci Rep 2017; 7:15941. [PMID: 29162904 PMCID: PMC5698413 DOI: 10.1038/s41598-017-16271-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 11/09/2017] [Indexed: 12/30/2022] Open
Abstract
E-M183 (E-M81) is the most frequent paternal lineage in North Africa and thus it must be considered to explore past historical and demographical processes. Here, by using whole Y chromosome sequences from 32 North African individuals, we have identified five new branches within E-M183. The validation of these variants in more than 200 North African samples, from which we also have information of 13 Y-STRs, has revealed a strong resemblance among E-M183 Y-STR haplotypes that pointed to a rapid expansion of this haplogroup. Moreover, for the first time, by using both SNP and STR data, we have provided updated estimates of the times-to-the-most-recent-common-ancestor (TMRCA) for E-M183, which evidenced an extremely recent origin of this haplogroup (2,000-3,000 ya). Our results also showed a lack of population structure within the E-M183 branch, which could be explained by the recent and rapid expansion of this haplogroup. In spite of a reduction in STR heterozygosity towards the West, which would point to an origin in the Near East, ancient DNA evidence together with our TMRCA estimates point to a local origin of E-M183 in NW Africa.
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10
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The maternal genetic make-up of the Iberian Peninsula between the Neolithic and the Early Bronze Age. Sci Rep 2017; 7:15644. [PMID: 29142317 PMCID: PMC5688114 DOI: 10.1038/s41598-017-15480-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 10/27/2017] [Indexed: 01/01/2023] Open
Abstract
Agriculture first reached the Iberian Peninsula around 5700 BCE. However, little is known about the genetic structure and changes of prehistoric populations in different geographic areas of Iberia. In our study, we focus on the maternal genetic makeup of the Neolithic (~ 5500–3000 BCE), Chalcolithic (~ 3000–2200 BCE) and Early Bronze Age (~ 2200–1500 BCE). We report ancient mitochondrial DNA results of 213 individuals (151 HVS-I sequences) from the northeast, central, southeast and southwest regions and thus on the largest archaeogenetic dataset from the Peninsula to date. Similar to other parts of Europe, we observe a discontinuity between hunter-gatherers and the first farmers of the Neolithic. During the subsequent periods, we detect regional continuity of Early Neolithic lineages across Iberia, however the genetic contribution of hunter-gatherers is generally higher than in other parts of Europe and varies regionally. In contrast to ancient DNA findings from Central Europe, we do not observe a major turnover in the mtDNA record of the Iberian Late Chalcolithic and Early Bronze Age, suggesting that the population history of the Iberian Peninsula is distinct in character.
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11
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Solé-Morata N, Villaescusa P, García-Fernández C, Font-Porterias N, Illescas MJ, Valverde L, Tassi F, Ghirotto S, Férec C, Rouault K, Jiménez-Moreno S, Martínez-Jarreta B, Pinheiro MF, Zarrabeitia MT, Carracedo Á, de Pancorbo MM, Calafell F. Analysis of the R1b-DF27 haplogroup shows that a large fraction of Iberian Y-chromosome lineages originated recently in situ. Sci Rep 2017; 7:7341. [PMID: 28779148 PMCID: PMC5544771 DOI: 10.1038/s41598-017-07710-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 06/28/2017] [Indexed: 11/28/2022] Open
Abstract
Haplogroup R1b-M269 comprises most Western European Y chromosomes; of its main branches, R1b-DF27 is by far the least known, and it appears to be highly prevalent only in Iberia. We have genotyped 1072 R1b-DF27 chromosomes for six additional SNPs and 17 Y-STRs in population samples from Spain, Portugal and France in order to further characterize this lineage and, in particular, to ascertain the time and place where it originated, as well as its subsequent dynamics. We found that R1b-DF27 is present in frequencies ~40% in Iberian populations and up to 70% in Basques, but it drops quickly to 6–20% in France. Overall, the age of R1b-DF27 is estimated at ~4,200 years ago, at the transition between the Neolithic and the Bronze Age, when the Y chromosome landscape of W Europe was thoroughly remodeled. In spite of its high frequency in Basques, Y-STR internal diversity of R1b-DF27 is lower there, and results in more recent age estimates; NE Iberia is the most likely place of origin of DF27. Subhaplogroup frequencies within R1b-DF27 are geographically structured, and show domains that are reminiscent of the pre-Roman Celtic/Iberian division, or of the medieval Christian kingdoms.
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Affiliation(s)
- Neus Solé-Morata
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Catalonia, Spain
| | - Patricia Villaescusa
- BIOMICs Research Group, Lascaray Research Center, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain
| | - Carla García-Fernández
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Catalonia, Spain
| | - Neus Font-Porterias
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Catalonia, Spain
| | - María José Illescas
- BIOMICs Research Group, Lascaray Research Center, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain
| | - Laura Valverde
- BIOMICs Research Group, Lascaray Research Center, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain
| | - Francesca Tassi
- Dipartimento di Scienze della Vita e Biotecnologie, Università di Ferrara, Ferrara, Italy
| | - Silvia Ghirotto
- Dipartimento di Scienze della Vita e Biotecnologie, Università di Ferrara, Ferrara, Italy
| | - Claude Férec
- Inserm, UMR 1078, Brest, France.,Laboratoire de Génétique Moléculaire, CHRU Brest, Hôpital Morvan, Brest, France.,Université de Bretagne Occidentale, Brest, France.,Etablissement Français du Sang-Bretagne, Brest, France
| | - Karen Rouault
- Inserm, UMR 1078, Brest, France.,Laboratoire de Génétique Moléculaire, CHRU Brest, Hôpital Morvan, Brest, France
| | - Susana Jiménez-Moreno
- Forensic and Legal Medicine Area, Department of Pathology and Surgery, University Miguel Hernández, Elche, Spain
| | | | - Maria Fátima Pinheiro
- Forensic Genetics Department, National Institute of Legal Medicine and Forensic Sciences, Porto, Portugal
| | | | - Ángel Carracedo
- Genomic Medicine Group, CIBERER- University of Santiago de Compostela, Galician Foundation of Genomic Medicine (SERGAS), Santiago de Compostela, Spain.,Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Marian M de Pancorbo
- BIOMICs Research Group, Lascaray Research Center, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, Spain
| | - Francesc Calafell
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Catalonia, Spain.
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12
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Bauduer F. C282Y/H63D hemochromatosis mutations and microevolution: Speculations concerning the Basque population. HOMO-JOURNAL OF COMPARATIVE HUMAN BIOLOGY 2016; 68:38-41. [PMID: 28034447 DOI: 10.1016/j.jchb.2016.12.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 12/08/2016] [Indexed: 01/01/2023]
Abstract
The Basques live at the Western extremity of the Pyrenees. According to linguistic and genetic data they could be considered as one of the most ancient European populations. Numerous studies have evidenced particular patterns in the frequency of several genetic polymorphisms in this relatively unmixed human group. We discuss herein the puzzling distribution of the two major hemochromatosis HFE mutations associated with hereditary hemochromatosis. Thus, one can observe a low frequency of C282Y and, in contrast, one of the highest European frequencies of H63D. Genetic drift (enhanced by the long history and the small size of this population), long persistence of Paleolithic iron-rich diet, lower exposure to major infectious threats and limited mixing with both Celts and Vikings (who demonstrate the highest prevalence of C282Y) could be the underlying factors explaining these particular genetic features. Historical and environmental data represent key elements for understanding the role of the different evolutionary forces which shape the genetic profile of human populations.
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Affiliation(s)
- F Bauduer
- UMR 5199 PACEA, University of Bordeaux, Pessac, France; Department of Hematology, Centre Hospitalier de la Côte Basque, Bayonne, France.
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13
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Figueredo AJ, Cabeza de Baca T, Fernandes HBF, Black CJ, Peñaherrera M, Hertler S, García RA, Meisenberg G, Woodley of Menie MA. A Sequential Canonical Cascade Model of Social Biogeography: Plants, Parasites, and People. EVOLUTIONARY PSYCHOLOGICAL SCIENCE 2016. [DOI: 10.1007/s40806-016-0073-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Alt KW, Zesch S, Garrido-Pena R, Knipper C, Szécsényi-Nagy A, Roth C, Tejedor-Rodríguez C, Held P, García-Martínez-de-Lagrán Í, Navitainuck D, Arcusa Magallón H, Rojo-Guerra MA. A Community in Life and Death: The Late Neolithic Megalithic Tomb at Alto de Reinoso (Burgos, Spain). PLoS One 2016; 11:e0146176. [PMID: 26789731 PMCID: PMC4720281 DOI: 10.1371/journal.pone.0146176] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 12/13/2015] [Indexed: 11/19/2022] Open
Abstract
The analysis of the human remains from the megalithic tomb at Alto de Reinoso represents the widest integrative study of a Neolithic collective burial in Spain. Combining archaeology, osteology, molecular genetics and stable isotope analysis (87Sr/86Sr, δ15N, δ13C) it provides a wealth of information on the minimum number of individuals, age, sex, body height, pathologies, mitochondrial DNA profiles, kinship relations, mobility, and diet. The grave was in use for approximately one hundred years around 3700 cal BC, thus dating from the Late Neolithic of the Iberian chronology. At the bottom of the collective tomb, six complete and six partial skeletons lay in anatomically correct positions. Above them, further bodies represented a subsequent and different use of the tomb, with almost all of the skeletons exhibiting signs of manipulation such as missing skeletal parts, especially skulls. The megalithic monument comprised at least 47 individuals, including males, females, and subadults, although children aged 0-6 years were underrepresented. The skeletal remains exhibited a moderate number of pathologies, such as degenerative joint diseases, healed fractures, cranial trauma, and a low intensity of caries. The mitochondrial DNA profiles revealed a pattern pointing to a closely related local community with matrilineal kinship patterns. In some cases adjacent individuals in the bottom layer showed familial relationships. According to their strontium isotope ratios, only a few individuals were likely to have spent their early childhood in a different geological environment, whilst the majority of individuals grew up locally. Carbon and nitrogen isotope analysis, which was undertaken to reconstruct the dietary habits, indicated that this was a homogeneous group with egalitarian access to food. Cereals and small ruminants were the principal sources of nutrition. These data fit in well with a lifestyle typical of sedentary farming populations in the Spanish Meseta during this period of the Neolithic.
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Affiliation(s)
- Kurt W. Alt
- Danube Private University, Krems, Austria
- Institute for Prehistory and Archaeological Science and Hightech Research Center, Basel University, Basel, Switzerland
- State Office for Heritage Management and Archaeology Saxony-Anhalt and State Museum of Prehistory, Halle, Germany
- * E-mail:
| | - Stephanie Zesch
- German Mummy Project, Reiss-Engelhorn-Museen, Mannheim, Germany
| | - Rafael Garrido-Pena
- Department of Prehistory and Archaeology, Faculty of Philosophy and Letters, Autonomous University of Madrid, Madrid, Spain
| | - Corina Knipper
- Curt Engelhorn Centre Archaeometry gGmbH, Mannheim, Germany
| | - Anna Szécsényi-Nagy
- Laboratory of Archaeogenetics, Institute of Archaeology, Research Centre for the Humanities, Hungarian Academy of Sciences, Budapest, Hungary
| | - Christina Roth
- Institute of Anthropology, Mainz University, Mainz, Germany
| | | | - Petra Held
- Department of Applied and Analytical Paleontology, Mainz University, Mainz, Germany
| | - Íñigo García-Martínez-de-Lagrán
- Department of Prehistory, University of the Basque Government, Vitoria, Spain
- Laboratoire TRACES UMR5608, Université de Toulouse, Toulouse, France
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15
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Different Evolutionary History for Basque Diaspora Populations in USA and Argentina Unveiled by Mitochondrial DNA Analysis. PLoS One 2015; 10:e0144919. [PMID: 26659590 PMCID: PMC4679185 DOI: 10.1371/journal.pone.0144919] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 11/25/2015] [Indexed: 11/23/2022] Open
Abstract
The Basque Diaspora in Western USA and Argentina represents two populations which have maintained strong Basque cultural and social roots in a completely different geographic context. Hence, they provide an exceptional opportunity to study the maternal genetic legacy from the ancestral Basque population and assess the degree of genetic introgression from the host populations in two of the largest Basque communities outside the Basque Country. For this purpose, we analyzed the complete mitochondrial DNA control region of Basque descendants living in Western USA (n = 175) and in Argentina (n = 194). The Diaspora populations studied here displayed a genetic diversity in their European maternal input which was similar to that of the Basque source populations, indicating that not important founder effects would have occurred. Actually, the genetic legacy of the Basque population still prevailed in their present-day maternal pools, by means of a haplogroup distribution similar to the source population characterized by the presence of autochthonous Basque lineages, such as U5b1f1a and J1c5c1. However, introgression of non-Basque lineages, mostly Native American, has been observed in the Diaspora populations, particularly in Argentina, where the quick assimilation of the newcomers would have favored a wider admixture with host populations. In contrast, a longer isolation of the Diaspora groups in USA, because of language and cultural differences, would have limited the introgression of local lineages. This study reveals important differences in the maternal evolutionary histories of these Basque Diaspora populations, which have to be taken into consideration in forensic and medical genetic studies.
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Bekada A, Arauna LR, Deba T, Calafell F, Benhamamouch S, Comas D. Genetic Heterogeneity in Algerian Human Populations. PLoS One 2015; 10:e0138453. [PMID: 26402429 PMCID: PMC4581715 DOI: 10.1371/journal.pone.0138453] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 08/31/2015] [Indexed: 11/18/2022] Open
Abstract
The demographic history of human populations in North Africa has been characterized by complex processes of admixture and isolation that have modeled its current gene pool. Diverse genetic ancestral components with different origins (autochthonous, European, Middle Eastern, and sub-Saharan) and genetic heterogeneity in the region have been described. In this complex genetic landscape, Algeria, the largest country in Africa, has been poorly covered, with most of the studies using a single Algerian sample. In order to evaluate the genetic heterogeneity of Algeria, Y-chromosome, mtDNA and autosomal genome-wide makers have been analyzed in several Berber- and Arab-speaking groups. Our results show that the genetic heterogeneity found in Algeria is not correlated with geography or linguistics, challenging the idea of Berber groups being genetically isolated and Arab groups open to gene flow. In addition, we have found that external sources of gene flow into North Africa have been carried more often by females than males, while the North African autochthonous component is more frequent in paternally transmitted genome regions. Our results highlight the different demographic history revealed by different markers and urge to be cautious when deriving general conclusions from partial genomic information or from single samples as representatives of the total population of a region.
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Affiliation(s)
- Asmahan Bekada
- Département de Biotechnologie, Faculté des Sciences de la Nature et de la Vie, Université Oran 1 (Ahmad Ben Bella), Oran, Algeria
| | - Lara R. Arauna
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Doctor Aiguader 88, 08003 Barcelona, Spain
| | - Tahria Deba
- Centre de Transfusion Sanguine- Centre Hospitalo-Universitaire d’Oran (CTS-CHUO), Oran, Algeria
| | - Francesc Calafell
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Doctor Aiguader 88, 08003 Barcelona, Spain
| | - Soraya Benhamamouch
- Département de Biotechnologie, Faculté des Sciences de la Nature et de la Vie, Université Oran 1 (Ahmad Ben Bella), Oran, Algeria
| | - David Comas
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Doctor Aiguader 88, 08003 Barcelona, Spain
- * E-mail:
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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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Longobardi G, Ghirotto S, Guardiano C, Tassi F, Benazzo A, Ceolin A, Barbujani G. Across language families: Genome diversity mirrors linguistic variation within Europe. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2015; 157:630-40. [PMID: 26059462 PMCID: PMC5095809 DOI: 10.1002/ajpa.22758] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 04/02/2015] [Accepted: 04/14/2015] [Indexed: 01/23/2023]
Abstract
Objectives: The notion that patterns of linguistic and biological variation may cast light on each other and on population histories dates back to Darwin's times; yet, turning this intuition into a proper research program has met with serious methodological difficulties, especially affecting language comparisons. This article takes advantage of two new tools of comparative linguistics: a refined list of Indo‐European cognate words, and a novel method of language comparison estimating linguistic diversity from a universal inventory of grammatical polymorphisms, and hence enabling comparison even across different families. We corroborated the method and used it to compare patterns of linguistic and genomic variation in Europe. Materials and Methods: Two sets of linguistic distances, lexical and syntactic, were inferred from these data and compared with measures of geographic and genomic distance through a series of matrix correlation tests. Linguistic and genomic trees were also estimated and compared. A method (Treemix) was used to infer migration episodes after the main population splits. Results: We observed significant correlations between genomic and linguistic diversity, the latter inferred from data on both Indo‐European and non‐Indo‐European languages. Contrary to previous observations, on the European scale, language proved a better predictor of genomic differences than geography. Inferred episodes of genetic admixture following the main population splits found convincing correlates also in the linguistic realm. Discussion: These results pave the ground for previously unfeasible cross‐disciplinary analyses at the worldwide scale, encompassing populations of distant language families. Am J Phys Anthropol 157:630–640, 2015. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Giuseppe Longobardi
- Department of Language and Linguistic Science, University of York, York, UK.,Department of Humanities, University of Trieste, Trieste, Italy
| | - Silvia Ghirotto
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Cristina Guardiano
- Department of Communication and Economics, University of Modena-Reggio Emilia, Modena, Italy
| | - Francesca Tassi
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Andrea Benazzo
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Andrea Ceolin
- Department of Language and Linguistic Science, University of York, York, UK
| | - Guido Barbujani
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
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Massó JFM, Zarranz JJ, Otaegui D, López de Munain A. Neurogenetic Disorders in the Basque Population. Ann Hum Genet 2014; 79:57-75. [DOI: 10.1111/ahg.12088] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 09/11/2014] [Indexed: 12/12/2022]
Affiliation(s)
- José Félix Martí Massó
- Department of Neurology at Hospital Universitario Donostia (San Sebastián, Guipúzcoa); Basque Health Service (Osakidetza); Basque Country Spain
- Department of Neurosciences; University of Basque Country (UPV-EHU)
- Centre for Networked Biomedical Research on Neurodegenerative Diseases (CIBERNED); Carlos III Health Institute, Ministry of Economy and Competitiveness; Spain
- BioDonostia Institute, San Sebastián, Guipúzcoa
- JAKIUNDE, Academia de las Ciencias, de las Artes y de las Letras
| | - Juan José Zarranz
- Department of Neurology at Hospital Universitario Cruces (Baracaldo, Vizcaya); Basque Health Service (Osakidetza); Basque Country Spain
- Department of Neurosciences; University of Basque Country (UPV-EHU)
- BioCruces Institute, Baracaldo; Vizcaya
- JAKIUNDE, Academia de las Ciencias, de las Artes y de las Letras
| | | | - Adolfo López de Munain
- Department of Neurology at Hospital Universitario Donostia (San Sebastián, Guipúzcoa); Basque Health Service (Osakidetza); Basque Country Spain
- Department of Neurosciences; University of Basque Country (UPV-EHU)
- Centre for Networked Biomedical Research on Neurodegenerative Diseases (CIBERNED); Carlos III Health Institute, Ministry of Economy and Competitiveness; Spain
- BioDonostia Institute, San Sebastián, Guipúzcoa
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Traces of medieval migrations in a socially stratified population from Northern Italy. Evidence from uniparental markers and deep-rooted pedigrees. Heredity (Edinb) 2014; 114:155-62. [PMID: 25204305 DOI: 10.1038/hdy.2014.77] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 06/25/2014] [Accepted: 07/23/2014] [Indexed: 02/03/2023] Open
Abstract
Social and cultural factors had a critical role in determining the genetic structure of Europe. Therefore, socially stratified populations may help to focus on specific episodes of European demographic history. In this study, we use uniparental markers to analyse the genetic structure of Partecipanza in San Giovanni in Persiceto (Northern Italy), a peculiar institution whose origins date back to the Middle Ages and whose members form the patrilineal descent of a group of founder families. From a maternal point of view (mtDNA), Partecipanza is genetically homogeneous with the rest of the population. However, we observed a significant differentiation for Y-chromosomes. In addition, by comparing 17 Y-STR profiles with deep-rooted paternal pedigrees, we estimated a Y-STR mutation rate equal to 3.90 * 10(-3) mutations per STR per generation and an average generation duration time of 33.38 years. When we used these values for tentative dating, we estimated 1300-600 years ago for the origins of the Partecipanza. These results, together with a peculiar Y-chromosomal composition and historical evidence, suggest that Germanic populations (Lombards in particular) settled in the area during the Migration Period (400-800 AD, approximately) and may have had an important role in the foundation of this community.
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Hervella M, Izagirre N, Alonso S, Ioana M, Netea MG, de-la-Rua C. The Carpathian range represents a weak genetic barrier in South-East Europe. BMC Genet 2014; 15:56. [PMID: 24885208 PMCID: PMC4050216 DOI: 10.1186/1471-2156-15-56] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Accepted: 05/07/2014] [Indexed: 11/15/2022] Open
Abstract
Background In the present study we have assessed whether the Carpathian Mountains represent a genetic barrier in East Europe. Therefore, we have analyzed the mtDNA of 128 native individuals of Romania: 62 of them from the North of Romania, and 66 from South Romania. Results We have analyzed their mtDNA variability in the context of other European and Near Eastern populations through multivariate analyses. The results show that regarding the mtDNA haplogroup and haplotype distributions the Romanian groups living outside the Carpathian range (South Romania) displayed some degree of genetic differentiation compared to those living within the Carpahian range (North Romania). Conclusion The main differentiation between the mtDNA variability of the groups from North and South Romania can be attributed to the demographic movements from East to West (prehistoric or historic) that differently affected in these regions, suggesting that the Carpathian mountain range represents a weak genetic barrier in South-East Europe.
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Affiliation(s)
| | | | | | | | | | - Concepción de-la-Rua
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country, Barrio Sarriena s/n 48940, Leioa, Bizkaia, Spain.
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Pardiñas AF, Roca A, García-Vazquez E, López B. Evaluation of large-scale genetic structure in complex demographic and historical scenarios: the mitochondrial DNA and Y-chromosome pools of the Iberian Atlantic façade. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2014; 153:617-26. [PMID: 24375152 DOI: 10.1002/ajpa.22461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 12/12/2013] [Indexed: 11/11/2022]
Abstract
Genetic structural patterns of human populations are usually a combination of long-term evolutionary forces and short-term social, cultural, and demographic processes. Recently, using mitochondrial DNA and Y-chromosome loci, various studies in northern Spain have found evidence that the geographical distribution of Iron Age tribal peoples might have influenced current patterns of genetic structuring in several autochthonous populations. Using the wealth of data that are currently available from the whole territory of the Iberian Peninsula, we have evaluated its genetic structuring in the spatial scale of the Atlantic façade. Hierarchical tree modeling procedures, combined with a classic analysis of molecular variance (AMOVA), were used to model known sociocultural divisions from the third century BCE to the eighth century CE, contrasting them with uniparental marker data. Our results show that, while mountainous and abrupt areas of the Iberian North bear the signals of long-term isolation in their maternal and paternal gene pools, the makeup of the Atlantic façade as a whole can be related to tribal population groups that predate the Roman conquest of the Peninsula. The maintenance through time of such a structure can be related to the numerous geographic barriers of the Iberian mainland, which have historically conditioned its settlement patterns and the occurrence of genetic drift processes.
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Affiliation(s)
- Antonio F Pardiñas
- Departamento de Biología de Organismos y Sistemas, Universidad de Oviedo, Asturias, Spain
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Santos C, Fregel R, Cabrera VM, Álvarez L, Larruga JM, Ramos A, López MA, Pilar Aluja M, González AM. Mitochondrial DNA and Y-chromosome structure at the mediterranean and atlantic façades of the iberian peninsula. Am J Hum Biol 2013; 26:130-41. [DOI: 10.1002/ajhb.22497] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Revised: 10/31/2013] [Accepted: 12/07/2013] [Indexed: 01/24/2023] Open
Affiliation(s)
- Cristina Santos
- Unitat Antropologia Biològica; Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona; 08193 Bellaterra Barcelona Spain
| | - Rosa Fregel
- Department of Genetics; University of La Laguna; 38271 Tenerife Canary Islands Spain
| | - Vicente M. Cabrera
- Department of Genetics; University of La Laguna; 38271 Tenerife Canary Islands Spain
| | - Luis Álvarez
- Unitat Antropologia Biològica; Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona; 08193 Bellaterra Barcelona Spain
- IPATIMUP; Institute of Molecular Pathology and Immunology of the University of Porto; 4200-465 Porto Portugal
| | - Jose M. Larruga
- Department of Genetics; University of La Laguna; 38271 Tenerife Canary Islands Spain
| | - Amanda Ramos
- Unitat Antropologia Biològica; Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona; 08193 Bellaterra Barcelona Spain
- Centre of Research in Natural Resources (CIRN), Department of Biology; University of the Azores; 9500-321 Ponta Delgada Portugal
- Molecular and Cellular Biology Institute (IBMC); University of Porto; 4150-180 Porto Portugal
| | - Miguel A. López
- Clinical Management and Biotechnology Unit; Torre Cárdena Hospital; 04008 Almería Spain
| | - María Pilar Aluja
- Unitat Antropologia Biològica; Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona; 08193 Bellaterra Barcelona Spain
| | - Ana M. González
- Department of Genetics; University of La Laguna; 38271 Tenerife Canary Islands Spain
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Gene flow from North Africa contributes to differential human genetic diversity in southern Europe. Proc Natl Acad Sci U S A 2013; 110:11791-6. [PMID: 23733930 DOI: 10.1073/pnas.1306223110] [Citation(s) in RCA: 139] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Human genetic diversity in southern Europe is higher than in other regions of the continent. This difference has been attributed to postglacial expansions, the demic diffusion of agriculture from the Near East, and gene flow from Africa. Using SNP data from 2,099 individuals in 43 populations, we show that estimates of recent shared ancestry between Europe and Africa are substantially increased when gene flow from North Africans, rather than Sub-Saharan Africans, is considered. The gradient of North African ancestry accounts for previous observations of low levels of sharing with Sub-Saharan Africa and is independent of recent gene flow from the Near East. The source of genetic diversity in southern Europe has important biomedical implications; we find that most disease risk alleles from genome-wide association studies follow expected patterns of divergence between Europe and North Africa, with the principal exception of multiple sclerosis.
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Boattini A, Martinez-Cruz B, Sarno S, Harmant C, Useli A, Sanz P, Yang-Yao D, Manry J, Ciani G, Luiselli D, Quintana-Murci L, Comas D, Pettener D. Uniparental markers in Italy reveal a sex-biased genetic structure and different historical strata. PLoS One 2013; 8:e65441. [PMID: 23734255 PMCID: PMC3666984 DOI: 10.1371/journal.pone.0065441] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Accepted: 04/24/2013] [Indexed: 11/18/2022] Open
Abstract
Located in the center of the Mediterranean landscape and with an extensive coastal line, the territory of what is today Italy has played an important role in the history of human settlements and movements of Southern Europe and the Mediterranean Basin. Populated since Paleolithic times, the complexity of human movements during the Neolithic, the Metal Ages and the most recent history of the two last millennia (involving the overlapping of different cultural and demic strata) has shaped the pattern of the modern Italian genetic structure. With the aim of disentangling this pattern and understanding which processes more importantly shaped the distribution of diversity, we have analyzed the uniparentally-inherited markers in ∼900 individuals from an extensive sampling across the Italian peninsula, Sardinia and Sicily. Spatial PCAs and DAPCs revealed a sex-biased pattern indicating different demographic histories for males and females. Besides the genetic outlier position of Sardinians, a North West–South East Y-chromosome structure is found in continental Italy. Such structure is in agreement with recent archeological syntheses indicating two independent and parallel processes of Neolithisation. In addition, date estimates pinpoint the importance of the cultural and demographic events during the late Neolithic and Metal Ages. On the other hand, mitochondrial diversity is distributed more homogeneously in agreement with older population events that might be related to the presence of an Italian Refugium during the last glacial period in Europe.
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Affiliation(s)
- Alessio Boattini
- Laboratorio di Antropologia Molecolare, Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna, Bologna, Italy
| | - Begoña Martinez-Cruz
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències de la Salut i de la Vida, Universitat Pompeu Fabra, Barcelona, Spain
| | - Stefania Sarno
- Laboratorio di Antropologia Molecolare, Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna, Bologna, Italy
| | - Christine Harmant
- Institut Pasteur, Human Evolutionary Genetics Unit, Department of Genomes and Genetics, Paris, France
- Centre National de la Recherche Scientifique, Paris, France
| | - Antonella Useli
- Dipartimento di Scienze della Natura e del Territorio, Università di Sassari, Sassari, Italy
| | - Paula Sanz
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències de la Salut i de la Vida, Universitat Pompeu Fabra, Barcelona, Spain
| | - Daniele Yang-Yao
- Laboratorio di Antropologia Molecolare, Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna, Bologna, Italy
| | - Jeremy Manry
- Institut Pasteur, Human Evolutionary Genetics Unit, Department of Genomes and Genetics, Paris, France
- Centre National de la Recherche Scientifique, Paris, France
| | - Graziella Ciani
- Laboratorio di Antropologia Molecolare, Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna, Bologna, Italy
| | - Donata Luiselli
- Laboratorio di Antropologia Molecolare, Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna, Bologna, Italy
| | - Lluis Quintana-Murci
- Institut Pasteur, Human Evolutionary Genetics Unit, Department of Genomes and Genetics, Paris, France
- Centre National de la Recherche Scientifique, Paris, France
| | - David Comas
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències de la Salut i de la Vida, Universitat Pompeu Fabra, Barcelona, Spain
- * E-mail: (DC); (DP)
| | - Davide Pettener
- Laboratorio di Antropologia Molecolare, Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna, Bologna, Italy
- * E-mail: (DC); (DP)
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Pardiñas AF, Roca A, García-Vazquez E, López B. Assessing the genetic influence of ancient sociopolitical structure: micro-differentiation patterns in the population of Asturias (Northern Spain). PLoS One 2012; 7:e50206. [PMID: 23209673 PMCID: PMC3507697 DOI: 10.1371/journal.pone.0050206] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Accepted: 10/16/2012] [Indexed: 11/18/2022] Open
Abstract
The human populations of the Iberian Peninsula are the varied result of a complex mixture of cultures throughout history, and are separated by clear social, cultural, linguistic or geographic barriers. The stronger genetic differences between closely related populations occur in the northern third of Spain, a phenomenon commonly known as "micro-differentiation". It has been argued and discussed how this form of genetic structuring can be related to both the rugged landscape and the ancient societies of Northern Iberia, but this is difficult to test in most regions due to the intense human mobility of previous centuries. Nevertheless, the Spanish autonomous community of Asturias shows a complex history which hints of a certain isolation of its population. This, joined together with a difficult terrain full of deep valleys and steep mountains, makes it suitable for performing a study of genetic structure, based on mitochondrial DNA and Y-Chromosome markers. Our analyses do not only show that there are micro-differentiation patterns inside the Asturian territory, but that these patterns are strikingly similar between both uniparental markers. The inference of barriers to gene flow also indicates that Asturian populations from the coastal north and the mountainous south seem to be relatively isolated from the rest of the territory. These findings are discussed in light of historic and geographic data and, coupled with previous evidence, show that the origin of the current genetic patterning might indeed lie in Roman and Pre-Roman sociopolitical divisions.
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Affiliation(s)
- Antonio F. Pardiñas
- Departamento de Biología de Organismos y Sistemas, Universidad de Oviedo, Asturias, Spain
| | - Agustín Roca
- Departamento de Biología Funcional, Universidad de Oviedo, Asturias, Spain
| | - Eva García-Vazquez
- Departamento de Biología Funcional, Universidad de Oviedo, Asturias, Spain
| | - Belén López
- Departamento de Biología de Organismos y Sistemas, Universidad de Oviedo, Asturias, Spain
- * E-mail:
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Rębała K, Martínez-Cruz B, Tönjes A, Kovacs P, Stumvoll M, Lindner I, Büttner A, Wichmann HE, Siváková D, Soták M, Quintana-Murci L, Szczerkowska Z, Comas D. Contemporary paternal genetic landscape of Polish and German populations: from early medieval Slavic expansion to post-World War II resettlements. Eur J Hum Genet 2012; 21:415-22. [PMID: 22968131 DOI: 10.1038/ejhg.2012.190] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Homogeneous Proto-Slavic genetic substrate and/or extensive mixing after World War II were suggested to explain homogeneity of contemporary Polish paternal lineages. Alternatively, Polish local populations might have displayed pre-war genetic heterogeneity owing to genetic drift and/or gene flow with neighbouring populations. Although sharp genetic discontinuity along the political border between Poland and Germany indisputably results from war-mediated resettlements and homogenisation, it remained unknown whether Y-chromosomal diversity in ethnically/linguistically defined populations was clinal or discontinuous before the war. In order to answer these questions and elucidate early Slavic migrations, 1156 individuals from several Slavic and German populations were analysed, including Polish pre-war regional populations and an autochthonous Slavic population from Germany. Y chromosomes were assigned to 39 haplogroups and genotyped for 19 STRs. Genetic distances revealed similar degree of differentiation of Slavic-speaking pre-war populations from German populations irrespective of duration and intensity of contacts with German speakers. Admixture estimates showed minor Slavic paternal ancestry (~20%) in modern eastern Germans and hardly detectable German paternal ancestry in Slavs neighbouring German populations for centuries. BATWING analysis of isolated Slavic populations revealed that their divergence was preceded by rapid demographic growth, undermining theory that Slavic expansion was primarily linguistic rather than population spread. Polish pre-war regional populations showed within-group heterogeneity and lower STR variation within R-M17 subclades compared with modern populations, which might have been homogenised by war resettlements. Our results suggest that genetic studies on early human history in the Vistula and Oder basins should rely on reconstructed pre-war rather than modern populations.
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Affiliation(s)
- Krzysztof Rębała
- Institut de Biologia Evolutiva, CSIC-UPF, Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Spain
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