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ElHefnawi M, Hegazy E, Elfiky A, Jeon Y, Jeon S, Bhak J, Mohamed Metwally F, Sugano S, Horiuchi T, Kazumi A, Blazyte A. Complete genome sequence and bioinformatics analysis of nine Egyptian females with clinical information from different geographic regions in Egypt. Gene 2020; 769:145237. [PMID: 33127537 DOI: 10.1016/j.gene.2020.145237] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 08/03/2020] [Accepted: 10/11/2020] [Indexed: 10/23/2022]
Abstract
Egyptians are at a crossroad between Africa and Eurasia, providing useful genomic resources for analyzing both genetic and environmental factors for future personalized medicine. Two personal Egyptian whole genomes have been published previously by us and here nine female whole genome sequences with clinical information have been added to expand the genomic resource of Egyptian personal genomes. Here we report the analysis of whole genomes of nine Egyptian females from different regions using Illumina short-read sequencers. At 30x sequencing coverage, we identified 12 SNPs that were shared in most of the subjects associated with obesity which are concordant with their clinical diagnosis. Also, we found mtDNA mutation A4282G is common in all the samples and this is associated with chronic progressive external ophthalmoplegia (CPEO). Haplogroup and Admixture analyses revealed that most Egyptian samples are close to the other north Mediterranean, Middle Eastern, and European, respectively, possibly reflecting the into-Africa influx of human migration. In conclusion, we present whole-genome sequences of nine Egyptian females with personal clinical information that cover the diverse regions of Egypt. Although limited in sample size, the whole genomes data provides possible geno-phenotype candidate markers that are relevant to the region's diseases.
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Affiliation(s)
- Mahmoud ElHefnawi
- School of Information Technology and Computer Science, Nile University, Giza 12588, Egypt; Informatics & Systems Department, the National Research Centre, Cairo, Egypt; Biomedical Informatics and Chemoinformatics Group, Center of Excellence for Medical Research, National Research Centre, Cairo, Egypt.
| | - Elsayed Hegazy
- School of Information Technology and Computer Science, Nile University, Giza 12588, Egypt
| | - Asmaa Elfiky
- Environmental and Occupational Medicine Department, Environmental Research Division, National Research Centre, Cairo, Egypt
| | - Yeonsu Jeon
- Korean Genomics Center (KOGIC), UNIST, Republic of Korea; Department of Biomedical Engineering, School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Sungwon Jeon
- Korean Genomics Center (KOGIC), UNIST, Republic of Korea; Department of Biomedical Engineering, School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Jong Bhak
- Korean Genomics Center (KOGIC), UNIST, Republic of Korea; Department of Biomedical Engineering, School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea; Personal Genomics Institute, Genome Research Foundation, Osong, Republic of Korea
| | - Fateheya Mohamed Metwally
- Environmental and Occupational Medicine Department, Environmental Research Division, National Research Centre, Cairo, Egypt
| | - Sumio Sugano
- The Institute of Medical Science, University of Tokyo, Japan
| | - Terumi Horiuchi
- Graduate School of Frontier Sciences, University of Tokyo, Chiba, Japan
| | - Abe Kazumi
- The Institute of Medical Science, University of Tokyo, Japan
| | - Asta Blazyte
- Korean Genomics Center (KOGIC), UNIST, Republic of Korea; Department of Biomedical Engineering, School of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
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Population genetic diversity in an Iraqi population and gene flow across the Arabian Peninsula. Sci Rep 2020; 10:15289. [PMID: 32943725 PMCID: PMC7499422 DOI: 10.1038/s41598-020-72283-1] [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: 04/27/2020] [Accepted: 08/28/2020] [Indexed: 11/30/2022] Open
Abstract
Y-STRs have emerged as important forensic and population genetic markers for human identification and population differentiation studies. Therefore, population databases for these markers have been developed for almost all major populations around the world. The Iraqi population encompasses several ethnic groups that need to be genetically characterised and evaluated for possible substructures. Previous studies on the Iraqi population based on Y-STR markers were limited by a restricted number of markers. A larger database for Iraqi Arab population needed to be developed to help study and compare the population with other Middle Eastern populations. Twenty-three Y-STR loci included in the PowerPlex Y23 (Promega, Madison, WI, USA) were typed in 254 males from the Iraqi Arab population. Global and regional Y-STR analysis demonstrated regional genetic continuity among the populations of Iraq, the Arabian Peninsula and the Middle East. The Iraqi Arab haplotypes were used to allocate samples to their most likely haplogroups using Athey’s Haplogroup Predictor tool. Prediction indicated predominance (36.6%) of haplogroup J1 in Iraqi Arabs. The migration rate between other populations and the Iraqis was inferred using coalescence theory in the Migrate-n program. Y-STR data were used to test different out-of-Africa migration models as well as more recent migrations within the Arabian Peninsula. The migration models demonstrated that gene flow to Iraq began from East Africa, with the Levantine corridor the most probable passageway out of Africa. The data presented here will enrich our understanding of genetic diversity in the region and introduce a PowerPlex Y23 database to the forensic community.
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Aljasmi FA, Vijayan R, Sudalaimuthuasari N, Souid AK, Karuvantevida N, Almaskari R, Mohammed Abdul Kader H, Kundu B, Michel Hazzouri K, Amiri KMA. Genomic Landscape of the Mitochondrial Genome in the United Arab Emirates Native Population. Genes (Basel) 2020; 11:genes11080876. [PMID: 32752197 PMCID: PMC7464197 DOI: 10.3390/genes11080876] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 07/26/2020] [Accepted: 07/28/2020] [Indexed: 11/19/2022] Open
Abstract
In order to assess the genomic landscape of the United Arab Emirates (UAE) mitogenome, we sequenced and analyzed the complete genomes of 232 Emirate females mitochondrial DNA (mtDNA) within and compared those to Africa. We investigated the prevalence of haplogroups, genetic variation, heteroplasmy, and demography among the UAE native population with diverse ethnicity and relatively high degree of consanguinity. We identified 968 mtDNA variants and high-resolution 15 haplogroups. Our results show that the UAE population received enough gene flow from Africa represented by the haplogroups L, U6, and M1, and that 16.8% of the population has an eastern provenance, depicted by the U haplogroup and the M Indian haplogroup (12%), whereas western Eurasian and Asian haplogroups (R, J, and K) represent 11 to 15%. Interestingly, we found an ancient migration present through the descendant of L (N1 and X) and other sub-haplogroups (L2a1d and L4) and (L3x1b), which is one of the oldest evolutionary histories outside of Africa. Our demographic analysis shows no population structure among populations, with low diversity and no population differentiation. In addition, we show that the transmission of mtDNA in the UAE population is under purifying selection with hints of diversifying selection on ATP8 gene. Last, our results show a population bottleneck, which coincides with the Western European contact (1400 ybp). Our study of the UAE mitogenomes suggest that several maternal lineage migratory episodes liking African–Asian corridors occurred since the first modern human emerges out of Africa.
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Affiliation(s)
- Fatma A Aljasmi
- Pediatric Department, United Arab Emirates University, Al Ain, Abu Dhabi 15551, UAE
| | - Ranjit Vijayan
- Biology Department, United Arab Emirates University, Al Ain, Abu Dhabi 15551, UAE
| | | | - Abdul-Kader Souid
- Pediatric Department, United Arab Emirates University, Al Ain, Abu Dhabi 15551, UAE
| | | | - Raja Almaskari
- Biology Department, United Arab Emirates University, Al Ain, Abu Dhabi 15551, UAE
| | | | - Biduth Kundu
- Biology Department, United Arab Emirates University, Al Ain, Abu Dhabi 15551, UAE
| | - Khaled Michel Hazzouri
- Khalifa Center for Genetic Engineering and Biotechnology, United Arab Emirates University, Al Ain, Abu Dhabi 15551, UAE
| | - Khaled M A Amiri
- Biology Department, United Arab Emirates University, Al Ain, Abu Dhabi 15551, UAE
- Khalifa Center for Genetic Engineering and Biotechnology, United Arab Emirates University, Al Ain, Abu Dhabi 15551, UAE
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Dashti M, Ateyah K, Alroughani R, Al-Temaimi R. Replication analysis of variants associated with multiple sclerosis risk. Sci Rep 2020; 10:7327. [PMID: 32355262 PMCID: PMC7193640 DOI: 10.1038/s41598-020-64432-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 04/15/2020] [Indexed: 12/30/2022] Open
Abstract
Multiple Sclerosis (MS) is a complex chronic neurodegenerative disorder resulting from an autoimmune reaction against myelin. So far, many genetic variants have been reported to associate with MS risk however their association is inconsistent across different populations. Here we investigated the association of the most consistently reported genetic MS risk variants in the Kuwaiti MS population in a case-control study designs. Of the 94 reported MS risk variants four variants showed MS risk association in Arabs exome analysis (EVI5 rs11808092 p = 0.0002; TNFRSF1A rs1800693 p = 0.00003; MTHFR rs1801131 p = 0.038; and CD58 rs1414273 p = 0.00007). Replication analysis in Kuwaiti MS cases and healthy controls confirmed EVI5 rs11808092A (OR: 1.6, 95%CI: 1.19–2.16, p = 0.002) and MTHFR rs1801131G (OR: 1.79, 95%CI: 1.3–2.36, p = 0.001) as MS risk genetic factors, while TNFRSF1A rs1800693C had a marginal MS risk association (OR: 1.36, 95%CI: 1.04–1.78, p = 0.025) in the Kuwaiti population. CD58 rs1414273 did not sustain risk association (p = 0.37). In conclusion, EVI5 rs11808092A, TNFRSF1A rs1800693C and MTHFR rs1801131G are MS risk factors in the Kuwaiti population. Further investigations into their roles in MS pathogenesis and progression are merited.
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Affiliation(s)
- Mohammad Dashti
- Genetics and Bioinformatics department, Dasman Diabetes Institute, Sharq, Kuwait City, Kuwait
| | - Khadijah Ateyah
- Undergraduate medical program, Faculty of Medicine, Kuwait University, Jabriya, Kuwait
| | | | - Rabeah Al-Temaimi
- Human Genetics Unit, Department of Pathology, Faculty of Medicine, Kuwait University, Jabriya, Kuwait.
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Eaaswarkhanth M, dos Santos ALC, Gokcumen O, Al-Mulla F, Thanaraj TA. Genome-Wide Selection Scan in an Arabian Peninsula Population Identifies a TNKS Haplotype Linked to Metabolic Traits and Hypertension. Genome Biol Evol 2020; 12:77-87. [PMID: 32068798 PMCID: PMC7093833 DOI: 10.1093/gbe/evaa033] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/13/2020] [Indexed: 12/12/2022] Open
Abstract
Despite the extreme and varying environmental conditions prevalent in the Arabian Peninsula, it has experienced several waves of human migrations following the out-of-Africa diaspora. Eventually, the inhabitants of the peninsula region adapted to the hot and dry environment. The adaptation and natural selection that shaped the extant human populations of the Arabian Peninsula region have been scarcely studied. In an attempt to explore natural selection in the region, we analyzed 662,750 variants in 583 Kuwaiti individuals. We searched for regions in the genome that display signatures of positive selection in the Kuwaiti population using an integrative approach in a conservative manner. We highlight a haplotype overlapping TNKS that showed strong signals of positive selection based on the results of the multiple selection tests conducted (integrated Haplotype Score, Cross Population Extended Haplotype Homozygosity, Population Branch Statistics, and log-likelihood ratio scores). Notably, the TNKS haplotype under selection potentially conferred a fitness advantage to the Kuwaiti ancestors for surviving in the harsh environment while posing a major health risk to present-day Kuwaitis.
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Affiliation(s)
| | - Andre Luiz Campelo dos Santos
- Department of Biological Sciences, State University of New York at Buffalo, Buffalo
- Department of Archeology, Federal University of Pernambuco, Recife, Brazil
| | - Omer Gokcumen
- Department of Biological Sciences, State University of New York at Buffalo, Buffalo
| | - Fahd Al-Mulla
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Kuwait City, Kuwait
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Zimmermann B, Sturk-Andreaggi K, Huber N, Xavier C, Saunier J, Tahir M, Chouery E, Jalkh N, Megarbane A, Bodner M, Coble M, Irwin J, Parsons T, Parson W. Mitochondrial DNA control region variation in Lebanon, Jordan, and Bahrain. Forensic Sci Int Genet 2019; 42:99-102. [DOI: 10.1016/j.fsigen.2019.06.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/06/2019] [Accepted: 06/25/2019] [Indexed: 10/26/2022]
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Vyas DN, Mulligan CJ. Analyses of Neanderthal introgression suggest that Levantine and southern Arabian populations have a shared population history. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2019; 169:227-239. [PMID: 30889271 DOI: 10.1002/ajpa.23818] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 01/11/2019] [Accepted: 02/21/2019] [Indexed: 01/31/2023]
Abstract
OBJECTIVES Modern humans are thought to have interbred with Neanderthals in the Near East soon after modern humans dispersed out of Africa. This introgression event likely took place in either the Levant or southern Arabia depending on the dispersal route out of Africa that was followed. In this study, we compare Neanderthal introgression in contemporary Levantine and southern Arabian populations to investigate Neanderthal introgression and to study Near Eastern population history. MATERIALS AND METHODS We analyzed genotyping data on >400,000 autosomal SNPs from seven Levantine and five southern Arabian populations and compared these data to those from populations from around the world including Neanderthal and Denisovan genomes. We used f4 and D statistics to estimate and compare levels of Neanderthal introgression between Levantine, southern Arabian, and comparative global populations. We also identified 1,581 putative Neanderthal-introgressed SNPs within our dataset and analyzed their allele frequencies as a means to compare introgression patterns in Levantine and southern Arabian genomes. RESULTS We find that Levantine and southern Arabian populations have similar levels of Neanderthal introgression to each other but lower levels than other non-Africans. Furthermore, we find that introgressed SNPs have very similar allele frequencies in the Levant and southern Arabia, which indicates that Neanderthal introgression is similarly distributed in Levantine and southern Arabian genomes. DISCUSSION We infer that the ancestors of contemporary Levantine and southern Arabian populations received Neanderthal introgression prior to separating from each other and that there has been extensive gene flow between these populations.
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Affiliation(s)
- Deven N Vyas
- Department of Anthropology, University of Florida, Gainesville, Florida.,Genetics Institute, University of Florida, Gainesville, Florida
| | - Connie J Mulligan
- Department of Anthropology, University of Florida, Gainesville, Florida.,Genetics Institute, University of Florida, Gainesville, Florida
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8
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Leplongeon A, Goder-Goldberger M, Pleurdeau D. International workshop on human occupations of the Nile Valley and neighboring regions between 75,000 and 15,000 years ago. Evol Anthropol 2018; 28:10-13. [PMID: 30576032 DOI: 10.1002/evan.21756] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 10/30/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Alice Leplongeon
- UMR CNRS 7194, Département Homme et Environnement, Muséum national d'Histoire naturelle - Université de Perpignan Via Domitia - Alliance Sorbonne Université, Paris, France.,Istituto di Studi Avanzati e Dipartimento di Beni Culturali, University of Bologna, Bologna, Italy
| | | | - David Pleurdeau
- UMR CNRS 7194, Département Homme et Environnement, Muséum national d'Histoire naturelle - Université de Perpignan Via Domitia - Alliance Sorbonne Université, Paris, France
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Leplongeon A. Technological variability in the Late Palaeolithic lithic industries of the Egyptian Nile Valley: The case of the Silsilian and Afian industries. PLoS One 2017; 12:e0188824. [PMID: 29281660 PMCID: PMC5744920 DOI: 10.1371/journal.pone.0188824] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 11/14/2017] [Indexed: 11/18/2022] Open
Abstract
During the Nubia Salvage Campaign and the subsequent expeditions from the 1960’s to the 1980’s, numerous sites attributed to the Late Palaeolithic (~25–15 ka) were found in the Nile Valley, particularly in Nubia and Upper Egypt. This region is one of the few to have allowed human occupations during the dry Marine Isotope Stage 2 and is therefore key to understanding how human populations adapted to environmental changes at this time. This paper focuses on two sites located in Upper Egypt, excavated by the Combined Prehistoric Expedition: E71K18, attributed to the Afian industry and E71K20, attributed to the Silsilian industry. It aims to review the geomorphological and chronological evidence of the sites, present a technological analysis of the lithic assemblages in order to provide data that can be used in detailed comparative studies, which will allow discussion of technological variability in the Late Palaeolithic of the Nile Valley and its place within the regional context. The lithic analysis relies on the chaîne opératoire concept combined with an attribute analysis to allow quantification. This study (1) casts doubts on the chronology of E71K18 and related Afian industry, which could be older or younger than previously suggested, highlights (2) distinct technological characteristics for the Afian and the Silsilian, as well as (3) similar technological characteristics which allow to group them under a same broad techno-cultural complex, distinct from those north or south of the area.
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Affiliation(s)
- Alice Leplongeon
- McDonald Institute for Archaeological Research, University of Cambridge, Cambridge, United Kingdom
- UMR CNRS 7194 HNHP, département Homme et Environnement, Muséum national d’Histoire naturelle–Université de Perpignan Via Domitia–Sorbonne Universités, Paris, France
- Institute of Archaeology, Hebrew University of Jerusalem, Jerusalem, Israel
- * E-mail:
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Genetic origin of goat populations in Oman revealed by mitochondrial DNA analysis. PLoS One 2017; 12:e0190235. [PMID: 29281717 PMCID: PMC5744987 DOI: 10.1371/journal.pone.0190235] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 12/11/2017] [Indexed: 11/19/2022] Open
Abstract
The Sultanate of Oman has a complex mosaic of livestock species and production systems, but the genetic diversity, demographic history or origins of these Omani animals has not been expensively studied. Goats might constitute one of the most abundant and important domestic livestock species since the Neolithic transition. Here, we examined the genetic diversity, origin, population structure and demographic history of Omani goats. Specifically, we analyzed a 525-bp fragment of the first hypervariable region of the mitochondrial DNA (mtDNA) control region from 69 Omani individuals and compared this fragment with 17 mtDNA sequences from Somalia and Yemen as well as 18 wild goat species and 1,198 previously published goat sequences from neighboring countries. The studied goat breeds show substantial diversity. The haplotype and nucleotide diversities of Omani goats were found equal to 0.983 ± 0.006 and 0.0284 ± 0.014, respectively. The phylogenetic analyses allowed us to classify Omani goats into three mtDNA haplogroups (A, B and G): haplogroup A was found to be predominant and widely distributed and accounted for 80% of all samples, and haplogroups B and G exhibited low frequencies. Phylogenetic comparisons with wild goats revealed that five of the native Omani goat populations originate from Capra aegagrus. Furthermore, most comparisons of pairwise population FST values within and between these five Omani goat breeds as well as between Omani goats and nine populations from nearby countries were not significant. These results suggest strong gene flow among goat populations caused by the extensive transport of goats and the frequent movements of human populations in ancient Arabia. The findings improve our understanding of the migration routes of modern goats from their region of domestication into southeastern Arabia and thereby shed light on human migratory and commercial networks during historical times.
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Vyas DN, Al‐Meeri A, Mulligan CJ. Testing support for the northern and southern dispersal routes out of Africa: an analysis of Levantine and southern Arabian populations. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2017; 164:736-749. [DOI: 10.1002/ajpa.23312] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 08/28/2017] [Accepted: 08/29/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Deven N. Vyas
- Department of AnthropologyUniversity of Florida, 1112 Turlington Hall, PO Box 117305Gainesville Florida 32611‐7305
- Genetics InstituteUniversity of Florida, Cancer & Genetics Research Complex, PO Box 103610Gainesville Florida 32610‐3610
| | - Ali Al‐Meeri
- Department of Clinical Biochemistry, Faculty of Medicine and Health SciencesUniversity of Sana'aSana'a Yemen
| | - Connie J. Mulligan
- Department of AnthropologyUniversity of Florida, 1112 Turlington Hall, PO Box 117305Gainesville Florida 32611‐7305
- Genetics InstituteUniversity of Florida, Cancer & Genetics Research Complex, PO Box 103610Gainesville Florida 32610‐3610
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Sheridan SG. Bioarchaeology in the ancientNearEast: Challenges and future directions for the southern Levant. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2017; 162 Suppl 63:110-152. [DOI: 10.1002/ajpa.23149] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 11/02/2016] [Accepted: 11/10/2016] [Indexed: 12/19/2022]
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Rodriguez-Flores JL, Fakhro K, Agosto-Perez F, Ramstetter MD, Arbiza L, Vincent TL, Robay A, Malek JA, Suhre K, Chouchane L, Badii R, Al-Nabet Al-Marri A, Abi Khalil C, Zirie M, Jayyousi A, Salit J, Keinan A, Clark AG, Crystal RG, Mezey JG. Indigenous Arabs are descendants of the earliest split from ancient Eurasian populations. Genome Res 2016; 26:151-62. [PMID: 26728717 PMCID: PMC4728368 DOI: 10.1101/gr.191478.115] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 12/15/2015] [Indexed: 12/26/2022]
Abstract
An open question in the history of human migration is the identity of the earliest Eurasian populations that have left contemporary descendants. The Arabian Peninsula was the initial site of the out-of-Africa migrations that occurred between 125,000 and 60,000 yr ago, leading to the hypothesis that the first Eurasian populations were established on the Peninsula and that contemporary indigenous Arabs are direct descendants of these ancient peoples. To assess this hypothesis, we sequenced the entire genomes of 104 unrelated natives of the Arabian Peninsula at high coverage, including 56 of indigenous Arab ancestry. The indigenous Arab genomes defined a cluster distinct from other ancestral groups, and these genomes showed clear hallmarks of an ancient out-of-Africa bottleneck. Similar to other Middle Eastern populations, the indigenous Arabs had higher levels of Neanderthal admixture compared to Africans but had lower levels than Europeans and Asians. These levels of Neanderthal admixture are consistent with an early divergence of Arab ancestors after the out-of-Africa bottleneck but before the major Neanderthal admixture events in Europe and other regions of Eurasia. When compared to worldwide populations sampled in the 1000 Genomes Project, although the indigenous Arabs had a signal of admixture with Europeans, they clustered in a basal, outgroup position to all 1000 Genomes non-Africans when considering pairwise similarity across the entire genome. These results place indigenous Arabs as the most distant relatives of all other contemporary non-Africans and identify these people as direct descendants of the first Eurasian populations established by the out-of-Africa migrations.
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Affiliation(s)
- Juan L Rodriguez-Flores
- Department of Genetic Medicine, Weill Cornell Medical College, New York, New York 10065, USA
| | - Khalid Fakhro
- Sidra Medical and Research Center, Doha, Qatar; Department of Genetic Medicine, Weill Cornell Medical College-Qatar, Doha, Qatar
| | - Francisco Agosto-Perez
- Department of Genetic Medicine, Weill Cornell Medical College, New York, New York 10065, USA; Department of Biological Statistics and Computational Biology, Cornell University, Ithaca, New York 14850, USA
| | - Monica D Ramstetter
- Department of Biological Statistics and Computational Biology, Cornell University, Ithaca, New York 14850, USA
| | - Leonardo Arbiza
- Department of Biological Statistics and Computational Biology, Cornell University, Ithaca, New York 14850, USA
| | - Thomas L Vincent
- Department of Genetic Medicine, Weill Cornell Medical College, New York, New York 10065, USA
| | - Amal Robay
- Department of Genetic Medicine, Weill Cornell Medical College-Qatar, Doha, Qatar
| | - Joel A Malek
- Department of Genetic Medicine, Weill Cornell Medical College-Qatar, Doha, Qatar
| | - Karsten Suhre
- Bioinformatics Core, Weill Cornell Medical College-Qatar, Doha, Qatar
| | - Lotfi Chouchane
- Department of Genetic Medicine, Weill Cornell Medical College-Qatar, Doha, Qatar
| | - Ramin Badii
- Laboratory Medicine and Pathology, Hamad Medical Corporation, Doha, Qatar
| | | | - Charbel Abi Khalil
- Department of Genetic Medicine, Weill Cornell Medical College-Qatar, Doha, Qatar
| | - Mahmoud Zirie
- Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - Amin Jayyousi
- Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - Jacqueline Salit
- Department of Genetic Medicine, Weill Cornell Medical College, New York, New York 10065, USA
| | - Alon Keinan
- Department of Biological Statistics and Computational Biology, Cornell University, Ithaca, New York 14850, USA
| | - Andrew G Clark
- Department of Biological Statistics and Computational Biology, Cornell University, Ithaca, New York 14850, USA
| | - Ronald G Crystal
- Department of Genetic Medicine, Weill Cornell Medical College, New York, New York 10065, USA
| | - Jason G Mezey
- Department of Genetic Medicine, Weill Cornell Medical College, New York, New York 10065, USA; Department of Biological Statistics and Computational Biology, Cornell University, Ithaca, New York 14850, USA
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Vyas DN, Kitchen A, Miró‐Herrans AT, Pearson LN, Al‐Meeri A, Mulligan CJ. Bayesian analyses of Yemeni mitochondrial genomes suggest multiple migration events with Africa and Western Eurasia. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2015; 159:382-93. [DOI: 10.1002/ajpa.22890] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 09/21/2015] [Accepted: 10/23/2015] [Indexed: 12/31/2022]
Affiliation(s)
- Deven N. Vyas
- Department of AnthropologyUniversity of FloridaGainesville FL32611‐7305
- Genetics Institute, University of FloridaGainesville FL32610‐3610
| | - Andrew Kitchen
- Department of AnthropologyUniversity of IowaIowa City IA52242
| | - Aida T. Miró‐Herrans
- Department of AnthropologyUniversity of FloridaGainesville FL32611‐7305
- Genetics Institute, University of FloridaGainesville FL32610‐3610
| | - Laurel N. Pearson
- Department of AnthropologyUniversity of FloridaGainesville FL32611‐7305
- Genetics Institute, University of FloridaGainesville FL32610‐3610
| | - Ali Al‐Meeri
- Department of Clinical Biochemistry, Faculty of Medicine and Health SciencesUniversity of Sana'aSana'a Yemen
| | - Connie J. Mulligan
- Department of AnthropologyUniversity of FloridaGainesville FL32611‐7305
- Genetics Institute, University of FloridaGainesville FL32610‐3610
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Danubio ME, Milia N, Coppa A, Rufo F, Sanna E. Geographical and temporal changes of anthropometric traits in historical Yemen. HOMO-JOURNAL OF COMPARATIVE HUMAN BIOLOGY 2015; 67:11-22. [PMID: 26456121 DOI: 10.1016/j.jchb.2015.09.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 07/26/2015] [Indexed: 10/23/2022]
Abstract
This study investigates secular changes of anthropometric variables among four geographic groups in historical Yemen, to evaluate possible regional differences in the evolution of living standards. Nineteen somatic and cephalic measures collected by Coon in 1939, and 8 anthropometric indices in 1244 Yemenite adult males were analyzed. The individuals were divided into 10-year age groups. Within-group variations were tested by One-way ANCOVA (age as covariate). ANCOVA (controlling for age), and Forward stepwise discriminant analysis were used to evaluate and represent regional differences. ANCOVA and discriminant analysis confirmed and enhanced previous findings. At the time, the Yemenite population presented high intergroup heterogeneity. The highest mean values of height at all ages were found in the "mountain" region, which is characterized by very fertile soils and where, nowadays, most of the cereals and pulses are grown and where most livestock is raised. Within-group variations were limited and generally inconsistent in all geographic regions and concern vertical dimensions, but mean values of height never differed. The prolonged internal isolation of these groups resulted in significant regional morphometric differentiation. The main evidence comes from height which suggests that socioeconomic factors have played a role. Nevertheless, the possible better living conditions experienced by the "mountain" group, with the highest mean values of stature in all periods, did not allow the secular trend to take place in that region, too.
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Affiliation(s)
- Maria Enrica Danubio
- Università dell'Aquila, Dipartimento di Medicina Clinica, Sanità Pubblica, Scienze della Vita e dell'Ambiente, L'Aquila 67100, Italy
| | - Nicola Milia
- Università di Cagliari, Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Antropologia, Monserrato 09042, Italy.
| | - Alfredo Coppa
- Università di Roma 'La Sapienza', Dipartimento di Biologia Ambientale, Rome 00185, Italy
| | - Fabrizio Rufo
- Università di Roma 'La Sapienza', Dipartimento di Biologia Ambientale, Rome 00185, Italy
| | - Emanuele Sanna
- Università di Cagliari, Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Antropologia, Monserrato 09042, Italy
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16
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Tadmouri GO, Sastry KS, Chouchane L. Arab gene geography: From population diversities to personalized medical genomics. Glob Cardiol Sci Pract 2014; 2014:394-408. [PMID: 25780794 PMCID: PMC4355514 DOI: 10.5339/gcsp.2014.54] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Accepted: 12/11/2014] [Indexed: 12/20/2022] Open
Abstract
Genetic disorders are not equally distributed over the geography of the Arab region. While a number of disorders have a wide geographical presence encompassing 10 or more Arab countries, almost half of these disorders occur in a single Arab country or population. Nearly, one-third of the genetic disorders in Arabs result from congenital malformations and chromosomal abnormalities, which are also responsible for a significant proportion of neonatal and perinatal deaths in Arab populations. Strikingly, about two-thirds of these diseases in Arab patients follow an autosomal recessive mode of inheritance. High fertility rates together with increased consanguineous marriages, generally noticed in Arab populations, tend to increase the rates of genetic and congenital abnormalities. Many of the nearly 500 genes studied in Arab people revealed striking spectra of heterogeneity with many novel and rare mutations causing large arrays of clinical outcomes. In this review we provided an overview of Arab gene geography, and various genetic abnormalities in Arab populations, including disorders of blood, metabolic, circulatory and neoplasm, and also discussed their associated molecules or genes responsible for the cause of these disorders. Although studying Arab-specific genetic disorders resulted in a high value knowledge base, approximately 35% of genetic diseases in Arabs do not have a defined molecular etiology. This is a clear indication that comprehensive research is required in this area to understand the molecular pathologies causing diseases in Arab populations.
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Affiliation(s)
| | - Konduru S Sastry
- Laboratory of Genetic Medicine and Immunology, Weill Cornell Medical College in Qatar, Qatar Foundation, Doha, Qatar
| | - Lotfi Chouchane
- Laboratory of Genetic Medicine and Immunology, Weill Cornell Medical College in Qatar, Qatar Foundation, Doha, Qatar
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17
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Al-Mahruqi SH, Zadjali F, Beja-Pereira A, Koh CY, Balkhair A, Al-Jabri AA. Genetic diversity and prevalence of CCR2-CCR5 gene polymorphisms in the Omani population. Genet Mol Biol 2014; 37:7-14. [PMID: 24688285 PMCID: PMC3958329 DOI: 10.1590/s1415-47572014000100004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2012] [Accepted: 09/11/2013] [Indexed: 11/22/2022] Open
Abstract
Polymorphisms in the regulatory region of the CCR5 gene affect protein expression and modulate the progress of HIV-1 disease. Because of this prominent role, variations in this gene have been under differential pressure and their frequencies vary among human populations. The CCR2V64I mutation is tightly linked to certain polymorphisms in the CCR5 gene. The current Omani population is genetically diverse, a reflection of their history as traders who ruled extensive regions around the Indian Ocean. In this study, we examined the CCR2-CCR5 haplotypes in Omanis and compared the patterns of genetic diversity with those of other populations. Blood samples were collected from 115 Omani adults and genomic DNA was screened to identify the polymorphic sites in the CCR5 gene and the CCR2V64I mutation. Four minor alleles were common: CCR5-2554T and CCR5-2086G showed frequencies of 49% and 46%, respectively, whereas CCR5-2459A and CCR5-2135C both had a frequency of 36%. These alleles showed moderate levels of heterozygosity, indicating that they were under balancing selection. However, the well-known allele CCR5Δ32 was relatively rare. Eleven haplotypes were identified, four of which were common: HHC (46%), HHE (20%), HHA (14%) and HHF*2 (12%).
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Affiliation(s)
- Samira H Al-Mahruqi
- Division of Immunology, Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Fahad Zadjali
- Department of Biochemistry, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Albano Beja-Pereira
- Center for Research in Biodiversity and Genetic Resources & Department of Biology, Faculty of Sciences, Universidade do Porto, Portugal
| | - Crystal Y Koh
- Division of Immunology, Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Abdullah Balkhair
- Infectious Diseases Unit, Department of Medicine, Sultan Qaboos University Hospital, Muscat, Oman
| | - Ali A Al-Jabri
- Division of Immunology, Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
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18
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Hernández CL, Reales G, Dugoujon JM, Novelletto A, Rodríguez JN, Cuesta P, Calderón R. Human maternal heritage in Andalusia (Spain): its composition reveals high internal complexity and distinctive influences of mtDNA haplogroups U6 and L in the western and eastern side of region. BMC Genet 2014; 15:11. [PMID: 24460736 PMCID: PMC3905667 DOI: 10.1186/1471-2156-15-11] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Accepted: 01/17/2014] [Indexed: 12/03/2022] Open
Abstract
Background The archeology and history of the ancient Mediterranean have shown that this sea has been a permeable obstacle to human migration. Multiple cultural exchanges around the Mediterranean have taken place with presumably population admixtures. A gravitational territory of those migrations has been the Iberian Peninsula. Here we present a comprehensive analysis of the maternal gene pool, by means of control region sequencing and PCR-RFLP typing, of autochthonous Andalusians originating from the coastal provinces of Huelva and Granada, located respectively in the west and the east of the region. Results The mtDNA haplogroup composition of these two southern Spanish populations has revealed a wide spectrum of haplogroups from different geographical origins. The registered frequencies of Eurasian markers, together with the high incidence and diversification of African maternal lineages (15% of the total mitochondrial variability) among Huelva Andalusians when compared to its eastwards relatives of Granada and other Iberian populations, constitute relevant findings unknown up-to-date on the characteristics of mtDNA within Andalusia that testifies a female population substructure. Therefore, Andalusia must not be considered a single, unique population. Conclusions The maternal legacy among Andalusians reflects distinctive local histories, pointing out the role of the westernmost territory of Peninsular Spain as a noticeable recipient of multiple and diverse human migrations. The obtained results underline the necessity of further research on genetic relationships in both sides of the western Mediterranean, using carefully collected samples from autochthonous individuals. Many studies have focused on recent North African gene flow towards Iberia, yet scientific attention should be now directed to thoroughly study the introduction of European genes in northwest Africa across the sea, in order to determine its magnitude, timescale and methods, and to compare them to those terrestrial movements from eastern Africa and southwestern Asia.
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Affiliation(s)
| | | | | | | | | | | | - Rosario Calderón
- Departamento de Zoología y Antropología Física, Facultad de Biología, Universidad Complutense, Madrid, Spain.
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Bleuze MM, Wheeler SM, Dupras TL, Williams LJ, El Molto J. An exploration of adult body shape and limb proportions at Kellis 2, Dakhleh Oasis, Egypt. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2014; 153:496-505. [PMID: 24374824 DOI: 10.1002/ajpa.22450] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Accepted: 12/03/2013] [Indexed: 11/08/2022]
Abstract
Several studies have shown that the human body generally conforms to the ecogeographical expectations of Bergmann's and Allen's rules; however, recent evidence suggests that these expectations may not hold completely for some populations. Egypt is located at the crossroads of Sub-Saharan Africa, Southern Europe, and the Near East, and gene flow among groups in these regions may confound ecogeographical patterning. In this study, we test the fit of the adult physique of a large sample (N = 163) of females and males from the Kellis 2 cemetery (Dakhleh Oasis, Egypt) against ecogeographical predictions. Body shape (i.e., body mass relative to stature) was assessed by the femur head diameter to bicondylar femur length index (FHD/BFL), and brachial and crural indices were calculated to examine intralimb proportions. Body shape in the Kellis 2 sample is not significantly different from high-latitude groups and a Lower Nubian sample, and intralimb proportions are not significantly different from mid-latitude and other low-latitude groups. This study demonstrates the potential uniqueness of body shape and intralimb proportions in an ancient Egyptian sample, and further highlights the complex relationship between ecogeographic patterning and adaptation.
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Affiliation(s)
- Michele M Bleuze
- Department of Anthropology, The University at Albany, State University of New York, Albany, NY, 12222
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20
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Investigation of mtDNA control region sequences in an Egyptian population sample. Leg Med (Tokyo) 2013; 15:338-41. [DOI: 10.1016/j.legalmed.2013.06.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 06/17/2013] [Accepted: 06/24/2013] [Indexed: 10/26/2022]
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21
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United Arab Emirates: phylogenetic relationships and ancestral populations. Gene 2013; 533:411-9. [PMID: 24120897 DOI: 10.1016/j.gene.2013.09.092] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 09/22/2013] [Accepted: 09/25/2013] [Indexed: 11/23/2022]
Abstract
In the current report, 109 unrelated individuals from the United Arab Emirates (UAE) were typed across 15 autosomal short tandem repeat (STR) loci (D8S1179, D21S11, D7S820, CSF1PO, D3S1358, TH01, D13S317, D16S539, D2S1338, D149S433, vWA, TPOX, D18S51, D5S818 and FGA) routinely employed in population genetics analyses and compared across a set of ethnically and geographically targeted reference collections. UAE, located at the southeastern most portion of the Arabian Peninsula, in the tri-continental crossroads connecting Africa, Europe and Asia, has been influenced by a number of human dispersal waves from a plethora of sources including the Paleolithic "Out of Africa" migrations, the exodus of Neolithic pastoral agriculturalists from the Fertile Crescent and Northern Africa, as well as more recent migrations from Asia and the Middle East. We found that despite the high levels of consanguinity that characterize UAE, this population is genetically highly heterogeneous. When compared to various world-wide biogeographical regions, the Arabian Peninsula exhibits the highest intra-population variance. Admixture analyses indicate that UAE and Bahrain uniquely in Arabia share 23.7% and 22.9%, respectively, of their DNA with Southwest Asian populations. Similar and complex Structure profiles are seen among Arabian Peninsula populations underscoring the high genetic diversity of the region. Although UAE shares a number of genetic characteristics in common with the rest of the populations in the Arabian Peninsula, it is unique in terms of its relative high Asian genetic component, likely the result of geographical proximity to Southwest Asia, west-bound waves of migration and socio-political ties with territories to the east.
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22
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Al-Mahruqi SH, Zadjali F, Koh CY, Balkhair A, Said EA, Al-Balushi MS, Hasson SS, Al-Jabri AA. New genetic variants in the CCR5 gene and the distribution of known polymorphisms in Omani population. Int J Immunogenet 2013; 41:20-8. [DOI: 10.1111/iji.12081] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 06/12/2013] [Accepted: 07/15/2013] [Indexed: 12/17/2022]
Affiliation(s)
- S. H. Al-Mahruqi
- Division of Immunology; Department of Microbiology and Immunology; College of Medicine and Health Sciences; Sultan Qaboos University; Muscat Oman
| | - F. Zadjali
- Department of Biochemistry; College of Medicine and Health Sciences; Sultan Qaboos University; Muscat Oman
| | - C. Y. Koh
- Division of Immunology; Department of Microbiology and Immunology; College of Medicine and Health Sciences; Sultan Qaboos University; Muscat Oman
| | - A. Balkhair
- Infectious Diseases Unit; Department of Medicine; Sultan Qaboos University Hospital; Muscat Oman
| | - E. A. Said
- Division of Immunology; Department of Microbiology and Immunology; College of Medicine and Health Sciences; Sultan Qaboos University; Muscat Oman
| | - M. S. Al-Balushi
- Division of Immunology; Department of Microbiology and Immunology; College of Medicine and Health Sciences; Sultan Qaboos University; Muscat Oman
| | - S. S. Hasson
- Division of Immunology; Department of Microbiology and Immunology; College of Medicine and Health Sciences; Sultan Qaboos University; Muscat Oman
| | - A. A. Al-Jabri
- Division of Immunology; Department of Microbiology and Immunology; College of Medicine and Health Sciences; Sultan Qaboos University; Muscat Oman
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23
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Badro DA, Douaihy B, Haber M, Youhanna SC, Salloum A, Ghassibe-Sabbagh M, Johnsrud B, Khazen G, Matisoo-Smith E, Soria-Hernanz DF, Wells RS, Tyler-Smith C, Platt DE, Zalloua PA. Y-chromosome and mtDNA genetics reveal significant contrasts in affinities of modern Middle Eastern populations with European and African populations. PLoS One 2013; 8:e54616. [PMID: 23382925 PMCID: PMC3559847 DOI: 10.1371/journal.pone.0054616] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Accepted: 12/13/2012] [Indexed: 11/21/2022] Open
Abstract
The Middle East was a funnel of human expansion out of Africa, a staging area for the Neolithic Agricultural Revolution, and the home to some of the earliest world empires. Post LGM expansions into the region and subsequent population movements created a striking genetic mosaic with distinct sex-based genetic differentiation. While prior studies have examined the mtDNA and Y-chromosome contrast in focal populations in the Middle East, none have undertaken a broad-spectrum survey including North and sub-Saharan Africa, Europe, and Middle Eastern populations. In this study 5,174 mtDNA and 4,658 Y-chromosome samples were investigated using PCA, MDS, mean-linkage clustering, AMOVA, and Fisher exact tests of FST's, RST's, and haplogroup frequencies. Geographic differentiation in affinities of Middle Eastern populations with Africa and Europe showed distinct contrasts between mtDNA and Y-chromosome data. Specifically, Lebanon's mtDNA shows a very strong association to Europe, while Yemen shows very strong affinity with Egypt and North and East Africa. Previous Y-chromosome results showed a Levantine coastal-inland contrast marked by J1 and J2, and a very strong North African component was evident throughout the Middle East. Neither of these patterns were observed in the mtDNA. While J2 has penetrated into Europe, the pattern of Y-chromosome diversity in Lebanon does not show the widespread affinities with Europe indicated by the mtDNA data. Lastly, while each population shows evidence of connections with expansions that now define the Middle East, Africa, and Europe, many of the populations in the Middle East show distinctive mtDNA and Y-haplogroup characteristics that indicate long standing settlement with relatively little impact from and movement into other populations.
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Affiliation(s)
| | | | - Marc Haber
- The Lebanese American University, Chouran, Beirut, Lebanon
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències de la Salut i de la Vida, Universitat Pompeu Fabra, Barcelona, Spain
| | | | | | | | - Brian Johnsrud
- Modern Thought and Literature, Stanford University, Stanford, California, United States of America
| | - Georges Khazen
- The Lebanese American University, Chouran, Beirut, Lebanon
| | - Elizabeth Matisoo-Smith
- Allan Wilson Centre for Molecular Ecology and Evolution, University of Otago, Dunedin, New Zealand
| | - David F. Soria-Hernanz
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències de la Salut i de la Vida, Universitat Pompeu Fabra, Barcelona, Spain
- The Genographic Project, National Geographic Society, Washington, DC, United States of America
| | - R. Spencer Wells
- The Genographic Project, National Geographic Society, Washington, DC, United States of America
| | - Chris Tyler-Smith
- The Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, United Kingdom
| | - Daniel E. Platt
- Computational Biology Centre, IBM TJ Watson Research Centre, Yorktown Heights, New York, United States of America
| | - Pierre A. Zalloua
- The Lebanese American University, Chouran, Beirut, Lebanon
- Harvard School of Public Health, Boston, Massachusetts, United States of America
- * E-mail:
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Danubio ME, Sanna E, Rufo F, Martorella D, Vecchi E, Coppa A. Microgeographic differentiation in historical Yemen inferred by morphometric distances. Hum Biol 2012; 84:153-67. [PMID: 22708819 DOI: 10.3378/027.084.0204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This study analyzed the variations in space of 8 body dimensions and 11 measures of the head of 1,244 adult Yemenite males, collected in 1933/34 by Coon in Yemen and in Hadhramawt. The aim was to evaluate the presence of geographic microdifferentiation of the populations settled in the different regions of Yemen at the time. Coon sub-divided the sample into six geographical areas according to birthplace and ethnicity of the individuals: Tihamah, the Western Mountains, the Central Plateau, the South Coast, the Eastern Mountains, and Hadhramawt. The results of ANCOVA (age as covariate) show that the observed differences of all variables among the six groups were highly statistically significant. Tukey's post-hoc test reveals higher statistically significant differences among four main groups: (1) Tihamah; (2) the Western Mountains and Central Plateau; (3) the Eastern Mountains; and (4) the Southern Coast and Hadhramawt. Multiple discriminant analysis carried out using only the data of the 11 measures of the head, the more "genetically" determined variables, confirmed these differences. Indeed, the first canonical variate well separates the groups with the Tihamah, Southern Coast and Hadhramawt on the one side and the Eastern Mountains, Western Mountains and Central Plateau on the other. The second canonical variate separates the Tihamah, Western Mountains and Central Plateau from the Eastern Mountains, Southern Coast and Hadhramawt. In conclusion, the Yemenite population seems to be composed of three morphologically distinct groups and an Eastern Mountains group which is positioned between the group formed by the Southern Coast and Hadhramawt and the Western Mountains and Central Plateau group. The Tihamah is the most distant from all the other groups. These differences are probably due to the presence/absence of geographical and cultural barriers that have favored/blocked the gene flow over the years. Indeed, the entire coastal bell, through the centuries, has constituted one of the principal commercial routes between the East, Africa, and the eastern Mediterranean, while the high inland mountains have isolated the remaining communities. This data is also confirmed by genetic studies. Finally, the average height (162.6 cm) of the global Yemenite population, compared to data from the other six middle-eastern Arab countries and Egypt, was found to be 3-6 cm less. This characteristic will be further studied, analyzing variations in average height according to the different age classes in order to evaluate any possible secular changes.
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Affiliation(s)
- Maria Enrica Danubio
- Università dell'Aquila, Dipartimento di Scienze Ambientali, 67100 L'Aquila, Italy.
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25
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Rose JI, Usik VI, Marks AE, Hilbert YH, Galletti CS, Parton A, Geiling JM, Cerný V, Morley MW, Roberts RG. The Nubian Complex of Dhofar, Oman: an African middle stone age industry in Southern Arabia. PLoS One 2011; 6:e28239. [PMID: 22140561 PMCID: PMC3227647 DOI: 10.1371/journal.pone.0028239] [Citation(s) in RCA: 154] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Accepted: 11/04/2011] [Indexed: 11/30/2022] Open
Abstract
Despite the numerous studies proposing early human population expansions from Africa into Arabia during the Late Pleistocene, no archaeological sites have yet been discovered in Arabia that resemble a specific African industry, which would indicate demographic exchange across the Red Sea. Here we report the discovery of a buried site and more than 100 new surface scatters in the Dhofar region of Oman belonging to a regionally-specific African lithic industry--the late Nubian Complex--known previously only from the northeast and Horn of Africa during Marine Isotope Stage 5, ∼128,000 to 74,000 years ago. Two optically stimulated luminescence age estimates from the open-air site of Aybut Al Auwal in Oman place the Arabian Nubian Complex at ∼106,000 years ago, providing archaeological evidence for the presence of a distinct northeast African Middle Stone Age technocomplex in southern Arabia sometime in the first half of Marine Isotope Stage 5.
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Affiliation(s)
- Jeffrey I Rose
- Institute of Archaeology and Antiquity, University of Birmingham, Birmingham, United Kingdom.
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26
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Abstract
Mitochondrial DNA (mtDNA) and Y-chromosome variation has been studied in Bou Omrane and Bou Saâd, two Tunisian Berber populations. In spite of their close geographic proximity, genetic distances between them were high and significant with both uniparental markers. A global analysis, including all previously studied Tunisian samples, confirmed the existence of a high female and male population structure in this country. Analyses of molecular variance analysis evidenced that this differentiation was not attributable to ethnic differences. Mantel test showed that, in all cases, Y-chromosome haplotypic distances correlated poorly with geography, whereas after excluding the more isolated samples of Bou Omrane and Bou Saâd, the mtDNA pattern of variation is significantly correlated with geography. Congruently, the N(m) ratio of males versus females pointed to a significant excess of female migration rate across localities, which could be explained by patrilocality, a common marriage system in rural Tunisia. In addition, it has been observed that cultural isolation in rural communities promotes, by the effect of genetic drift, stronger loss of diversity and larger genetic differentiation levels than those observed in urban areas as deduced from comparisons of their respective mean genetic diversity and their respective mean genetic distances among populations. It is likely that the permanent exodus from rural to urban areas will have important repercussions in the future genetic structure of this country.
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Musilová E, Fernandes V, Silva NM, Soares P, Alshamali F, Harich N, Cherni L, Gaaied ABAE, Al-Meeri A, Pereira L, Cerný V. Population history of the Red Sea--genetic exchanges between the Arabian Peninsula and East Africa signaled in the mitochondrial DNA HV1 haplogroup. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2011; 145:592-8. [PMID: 21660931 DOI: 10.1002/ajpa.21522] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Accepted: 02/07/2011] [Indexed: 11/11/2022]
Abstract
Archaeological studies have revealed cultural connections between the two sides of the Red Sea dating to prehistory. The issue has still not been properly addressed, however, by archaeogenetics. We focus our attention here on the mitochondrial haplogroup HV1 that is present in both the Arabian Peninsula and East Africa. The internal variation of 38 complete mitochondrial DNA sequences (20 of them presented here for the first time) affiliated into this haplogroup testify to its emergence during the late glacial maximum, most probably in the Near East, with subsequent dispersion via population expansions when climatic conditions improved. Detailed phylogeography of HV1 sequences shows that more recent demographic upheavals likely contributed to their spread from West Arabia to East Africa, a finding concordant with archaeological records suggesting intensive maritime trade in the Red Sea from the sixth millennium BC onwards. Closer genetic exchanges are apparent between the Horn of Africa and Yemen, while Egyptian HV1 haplotypes seem to be more similar to the Near Eastern ones.
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Affiliation(s)
- Eliška Musilová
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University, Prague, Czech Republic
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28
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Beyin A. Upper Pleistocene Human Dispersals out of Africa: A Review of the Current State of the Debate. INTERNATIONAL JOURNAL OF EVOLUTIONARY BIOLOGY 2011; 2011:615094. [PMID: 21716744 PMCID: PMC3119552 DOI: 10.4061/2011/615094] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Revised: 01/22/2011] [Accepted: 02/24/2011] [Indexed: 12/31/2022]
Abstract
Although there is a general consensus on African origin of early modern humans, there is disagreement about how and when they dispersed to Eurasia. This paper reviews genetic and Middle Stone Age/Middle Paleolithic archaeological literature from northeast Africa, Arabia, and the Levant to assess the timing and geographic backgrounds of Upper Pleistocene human colonization of Eurasia. At the center of the discussion lies the question of whether eastern Africa alone was the source of Upper Pleistocene human dispersals into Eurasia or were there other loci of human expansions outside of Africa? The reviewed literature hints at two modes of early modern human colonization of Eurasia in the Upper Pleistocene: (i) from multiple Homo sapiens source populations that had entered Arabia, South Asia, and the Levant prior to and soon after the onset of the Last Interglacial (MIS-5), (ii) from a rapid dispersal out of East Africa via the Southern Route (across the Red Sea basin), dating to ~74–60 kya.
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Affiliation(s)
- Amanuel Beyin
- Turkana Basin Institute, Stony Brook University, SBS Building 5th Floor, Stony Brook, NY 11794, USA
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van Oven M, Vermeulen M, Kayser M. Multiplex genotyping system for efficient inference of matrilineal genetic ancestry with continental resolution. INVESTIGATIVE GENETICS 2011; 2:6. [PMID: 21429198 PMCID: PMC3078086 DOI: 10.1186/2041-2223-2-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Accepted: 03/23/2011] [Indexed: 12/17/2022]
Abstract
Background In recent years, phylogeographic studies have produced detailed knowledge on the worldwide distribution of mitochondrial DNA (mtDNA) variants, linking specific clades of the mtDNA phylogeny with certain geographic areas. However, a multiplex genotyping system for the detection of the mtDNA haplogroups of major continental distribution that would be desirable for efficient DNA-based bio-geographic ancestry testing in various applications is still missing. Results Three multiplex genotyping assays, based on single-base primer extension technology, were developed targeting a total of 36 coding-region mtDNA variants that together differentiate 43 matrilineal haplo-/paragroups. These include the major diagnostic haplogroups for Africa, Western Eurasia, Eastern Eurasia and Native America. The assays show high sensitivity with respect to the amount of template DNA: successful amplification could still be obtained when using as little as 4 pg of genomic DNA and the technology is suitable for medium-throughput analyses. Conclusions We introduce an efficient and sensitive multiplex genotyping system for bio-geographic ancestry inference from mtDNA that provides resolution on the continental level. The method can be applied in forensics, to aid tracing unknown suspects, as well as in population studies, genealogy and personal ancestry testing. For more complete inferences of overall bio-geographic ancestry from DNA, the mtDNA system provided here can be combined with multiplex systems for suitable autosomal and, in the case of males, Y-chromosomal ancestry-sensitive DNA markers.
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Affiliation(s)
- Mannis van Oven
- Department of Forensic Molecular Biology, Erasmus MC University Medical Center Rotterdam, 3000 CA Rotterdam, The Netherlands.
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Terreros MC, Rowold DJ, Mirabal S, Herrera RJ. Mitochondrial DNA and Y-chromosomal stratification in Iran: relationship between Iran and the Arabian Peninsula. J Hum Genet 2011; 56:235-46. [PMID: 21326310 DOI: 10.1038/jhg.2010.174] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Modern day Iran is strategically located in the tri-continental corridor uniting Africa, Europe and Asia. Several ethnic groups belonging to distinct religions, speaking different languages and claiming divergent ancestries inhabit the region, generating a potentially diverse genetic reservoir. In addition, past pre-historical and historical events such as the out-of-Africa migrations, the Neolithic expansion from the Fertile Crescent, the Indo-Aryan treks from the Central Asian steppes, the westward Mongol expansions and the Muslim invasions may have chiseled their genetic fingerprints within the genealogical substrata of the Persians. On the other hand, the Iranian perimeter is bounded by the Zagros and Albrez mountain ranges, and the Dasht-e Kavir and Dash-e Lut deserts, which may have restricted gene flow from neighboring regions. By utilizing high-resolution mitochondrial DNA (mtDNA) markers and reanalyzing our previously published Y-chromosomal data, we have found a previously unexplored, genetic connection between Iranian populations and the Arabian Peninsula, likely the result of both ancient and recent gene flow. Furthermore, the regional distribution of mtDNA haplogroups J, I, U2 and U7 also provides evidence of barriers to gene flow posed by the two major Iranian deserts and the Zagros mountain range.
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Affiliation(s)
- Maria C Terreros
- Department of Molecular and Human Genetics, College of Medicine, Florida International University, Miami, FL FL 33199, USA
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Brucato N, Cassar O, Tonasso L, Tortevoye P, Migot-Nabias F, Plancoulaine S, Guitard E, Larrouy G, Gessain A, Dugoujon JM. The imprint of the Slave Trade in an African American population: mitochondrial DNA, Y chromosome and HTLV-1 analysis in the Noir Marron of French Guiana. BMC Evol Biol 2010; 10:314. [PMID: 20958967 PMCID: PMC2973943 DOI: 10.1186/1471-2148-10-314] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2010] [Accepted: 10/19/2010] [Indexed: 11/17/2022] Open
Abstract
Background Retracing the genetic histories of the descendant populations of the Slave Trade (16th-19th centuries) is particularly challenging due to the diversity of African ethnic groups involved and the different hybridisation processes with Europeans and Amerindians, which have blurred their original genetic inheritances. The Noir Marron in French Guiana are the direct descendants of maroons who escaped from Dutch plantations in the current day Surinam. They represent an original ethnic group with a highly blended culture. Uniparental markers (mtDNA and NRY) coupled with HTLV-1 sequences (env and LTR) were studied to establish the genetic relationships linking them to African American and African populations. Results All genetic systems presented a high conservation of the African gene pool (African ancestry: mtDNA = 99.3%; NRY = 97.6%; HTLV-1 env = 20/23; HTLV-1 LTR = 6/8). Neither founder effect nor genetic drift was detected and the genetic diversity is within a range commonly observed in Africa. Higher genetic similarities were observed with the populations inhabiting the Bight of Benin (from Ivory Coast to Benin). Other ancestries were identified but they presented an interesting sex-bias. Whilst male origins spread throughout the north of the bight (from Benin to Senegal), female origins were spread throughout the south (from the Ivory Coast to Angola). Conclusions The Noir Marron are unique in having conserved their African genetic ancestry, despite major cultural exchanges with Amerindians and Europeans through inhabiting the same region for four centuries. Their maroon identity and the important number of slaves deported in this region have maintained the original African diversity. All these characteristics permit to identify a major origin located in the former region of the Gold Coast and the Bight of Benin; regions highly impacted by slavery, from which goes a sex-biased longitudinal gradient of ancestry.
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Affiliation(s)
- Nicolas Brucato
- Laboratoire d'Anthropobiologie Moléculaire et Imagerie de Synthèse, CNRS and Université Paul Sabatier, FRE2960, Toulouse, France.
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Petraglia MD, Haslam M, Fuller DQ, Boivin N, Clarkson C. Out of Africa: new hypotheses and evidence for the dispersal of Homo sapiens along the Indian Ocean rim. Ann Hum Biol 2010; 37:288-311. [PMID: 20334598 DOI: 10.3109/03014461003639249] [Citation(s) in RCA: 130] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The dispersal of Homo sapiens out of Africa is a significant topic in human evolutionary studies. Most investigators agree that our species arose in Africa and subsequently spread out to occupy much of Eurasia. Researchers have argued that populations expanded along the Indian Ocean rim at ca 60,000 years ago during a single rapid dispersal event, probably employing a coastal route towards Australasia. Archaeologists have been relatively silent about the movement and expansion of human populations in terrestrial environments along the Indian Ocean rim, although it is clear that Homo sapiens reached Australia by ca 45,000 years ago. Here, we synthesize and document current genetic and archaeological evidence from two major landmasses, the Arabian peninsula and the Indian subcontinent, regions that have been underplayed in the story of out of Africa dispersals. We suggest that modern humans were present in Arabia and South Asia earlier than currently believed, and probably coincident with the presence of Homo sapiens in the Levant between ca 130 and 70,000 years ago. We show that climatic and environmental fluctuations during the Late Pleistocene would have had significant demographic effects on Arabian and South Asian populations, though indigenous populations would have responded in different ways. Based on a review of the current genetic, archaeological and environmental data, we indicate that demographic patterns in Arabia and South Asia are more interesting and complex than surmised to date.
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Affiliation(s)
- Michael D Petraglia
- School of Archaeology, Research Laboratory for Archaeology and the History of Art, University of Oxford, Oxford, UK.
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Cerny V, Mulligan CJ, Fernandes V, Silva NM, Alshamali F, Non A, Harich N, Cherni L, El Gaaied ABA, Al-Meeri A, Pereira L. Internal Diversification of Mitochondrial Haplogroup R0a Reveals Post-Last Glacial Maximum Demographic Expansions in South Arabia. Mol Biol Evol 2010; 28:71-8. [DOI: 10.1093/molbev/msq178] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Bayesian Coalescent Inference from Mitochondrial DNA Variation of the Colonization Time of Arabia by the Hamadryas Baboon (Papio hamadryas hamadryas). THE EVOLUTION OF HUMAN POPULATIONS IN ARABIA 2010. [DOI: 10.1007/978-90-481-2719-1_7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Cabrera VM, Abu-Amero KK, Larruga JM, González AM. The Arabian peninsula: Gate for Human Migrations Out of Africa or Cul-de-Sac? A Mitochondrial DNA Phylogeographic Perspective. THE EVOLUTION OF HUMAN POPULATIONS IN ARABIA 2010. [DOI: 10.1007/978-90-481-2719-1_6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Kujanová M, Pereira L, Fernandes V, Pereira JB, Cerný V. Near eastern neolithic genetic input in a small oasis of the Egyptian Western Desert. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2009; 140:336-46. [PMID: 19425100 DOI: 10.1002/ajpa.21078] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The Egyptian Western Desert lies on an important geographic intersection between Africa and Asia. Genetic diversity of this region has been shaped, in part, by climatic changes in the Late Pleistocene and Holocene epochs marked by oscillating humid and arid periods. We present here a whole genome analysis of mitochondrial DNA (mtDNA) and high-resolution molecular analysis of nonrecombining Y-chromosomal (NRY) gene pools of a demographically small but autochthonous population from the Egyptian Western Desert oasis el-Hayez. Notwithstanding signs of expected genetic drift, we still found clear genetic evidence of a strong Near Eastern input that can be dated into the Neolithic. This is revealed by high frequencies and high internal variability of several mtDNA lineages from haplogroup T. The whole genome sequencing strategy and molecular dating allowed us to detect the accumulation of local mtDNA diversity to 5,138 +/- 3,633 YBP. Similarly, theY-chromosome gene pool reveals high frequencies of the Near Eastern J1 and the North African E1b1b1b lineages, both generally known to have expanded within North Africa during the Neolithic. These results provide another piece of evidence of the relatively young population history of North Africa.
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Affiliation(s)
- Martina Kujanová
- Archaeogenetics Laboratory, Institute of Archaeology of the Academy of Sciences of the Czech Republic, Prague, Czech Republic
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ZIDANA HASTINGS, TURNER GEORGEF, van OOSTERHOUT COCK, HÄNFLING BERND. Elevated mtDNA diversity in introduced populations ofCynotilapia afra(Günther 1894) in Lake Malawi National Park is evidence for multiple source populations and hybridization. Mol Ecol 2009; 18:4380-9. [DOI: 10.1111/j.1365-294x.2009.04362.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abu-Amero KK, Hellani A, González AM, Larruga JM, Cabrera VM, Underhill PA. Saudi Arabian Y-Chromosome diversity and its relationship with nearby regions. BMC Genet 2009; 10:59. [PMID: 19772609 PMCID: PMC2759955 DOI: 10.1186/1471-2156-10-59] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2008] [Accepted: 09/22/2009] [Indexed: 11/15/2022] Open
Abstract
Background Human origins and migration models proposing the Horn of Africa as a prehistoric exit route to Asia have stimulated molecular genetic studies in the region using uniparental loci. However, from a Y-chromosome perspective, Saudi Arabia, the largest country of the region, has not yet been surveyed. To address this gap, a sample of 157 Saudi males was analyzed at high resolution using 67 Y-chromosome binary markers. In addition, haplotypic diversity for its most prominent J1-M267 lineage was estimated using a set of 17 Y-specific STR loci. Results Saudi Arabia differentiates from other Arabian Peninsula countries by a higher presence of J2-M172 lineages. It is significantly different from Yemen mainly due to a comparative reduction of sub-Saharan Africa E1-M123 and Levantine J1-M267 male lineages. Around 14% of the Saudi Arabia Y-chromosome pool is typical of African biogeographic ancestry, 17% arrived to the area from the East across Iran, while the remainder 69% could be considered of direct or indirect Levantine ascription. Interestingly, basal E-M96* (n = 2) and J-M304* (n = 3) lineages have been detected, for the first time, in the Arabian Peninsula. Coalescence time for the most prominent J1-M267 haplogroup in Saudi Arabia (11.6 ± 1.9 ky) is similar to that obtained previously for Yemen (11.3 ± 2) but significantly older that those estimated for Qatar (7.3 ± 1.8) and UAE (6.8 ± 1.5). Conclusion The Y-chromosome genetic structure of the Arabian Peninsula seems to be mainly modulated by geography. The data confirm that this area has mainly been a recipient of gene flow from its African and Asian surrounding areas, probably mainly since the last Glacial maximum onwards. Although rare deep rooting lineages for Y-chromosome haplogroups E and J have been detected, the presence of more basal clades supportive of the southern exit route of modern humans to Eurasian, were not found.
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Affiliation(s)
- Khaled K Abu-Amero
- Molecular Genetics Laboratory, College of Medicine, King Saud University, Riyadh 11411, Saudi Arabia.
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Herrera KJ, Somarelli JA, Lowery RK, Herrera RJ. To what extent did Neanderthals and modern humans interact? Biol Rev Camb Philos Soc 2009; 84:245-57. [PMID: 19391204 DOI: 10.1111/j.1469-185x.2008.00071.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Neanderthals represent an extinct hominid lineage that existed in Europe and Asia for nearly 400,000 years. They thrived in these regions for much of this time, but declined in numbers and went extinct around 30,000 years ago. Interestingly, their disappearance occurred subsequent to the arrival of modern humans into these areas, which has prompted some to argue that Neanderthals were displaced by better suited and more adaptable modern humans. Still others have postulated that Neanderthals were assimilated into the gene pool of modern humans by admixture. Until relatively recently, conclusions about the relationships between Neanderthals and contemporary humans were based solely upon evidence left behind in the fossil and archaeological records. However, in the last decade, we have witnessed the introduction of metagenomic analyses, which have provided novel tools with which to study the levels of genetic interactions between this fascinating Homo lineage and modern humans. Were Neanderthals replaced by contemporary humans through dramatic extinction resulting from competition and/or hostility or through admixture? Were Neanderthals and modern humans two independent, genetically unique species or were they a single species, capable of producing fertile offspring? Here, we review the current anthropological, archaeological and genetic data, which shed some light on these questions and provide insight into the exact nature of the relationships between these two groups of humans.
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Affiliation(s)
- Kristian J Herrera
- Department of Human and Molecular Genetics, College of Medicine, Florida International University, 11200 SW 8th Street,Miami, FL 33199, USA
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Černý V, Pereira L, Kujanová M, Vašíková A, Hájek M, Morris M, Mulligan CJ. Out of Arabia-The settlement of Island Soqotra as revealed by mitochondrial and Y chromosome genetic diversity. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2009; 138:439-47. [DOI: 10.1002/ajpa.20960] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Coudray C, Olivieri A, Achilli A, Pala M, Melhaoui M, Cherkaoui M, El-Chennawi F, Kossmann M, Torroni A, Dugoujon JM. The complex and diversified mitochondrial gene pool of Berber populations. Ann Hum Genet 2008; 73:196-214. [PMID: 19053990 DOI: 10.1111/j.1469-1809.2008.00493.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The mitochondrial DNA variation of 295 Berber-speakers from Morocco (Asni, Bouhria and Figuig) and the Egyptian oasis of Siwa was evaluated by sequencing a portion of the control region (including HVS-I and part of HVS-II) and surveying haplogroup-specific coding region markers. Our findings show that the Berber mitochondrial pool is characterized by an overall high frequency of Western Eurasian haplogroups, a somehow lower frequency of sub-Saharan L lineages, and a significant (but differential) presence of North African haplogroups U6 and M1, thus occupying an intermediate position between European and sub-Saharan populations in PCA analysis. A clear and significant genetic differentiation between the Berbers from Maghreb and Egyptian Berbers was also observed. The first are related to European populations as shown by haplogroup H1 and V frequencies, whereas the latter share more affinities with East African and Nile Valley populations as indicated by the high frequency of M1 and the presence of L0a1, L3i, L4*, and L4b2 lineages. Moreover, haplogroup U6 was not observed in Siwa. We conclude that the origins and maternal diversity of Berber populations are old and complex, and these communities bear genetic characteristics resulting from various events of gene flow with surrounding and migrating populations.
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Affiliation(s)
- C Coudray
- Laboratoire d'Anthropobiologie, CNRS FRE2960, Université Paul Sabatier, 37 allées Jules Guesde, Toulouse, France.
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Martinez L, Mirabal S, Luis JR, Herrera RJ. Middle Eastern and European mtDNA lineages characterize populations from eastern Crete. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2008; 137:213-23. [PMID: 18500747 DOI: 10.1002/ajpa.20857] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Throughout centuries, the geographic location of the island of Crete has been one of the leading factors shaping the composition of its population. Invasions and commercial and cultural ties at various time periods with European, Middle Eastern, and North African civilizations have created a collage of genetic and/or cultural influences from each of these regions within the island. Previous Y-chromosome diversity analyses uncovered pronounced differences in the frequency distribution of haplogroups from a mountain refugium and surrounding lowland populations of eastern Crete. In this study, the current geographic stratification of mtDNA haplotypes in eastern Crete was explored to elucidate potential sources of maternal gene flow. Our work includes a comparative characterization of two lowland collections from the Heraklion and Lasithi Prefectures in eastern Crete, as well as of an isolated mountain population from the Lasithi Plateau, all three previously examined using Y-chromosome markers. In addition to the presence of European mtDNA haplogroups in all three collections, our analyses reveal a significant contribution of Middle Eastern and Central Asian genetic signatures in the island of Crete, and particularly in the two populations from the Lasithi region at the eastern-most portion of the island. Close association between these Cretan groups and the Balkans can also be discerned, which in the case of the Lasithi Plateau corroborates previously uncovered Y-chromosome affiliations with the same geographic region.
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Affiliation(s)
- Laisel Martinez
- Department of Biological Sciences, Florida International University, Miami, Florida 33199, USA
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Cerný V, Mulligan CJ, Rídl J, Zaloudková M, Edens CM, Hájek M, Pereira L. Regional differences in the distribution of the sub-Saharan, West Eurasian, and South Asian mtDNA lineages in Yemen. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2008; 136:128-37. [PMID: 18257024 DOI: 10.1002/ajpa.20784] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Despite its key location for population movements out of and back into Africa, Yemen has not yet been sampled on a regional level for an investigation of sub-Saharan, West Eurasian, and South Asian genetic contributions. In this study, we present mitochondrial DNA (mtDNA) data for regionally distinct Yemeni populations that reveal different distributions of mtDNA lineages. An extensive database of mtDNA sequences from North and East African, Middle Eastern and Indian populations was analyzed to provide a context for the regional Yemeni mtDNA datasets. The groups of western Yemen appear to be most closely related to Middle Eastern and North African populations, while the eastern Yemeni population from Hadramawt is most closely related to East Africa. Furthermore, haplotype matches with Africa are almost exclusively confined to West Eurasian R0a haplogroup in southwestern Yemen, although more sub-Saharan L-type matches appear in more northern Yemeni populations. In fact, Yemeni populations have the highest frequency of R0a haplotypes detected to date, thus Yemen or southern Arabia may be the site of the initial expansion of this haplogroup. Whereas two variants of the sub-Saharan haplogroup M1 were detected only in southwestern Yemen close to the Bab el-Mandeb Strait, different non-African M haplotypes were detected at low frequencies (approximately 2%) in western parts of the country and at a higher frequency (7.5%) in the Hadramawt. We conclude that the Yemeni gene pool is highly stratified both regionally and temporally and that it has received West Eurasian, Northeast African, and South Asian gene flow.
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Affiliation(s)
- Viktor Cerný
- Institute of Archaeology of Academy of Sciences of Czech Republic, Prague, v.v.i., Prague 118 01, The Czech Republic.
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González AM, Karadsheh N, Maca-Meyer N, Flores C, Cabrera VM, Larruga JM. Mitochondrial DNA variation in Jordanians and their genetic relationship to other Middle East populations. Ann Hum Biol 2008; 35:212-31. [PMID: 18428014 DOI: 10.1080/03014460801946538] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND The Levant is a crucial region in understanding human migrations between Africa and Eurasia. Although some mitochondrial DNA (mtDNA) studies have been carried out in this region, they have not included the Jordan area. This paper deals with the mtDNA composition of two Jordan populations. AIM The main objectives of this article are: first, to report mtDNA sequences of an urban and an isolate sample from Jordan and, second, to compare them with each other and with other nearby populations. SUBJECTS AND METHODS The analyses are based on HVSI and HVSII mtDNA sequences and diagnostic RFLPs to unequivocally classify into haplogroups 101 Amman and 44 Dead Sea unrelated individuals from Jordan. RESULTS Statistical analysis revealed that, whereas the sample from Amman did not significantly differ from their Levantine neighbours, the Dead Sea sample clearly behaved as a genetic outlier in the region. Its outstanding Eurasian haplogroup U3 frequency (39%) and its south-Saharan Africa lineages (19%) are the highest in the Middle East. On the contrary, the lack ((preHV)1) or comparatively low frequency (J and T) of Neolithic lineages is also striking. Although strong drift by geographic isolation could explain the anomalous mtDNA pool of the Dead Sea sample, the fact that its mtDNA lineage composition mirrors, in geographic origin and haplogroup frequencies, its Y-chromosome pool, points to founder effect as the main cause. Ancestral M1 lineages detected in Jordan that have affinities with those recently found in Northwest but not East Africa question the African origin of the M1 haplogroup. CONCLUSION Results are in agreement with an old human settlement in the Jordan region. However, in spite of the attested migratory spreads, genetically divergent populations, such as that of the Dead Sea, still exist in the area.
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Affiliation(s)
- Ana M González
- Departamento de Genética, Facultad de Biología, Universidad de La Laguna, Tenerife, Spain.
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Malyarchuk B, Grzybowski T, Derenko M, Perkova M, Vanecek T, Lazur J, Gomolcak P, Tsybovsky I. Mitochondrial DNA phylogeny in Eastern and Western Slavs. Mol Biol Evol 2008; 25:1651-8. [PMID: 18477584 DOI: 10.1093/molbev/msn114] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
To resolve the phylogeny of certain mitochondrial DNA (mtDNA) haplogroups in eastern Europe and estimate their evolutionary age, a total of 73 samples representing mitochondrial haplogroups U4, HV*, and R1 were selected for complete mitochondrial genome sequencing from a collection of about 2,000 control region sequences sampled in eastern (Russians, Belorussians, and Ukrainians) and western (Poles, Czechs, and Slovaks) Slavs. On the basis of whole-genome resolution, we fully characterized a number of haplogroups (HV3, HV4, U4a1, U4a2, U4a3, U4b, U4c, U4d, and R1a) that were previously described only partially. Our findings demonstrate that haplogroups HV3, HV4, and U4a1 could be traced back to the pre-Neolithic times ( approximately 12,000-19,000 years before present [YBP]) in eastern Europe. In addition, an ancient connection between the Caucasus/Europe and India has been revealed by analysis of haplogroup R1 diversity, with a split between the Indian and Caucasus/European R1a lineages occurring about 16,500 years ago. Meanwhile, some mtDNA subgroups detected in Slavs (such as U4a2a, U4a2*, HV3a, and R1a1) are definitely younger being dated between 6,400 and 8,200 YBP. However, robust age estimations appear to be problematic due to the high ratios of nonsynonymous to synonymous substitutions found in young mtDNA subclusters.
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Affiliation(s)
- B Malyarchuk
- Institute of Biological Problems of the North, Far-East Branch of the Russian Academy of Sciences, Magadan, Russia.
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Mitochondrial DNA structure in the Arabian Peninsula. BMC Evol Biol 2008; 8:45. [PMID: 18269758 PMCID: PMC2268671 DOI: 10.1186/1471-2148-8-45] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2007] [Accepted: 02/12/2008] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Two potential migratory routes followed by modern humans to colonize Eurasia from Africa have been proposed. These are the two natural passageways that connect both continents: the northern route through the Sinai Peninsula and the southern route across the Bab al Mandab strait. Recent archaeological and genetic evidence have favored a unique southern coastal route. Under this scenario, the study of the population genetic structure of the Arabian Peninsula, the first step out of Africa, to search for primary genetic links between Africa and Eurasia, is crucial. The haploid and maternally inherited mitochondrial DNA (mtDNA) molecule has been the most used genetic marker to identify and to relate lineages with clear geographic origins, as the African Ls and the Eurasian M and N that have a common root with the Africans L3. RESULTS To assess the role of the Arabian Peninsula in the southern route, we genetically analyzed 553 Saudi Arabs using partial (546) and complete mtDNA (7) sequencing, and compared the lineages obtained with those present in Africa, the Near East, central, east and southeast Asia and Australasia. The results showed that the Arabian Peninsula has received substantial gene flow from Africa (20%), detected by the presence of L, M1 and U6 lineages; that an 18% of the Arabian Peninsula lineages have a clear eastern provenance, mainly represented by U lineages; but also by Indian M lineages and rare M links with Central Asia, Indonesia and even Australia. However, the bulk (62%) of the Arabian lineages has a Northern source. CONCLUSION Although there is evidence of Neolithic and more recent expansions in the Arabian Peninsula, mainly detected by (preHV)1 and J1b lineages, the lack of primitive autochthonous M and N sequences, suggests that this area has been more a receptor of human migrations, including historic ones, from Africa, India, Indonesia and even Australia, than a demographic expansion center along the proposed southern coastal route.
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Abstract
Arabia has served as a strategic crossroads for human disseminations, providing a natural connection between the distant populations of China and India in the east to the western civilizations along the Mediterranean. To explore this region's critical role in the migratory episodes leaving Africa to Eurasia and back, high-resolution Y-chromosome analysis of males from the United Arab Emirates (164), Qatar (72) and Yemen (62) was performed. The role of the Levant in the Neolithic dispersal of the E3b1-M35 sublineages is supported by the data, and the distribution and STR-based analyses of J1-M267 representatives points to their spread from the north, most likely during the Neolithic. With the exception of Yemen, southern Arabia, South Iran and South Pakistan display high diversity in their Y-haplogroup substructure possibly a result of gene flow along the coastal crescent-shaped corridor of the Gulf of Oman facilitating human dispersals. Elevated rates of consanguinity may have had an impact in Yemen and Qatar, which experience significant heterozygote deficiencies at various hypervariable autosomal STR loci.
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