1
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Calò CM, Vona G, Robledo R, Francalacci P. From old markers to next generation: reconstructing the history of the peopling of Sardinia. Ann Hum Biol 2021; 48:203-212. [PMID: 34459339 DOI: 10.1080/03014460.2021.1944312] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
CONTEXT For many years the Sardinian population has been the object of numerous studies because of its unique genetic structure. Despite the extreme abundance of papers, various aspects of the peopling and genetic structure of Sardinia still remain uncertain and sometimes controversial. OBJECTIVE We reviewed what has emerged from different studies, focussing on some still open questions, such as the origin of Sardinians, their relationship with the Corsican population, and the intra-regional genetic heterogeneity. METHODS The various issues have been addressed through the analysis of classical markers, molecular markers and, finally, genomic data through next generation sequencing. RESULTS AND CONCLUSIONS Although the most ancient human remains date back to the end of the Palaeolithic, Mesolithic populations brought founding lineages that left evident traces in the modern population. Then, with the Neolithic, the island underwent an important demographic expansion. Subsequently, isolation and genetic drift contributed to maintain a significant genetic heterogeneity, but preserving the overall homogeneity on a regional scale. At the same time, isolation and genetic drift contributed to differentiate Sardinia from Corsica, which saw an important gene flow from the mainland. However, the isolation did not prevent gene flow from the neighbouring populations whose contribution are still recognisable in the genome of Sardinians.
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Affiliation(s)
- Carla Maria Calò
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Giuseppe Vona
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Renato Robledo
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Paolo Francalacci
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
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2
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Grugni V, Raveane A, Colombo G, Nici C, Crobu F, Ongaro L, Battaglia V, Sanna D, Al-Zahery N, Fiorani O, Lisa A, Ferretti L, Achilli A, Olivieri A, Francalacci P, Piazza A, Torroni A, Semino O. Y-chromosome and Surname Analyses for Reconstructing Past Population Structures: The Sardinian Population as a Test Case. Int J Mol Sci 2019; 20:E5763. [PMID: 31744094 PMCID: PMC6888588 DOI: 10.3390/ijms20225763] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/11/2019] [Accepted: 11/14/2019] [Indexed: 11/17/2022] Open
Abstract
Many anthropological, linguistic, genetic and genomic analyses have been carried out to evaluate the potential impact that evolutionary forces had in shaping the present-day Sardinian gene pool, the main outlier in the genetic landscape of Europe. However, due to the homogenizing effect of internal movements, which have intensified over the past fifty years, only partial information has been obtained about the main demographic events. To overcome this limitation, we analyzed the male-specific region of the Y chromosome in three population samples obtained by reallocating a large number of Sardinian subjects to the place of origin of their monophyletic surnames, which are paternally transmitted through generations in most of the populations, much like the Y chromosome. Three Y-chromosome founding lineages, G2-L91, I2-M26 and R1b-V88, were identified as strongly contributing to the definition of the outlying position of Sardinians in the European genetic context and marking a significant differentiation within the island. The present distribution of these lineages does not always mirror that detected in ancient DNAs. Our results show that the analysis of the Y-chromosome gene pool coupled with a sampling method based on the origin of the family name, is an efficient approach to unravelling past heterogeneity, often hidden by recent movements, in the gene pool of modern populations. Furthermore, the reconstruction and comparison of past genetic isolates represent a starting point to better assess the genetic information deriving from the increasing number of available ancient DNA samples.
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Affiliation(s)
- Viola Grugni
- Dipartimento di Biologia e Biotecnologie “L. Spallanzani”, Università di Pavia, 27100 Pavia, Italy; (V.G.); (A.R.); (G.C.); (C.N.); (F.C.); (L.O.); (V.B.); (D.S.); (N.A.-Z.); (L.F.); (A.A.); (A.O.); (A.T.)
| | - Alessandro Raveane
- Dipartimento di Biologia e Biotecnologie “L. Spallanzani”, Università di Pavia, 27100 Pavia, Italy; (V.G.); (A.R.); (G.C.); (C.N.); (F.C.); (L.O.); (V.B.); (D.S.); (N.A.-Z.); (L.F.); (A.A.); (A.O.); (A.T.)
| | - Giulia Colombo
- Dipartimento di Biologia e Biotecnologie “L. Spallanzani”, Università di Pavia, 27100 Pavia, Italy; (V.G.); (A.R.); (G.C.); (C.N.); (F.C.); (L.O.); (V.B.); (D.S.); (N.A.-Z.); (L.F.); (A.A.); (A.O.); (A.T.)
| | - Carmen Nici
- Dipartimento di Biologia e Biotecnologie “L. Spallanzani”, Università di Pavia, 27100 Pavia, Italy; (V.G.); (A.R.); (G.C.); (C.N.); (F.C.); (L.O.); (V.B.); (D.S.); (N.A.-Z.); (L.F.); (A.A.); (A.O.); (A.T.)
| | - Francesca Crobu
- Dipartimento di Biologia e Biotecnologie “L. Spallanzani”, Università di Pavia, 27100 Pavia, Italy; (V.G.); (A.R.); (G.C.); (C.N.); (F.C.); (L.O.); (V.B.); (D.S.); (N.A.-Z.); (L.F.); (A.A.); (A.O.); (A.T.)
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), 09042 Monserrato, Italy
| | - Linda Ongaro
- Dipartimento di Biologia e Biotecnologie “L. Spallanzani”, Università di Pavia, 27100 Pavia, Italy; (V.G.); (A.R.); (G.C.); (C.N.); (F.C.); (L.O.); (V.B.); (D.S.); (N.A.-Z.); (L.F.); (A.A.); (A.O.); (A.T.)
- Estonian Biocentre, Institute of Genomics, Riia 23, 51010 Tartu, Estonia
- Department of Evolutionary Biology, Institute of Molecular and Cell Biology, Riia 23, 51010 Tartu, Estonia
| | - Vincenza Battaglia
- Dipartimento di Biologia e Biotecnologie “L. Spallanzani”, Università di Pavia, 27100 Pavia, Italy; (V.G.); (A.R.); (G.C.); (C.N.); (F.C.); (L.O.); (V.B.); (D.S.); (N.A.-Z.); (L.F.); (A.A.); (A.O.); (A.T.)
| | - Daria Sanna
- Dipartimento di Biologia e Biotecnologie “L. Spallanzani”, Università di Pavia, 27100 Pavia, Italy; (V.G.); (A.R.); (G.C.); (C.N.); (F.C.); (L.O.); (V.B.); (D.S.); (N.A.-Z.); (L.F.); (A.A.); (A.O.); (A.T.)
- Dipartimento di Scienze Biomediche, Università di Sassari, 07100 Sassari, Italy
| | - Nadia Al-Zahery
- Dipartimento di Biologia e Biotecnologie “L. Spallanzani”, Università di Pavia, 27100 Pavia, Italy; (V.G.); (A.R.); (G.C.); (C.N.); (F.C.); (L.O.); (V.B.); (D.S.); (N.A.-Z.); (L.F.); (A.A.); (A.O.); (A.T.)
| | - Ornella Fiorani
- Istituto di Genetica Molecolare “L.L. Cavalli-Sforza”, Consiglio Nazionale delle Ricerche (CNR), 27100 Pavia, Italy; (O.F.); (A.L.)
| | - Antonella Lisa
- Istituto di Genetica Molecolare “L.L. Cavalli-Sforza”, Consiglio Nazionale delle Ricerche (CNR), 27100 Pavia, Italy; (O.F.); (A.L.)
| | - Luca Ferretti
- Dipartimento di Biologia e Biotecnologie “L. Spallanzani”, Università di Pavia, 27100 Pavia, Italy; (V.G.); (A.R.); (G.C.); (C.N.); (F.C.); (L.O.); (V.B.); (D.S.); (N.A.-Z.); (L.F.); (A.A.); (A.O.); (A.T.)
| | - Alessandro Achilli
- Dipartimento di Biologia e Biotecnologie “L. Spallanzani”, Università di Pavia, 27100 Pavia, Italy; (V.G.); (A.R.); (G.C.); (C.N.); (F.C.); (L.O.); (V.B.); (D.S.); (N.A.-Z.); (L.F.); (A.A.); (A.O.); (A.T.)
| | - Anna Olivieri
- Dipartimento di Biologia e Biotecnologie “L. Spallanzani”, Università di Pavia, 27100 Pavia, Italy; (V.G.); (A.R.); (G.C.); (C.N.); (F.C.); (L.O.); (V.B.); (D.S.); (N.A.-Z.); (L.F.); (A.A.); (A.O.); (A.T.)
| | - Paolo Francalacci
- Dipartimento di Scienza della Vita e dell’Ambiente, Università di Cagliari, 09123 Cagliari, Italy;
| | - Alberto Piazza
- Dipartimento di Scienze Mediche, Scuola di Medicina, Università di Torino, 10124 Torino, Italy;
| | - Antonio Torroni
- Dipartimento di Biologia e Biotecnologie “L. Spallanzani”, Università di Pavia, 27100 Pavia, Italy; (V.G.); (A.R.); (G.C.); (C.N.); (F.C.); (L.O.); (V.B.); (D.S.); (N.A.-Z.); (L.F.); (A.A.); (A.O.); (A.T.)
| | - Ornella Semino
- Dipartimento di Biologia e Biotecnologie “L. Spallanzani”, Università di Pavia, 27100 Pavia, Italy; (V.G.); (A.R.); (G.C.); (C.N.); (F.C.); (L.O.); (V.B.); (D.S.); (N.A.-Z.); (L.F.); (A.A.); (A.O.); (A.T.)
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3
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Melis M, Sollai G, Masala C, Pisanu C, Cossu G, Melis M, Sarchioto M, Oppo V, Morelli M, Crnjar R, Hummel T, Tomassini Barbarossa I. Odor Identification Performance in Idiopathic Parkinson’s Disease Is Associated With Gender and the Genetic Variability of the Olfactory Binding Protein. Chem Senses 2019; 44:311-318. [DOI: 10.1093/chemse/bjz020] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 04/02/2019] [Indexed: 11/14/2022] Open
Affiliation(s)
- Melania Melis
- Department of Biomedical Sciences, University of Cagliari, Monserrato, CA, Italy
| | - Giorgia Sollai
- Department of Biomedical Sciences, University of Cagliari, Monserrato, CA, Italy
| | - Carla Masala
- Department of Biomedical Sciences, University of Cagliari, Monserrato, CA, Italy
| | - Claudia Pisanu
- Department of Biomedical Sciences, University of Cagliari, Monserrato, CA, Italy
| | - Giovanni Cossu
- Neurology Service and Stroke Unit, A.O. Brotzu, Cagliari, Italy
| | - Marta Melis
- Neurology Service and Stroke Unit, A.O. Brotzu, Cagliari, Italy
| | | | - Valentina Oppo
- Neurology Service and Stroke Unit, A.O. Brotzu, Cagliari, Italy
| | - Micaela Morelli
- Department of Biomedical Sciences, University of Cagliari, Monserrato, CA, Italy
| | - Roberto Crnjar
- Department of Biomedical Sciences, University of Cagliari, Monserrato, CA, Italy
| | - Thomas Hummel
- Smell and Taste Clinic, Department of Otorhinolaryngology, University of Dresden Medical School, TU Dresden, Dresden, Germany
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4
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Larmuseau MHD, Ottoni C. Mediterranean Y-chromosome 2.0-why the Y in the Mediterranean is still relevant in the postgenomic era. Ann Hum Biol 2018; 45:20-33. [PMID: 29382278 DOI: 10.1080/03014460.2017.1402956] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
CONTEXT Due to its unique paternal inheritance, the Y-chromosome has been a highly popular marker among population geneticists for over two decades. Recently, the advent of cost-effective genome-wide methods has unlocked information-rich autosomal genomic data, paving the way to the postgenomic era. This seems to have announced the decreasing popularity of investigating Y-chromosome variation, which provides only the paternal perspective of human ancestries and is strongly influenced by genetic drift and social behaviour. OBJECTIVE For this special issue on population genetics of the Mediterranean, the aim was to demonstrate that the Y-chromosome still provides important insights in the postgenomic era and in a time when ancient genomes are becoming exponentially available. METHODS A systematic literature search on Y-chromosomal studies in the Mediterranean was performed. RESULTS Several applications of Y-chromosomal analysis with future opportunities are formulated and illustrated with studies on Mediterranean populations. CONCLUSIONS There will be no reduced interest in Y-chromosomal studies going from reconstruction of male-specific demographic events to ancient DNA applications, surname history and population-wide estimations of extra-pair paternity rates. Moreover, more initiatives are required to collect population genetic data of Y-chromosomal markers for forensic research, and to include Y-chromosomal data in GWAS investigations and studies on male infertility.
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Affiliation(s)
- Maarten H D Larmuseau
- a KU Leuven, Forensic Biomedical Sciences , Department of Imaging & Pathology , Leuven , Belgium.,b KU Leuven, Laboratory of Socioecology and Social Evolution , Department of Biology , Leuven , Belgium
| | - Claudio Ottoni
- c Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences , University of Oslo , Oslo , Norway
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5
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Prehistoric migrations through the Mediterranean basin shaped Corsican Y-chromosome diversity. PLoS One 2018; 13:e0200641. [PMID: 30067762 PMCID: PMC6070208 DOI: 10.1371/journal.pone.0200641] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 06/30/2018] [Indexed: 02/05/2023] Open
Abstract
The rarity of human remains makes it difficult to apprehend the first settlements in Corsica. It is admitted that initial colonization could have occurred during the Mesolithic period when glaciations would have shortened the open water travel distance from the continent. Mesolithic sites in Corsica show relatively short and irregular occupation, and suggest discontinuous settling of very mobile groups probably traveling by boat. Previous genetic studies on Corsican populations showed internal differentiation and a relatively poor genetic relationship with continental populations, despite intense historical contacts, however local Mesolithic-based genetic inheritance has never been properly estimated. The aim of this study was to explore the Corsican genetic profile of Y-chromosomes in order to trace the genetic signatures back to the first migrations to Corsica. This study included 321 samples from men throughout Corsica; samples from Provence and Tuscany were added to the cohort. All samples were typed for 92 Y-SNPs, and Y-STRs were also analyzed. Results revealed highly differentiated haplogroup patterns among Corsican populations. Haplogroup G had the highest frequency in Corsica, mostly displaying a unique Y-STR profile. When compared with Provence and Tuscany, Corsican populations displayed limited genetic proximity. Corsican populations present a remarkable Y-chromosome genetic mixture. Although the Corsican Y-chromosome profile shows similarities with both Provence and to a lesser extent Tuscany, it mainly displays its own specificity. This study confirms the high level of genetic diversity in Corsican populations and backs genetic contributions from prehistoric migrations associated with the Mesolithic, Neolithic and Metal Age eras, rather than from historical movements to Corsica, respectively attested by frequencies and TMRCA of haplogroups G2a-L91 and G2a-P15, J2a-M241 and J2-DYS445 = 6, R1b-U152 and R1b-U106. These results suggest that marine routes to reach the Corsican coast in many different points may have led to such a genetic heterogeneity.
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6
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D’Atanasio E, Trombetta B, Bonito M, Finocchio A, Di Vito G, Seghizzi M, Romano R, Russo G, Paganotti GM, Watson E, Coppa A, Anagnostou P, Dugoujon JM, Moral P, Sellitto D, Novelletto A, Cruciani F. The peopling of the last Green Sahara revealed by high-coverage resequencing of trans-Saharan patrilineages. Genome Biol 2018; 19:20. [PMID: 29433568 PMCID: PMC5809971 DOI: 10.1186/s13059-018-1393-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 01/19/2018] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Little is known about the peopling of the Sahara during the Holocene climatic optimum, when the desert was replaced by a fertile environment. RESULTS In order to investigate the role of the last Green Sahara in the peopling of Africa, we deep-sequence the whole non-repetitive portion of the Y chromosome in 104 males selected as representative of haplogroups which are currently found to the north and to the south of the Sahara. We identify 5,966 mutations, from which we extract 142 informative markers then genotyped in about 8,000 subjects from 145 African, Eurasian and African American populations. We find that the coalescence age of the trans-Saharan haplogroups dates back to the last Green Sahara, while most northern African or sub-Saharan clades expanded locally in the subsequent arid phase. CONCLUSIONS Our findings suggest that the Green Sahara promoted human movements and demographic expansions, possibly linked to the adoption of pastoralism. Comparing our results with previously reported genome-wide data, we also find evidence for a sex-biased sub-Saharan contribution to northern Africans, suggesting that historical events such as the trans-Saharan slave trade mainly contributed to the mtDNA and autosomal gene pool, whereas the northern African paternal gene pool was mainly shaped by more ancient events.
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Affiliation(s)
- Eugenia D’Atanasio
- Dipartimento di Biologia e Biotecnologie “C. Darwin”, Sapienza Università di Roma, Rome, Italy
- Istituto Pasteur-Fondazione Cenci Bolognetti, Sapienza Università di Roma, Rome, Italy
| | - Beniamino Trombetta
- Dipartimento di Biologia e Biotecnologie “C. Darwin”, Sapienza Università di Roma, Rome, Italy
| | - Maria Bonito
- Dipartimento di Biologia e Biotecnologie “C. Darwin”, Sapienza Università di Roma, Rome, Italy
| | - Andrea Finocchio
- Dipartimento di Biologia, Università di Roma “Tor Vergata”, Rome, Italy
| | - Genny Di Vito
- Dipartimento di Biologia e Biotecnologie “C. Darwin”, Sapienza Università di Roma, Rome, Italy
| | - Mara Seghizzi
- Dipartimento di Biologia e Biotecnologie “C. Darwin”, Sapienza Università di Roma, Rome, Italy
| | - Rita Romano
- Dipartimento di Sanità Pubblica e Malattie Infettive, Sapienza Università di Roma, Rome, Italy
| | - Gianluca Russo
- Dipartimento di Sanità Pubblica e Malattie Infettive, Sapienza Università di Roma, Rome, Italy
| | - Giacomo Maria Paganotti
- Botswana-University of Pennsylvania Partnership, Gaborone, Botswana
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA USA
| | | | - Alfredo Coppa
- Dipartimento di Biologia Ambientale, Sapienza Università di Roma, Rome, Italy
| | - Paolo Anagnostou
- Dipartimento di Biologia Ambientale, Sapienza Università di Roma, Rome, Italy
- Istituto Italiano di Antropologia, Rome, Italy
| | - Jean-Michel Dugoujon
- Centre National de la Recherche Scientifique (CNRS), Université Toulouse-3–Paul-Sabatier, Toulouse, France
| | - Pedro Moral
- Department of Animal Biology-Anthropology, Biodiversity Research Institute, University of Barcelona, Barcelona, Spain
| | | | - Andrea Novelletto
- Dipartimento di Biologia, Università di Roma “Tor Vergata”, Rome, Italy
| | - Fulvio Cruciani
- Dipartimento di Biologia e Biotecnologie “C. Darwin”, Sapienza Università di Roma, Rome, Italy
- Istituto di Biologia e Patologia Molecolari, CNR, Rome, Italy
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7
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Olivieri A, Sidore C, Achilli A, Angius A, Posth C, Furtwängler A, Brandini S, Capodiferro MR, Gandini F, Zoledziewska M, Pitzalis M, Maschio A, Busonero F, Lai L, Skeates R, Gradoli MG, Beckett J, Marongiu M, Mazzarello V, Marongiu P, Rubino S, Rito T, Macaulay V, Semino O, Pala M, Abecasis GR, Schlessinger D, Conde-Sousa E, Soares P, Richards MB, Cucca F, Torroni A. Mitogenome Diversity in Sardinians: A Genetic Window onto an Island's Past. Mol Biol Evol 2017; 34:1230-1239. [PMID: 28177087 PMCID: PMC5400395 DOI: 10.1093/molbev/msx082] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Sardinians are "outliers" in the European genetic landscape and, according to paleogenomic nuclear data, the closest to early European Neolithic farmers. To learn more about their genetic ancestry, we analyzed 3,491 modern and 21 ancient mitogenomes from Sardinia. We observed that 78.4% of modern mitogenomes cluster into 89 haplogroups that most likely arose in situ. For each Sardinian-specific haplogroup (SSH), we also identified the upstream node in the phylogeny, from which non-Sardinian mitogenomes radiate. This provided minimum and maximum time estimates for the presence of each SSH on the island. In agreement with demographic evidence, almost all SSHs coalesce in the post-Nuragic, Nuragic and Neolithic-Copper Age periods. For some rare SSHs, however, we could not dismiss the possibility that they might have been on the island prior to the Neolithic, a scenario that would be in agreement with archeological evidence of a Mesolithic occupation of Sardinia.
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Affiliation(s)
- Anna Olivieri
- Dipartimento di Biologia e Biotecnologie, Università di Pavia, Pavia, Italy
| | - Carlo Sidore
- Istituto di Ricerca Genetica e Biomedica (IRGB), CNR, Monserrato, Italy.,Center for Statistical Genetics, Department of Biostatistics, University of Michigan, Ann Arbor, MI.,Dipartimento di Scienze Biomediche, Università di Sassari, Sassari, Italy
| | - Alessandro Achilli
- Dipartimento di Biologia e Biotecnologie, Università di Pavia, Pavia, Italy
| | - Andrea Angius
- Istituto di Ricerca Genetica e Biomedica (IRGB), CNR, Monserrato, Italy.,Dipartimento di Scienze Biomediche, Università di Sassari, Sassari, Italy.,Center for Advanced Studies, Research and Development in Sardinia (CRS4), AGCT Program, Parco Scientifico e Tecnologico della Sardegna, Pula, Italy
| | - Cosimo Posth
- Max Planck Institute for the Science of Human History, Jena, Germany.,Institute for Archaeological Sciences, Archaeo- and Palaeogenetics, University of Tübingen, Tübingen, Germany
| | - Anja Furtwängler
- Institute for Archaeological Sciences, Archaeo- and Palaeogenetics, University of Tübingen, Tübingen, Germany
| | - Stefania Brandini
- Dipartimento di Biologia e Biotecnologie, Università di Pavia, Pavia, Italy
| | | | - Francesca Gandini
- Dipartimento di Biologia e Biotecnologie, Università di Pavia, Pavia, Italy.,Department of Biological Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield, Queensgate, United Kingdom
| | | | | | - Andrea Maschio
- Istituto di Ricerca Genetica e Biomedica (IRGB), CNR, Monserrato, Italy.,Center for Statistical Genetics, Department of Biostatistics, University of Michigan, Ann Arbor, MI
| | - Fabio Busonero
- Istituto di Ricerca Genetica e Biomedica (IRGB), CNR, Monserrato, Italy.,Center for Statistical Genetics, Department of Biostatistics, University of Michigan, Ann Arbor, MI
| | - Luca Lai
- Department of Anthropology, University of South Florida, Tampa, FL
| | - Robin Skeates
- Department of Archaeology, Durham University, Durham, United Kingdom
| | | | | | - Michele Marongiu
- Istituto di Ricerca Genetica e Biomedica (IRGB), CNR, Monserrato, Italy
| | | | - Patrizia Marongiu
- Dipartimento di Scienze Biomediche, Università di Sassari, Sassari, Italy
| | - Salvatore Rubino
- Dipartimento di Scienze Biomediche, Università di Sassari, Sassari, Italy
| | - Teresa Rito
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences & ICVS/3B's-PT Government Associate Laboratory, University of Minho, Braga, Portugal
| | - Vincent Macaulay
- School of Mathematics and Statistics, University of Glasgow, Glasgow, United Kingdom
| | - Ornella Semino
- Dipartimento di Biologia e Biotecnologie, Università di Pavia, Pavia, Italy
| | - Maria Pala
- Department of Biological Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield, Queensgate, United Kingdom
| | - Gonçalo R Abecasis
- Center for Statistical Genetics, Department of Biostatistics, University of Michigan, Ann Arbor, MI
| | - David Schlessinger
- Laboratory of Genetics, National Institute on Aging US National Institutes of Health, Baltimore, Maryland, MD
| | - Eduardo Conde-Sousa
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, Campus de Gualtar, Braga, Portugal
| | - Pedro Soares
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, Campus de Gualtar, Braga, Portugal
| | - Martin B Richards
- Department of Biological Sciences, School of Applied Sciences, University of Huddersfield, Huddersfield, Queensgate, United Kingdom
| | - Francesco Cucca
- Istituto di Ricerca Genetica e Biomedica (IRGB), CNR, Monserrato, Italy.,Dipartimento di Scienze Biomediche, Università di Sassari, Sassari, Italy
| | - Antonio Torroni
- Dipartimento di Biologia e Biotecnologie, Università di Pavia, Pavia, Italy
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8
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Masala C, Saba L, Cecchini MP, Solla P, Loy F. Olfactory Function and Age: a Sniffin’ Sticks Extended Test Study Performed in Sardinia. CHEMOSENS PERCEPT 2017. [DOI: 10.1007/s12078-017-9233-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Kivisild T. The study of human Y chromosome variation through ancient DNA. Hum Genet 2017; 136:529-546. [PMID: 28260210 PMCID: PMC5418327 DOI: 10.1007/s00439-017-1773-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 02/24/2017] [Indexed: 12/15/2022]
Abstract
High throughput sequencing methods have completely transformed the study of human Y chromosome variation by offering a genome-scale view on genetic variation retrieved from ancient human remains in context of a growing number of high coverage whole Y chromosome sequence data from living populations from across the world. The ancient Y chromosome sequences are providing us the first exciting glimpses into the past variation of male-specific compartment of the genome and the opportunity to evaluate models based on previously made inferences from patterns of genetic variation in living populations. Analyses of the ancient Y chromosome sequences are challenging not only because of issues generally related to ancient DNA work, such as DNA damage-induced mutations and low content of endogenous DNA in most human remains, but also because of specific properties of the Y chromosome, such as its highly repetitive nature and high homology with the X chromosome. Shotgun sequencing of uniquely mapping regions of the Y chromosomes to sufficiently high coverage is still challenging and costly in poorly preserved samples. To increase the coverage of specific target SNPs capture-based methods have been developed and used in recent years to generate Y chromosome sequence data from hundreds of prehistoric skeletal remains. Besides the prospects of testing directly as how much genetic change in a given time period has accompanied changes in material culture the sequencing of ancient Y chromosomes allows us also to better understand the rate at which mutations accumulate and get fixed over time. This review considers genome-scale evidence on ancient Y chromosome diversity that has recently started to accumulate in geographic areas favourable to DNA preservation. More specifically the review focuses on examples of regional continuity and change of the Y chromosome haplogroups in North Eurasia and in the New World.
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Affiliation(s)
- Toomas Kivisild
- Department of Archaeology and Anthropology, University of Cambridge, Cambridge, CB2 1QH, UK.
- Estonian Biocentre, 51010, Tartu, Estonia.
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Y chromosome palindromes and gene conversion. Hum Genet 2017; 136:605-619. [PMID: 28303348 DOI: 10.1007/s00439-017-1777-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 03/07/2017] [Indexed: 02/02/2023]
Abstract
The presence of large and near-identical inverted repeat sequences (called palindromes) is a common feature of the constitutively haploid sex chromosomes of different species. Despite the fact palindromes originated in a non-recombining context, they have evolved a strong recombinational activity in the form of abundant arm-to-arm gene conversion. Their independent appearance in different species suggests they can have a profound biological significance that has yet to be fully clarified. It has been theorized that natural selection may have favored palindromic organization of male-specific genes and that the establishment of intra-palindrome gene conversion has strong adaptive significance. Arm-to-arm gene conversion allows the efficient removal of deleterious mutations, increases the fixation rate of beneficial mutations and has played an important role in modulating the equilibrium between gene loss and acquisition during Y chromosome evolution. Additionally, a palindromic organization of duplicates could favor the formation of unusual chromatin structures and could optimize the use of gene conversion as a mechanism to maintain the structural integrity of male-specific genes. In this review, we describe the structural features of palindromes on mammalian sex chromosomes and summarize different hypotheses regarding palindrome evolution and the functional benefits of arm-to-arm gene conversion on the unique haploid portion of the nuclear genome.
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Investigation of extended Y chromosome STR haplotypes in Sardinia. Forensic Sci Int Genet 2017; 27:172-174. [DOI: 10.1016/j.fsigen.2016.12.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 12/07/2016] [Accepted: 12/23/2016] [Indexed: 11/24/2022]
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