151
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Chang D, Shapiro B. Using ancient DNA and coalescent-based methods to infer extinction. Biol Lett 2016; 12:20150822. [PMID: 26864783 DOI: 10.1098/rsbl.2015.0822] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
DNA sequences extracted from preserved remains can add considerable resolution to inference of past population dynamics. For example, coalescent-based methods have been used to correlate declines in some arctic megafauna populations with habitat fragmentation during the last ice age. These methods, however, often fail to detect population declines preceding extinction, most likely owing to a combination of sparse sampling, uninformative genetic markers, and models that cannot account for the increasingly structured nature of populations as habitats decline. As ancient DNA research expands to include full-genome analyses, these data will provide greater resolution of the genomic consequences of environmental change and the genetic signatures of extinction.
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Affiliation(s)
- Dan Chang
- Department of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA 95064, USA
| | - Beth Shapiro
- Department of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA 95064, USA
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152
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Affiliation(s)
- Douglas J. Richmond
- Section for Evolutionary Genomics Natural History Museum of Denmark University of Copenhagen Øster Voldgade 5–7 1350 Copenhagen Denmark
| | - Mikkel‐Holger S. Sinding
- Section for Evolutionary Genomics Natural History Museum of Denmark University of Copenhagen Øster Voldgade 5–7 1350 Copenhagen Denmark
- Natural History Museum University of Oslo P.O. Box 1172 Blindern NO‐0318 Oslo Norway
| | - M. Thomas P. Gilbert
- Section for Evolutionary Genomics Natural History Museum of Denmark University of Copenhagen Øster Voldgade 5–7 1350 Copenhagen Denmark
- Trace and Environmental DNA Laboratory Department of Environment and Agriculture Curtin University Perth WA 6102 Australia
- NTNU University Museum NO‐7491 Trondheim Norway
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153
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Cruz-Dávalos DI, Llamas B, Gaunitz C, Fages A, Gamba C, Soubrier J, Librado P, Seguin-Orlando A, Pruvost M, Alfarhan AH, Alquraishi SA, Al-Rasheid KAS, Scheu A, Beneke N, Ludwig A, Cooper A, Willerslev E, Orlando L. Experimental conditions improving in-solution target enrichment for ancient DNA. Mol Ecol Resour 2016; 17:508-522. [PMID: 27566552 DOI: 10.1111/1755-0998.12595] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 07/29/2016] [Accepted: 08/05/2016] [Indexed: 11/30/2022]
Abstract
High-throughput sequencing has dramatically fostered ancient DNA research in recent years. Shotgun sequencing, however, does not necessarily appear as the best-suited approach due to the extensive contamination of samples with exogenous environmental microbial DNA. DNA capture-enrichment methods represent cost-effective alternatives that increase the sequencing focus on the endogenous fraction, whether it is from mitochondrial or nuclear genomes, or parts thereof. Here, we explored experimental parameters that could impact the efficacy of MYbaits in-solution capture assays of ~5000 nuclear loci or the whole genome. We found that varying quantities of the starting probes had only moderate effect on capture outcomes. Starting DNA, probe tiling, the hybridization temperature and the proportion of endogenous DNA all affected the assay, however. Additionally, probe features such as their GC content, number of CpG dinucleotides, sequence complexity and entropy and self-annealing properties need to be carefully addressed during the design stage of the capture assay. The experimental conditions and probe molecular features identified in this study will improve the recovery of genetic information extracted from degraded and ancient remains.
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Affiliation(s)
- Diana I Cruz-Dávalos
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, 1350K, Copenhagen, Denmark.,Undergraduate Program on Genomic Sciences, Universidad Nacional Autónoma de México, Av. Universidad s/n, 62210, Cuernavaca, Mexico
| | - Bastien Llamas
- Australian Centre for Ancient DNA, School of Biological Sciences, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Charleen Gaunitz
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, 1350K, Copenhagen, Denmark
| | - Antoine Fages
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, 1350K, Copenhagen, Denmark.,Laboratoire d'Anthropobiologie Moléculaire et d'Imagerie de Synthèse, CNRS UMR 5288, Université de Toulouse, University Paul Sabatier, 31000, Toulouse, France
| | - Cristina Gamba
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, 1350K, Copenhagen, Denmark
| | - Julien Soubrier
- Australian Centre for Ancient DNA, School of Biological Sciences, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Pablo Librado
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, 1350K, Copenhagen, Denmark
| | - Andaine Seguin-Orlando
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, 1350K, Copenhagen, Denmark.,National High-Throughput DNA Sequencing Center, University of Copenhagen, Øster Farimagsgade 2D, 1353K, Copenhagen, Denmark
| | - Mélanie Pruvost
- Institut Jacques Monod, UMR7592 CNRS, Université Paris 7, 75205, Paris cédex 13, France
| | - Ahmed H Alfarhan
- Zoology Department, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Saleh A Alquraishi
- Zoology Department, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Khaled A S Al-Rasheid
- Zoology Department, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Amelie Scheu
- Palaeogenetics Group, Johannes Gutenberg-University, Anselm-Franz-von-Bentzel-Weg 7, 55099, Mainz, Germany.,Smurfit Institute of Genetics, Trinity College Dublin, Dublin, 2, Ireland
| | - Norbert Beneke
- Naturwissenschaftliches Referat an der Zentrale, Deutsches Archäologisches Institut, Im Dol 2-6, 14195, Berlin, Germany
| | - Arne Ludwig
- Department of Evolutionary Genetics, Leibniz Institute for Zoo and Wildlife Research, 10315, Berlin, Germany
| | - Alan Cooper
- Australian Centre for Ancient DNA, School of Biological Sciences, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Eske Willerslev
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, 1350K, Copenhagen, Denmark
| | - Ludovic Orlando
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, 1350K, Copenhagen, Denmark.,Laboratoire d'Anthropobiologie Moléculaire et d'Imagerie de Synthèse, CNRS UMR 5288, Université de Toulouse, University Paul Sabatier, 31000, Toulouse, France
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154
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Liu S, Hansen MM, Jacobsen MW. Region-wide and ecotype-specific differences in demographic histories of threespine stickleback populations, estimated from whole genome sequences. Mol Ecol 2016; 25:5187-5202. [PMID: 27569902 DOI: 10.1111/mec.13827] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 08/18/2016] [Accepted: 08/22/2016] [Indexed: 02/04/2023]
Abstract
We analysed 81 whole genome sequences of threespine sticklebacks from Pacific North America, Greenland and Northern Europe, representing 16 populations. Principal component analysis of nuclear SNPs grouped populations according to geographical location, with Pacific populations being more divergent from each other relative to European and Greenlandic populations. Analysis of mitogenome sequences showed Northern European populations to represent a single phylogeographical lineage, whereas Greenlandic and particularly Pacific populations showed admixture between lineages. We estimated demographic history using a genomewide coalescence with recombination approach. The Pacific populations showed gradual population expansion starting >100 Kya, possibly reflecting persistence in cryptic refuges near the present distributional range, although we do not rule out possible influence of ancient admixture. Sharp population declines ca. 14-15 Kya were suggested to reflect founding of freshwater populations by marine ancestors. In Greenland and Northern Europe, demographic expansion started ca. 20-25 Kya coinciding with the end of the Last Glacial Maximum. In both regions, marine and freshwater populations started to show different demographic trajectories ca. 8-9 Kya, suggesting that this was the time of recolonization. In Northern Europe, this estimate was surprisingly late, but found support in subfossil evidence for presence of several freshwater fish species but not sticklebacks 12 Kya. The results demonstrate distinctly different demographic histories across geographical regions with potential consequences for adaptive processes. They also provide empirical support for previous assumptions about freshwater populations being founded independently from large, coherent marine populations, a key element in the Transporter Hypothesis invoked to explain the widespread occurrence of parallel evolution across freshwater stickleback populations.
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Affiliation(s)
- Shenglin Liu
- Department of Bioscience, Aarhus University, Ny Munkegade 114, DK-8000, Aarhus C, Denmark
| | - Michael M Hansen
- Department of Bioscience, Aarhus University, Ny Munkegade 114, DK-8000, Aarhus C, Denmark.
| | - Magnus W Jacobsen
- Department of Bioscience, Aarhus University, Ny Munkegade 114, DK-8000, Aarhus C, Denmark
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155
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Hanghøj K, Seguin-Orlando A, Schubert M, Madsen T, Pedersen JS, Willerslev E, Orlando L. Fast, Accurate and Automatic Ancient Nucleosome and Methylation Maps with epiPALEOMIX. Mol Biol Evol 2016; 33:3284-3298. [PMID: 27624717 PMCID: PMC5100044 DOI: 10.1093/molbev/msw184] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The first epigenomes from archaic hominins (AH) and ancient anatomically modern humans (AMH) have recently been characterized, based, however, on a limited number of samples. The extent to which ancient genome-wide epigenetic landscapes can be reconstructed thus remains contentious. Here, we present epiPALEOMIX, an open-source and user-friendly pipeline that exploits post-mortem DNA degradation patterns to reconstruct ancient methylomes and nucleosome maps from shotgun and/or capture-enrichment data. Applying epiPALEOMIX to the sequence data underlying 35 ancient genomes including AMH, AH, equids and aurochs, we investigate the temporal, geographical and preservation range of ancient epigenetic signatures. We first assess the quality of inferred ancient epigenetic signatures within well-characterized genomic regions. We find that tissue-specific methylation signatures can be obtained across a wider range of DNA preparation types than previously thought, including when no particular experimental procedures have been used to remove deaminated cytosines prior to sequencing. We identify a large subset of samples for which DNA associated with nucleosomes is protected from post-mortem degradation, and nucleosome positioning patterns can be reconstructed. Finally, we describe parameters and conditions such as DNA damage levels and sequencing depth that limit the preservation of epigenetic signatures in ancient samples. When such conditions are met, we propose that epigenetic profiles of CTCF binding regions can be used to help data authentication. Our work, including epiPALEOMIX, opens for further investigations of ancient epigenomes through time especially aimed at tracking possible epigenetic changes during major evolutionary, environmental, socioeconomic, and cultural shifts.
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Affiliation(s)
- Kristian Hanghøj
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark.,Laboratoire d'Anthropobiologie Moléculaire et d'Imagerie de Synthèse, Université de Toulouse, University Paul Sabatier, Toulouse, France
| | - Andaine Seguin-Orlando
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark.,Danish National High-Throughput DNA Sequencing Center, Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark
| | - Mikkel Schubert
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark
| | - Tobias Madsen
- Department of Molecular Medicine (MOMA), Aarhus University Hospital, Aarhus, Denmark.,Bioinformatics Research Centre (BiRC), Aarhus University, Aarhus, Denmark
| | - Jakob Skou Pedersen
- Department of Molecular Medicine (MOMA), Aarhus University Hospital, Aarhus, Denmark.,Bioinformatics Research Centre (BiRC), Aarhus University, Aarhus, Denmark
| | - Eske Willerslev
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark.,Department of Zoology, University of Cambridge, Cambridge, United Kingdom.,Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom
| | - Ludovic Orlando
- Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark .,Laboratoire d'Anthropobiologie Moléculaire et d'Imagerie de Synthèse, Université de Toulouse, University Paul Sabatier, Toulouse, France
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156
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Shapiro B. Pathways to de‐extinction: how close can we get to resurrection of an extinct species? Funct Ecol 2016. [DOI: 10.1111/1365-2435.12705] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Beth Shapiro
- Department of Ecology and Evolutionary Biology and UCSC Genomics Institute University of California Santa Cruz 1156 High Street Santa Cruz CA95064 USA
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157
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Mohandesan E, Speller CF, Peters J, Uerpmann HP, Uerpmann M, De Cupere B, Hofreiter M, Burger PA. Combined hybridization capture and shotgun sequencing for ancient DNA analysis of extinct wild and domestic dromedary camel. Mol Ecol Resour 2016; 17:300-313. [PMID: 27289015 PMCID: PMC5324683 DOI: 10.1111/1755-0998.12551] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 04/28/2016] [Accepted: 05/06/2016] [Indexed: 12/29/2022]
Abstract
The performance of hybridization capture combined with next‐generation sequencing (NGS) has seen limited investigation with samples from hot and arid regions until now. We applied hybridization capture and shotgun sequencing to recover DNA sequences from bone specimens of ancient‐domestic dromedary (Camelus dromedarius) and its extinct ancestor, the wild dromedary from Jordan, Syria, Turkey and the Arabian Peninsula, respectively. Our results show that hybridization capture increased the percentage of mitochondrial DNA (mtDNA) recovery by an average 187‐fold and in some cases yielded virtually complete mitochondrial (mt) genomes at multifold coverage in a single capture experiment. Furthermore, we tested the effect of hybridization temperature and time by using a touchdown approach on a limited number of samples. We observed no significant difference in the number of unique dromedary mtDNA reads retrieved with the standard capture compared to the touchdown method. In total, we obtained 14 partial mitochondrial genomes from ancient‐domestic dromedaries with 17–95% length coverage and 1.27–47.1‐fold read depths for the covered regions. Using whole‐genome shotgun sequencing, we successfully recovered endogenous dromedary nuclear DNA (nuDNA) from domestic and wild dromedary specimens with 1–1.06‐fold read depths for covered regions. Our results highlight that despite recent methodological advances, obtaining ancient DNA (aDNA) from specimens recovered from hot, arid environments is still problematic. Hybridization protocols require specific optimization, and samples at the limit of DNA preservation need multiple replications of DNA extraction and hybridization capture as has been shown previously for Middle Pleistocene specimens.
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Affiliation(s)
- Elmira Mohandesan
- Research Institute of Wildlife Ecology, Vetmeduni Vienna, Savoyenstraße 1, 1160, Vienna, Austria.,Institute of Population Genetics, Vetmeduni Vienna, Veterinärplatz 1, 1210, Vienna, Austria
| | - Camilla F Speller
- BioArCh, Department of Archaeology, University of York, Wentworth Way, York, YO10 5DD, UK
| | - Joris Peters
- Department of Veterinary Sciences, Institute of Palaeoanatomy, Domestication Research and the History of Veterinary Medicine, Ludwig-Maximilians-Universität München (LMU Munich), 80539, Munich, Germany.,Staatliche Naturwissenschaftliche Sammlungen Bayerns, Bavarian State Collection of Anthropology and Palaeoanatomy, 80333, Munich, Germany
| | - Hans-Peter Uerpmann
- Abteilung Archäozoologie, Institut für Naturwissenschaftliche Archäologie, Eberhard-Karls-Universität Tübingen, Rümelinstrasse 23, 7207, Tübingen, Germany
| | - Margarethe Uerpmann
- Staatliche Naturwissenschaftliche Sammlungen Bayerns, Bavarian State Collection of Anthropology and Palaeoanatomy, 80333, Munich, Germany
| | - Bea De Cupere
- Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B-1000, Brussels, Belgium
| | - Michael Hofreiter
- BioArCh, Department of Archaeology, University of York, Wentworth Way, York, YO10 5DD, UK.,Evolutionary and Adaptive Genomics, Department of Mathematics and Natural Sciences, Institute for Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Street 24-25, Potsdam, 14476, Germany
| | - Pamela A Burger
- Research Institute of Wildlife Ecology, Vetmeduni Vienna, Savoyenstraße 1, 1160, Vienna, Austria
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158
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Ho SYW, Duchêne S, Molak M, Shapiro B. Time-dependent estimates of molecular evolutionary rates: evidence and causes. Mol Ecol 2016; 24:6007-12. [PMID: 26769402 DOI: 10.1111/mec.13450] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Revised: 06/30/2015] [Accepted: 07/17/2015] [Indexed: 12/28/2022]
Abstract
We are writing in response to a recent critique by Emerson & Hickerson (2015), who challenge the evidence of a time-dependent bias in molecular rate estimates. This bias takes the form of a negative relationship between inferred evolutionary rates and the ages of the calibrations on which these estimates are based. Here, we present a summary of the evidence obtained from a broad range of taxa that supports a time-dependent bias in rate estimates, with a consideration of the potential causes of these observed trends. We also describe recent progress in improving the reliability of evolutionary rate estimation and respond to the concerns raised by Emerson & Hickerson (2015) about the validity of rates estimated from time-structured sequence data. In doing so, we hope to dispel some misconceptions and to highlight several research directions that will improve our understanding of time-dependent biases in rate estimates.
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Affiliation(s)
- Simon Y W Ho
- School of Biological Sciences, University of Sydney, Sydney, NSW, Australia
| | - Sebastián Duchêne
- School of Biological Sciences, University of Sydney, Sydney, NSW, Australia
| | - Martyna Molak
- Museum and Institute of Zoology, Polish Academy of Sciences, Warsaw, Poland
| | - Beth Shapiro
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, California, USA.,UCSC Genomics Institute, University of California, Santa Cruz, California, USA
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159
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Schaefer NK, Shapiro B, Green RE. Detecting hybridization using ancient DNA. Mol Ecol 2016; 25:2398-412. [PMID: 26826668 PMCID: PMC5063030 DOI: 10.1111/mec.13556] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 01/06/2016] [Indexed: 01/18/2023]
Abstract
It is well established that related species hybridize and that this can have varied but significant effects on speciation and environmental adaptation. It should therefore come as no surprise that hybridization is not limited to species that are alive today. In the last several decades, advances in technologies for recovering and sequencing DNA from fossil remains have enabled the assembly of high-coverage genome sequences for a growing diversity of organisms, including many that are extinct. Thanks to the development of new statistical approaches for detecting and quantifying admixture from genomic data, genomes from extinct populations have proven useful both in revealing previously unknown hybridization events and informing the study of hybridization between living organisms. Here, we review some of the key recent statistical innovations for detecting ancient hybridization using genomewide sequence data and discuss how these innovations have revised our understanding of human evolutionary history.
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Affiliation(s)
- Nathan K. Schaefer
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA 95064 USA
- UCSC Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95064 USA
| | - Beth Shapiro
- UCSC Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95064 USA
- Department of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA 95064 USA
| | - Richard E. Green
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA 95064 USA
- UCSC Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95064 USA
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160
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Pečnerová P, Díez-del-Molino D, Vartanyan S, Dalén L. Changes in variation at the MHC class II DQA locus during the final demise of the woolly mammoth. Sci Rep 2016; 6:25274. [PMID: 27143688 PMCID: PMC4855147 DOI: 10.1038/srep25274] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 04/13/2016] [Indexed: 12/28/2022] Open
Abstract
According to the nearly-neutral theory of evolution, the relative strengths of selection and drift shift in favour of drift at small population sizes. Numerous studies have analysed the effect of bottlenecks and small population sizes on genetic diversity in the MHC, which plays a central role in pathogen recognition and immune defense and is thus considered a model example for the study of adaptive evolution. However, to understand changes in genetic diversity at loci under selection, it is necessary to compare the genetic diversity of a population before and after the bottleneck. In this study, we analyse three fragments of the MHC DQA gene in woolly mammoth samples radiocarbon dated to before and after a well-documented bottleneck that took place about ten thousand years ago. Our results indicate a decrease in observed heterozygosity and number of alleles, suggesting that genetic drift had an impact on the variation on MHC. Based on coalescent simulations, we found no evidence of balancing selection maintaining MHC diversity during the Holocene. However, strong trans-species polymorphism among mammoths and elephants points to historical effects of balancing selection on the woolly mammoth lineage.
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Affiliation(s)
- Patrícia Pečnerová
- Department of Bioinformatics and Genetics, Swedish Museum of Natural History, SE-10405 Stockholm, Sweden
- Department of Zoology, Stockholm University, SE-10691 Stockholm, Sweden
| | - David Díez-del-Molino
- Department of Bioinformatics and Genetics, Swedish Museum of Natural History, SE-10405 Stockholm, Sweden
| | - Sergey Vartanyan
- North-East Interdisciplinary Scientific Research Institute N.A.N.A. Shilo, Far East Branch, Russian Academy of Sciences (NEISRI FEB RAS), Magadan, Russia
| | - Love Dalén
- Department of Bioinformatics and Genetics, Swedish Museum of Natural History, SE-10405 Stockholm, Sweden
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161
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Gokhman D, Meshorer E, Carmel L. Epigenetics: It's Getting Old. Past Meets Future in Paleoepigenetics. Trends Ecol Evol 2016; 31:290-300. [DOI: 10.1016/j.tree.2016.01.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Revised: 01/18/2016] [Accepted: 01/19/2016] [Indexed: 01/08/2023]
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162
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Raghanti MA, Todd N, Hof PR. Probing the proboscidea: Lessons from the past. J Comp Neurol 2015; 523:2321-5. [PMID: 26184071 DOI: 10.1002/cne.23824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 06/11/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Mary Ann Raghanti
- Department of Anthropology and School of Biomedical Sciences, Kent State University, Kent, Ohio, 44242
| | - Nancy Todd
- Biology and Environmental Studies, Manhattanville College, Purchase, New York, 10577
| | - Patrick R Hof
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, 10029.,New York Consortium in Evolutionary Primatology, New York, New York, 10029
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163
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Park SDE, Magee DA, McGettigan PA, Teasdale MD, Edwards CJ, Lohan AJ, Murphy A, Braud M, Donoghue MT, Liu Y, Chamberlain AT, Rue-Albrecht K, Schroeder S, Spillane C, Tai S, Bradley DG, Sonstegard TS, Loftus BJ, MacHugh DE. Genome sequencing of the extinct Eurasian wild aurochs, Bos primigenius, illuminates the phylogeography and evolution of cattle. Genome Biol 2015; 16:234. [PMID: 26498365 PMCID: PMC4620651 DOI: 10.1186/s13059-015-0790-2] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Accepted: 09/25/2015] [Indexed: 11/10/2022] Open
Abstract
Background Domestication of the now-extinct wild aurochs, Bos primigenius, gave rise to the two major domestic extant cattle taxa, B. taurus and B. indicus. While previous genetic studies have shed some light on the evolutionary relationships between European aurochs and modern cattle, important questions remain unanswered, including the phylogenetic status of aurochs, whether gene flow from aurochs into early domestic populations occurred, and which genomic regions were subject to selection processes during and after domestication. Here, we address these questions using whole-genome sequencing data generated from an approximately 6,750-year-old British aurochs bone and genome sequence data from 81 additional cattle plus genome-wide single nucleotide polymorphism data from a diverse panel of 1,225 modern animals. Results Phylogenomic analyses place the aurochs as a distinct outgroup to the domestic B. taurus lineage, supporting the predominant Near Eastern origin of European cattle. Conversely, traditional British and Irish breeds share more genetic variants with this aurochs specimen than other European populations, supporting localized gene flow from aurochs into the ancestors of modern British and Irish cattle, perhaps through purposeful restocking by early herders in Britain. Finally, the functions of genes showing evidence for positive selection in B. taurus are enriched for neurobiology, growth, metabolism and immunobiology, suggesting that these biological processes have been important in the domestication of cattle. Conclusions This work provides important new information regarding the origins and functional evolution of modern cattle, revealing that the interface between early European domestic populations and wild aurochs was significantly more complex than previously thought. Electronic supplementary material The online version of this article (doi:10.1186/s13059-015-0790-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Stephen D E Park
- IdentiGEN Ltd, Unit 2, Trinity Enterprise Centre, Pearse Street, Dublin 2, Ireland.
| | - David A Magee
- Animal Genomics Laboratory, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland. .,Department of Animal Science, University of Connecticut, Storrs, CT, 06029, USA.
| | - Paul A McGettigan
- Animal Genomics Laboratory, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland.
| | | | - Ceiridwen J Edwards
- Research Laboratory for Archaeology and the History of Art, Dyson Perrins Building, South Parks Rd, Oxford, OX1 3QY, UK.
| | - Amanda J Lohan
- UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin 4, Ireland.
| | - Alison Murphy
- UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin 4, Ireland.
| | - Martin Braud
- Genetics and Biotechnology Laboratory, Plant and AgriBiosciences Research Centre (PABC), School of Natural Sciences, National University of Ireland Galway, University Road, Galway, Ireland.
| | - Mark T Donoghue
- Genetics and Biotechnology Laboratory, Plant and AgriBiosciences Research Centre (PABC), School of Natural Sciences, National University of Ireland Galway, University Road, Galway, Ireland.
| | - Yuan Liu
- BGI Shenzhen, Beishan Industrial Zone, Yantian District, Shenzhen, 518083, China.
| | - Andrew T Chamberlain
- Faculty of Life Sciences, University of Manchester, Oxford Road, Manchester, M13 9PT, UK.
| | - Kévin Rue-Albrecht
- Animal Genomics Laboratory, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Steven Schroeder
- Animal Genomics and Improvement Laboratory, Agricultural Research Service, USDA, Beltsville, MD, 20705-2350, USA.
| | - Charles Spillane
- Genetics and Biotechnology Laboratory, Plant and AgriBiosciences Research Centre (PABC), School of Natural Sciences, National University of Ireland Galway, University Road, Galway, Ireland.
| | - Shuaishuai Tai
- BGI Shenzhen, Beishan Industrial Zone, Yantian District, Shenzhen, 518083, China.
| | - Daniel G Bradley
- Smurfit Institute of Genetics, Trinity College, Dublin 2, Ireland.
| | - Tad S Sonstegard
- Animal Genomics and Improvement Laboratory, Agricultural Research Service, USDA, Beltsville, MD, 20705-2350, USA. .,Recombinetics Inc., St. Paul, MN, 55104, USA.
| | - Brendan J Loftus
- UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin 4, Ireland. .,UCD School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland.
| | - David E MacHugh
- Animal Genomics Laboratory, UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland. .,UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin 4, Ireland.
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164
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Abstract
Clovis groups in Late Pleistocene North America occasionally hunted several now extinct large mammals. But whether their hunting drove 37 genera of animals to extinction has been disputed, largely for want of kill sites. Overkill proponents argue that there is more archaeological evidence than we ought to expect, that humans had the wherewithal to decimate what may have been millions of animals, and that the appearance of humans and the disappearance of the fauna is too striking to be a mere coincidence. Yet, there is less to these claims than meets the eye. Moreover, extinctions took place amid sweeping climatic and environmental changes as the Pleistocene came to an end. It has long been difficult to link those changes to mammalian extinctions, but the advent of ancient DNA, coupled with high-resolution paleoecological, radiocarbon, and archeological records, should help disentangle the relative role of changing climates and people in mammalian extinctions.
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Affiliation(s)
- David J. Meltzer
- Department of Anthropology, Southern Methodist University, Dallas, Texas 75275
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165
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Gamba C, Hanghøj K, Gaunitz C, Alfarhan AH, Alquraishi SA, Al-Rasheid KAS, Bradley DANIELG, Orlando L. Comparing the performance of three ancient DNA extraction methods for high-throughput sequencing. Mol Ecol Resour 2015; 16:459-69. [DOI: 10.1111/1755-0998.12470] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 09/17/2015] [Accepted: 09/20/2015] [Indexed: 01/22/2023]
Affiliation(s)
- Cristina Gamba
- Centre for GeoGenetics; Natural History Museum of Denmark; Øster Voldgade 5-7 1350K Copenhagen Denmark
| | - Kristian Hanghøj
- Centre for GeoGenetics; Natural History Museum of Denmark; Øster Voldgade 5-7 1350K Copenhagen Denmark
| | - Charleen Gaunitz
- Centre for GeoGenetics; Natural History Museum of Denmark; Øster Voldgade 5-7 1350K Copenhagen Denmark
| | - Ahmed H. Alfarhan
- Zoology Department; College of Science; King Saud University; Riyadh 11451 Saudi Arabia
| | - Saleh A. Alquraishi
- Zoology Department; College of Science; King Saud University; Riyadh 11451 Saudi Arabia
| | | | - DANIEL G. Bradley
- Smurfit Institute of Genetics; Trinity College Dublin; College Green, Dublin 2 Ireland
| | - Ludovic Orlando
- Centre for GeoGenetics; Natural History Museum of Denmark; Øster Voldgade 5-7 1350K Copenhagen Denmark
- Université de Toulouse; CNRS UMR 5288; Université Paul Sabatier (UPS); 37 allées Jules Guesde 31000 Toulouse France
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166
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Campbell K, Hofreiter M. Resurrecting phenotypes from ancient DNA sequences: promises and perspectives. CAN J ZOOL 2015. [DOI: 10.1139/cjz-2014-0337] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Anatomical changes in extinct mammalian lineages over evolutionary time, such as the loss of fingers and teeth and the rapid increase in body size that accompanied the late Miocene dispersal of the progenitors of Steller’s sea cows (Hydrodamalis gigas (Zimmermann, 1780)) into North Pacific waters and the convergent development of a thick pelage and accompanying reductions in ear and tail surface area of woolly mammoths (Mammuthus primigenius (Blumenbach, 1799)) and woolly rhinoceros (Coelodonta antiquitatis (Blumenbach, 1799)), are prime examples of adaptive evolution underlying the exploitation of new habitats. It is likely, however, that biochemical specializations adopted during these evolutionary transitions were of similar or even greater biological importance. As these “living” processes do not fossilize, direct information regarding the physiological attributes of extinct species has largely remained beyond the range of scientific inquiry. However, the ability to retrieve genomic sequences from ancient DNA samples, combined with ectopic expression systems, now permit the evolutionary origins and structural and functional properties of authentic prehistoric proteins to be examined in great detail. Exponential technical advances in ancient DNA retrieval, enrichment, and sequencing will soon permit targeted generation of complete genomes from hundreds of extinct species across the last one million years that, in combination with emerging in vitro expression, genome engineering, and cell differentiation techniques, promises to herald an exciting new trajectory of evolutionary research at the interface of biochemistry, genomics, palaeontology, and cell biology.
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Affiliation(s)
- K.L. Campbell
- Department of Biological Sciences, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - M. Hofreiter
- Faculty of Mathematics and Life Sciences, Institute of Biochemistry and Biology, Unit of General Zoology–Evolutionary Adaptive Genomics, University of Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam, Germany
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167
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Resurrection. Cell 2015. [DOI: 10.1016/j.cell.2015.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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168
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Abstract
The genomes of two woolly mammoths have been sequenced. One of the last survivors had reduced genetic diversity. Although divergent in their mitochondrial genomes, the mammoths had similar nuclear genomes, a finding germane to elephant conservation.
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