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  • 1
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    Proportionally more deleterious genetic variation in European than in African populations (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-02-22
    Description: Quantifying the number of deleterious mutations per diploid human genome is of crucial concern to both evolutionary and medical geneticists. Here we combine genome-wide polymorphism data from PCR-based exon resequencing, comparative genomic data across mammalian species, and protein structure predictions to estimate the number of functionally consequential single-nucleotide polymorphisms (SNPs) carried by each of 15 African American (AA) and 20 European American (EA) individuals. We find that AAs show significantly higher levels of nucleotide heterozygosity than do EAs for all categories of functional SNPs considered, including synonymous, non-synonymous, predicted 'benign', predicted 'possibly damaging' and predicted 'probably damaging' SNPs. This result is wholly consistent with previous work showing higher overall levels of nucleotide variation in African populations than in Europeans. EA individuals, in contrast, have significantly more genotypes homozygous for the derived allele at synonymous and non-synonymous SNPs and for the damaging allele at 'probably damaging' SNPs than AAs do. For SNPs segregating only in one population or the other, the proportion of non-synonymous SNPs is significantly higher in the EA sample (55.4%) than in the AA sample (47.0%; P 〈 2.3 x 10(-37)). We observe a similar proportional excess of SNPs that are inferred to be 'probably damaging' (15.9% in EA; 12.1% in AA; P 〈 3.3 x 10(-11)). Using extensive simulations, we show that this excess proportion of segregating damaging alleles in Europeans is probably a consequence of a bottleneck that Europeans experienced at about the time of the migration out of Africa.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2923434/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2923434/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lohmueller, Kirk E -- Indap, Amit R -- Schmidt, Steffen -- Boyko, Adam R -- Hernandez, Ryan D -- Hubisz, Melissa J -- Sninsky, John J -- White, Thomas J -- Sunyaev, Shamil R -- Nielsen, Rasmus -- Clark, Andrew G -- Bustamante, Carlos D -- P50 GM065509/GM/NIGMS NIH HHS/ -- P50 GM065509-070006/GM/NIGMS NIH HHS/ -- R01 HG003229/HG/NHGRI NIH HHS/ -- R01 HG003229-03/HG/NHGRI NIH HHS/ -- R01 HL072904/HL/NHLBI NIH HHS/ -- England -- Nature. 2008 Feb 21;451(7181):994-7. doi: 10.1038/nature06611.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York 14853, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18288194" target="_blank"〉PubMed〈/a〉
    Keywords: Africa/ethnology ; Alleles ; Computational Biology ; Emigration and Immigration ; Europe/ethnology ; Exons/genetics ; Genome, Human/*genetics ; Heterozygote ; Homozygote ; Humans ; Polymerase Chain Reaction ; Polymorphism, Single Nucleotide/*genetics ; United States
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 2
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    An Aboriginal Australian genome reveals separate human dispersals into Asia (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-24
    Description: We present an Aboriginal Australian genomic sequence obtained from a 100-year-old lock of hair donated by an Aboriginal man from southern Western Australia in the early 20th century. We detect no evidence of European admixture and estimate contamination levels to be below 0.5%. We show that Aboriginal Australians are descendants of an early human dispersal into eastern Asia, possibly 62,000 to 75,000 years ago. This dispersal is separate from the one that gave rise to modern Asians 25,000 to 38,000 years ago. We also find evidence of gene flow between populations of the two dispersal waves prior to the divergence of Native Americans from modern Asian ancestors. Our findings support the hypothesis that present-day Aboriginal Australians descend from the earliest humans to occupy Australia, likely representing one of the oldest continuous populations outside Africa.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3991479/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3991479/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rasmussen, Morten -- Guo, Xiaosen -- Wang, Yong -- Lohmueller, Kirk E -- Rasmussen, Simon -- Albrechtsen, Anders -- Skotte, Line -- Lindgreen, Stinus -- Metspalu, Mait -- Jombart, Thibaut -- Kivisild, Toomas -- Zhai, Weiwei -- Eriksson, Anders -- Manica, Andrea -- Orlando, Ludovic -- De La Vega, Francisco M -- Tridico, Silvana -- Metspalu, Ene -- Nielsen, Kasper -- Avila-Arcos, Maria C -- Moreno-Mayar, J Victor -- Muller, Craig -- Dortch, Joe -- Gilbert, M Thomas P -- Lund, Ole -- Wesolowska, Agata -- Karmin, Monika -- Weinert, Lucy A -- Wang, Bo -- Li, Jun -- Tai, Shuaishuai -- Xiao, Fei -- Hanihara, Tsunehiko -- van Driem, George -- Jha, Aashish R -- Ricaut, Francois-Xavier -- de Knijff, Peter -- Migliano, Andrea B -- Gallego Romero, Irene -- Kristiansen, Karsten -- Lambert, David M -- Brunak, Soren -- Forster, Peter -- Brinkmann, Bernd -- Nehlich, Olaf -- Bunce, Michael -- Richards, Michael -- Gupta, Ramneek -- Bustamante, Carlos D -- Krogh, Anders -- Foley, Robert A -- Lahr, Marta M -- Balloux, Francois -- Sicheritz-Ponten, Thomas -- Villems, Richard -- Nielsen, Rasmus -- Wang, Jun -- Willerslev, Eske -- BB/H005854/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/H008802/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- R01 HG003229/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2011 Oct 7;334(6052):94-8. doi: 10.1126/science.1211177. Epub 2011 Sep 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for GeoGenetics, Natural History Museum of Denmark, Oster Voldgade 5-7, 1350 Copenhagen, Denmark.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21940856" target="_blank"〉PubMed〈/a〉
    Keywords: African Continental Ancestry Group ; Animals ; Asia ; Asian Continental Ancestry Group/genetics ; Computer Simulation ; DNA, Mitochondrial/genetics ; Emigration and Immigration ; Ethnic Groups/genetics ; European Continental Ancestry Group/genetics ; Far East ; Gene Flow ; Gene Frequency ; Genetics, Population/methods ; *Genome, Human ; Genome, Mitochondrial ; Haplotypes ; Hominidae/genetics ; Humans ; Linkage Disequilibrium ; Male ; Oceanic Ancestry Group/*genetics ; Phylogeny ; Polymorphism, Single Nucleotide ; Sequence Analysis, DNA ; Western Australia
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Genome-wide SNP and haplotype analyses reveal a rich history underlying dog domestication (2010)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2010-03-20
    Description: Advances in genome technology have facilitated a new understanding of the historical and genetic processes crucial to rapid phenotypic evolution under domestication. To understand the process of dog diversification better, we conducted an extensive genome-wide survey of more than 48,000 single nucleotide polymorphisms in dogs and their wild progenitor, the grey wolf. Here we show that dog breeds share a higher proportion of multi-locus haplotypes unique to grey wolves from the Middle East, indicating that they are a dominant source of genetic diversity for dogs rather than wolves from east Asia, as suggested by mitochondrial DNA sequence data. Furthermore, we find a surprising correspondence between genetic and phenotypic/functional breed groupings but there are exceptions that suggest phenotypic diversification depended in part on the repeated crossing of individuals with novel phenotypes. Our results show that Middle Eastern wolves were a critical source of genome diversity, although interbreeding with local wolf populations clearly occurred elsewhere in the early history of specific lineages. More recently, the evolution of modern dog breeds seems to have been an iterative process that drew on a limited genetic toolkit to create remarkable phenotypic diversity.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3494089/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3494089/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vonholdt, Bridgett M -- Pollinger, John P -- Lohmueller, Kirk E -- Han, Eunjung -- Parker, Heidi G -- Quignon, Pascale -- Degenhardt, Jeremiah D -- Boyko, Adam R -- Earl, Dent A -- Auton, Adam -- Reynolds, Andy -- Bryc, Kasia -- Brisbin, Abra -- Knowles, James C -- Mosher, Dana S -- Spady, Tyrone C -- Elkahloun, Abdel -- Geffen, Eli -- Pilot, Malgorzata -- Jedrzejewski, Wlodzimierz -- Greco, Claudia -- Randi, Ettore -- Bannasch, Danika -- Wilton, Alan -- Shearman, Jeremy -- Musiani, Marco -- Cargill, Michelle -- Jones, Paul G -- Qian, Zuwei -- Huang, Wei -- Ding, Zhao-Li -- Zhang, Ya-Ping -- Bustamante, Carlos D -- Ostrander, Elaine A -- Novembre, John -- Wayne, Robert K -- R01 GM083606/GM/NIGMS NIH HHS/ -- R01 GM083606-03/GM/NIGMS NIH HHS/ -- ZIC HG200365-01/Intramural NIH HHS/ -- ZIC HG200365-02/Intramural NIH HHS/ -- ZIC HG200365-03/Intramural NIH HHS/ -- England -- Nature. 2010 Apr 8;464(7290):898-902. doi: 10.1038/nature08837. Epub 2010 Mar 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, 621 Charles E. Young Drive South, University of California, Los Angeles, California 90095, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20237475" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Domestic/classification/*genetics ; Animals, Wild/classification/genetics ; Breeding ; Computational Biology ; Dogs/classification/*genetics ; Evolution, Molecular ; Far East/ethnology ; Genome/*genetics ; Haplotypes/*genetics ; Middle East/ethnology ; Phenotype ; Phylogeny ; Polymorphism, Single Nucleotide/*genetics ; Wolves/classification/genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 4
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    Evolution. On the origin of Peter Rabbit (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-08-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lohmueller, Kirk E -- New York, N.Y. -- Science. 2014 Aug 29;345(6200):1000-1. doi: 10.1126/science.1258775.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, Interdepartmental Program in Bioinformatics, University of California, Los Angeles, CA 90095, USA. klohmueller@ucla.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25170135" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Domestic/*genetics ; Animals, Wild/*genetics ; Rabbits/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    Comparison of Single Genome and Allele Frequency Data Reveals Discordant Demographic Histories (2017)
    Genetics Society of America (GSA)
    Details
    Publication Date: 2017-11-07
    Description: Inference of demographic history from genetic data is a primary goal of population genetics of model and nonmodel organisms. Whole genome-based approaches such as the pairwise/multiple sequentially Markovian coalescent methods use genomic data from one to four individuals to infer the demographic history of an entire population, while site frequency spectrum (SFS)-based methods use the distribution of allele frequencies in a sample to reconstruct the same historical events. Although both methods are extensively used in empirical studies and perform well on data simulated under simple models, there have been only limited comparisons of them in more complex and realistic settings. Here we use published demographic models based on data from three human populations (Yoruba, descendants of northwest-Europeans, and Han Chinese) as an empirical test case to study the behavior of both inference procedures. We find that several of the demographic histories inferred by the whole genome-based methods do not predict the genome-wide distribution of heterozygosity, nor do they predict the empirical SFS. However, using simulated data, we also find that the whole genome methods can reconstruct the complex demographic models inferred by SFS-based methods, suggesting that the discordant patterns of genetic variation are not attributable to a lack of statistical power, but may reflect unmodeled complexities in the underlying demography. More generally, our findings indicate that demographic inference from a small number of genomes, routine in genomic studies of nonmodel organisms, should be interpreted cautiously, as these models cannot recapitulate other summaries of the data.
    Electronic ISSN: 2160-1836
    Topics: Biology
    Published by Genetics Society of America (GSA)
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  • 6
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    Deleterious genetic variants in dogs and wolves [Evolution] (2016)
    National Academy of Sciences
    Details
    Publication Date: 2016-01-06
    Description: Population bottlenecks, inbreeding, and artificial selection can all, in principle, influence levels of deleterious genetic variation. However, the relative importance of each of these effects on genome-wide patterns of deleterious variation remains controversial. Domestic and wild canids offer a powerful system to address the role of these factors in influencing...
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 7
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    Genomic signatures of extensive inbreeding in Isle Royale wolves, a population on the threshold of extinction (2019)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2019
    Description: 〈p〉The observation that small isolated populations often suffer reduced fitness from inbreeding depression has guided conservation theory and practice for decades. However, investigating the genome-wide dynamics associated with inbreeding depression in natural populations is only now feasible with relatively inexpensive sequencing technology and annotated reference genomes. To characterize the genome-wide effects of intense inbreeding and isolation, we performed whole-genome sequencing and morphological analysis of an iconic inbred population, the gray wolves (〈i〉Canis lupus〈/i〉) of Isle Royale. Through population genetic simulations and comparison with wolf genomes from a variety of demographic histories, we find evidence that severe inbreeding depression in this population is due to increased homozygosity of strongly deleterious recessive mutations. Our results have particular relevance in light of the recent translocation of wolves from the mainland to Isle Royale, as well as broader implications for management of genetic variation in the fragmented landscape of the modern world.〈/p〉
    Electronic ISSN: 2375-2548
    Topics: Natural Sciences in General
    Published by American Association for the Advancement of Science (AAAS)
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