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  • 1
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    Ancient cattle genomics, origins, and rapid turnover in the Fertile Crescent (2019)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2019
    Description: 〈p〉Genome-wide analysis of 67 ancient Near Eastern cattle, 〈i〉Bos taurus,〈/i〉 remains reveals regional variation that has since been obscured by admixture in modern populations. Comparisons of genomes of early domestic cattle to their aurochs progenitors identify diverse origins with separate introgressions of wild stock. A later region-wide Bronze Age shift indicates rapid and widespread introgression of zebu, 〈i〉Bos indicus,〈/i〉 from the Indus Valley. This process was likely stimulated at the onset of the current geological age, ~4.2 thousand years ago, by a widespread multicentury drought. In contrast to genome-wide admixture, mitochondrial DNA stasis supports that this introgression was male-driven, suggesting that selection of arid-adapted zebu bulls enhanced herd survival. This human-mediated migration of zebu-derived genetics has continued through millennia, altering tropical herding on each continent.〈/p〉
    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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  • 2
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    Ancient goat genomes reveal mosaic domestication in the Fertile Crescent (2018)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2018-07-06
    Description: Current genetic data are equivocal as to whether goat domestication occurred multiple times or was a singular process. We generated genomic data from 83 ancient goats (51 with genome-wide coverage) from Paleolithic to Medieval contexts throughout the Near East. Our findings demonstrate that multiple divergent ancient wild goat sources were domesticated in a dispersed process that resulted in genetically and geographically distinct Neolithic goat populations, echoing contemporaneous human divergence across the region. These early goat populations contributed differently to modern goats in Asia, Africa, and Europe. We also detect early selection for pigmentation, stature, reproduction, milking, and response to dietary change, providing 8000-year-old evidence for human agency in molding genome variation within a partner species.
    Keywords: Genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , 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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    Revisiting the commons: local lessons, global challenges (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-09
    Description: In a seminal paper, Garrett Hardin argued in 1968 that users of a commons are caught in an inevitable process that leads to the destruction of the resources on which they depend. This article discusses new insights about such problems and the conditions most likely to favor sustainable uses of common-pool resources. Some of the most difficult challenges concern the management of large-scale resources that depend on international cooperation, such as fresh water in international basins or large marine ecosystems. Institutional diversity may be as important as biological diversity for our long-term survival.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ostrom, E -- Burger, J -- Field, C B -- Norgaard, R B -- Policansky, D -- ESO 5022/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1999 Apr 9;284(5412):278-82.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for the Study of Institutions, Population, and Environmental Change and Workshop in Political Theory and Policy Analysis, Indiana University, Bloomington, IN 47408, USA. ostrom@indiana.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10195886" target="_blank"〉PubMed〈/a〉
    Keywords: *Conservation of Natural Resources ; *Ecosystem ; Government ; Ownership ; Private Sector ; Privatization ; *Public Policy ; Public Sector ; Social Responsibility
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Genetic discontinuity between local hunter-gatherers and central Europe's first farmers (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-09-05
    Description: After the domestication of animals and crops in the Near East some 11,000 years ago, farming had reached much of central Europe by 7500 years before the present. The extent to which these early European farmers were immigrants or descendants of resident hunter-gatherers who had adopted farming has been widely debated. We compared new mitochondrial DNA (mtDNA) sequences from late European hunter-gatherer skeletons with those from early farmers and from modern Europeans. We find large genetic differences between all three groups that cannot be explained by population continuity alone. Most (82%) of the ancient hunter-gatherers share mtDNA types that are relatively rare in central Europeans today. Together, these analyses provide persuasive evidence that the first farmers were not the descendants of local hunter-gatherers but immigrated into central Europe at the onset of the Neolithic.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bramanti, B -- Thomas, M G -- Haak, W -- Unterlaender, M -- Jores, P -- Tambets, K -- Antanaitis-Jacobs, I -- Haidle, M N -- Jankauskas, R -- Kind, C-J -- Lueth, F -- Terberger, T -- Hiller, J -- Matsumura, S -- Forster, P -- Burger, J -- New York, N.Y. -- Science. 2009 Oct 2;326(5949):137-40. doi: 10.1126/science.1176869. Epub 2009 Sep 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Anthropology, University of Mainz, Mainz, Germany. bramanti@uni-mainz.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19729620" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture/*history ; DNA, Mitochondrial/*genetics/history ; Emigration and Immigration/history ; Europe ; European Continental Ancestry Group/*genetics/history ; Female ; Genetic Variation ; Haplotypes ; History, Ancient ; Humans ; Male ; Population Dynamics ; Probability
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Ancient DNA from the first European farmers in 7500-year-old Neolithic sites (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-11-15
    Description: The ancestry of modern Europeans is a subject of debate among geneticists, archaeologists, and anthropologists. A crucial question is the extent to which Europeans are descended from the first European farmers in the Neolithic Age 7500 years ago or from Paleolithic hunter-gatherers who were present in Europe since 40,000 years ago. Here we present an analysis of ancient DNA from early European farmers. We successfully extracted and sequenced intact stretches of maternally inherited mitochondrial DNA (mtDNA) from 24 out of 57 Neolithic skeletons from various locations in Germany, Austria, and Hungary. We found that 25% of the Neolithic farmers had one characteristic mtDNA type and that this type formerly was widespread among Neolithic farmers in Central Europe. Europeans today have a 150-times lower frequency (0.2%) of this mtDNA type, revealing that these first Neolithic farmers did not have a strong genetic influence on modern European female lineages. Our finding lends weight to a proposed Paleolithic ancestry for modern Europeans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Haak, Wolfgang -- Forster, Peter -- Bramanti, Barbara -- Matsumura, Shuichi -- Brandt, Guido -- Tanzer, Marc -- Villems, Richard -- Renfrew, Colin -- Gronenborn, Detlef -- Alt, Kurt Werner -- Burger, Joachim -- New York, N.Y. -- Science. 2005 Nov 11;310(5750):1016-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Anthropologie, Johannes Gutenberg Universitat Mainz, Saarstrasse 21, D-55099 Mainz, Germany. haakw@uni-mainz.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16284177" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture/*history ; Austria ; Base Sequence ; Computer Simulation ; Cultural Evolution ; DNA, Mitochondrial/chemistry/classification/*genetics/history ; Emigration and Immigration ; Europe ; European Continental Ancestry Group/*genetics/history ; Female ; Gene Frequency ; Genetic Drift ; Genetics, Population ; Germany ; Haplotypes ; History, Ancient ; Humans ; Hungary ; Male ; Molecular Sequence Data ; Population Dynamics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    2000 years of parallel societies in Stone Age Central Europe (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-10-12
    Description: Debate on the ancestry of Europeans centers on the interplay between Mesolithic foragers and Neolithic farmers. Foragers are generally believed to have disappeared shortly after the arrival of agriculture. To investigate the relation between foragers and farmers, we examined Mesolithic and Neolithic samples from the Blatterhohle site. Mesolithic mitochondrial DNA sequences were typical of European foragers, whereas the Neolithic sample included additional lineages that are associated with early farmers. However, isotope analyses separate the Neolithic sample into two groups: one with an agriculturalist diet and one with a forager and freshwater fish diet, the latter carrying mitochondrial DNA sequences typical of Mesolithic hunter-gatherers. This indicates that the descendants of Mesolithic people maintained a foraging lifestyle in Central Europe for more than 2000 years after the arrival of farming societies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bollongino, Ruth -- Nehlich, Olaf -- Richards, Michael P -- Orschiedt, Jorg -- Thomas, Mark G -- Sell, Christian -- Fajkosova, Zuzana -- Powell, Adam -- Burger, Joachim -- New York, N.Y. -- Science. 2013 Oct 25;342(6157):479-81. doi: 10.1126/science.1245049. Epub 2013 Oct 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Palaeogenetics Group, Institute of Anthropology, Johannes Gutenberg University, 55099 Mainz, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24114781" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture/*history ; Animal Feed/*history ; Animals ; Animals, Domestic ; *Anthropology ; Base Sequence ; DNA, Mitochondrial/genetics/history ; Europe ; *Evolution, Molecular ; History, Ancient ; Humans ; Molecular Sequence Data
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
    Electronic Resource
    Electronic Resource
    Heavy Metal and Selenium Levels in Franklin's Gull (Larus pipixcan Parents and Their Eggs (1996)
    Springer
    Archives of environmental contamination and toxicology 30 (1996), S. 487-491 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract. Lead, cadmium, mercury, chromium, selenium, and manganese concentrations were measured in the breast feathers of 25 pairs of Franklin's Gulls (Larus pipixcan) and in their eggs from a breeding colony at Agassiz National Wildlife Refuge in Northwestern Minnesota. Metal concentrations in eggs represent metals sequestered in the egg by females at the time of egg formation; while metal concentrations in parents represent concentrations of metals in the blood supply at the time of feather formation. There were no significant sexual differences in metal concentrations in feathers, assuming the male to be larger of each pair, but there were significant differences between the concentrations of metals in parents and their eggs. Eggs had significantly higher concentrations of selenium and chromium, but significantly lower concentrations of all other metals than the feathers of their parents. There were few significant correlations among metal concentrations within the egg or within the feather of females, but there were correlations for the feathers of males. Lead and cadmium in feathers were positively correlated for both males and females. Chromium concentrations in eggs were generally higher than reported in the literature. The concentrations in eggs and the feathers of females were positively correlated for mercury, and negatively correlated for chromium and manganese.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002449900067
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  • 8
    Electronic Resource
    Electronic Resource
    Origin of low energy cosmic ray positrons at energies ≳2 MeV (1970)
    Springer
    Astrophysics and space science 8 (1970), S. 20-28 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract It is shown that an appreciable flux of positrons below ∼a few MeV in the cosmic radiation could arise from the decay of cobalt nuclei in the decay chain56Ni→56Co→56Fe, which occurs in the silicon burning shells of supernovae just after their ejection at relativistic velocities. The equilibrium spectrum of positrons in the interstellar space has been calculated on the assumption that the observed abundance of iron nuclei in the cosmic radiation is the result of the above process. It is found that the observation below about 10 MeV can be well explained with a moderate acceleration of the positrons in the expanding envelope of supernovae prior to their propagation in the interstellar space. The total56Ni content in the shells of supernova necessary to account for the observed positrons is in agreement with that required to explain the peak luminosity during the supernova outburst. Since this model deals with positrons created at the time of injection of cosmic rays into the interstellar space, it becomes possible to study the shape of the injection spectrum of cosmic rays.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00651651
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  • 9
    Electronic Resource
    Electronic Resource
    Metals and Metalloids in Tissues of American Alligators in Three Florida Lakes (2000)
    Springer
    Archives of environmental contamination and toxicology 38 (2000), S. 501-508 
    Details
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract Concentrations of metals and selenium were examined in tissues of American alligators (Alligator mississippiensis) from three lakes in central Florida, in one of which alligators have exhibited reproductive or developmental defects. Our overall objective was to determine whether the levels of metals were sufficiently high to confound the association between chlorinated hydrocarbons, which are elevated in eggs and juvenile plasma, and reproductive impairment. The concentrations of all metals were relatively low compared to those reported for alligators from elsewhere in Florida and the southeastern United States, suggesting that reproductive impairment is not due to metals and that metals pose no health risk to the alligators. We also wanted to determine whether skin, biopsied tail muscle, or tail tip tissue, all easily collected from live alligators, could be used as surrogate measures of internal tissue loads. Concentrations of arsenic, cadmium, chromium, lead, manganese, mercury, and selenium in liver were highly correlated with at least one of the three biopsied tissues. Only tin showed no significant positive correlation. No single tissue gave a high prediction of liver levels for all metals, although skin gave the highest correlation for mercury, and tail muscle gave the best overall correlation for lead and cadmium.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002440010066
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  • 10
    Electronic Resource
    Electronic Resource
    Comparison of liquid-liquid extraction and resin adsorption for concentrating mutagens in amesSalmonella/microsome assays on water (1981)
    Springer
    Bulletin of environmental contamination and toxicology 27 (1981), S. 442-449 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01611046
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