Institution
Hartwick College
Education•Oneonta, New York, United States•
About: Hartwick College is a education organization based out in Oneonta, New York, United States. It is known for research contribution in the topics: Population & Public opinion. The organization has 223 authors who have published 435 publications receiving 11484 citations. The organization is also known as: Hartwick Seminary & Hawks.
Topics: Population, Public opinion, Genome, Domestication, Psychosocial
Papers published on a yearly basis
Papers
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University of Adelaide1, Harvard University2, Broad Institute3, Howard Hughes Medical Institute4, University of Mainz5, Max Planck Society6, University of Tübingen7, Hungarian Academy of Sciences8, Stockholm University9, Facultad de Filosofía y Letras10, The Heritage Foundation11, University of Basel12, Autonomous University of Barcelona13, University of Valladolid14, Hartwick College15
TL;DR: In this paper, the authors generated genome-wide data from 69 Europeans who lived between 8,000-3,000 years ago by enriching ancient DNA libraries for a target set of almost 400,000 polymorphisms.
Abstract: We generated genome-wide data from 69 Europeans who lived between 8,000-3,000 years ago by enriching ancient DNA libraries for a target set of almost 400,000 polymorphisms. Enrichment of these positions decreases the sequencing required for genome-wide ancient DNA analysis by a median of around 250-fold, allowing us to study an order of magnitude more individuals than previous studies and to obtain new insights about the past. We show that the populations of Western and Far Eastern Europe followed opposite trajectories between 8,000-5,000 years ago. At the beginning of the Neolithic period in Europe, ∼8,000-7,000 years ago, closely related groups of early farmers appeared in Germany, Hungary and Spain, different from indigenous hunter-gatherers, whereas Russia was inhabited by a distinctive population of hunter-gatherers with high affinity to a ∼24,000-year-old Siberian. By ∼6,000-5,000 years ago, farmers throughout much of Europe had more hunter-gatherer ancestry than their predecessors, but in Russia, the Yamnaya steppe herders of this time were descended not only from the preceding eastern European hunter-gatherers, but also from a population of Near Eastern ancestry. Western and Eastern Europe came into contact ∼4,500 years ago, as the Late Neolithic Corded Ware people from Germany traced ∼75% of their ancestry to the Yamnaya, documenting a massive migration into the heartland of Europe from its eastern periphery. This steppe ancestry persisted in all sampled central Europeans until at least ∼3,000 years ago, and is ubiquitous in present-day Europeans. These results provide support for a steppe origin of at least some of the Indo-European languages of Europe.
1,332 citations
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Harvard University1, Broad Institute2, Howard Hughes Medical Institute3, University College Dublin4, Emory University5, University of Copenhagen6, Trinity College, Dublin7, University of Adelaide8, Russian Academy of Sciences9, Complutense University of Madrid10, Rovira i Virgili University11, University of Valladolid12, Max Planck Society13, University of Tübingen14, University of Basel15, Danube Private University16, Hartwick College17, Pompeu Fabra University18
TL;DR: A genome-wide scan for selection using ancient DNA is reported, capitalizing on the largest ancient DNA data set yet assembled: 230 West Eurasians who lived between 6500 and 300 bc, including 163 with newly reported data.
Abstract: Ancient DNA makes it possible to observe natural selection directly by analysing samples from populations before, during and after adaptation events. Here we report a genome-wide scan for selection using ancient DNA, capitalizing on the largest ancient DNA data set yet assembled: 230 West Eurasians who lived between 6500 and 300 bc, including 163 with newly reported data. The new samples include, to our knowledge, the first genome-wide ancient DNA from Anatolian Neolithic farmers, whose genetic material we obtained by extracting from petrous bones, and who we show were members of the population that was the source of Europe's first farmers. We also report a transect of the steppe region in Samara between 5600 and 300 bc, which allows us to identify admixture into the steppe from at least two external sources. We detect selection at loci associated with diet, pigmentation and immunity, and two independent episodes of selection on height.
1,083 citations
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Cornell University1, Max Planck Society2, Lafayette College3, National Radio Astronomy Observatory4, Union College5, California Institute of Technology6, Colgate University7, West Texas A&M University8, Georgia Southern University9, Humboldt State University10, St. Lawrence University11, Saint Mary's College of California12, George Mason University13, Royal Military College of Canada14, Hartwick College15, University of Wisconsin-Madison16
TL;DR: The α.40 catalog of 21 cm H I line sources extracted from the Arecibo Legacy Fast arecibo L-band Feed Array (ALFALFA) survey over ~2800 deg^2 of sky is presented in this article.
Abstract: We present a current catalog of 21 cm H I line sources extracted from the Arecibo Legacy Fast Arecibo L-band Feed Array (ALFALFA) survey over ~2800 deg^2 of sky: the α.40 catalog. Covering 40% of the final survey area, the α.40 catalog contains 15,855 sources in the regions 07^h30^m < R.A. < 16^h30^m, +04° < decl. <+16°, and +24° < decl. <+28° and 22^h < R.A. < 03^h, +14° < decl. <+16°, and +24° < decl. < + 32°. Of those, 15,041 are certainly extragalactic, yielding a source density of 5.3 galaxies per deg^2, a factor of 29 improvement over the catalog extracted from the H I Parkes All-Sky Survey. In addition to the source centroid positions, H I line flux densities, recessional velocities, and line widths, the catalog includes the coordinates of the most probable optical counterpart of each H I line detection, and a separate compilation provides a cross-match to identifications given in the photometric and spectroscopic catalogs associated with the Sloan Digital Sky Survey Data Release 7. Fewer than 2% of the extragalactic H I line sources cannot be identified with a feasible optical counterpart; some of those may be rare OH megamasers at 0.16 < z < 0.25. A detailed analysis is presented of the completeness, width-dependent sensitivity function and bias inherent of the α.40 catalog. The impact of survey selection, distance errors, current volume coverage, and local large-scale structure on the derivation of the H I mass function is assessed. While α.40 does not yet provide a completely representative sampling of cosmological volume, derivations of the H I mass function using future data releases from ALFALFA will further improve both statistical and systematic uncertainties.
741 citations
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TL;DR: In this article, it is argued that traditional archeological approaches to migration fall short because a methodology for examining prehistoric migration must be dependent upon an understanding of the general structure of migration as a patterned human behavior.
Abstract: Migration has been largely ignored by archeologists for the last two decades. Yet prehistoric demography and population studies are accepted as central concerns, and neither of these can be studied profitably without an understanding of migration. Recent books by Rouse and Renfrew have resurrected migration as a subject of serious analysis. It is proposed here that systems-oriented archeologists, in rejecting migration, have thrown out the baby with the bathwater. Traditional archeological approaches to migration fall short because a methodology for examining prehistoric migration must be dependent upon an understanding of the general structure of migration as a patterned human behavior. Aspects of such a structure are suggested and an application to a particular case in Eastern Europe is described.
448 citations
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Harvard University1, Radcliffe Institute for Advanced Study2, Broad Institute3, University of California, Berkeley4, Howard Hughes Medical Institute5, Massachusetts Institute of Technology6, Sapienza University of Rome7, University of Padua8, Queen's University Belfast9, Russian Academy of Sciences10, Al-Farabi University11, University of Pennsylvania12, University College Dublin13, University of Vienna14, Pennsylvania State University15, Max Planck Society16, Birbal Sahni Institute of Palaeobotany17, Centre for Cellular and Molecular Biology18, Emory University19, Centre national de la recherche scientifique20, Kyrgyz National University21, Altai State University22, Academy of Sciences of the Czech Republic23, University of Oxford24, South Ural State University25, Kemerovo State University26, Northwest University (China)27, University College London28, University of Pittsburgh29, Samara State University30, Chelyabinsk State University31, University of Bologna32, Academy of Sciences of Uzbekistan33, University of Winnipeg34, Simon Fraser University35, National Museum of Natural History36, Tomsk State University37, Naturhistorisches Museum38, Národní muzeum39, Hazara University40, Deccan College Post-Graduate and Research Institute41, Pompeu Fabra University42, Hartwick College43, University of California, Santa Barbara44, Washington University in St. Louis45
TL;DR: It is shown that Steppe ancestry then integrated further south in the first half of the second millennium BCE, contributing up to 30% of the ancestry of modern groups in South Asia, supporting the idea that the archaeologically documented dispersal of domesticates was accompanied by the spread of people from multiple centers of domestication.
Abstract: By sequencing 523 ancient humans, we show that the primary source of ancestry in modern South Asians is a prehistoric genetic gradient between people related to early hunter-gatherers of Iran and Southeast Asia. After the Indus Valley Civilization's decline, its people mixed with individuals in the southeast to form one of the two main ancestral populations of South Asia, whose direct descendants live in southern India. Simultaneously, they mixed with descendants of Steppe pastoralists who, starting around 4000 years ago, spread via Central Asia to form the other main ancestral population. The Steppe ancestry in South Asia has the same profile as that in Bronze Age Eastern Europe, tracking a movement of people that affected both regions and that likely spread the distinctive features shared between Indo-Iranian and Balto-Slavic languages.
354 citations
Authors
Showing all 224 results
Name | H-index | Papers | Citations |
---|---|---|---|
Louis A. Derry | 45 | 93 | 8011 |
Michael T. Murphy | 30 | 78 | 2325 |
David W. Anthony | 25 | 51 | 4766 |
Stanley K. Sessions | 22 | 52 | 1861 |
Patrick J. Drohan | 20 | 79 | 1229 |
William J. Kowalczyk | 19 | 42 | 1190 |
Daniel Stevens | 17 | 58 | 971 |
Randall Everett Allsup | 16 | 41 | 982 |
Vanessa L. Horner | 14 | 22 | 905 |
Dorcas Brown | 13 | 20 | 2665 |
Neil DeVotta | 13 | 27 | 664 |
Laurel Elder | 13 | 40 | 454 |
Justin A. Wellman | 13 | 16 | 729 |
Melonie Walcott | 12 | 20 | 515 |
Sara R. Rinfret | 12 | 49 | 371 |