Publications by authors named "Ayushi Nayak"

4 Publications

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The formation of human populations in South and Central Asia.

Authors:
Vagheesh M Narasimhan Nick Patterson Priya Moorjani Nadin Rohland Rebecca Bernardos Swapan Mallick Iosif Lazaridis Nathan Nakatsuka Iñigo Olalde Mark Lipson Alexander M Kim Luca M Olivieri Alfredo Coppa Massimo Vidale James Mallory Vyacheslav Moiseyev Egor Kitov Janet Monge Nicole Adamski Neel Alex Nasreen Broomandkhoshbacht Francesca Candilio Kimberly Callan Olivia Cheronet Brendan J Culleton Matthew Ferry Daniel Fernandes Suzanne Freilich Beatriz Gamarra Daniel Gaudio Mateja Hajdinjak Éadaoin Harney Thomas K Harper Denise Keating Ann Marie Lawson Matthew Mah Kirsten Mandl Megan Michel Mario Novak Jonas Oppenheimer Niraj Rai Kendra Sirak Viviane Slon Kristin Stewardson Fatma Zalzala Zhao Zhang Gaziz Akhatov Anatoly N Bagashev Alessandra Bagnera Bauryzhan Baitanayev Julio Bendezu-Sarmiento Arman A Bissembaev Gian Luca Bonora Temirlan T Chargynov Tatiana Chikisheva Petr K Dashkovskiy Anatoly Derevianko Miroslav Dobeš Katerina Douka Nadezhda Dubova Meiram N Duisengali Dmitry Enshin Andrey Epimakhov Alexey V Fribus Dorian Fuller Alexander Goryachev Andrey Gromov Sergey P Grushin Bryan Hanks Margaret Judd Erlan Kazizov Aleksander Khokhlov Aleksander P Krygin Elena Kupriyanova Pavel Kuznetsov Donata Luiselli Farhod Maksudov Aslan M Mamedov Talgat B Mamirov Christopher Meiklejohn Deborah C Merrett Roberto Micheli Oleg Mochalov Samariddin Mustafokulov Ayushi Nayak Davide Pettener Richard Potts Dmitry Razhev Marina Rykun Stefania Sarno Tatyana M Savenkova Kulyan Sikhymbaeva Sergey M Slepchenko Oroz A Soltobaev Nadezhda Stepanova Svetlana Svyatko Kubatbek Tabaldiev Maria Teschler-Nicola Alexey A Tishkin Vitaly V Tkachev Sergey Vasilyev Petr Velemínský Dmitriy Voyakin Antonina Yermolayeva Muhammad Zahir Valery S Zubkov Alisa Zubova Vasant S Shinde Carles Lalueza-Fox Matthias Meyer David Anthony Nicole Boivin Kumarasamy Thangaraj Douglas J Kennett Michael Frachetti Ron Pinhasi David Reich

Science 2019 09;365(6457)

Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.

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.
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http://dx.doi.org/10.1126/science.aat7487DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6822619PMC
September 2019

Archaeological assessment reveals Earth's early transformation through land use.

Authors:
Lucas Stephens Dorian Fuller Nicole Boivin Torben Rick Nicolas Gauthier Andrea Kay Ben Marwick Chelsey Geralda Armstrong C Michael Barton Tim Denham Kristina Douglass Jonathan Driver Lisa Janz Patrick Roberts J Daniel Rogers Heather Thakar Mark Altaweel Amber L Johnson Maria Marta Sampietro Vattuone Mark Aldenderfer Sonia Archila Gilberto Artioli Martin T Bale Timothy Beach Ferran Borrell Todd Braje Philip I Buckland Nayeli Guadalupe Jiménez Cano José M Capriles Agustín Diez Castillo Çiler Çilingiroğlu Michelle Negus Cleary James Conolly Peter R Coutros R Alan Covey Mauro Cremaschi Alison Crowther Lindsay Der Savino di Lernia John F Doershuk William E Doolittle Kevin J Edwards Jon M Erlandson Damian Evans Andrew Fairbairn Patrick Faulkner Gary Feinman Ricardo Fernandes Scott M Fitzpatrick Ralph Fyfe Elena Garcea Steve Goldstein Reed Charles Goodman Jade Dalpoim Guedes Jason Herrmann Peter Hiscock Peter Hommel K Ann Horsburgh Carrie Hritz John W Ives Aripekka Junno Jennifer G Kahn Brett Kaufman Catherine Kearns Tristram R Kidder François Lanoë Dan Lawrence Gyoung-Ah Lee Maureece J Levin Henrik B Lindskoug José Antonio López-Sáez Scott Macrae Rob Marchant John M Marston Sarah McClure Mark D McCoy Alicia Ventresca Miller Michael Morrison Giedre Motuzaite Matuzeviciute Johannes Müller Ayushi Nayak Sofwan Noerwidi Tanya M Peres Christian E Peterson Lucas Proctor Asa R Randall Steve Renette Gwen Robbins Schug Krysta Ryzewski Rakesh Saini Vivian Scheinsohn Peter Schmidt Pauline Sebillaud Oula Seitsonen Ian A Simpson Arkadiusz Sołtysiak Robert J Speakman Robert N Spengler Martina L Steffen Michael J Storozum Keir M Strickland Jessica Thompson T L Thurston Sean Ulm M Cemre Ustunkaya Martin H Welker Catherine West Patrick Ryan Williams David K Wright Nathan Wright Muhammad Zahir Andrea Zerboni Ella Beaudoin Santiago Munevar Garcia Jeremy Powell Alexa Thornton Jed O Kaplan Marie-José Gaillard Kees Klein Goldewijk Erle Ellis

Science 2019 08;365(6456):897-902

Environmentally transformative human use of land accelerated with the emergence of agriculture, but the extent, trajectory, and implications of these early changes are not well understood. An empirical global assessment of land use from 10,000 years before the present (yr B.P.) to 1850 CE reveals a planet largely transformed by hunter-gatherers, farmers, and pastoralists by 3000 years ago, considerably earlier than the dates in the land-use reconstructions commonly used by Earth scientists. Synthesis of knowledge contributed by more than 250 archaeologists highlighted gaps in archaeological expertise and data quality, which peaked for 2000 yr B.P. and in traditionally studied and wealthier regions. Archaeological reconstruction of global land-use history illuminates the deep roots of Earth's transformation and challenges the emerging Anthropocene paradigm that large-scale anthropogenic global environmental change is mostly a recent phenomenon.
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http://dx.doi.org/10.1126/science.aax1192DOI Listing
August 2019

Ancient DNA from the skeletons of Roopkund Lake reveals Mediterranean migrants in India.

Nat Commun 2019 08 20;10(1):3670. Epub 2019 Aug 20.

CSIR Centre for Cellular and Molecular Biology, Hyderabad, Telangana, 500007, India.

Situated at over 5,000 meters above sea level in the Himalayan Mountains, Roopkund Lake is home to the scattered skeletal remains of several hundred individuals of unknown origin. We report genome-wide ancient DNA for 38 skeletons from Roopkund Lake, and find that they cluster into three distinct groups. A group of 23 individuals have ancestry that falls within the range of variation of present-day South Asians. A further 14 have ancestry typical of the eastern Mediterranean. We also identify one individual with Southeast Asian-related ancestry. Radiocarbon dating indicates that these remains were not deposited simultaneously. Instead, all of the individuals with South Asian-related ancestry date to ~800 CE (but with evidence of being deposited in more than one event), while all other individuals date to ~1800 CE. These differences are also reflected in stable isotope measurements, which reveal a distinct dietary profile for the two main groups.
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http://dx.doi.org/10.1038/s41467-019-11357-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6702210PMC
August 2019

Sampling and Pretreatment of Tooth Enamel Carbonate for Stable Carbon and Oxygen Isotope Analysis.

J Vis Exp 2018 08 15(138). Epub 2018 Aug 15.

Max Planck Institute for the Science of Human History.

Stable carbon and oxygen isotope analysis of human and animal tooth enamel carbonate has been applied in paleodietary, paleoecological, and paleoenvironmental research from recent historical periods back to over 10 million years ago. Bulk approaches provide a representative sample for the period of enamel mineralization, while sequential samples within a tooth can track dietary and environmental changes during this period. While these methodologies have been widely applied and described in archaeology, ecology, and paleontology, there have been no explicit guidelines to aid in the selection of necessary lab equipment and to thoroughly describe detailed laboratory sampling and protocols. In this article, we document textually and visually, the entire process from sampling through pretreatment and diagenetic screening to make the methodology more widely available to researchers considering its application in a variety of laboratory settings.
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http://dx.doi.org/10.3791/58002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6126827PMC
August 2018