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Ryk Ward

Active 1986–2005

41
Papers
18,798
Citations
41
h-index
41
i10-index

Citations

Citations per year for Ryk Ward1964: 1 citations1967: 1 citations1986: 6 citations1987: 6 citations1988: 8 citations1989: 6 citations1990: 4 citations1991: 4 citations1992: 5 citations1993: 13 citations1994: 23 citations1995: 34 citations1996: 65 citations1997: 45 citations1998: 60 citations1999: 75 citations2000: 55 citations2001: 112 citations2002: 223 citations2003: 328 citations2004: 398 citations2005: 406 citations2006: 278 citations2007: 298 citations2008: 283 citations2009: 221 citations2010: 185 citations2011: 161 citations2012: 117 citations2013: 108 citations2014: 101 citations2015: 91 citations2016: 94 citations2017: 83 citations2018: 58 citations2019: 228 citations2020: 186 citations2021: 159 citations2022: 128 citations2023: 67 citations2024: 128 citations2025: 45 citations2026: 2 citations1965–1966: no citations, so these years are not shown1968–1985: no citations, so these years are not shown

Citation sources

Countries

World map of the countries and regions citing this authorUnited States: 2,365 citing papers, 30.5% of this breakdownUnited Kingdom: 715 citing papers, 9.2% of this breakdownGermany: 402 citing papers, 5.2% of this breakdownChina: 374 citing papers, 4.8% of this breakdownCanada: 297 citing papers, 3.8% of this breakdownFrance: 256 citing papers, 3.3% of this breakdownSpain: 223 citing papers, 2.9% of this breakdownAustralia: 215 citing papers, 2.8% of this breakdownSweden: 208 citing papers, 2.7% of this breakdownItaly: 197 citing papers, 2.5% of this breakdownNetherlands: 154 citing papers, 2% of this breakdownDenmark: 146 citing papers, 1.9% of this breakdown
0%30.5%Other 28.4%

Institutions

Fields

  • Biochemistry, Genetics and Molecular Biology58.6%
  • Medicine21.5%
  • Agricultural and Biological Sciences3.3%
  • Environmental Science3.3%
  • Immunology and Microbiology2.9%
  • Neuroscience1.9%
  • Other8.5%

Topics

  • Genetic Associations and Epidemiology7.9%
  • Genetic Mapping and Diversity in Plants and Animals5.9%
  • Genetic diversity and population structure5.6%
  • Genetic and phenotypic traits in livestock4.8%
  • Forensic and Genetic Research3.9%
  • Genomics and Phylogenetic Studies2.2%
  • Other69.7%

Coauthors

All papers

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  1. The Structure of Haplotype Blocks in the Human Genome

    Authors: Stacey Gabriel, S. F. Schaffner, Huy Nguyen, Jamie Moore, Jessica Roy, Brendan Blumenstiel, John M. Higgins, Matthew DeFelice, Amy L. Lochner, Maura Faggart, Shau Neen Liu-Cordero, Charles N. Rotimi, Adebowale Adeyemo, Richard Cooper, Ryk Ward, Eric S. Lander, Mark J. Daly, David Altshuler - Science 2002 cited by 5,952

  2. Detecting recent positive selection in the human genome from haplotype structure

    Authors: Pardis C. Sabeti, David Reich, John M. Higgins, Haninah Z. P. Levine, Daniel J. Richter, S. F. Schaffner, Stacey Gabriel, Jill Platko, Nick Patterson, Gavin J. McDonald, Hans Ackerman, Sarah J. Campbell, David Altshuler, Richard Cooper, Dominic Kwiatkowski, Ryk Ward, Eric S. Lander - Nature 2002 cited by 2,255

  3. Informativeness of Genetic Markers for Inference of Ancestry*

    Authors: Noah A. Rosenberg, Lei M. Li, Ryk Ward, Jonathan K. Pritchard - The American Journal of Human Genetics 2003 cited by 732

  4. Linkage disequilibrium in the human genome

    Authors: David Reich, Michele Cargill, Stacey Bolk, James Ireland, Pardis C. Sabeti, Daniel J. Richter, Thomas Lavery, Rose Kouyoumjian, Shelli Farhadian, Ryk Ward, Eric S. Lander - Nature 2001 cited by 1,791

  5. Race and Genomics

    Authors: Richard S. Cooper, Jay S. Kaufman, Ryk Ward - New England Journal of Medicine 2003 cited by 641

  6. "Association of Young Maternal Age with Adverse Reproductive Outcomes."

    Authors: Alison Fraser, John E. Brockert, Ryk Ward - New England Journal of Medicine 1995 cited by 965

  7. The retrieval of ancient human DNA sequences.

    Authors: Oliva Handt, Matthias Krings, Ryk Ward, Svante Pääbo - 1996 cited by 332

  8. Neonatal complications following preterm birth

    Authors: Ryk Ward - BJOG An International Journal of Obstetrics & Gynaecology 2003 cited by 253

  9. A Populationwide Coalescent Analysis of Icelandic Matrilineal and Patrilineal Genealogies: Evidence for a Faster Evolutionary Rate of mtDNA Lineages than Y Chromosomes

    Authors: Agnar Helgason, Birgir Hrafnkelsson, Jeffrey R. Gulcher, Ryk Ward, Kāri Stefánsson - The American Journal of Human Genetics 2003 cited by 147

  10. Complete mitochondrial genome sequences of two extinct moas clarify ratite evolution

    Authors: Alan Cooper, Carles Lalueza‐Fox, Simon Anderson, Andrew Rambaut, Jeremy J. Austin, Ryk Ward - Nature 2001 cited by 443

  11. Linkage and Association Analysis of Angiotensin I–Converting Enzyme (ACE)–Gene Polymorphisms with ACE Concentration and Blood Pressure

    Authors: Xiaofeng Zhu, Nourdine Bouzekri, Lorraine Southam, Richard Cooper, Adebowale Adeyemo, Colin A. McKenzie, Amy Luke, Guangjie Chen, Robert C. Elston, Ryk Ward - The American Journal of Human Genetics 2001 cited by 269

  12. Estimating Scandinavian and Gaelic Ancestry in the Male Settlers of Iceland

    Authors: Agnar Helgason, Sigrún Sigurðardóttir, Jayne Nicholson, Bryan Sykes, Emmeline W. Hill, Daniel G. Bradley, Vidar Bosnes, Jeffery R. Gulcher, Ryk Ward, Kāri Stefánsson - The American Journal of Human Genetics 2000 cited by 237

  13. Natural Selection on the Erythrocyte Surface

    Authors: Jake Baum, Ryk Ward, David J. Conway - Molecular Biology and Evolution 2002 cited by 151

  14. Genetic evidence in support of a shared Eurasian-North African dairying origin

    Authors: Sean Myles, Nourdine Bouzekri, Eden Haverfield, Mohamed Cherkaoui, Jean‐Michel Dugoujon, Ryk Ward - Human Genetics 2005 cited by 110

  15. Extensive mitochondrial diversity within a single Amerindian tribe.

    Authors: Ryk Ward, B L Frazier, K Dew-Jager, Svante Pääbo - National Academy of Sciences, Proceedings of the National Academy of Sciences 1991 cited by 465

  16. A Genomewide Screen in Multiplex Rheumatoid Arthritis Families Suggests Genetic Overlap with Other Autoimmune Diseases

    Authors: Damini Jawaheer, Michael F. Seldin, Christopher I. Amos, Wei V. Chen, Russell Shigeta, Joanita Monteiro, Marlene Kern, Lindsey A. Criswell, Salvatore Albani, J. Lee Nelson, Daniel O. Clegg, Richard M. Pope, Harry W. Schroeder, S. Louis Bridges, David S. Pisetsky, Ryk Ward, Daniel L. Kastner, Ronald L. Wilder, Theodore Pincus, Leigh F. Callahan, Donald J. Flemming, Mark H. Wener, Peter K. Gregersen - The American Journal of Human Genetics 2001 cited by 364

  17. Variation in Genetic Diversity across the Range of North American Brown Bears

    Authors: David Paetkau, Lisette P. Waits, Peter L. Clarkson, Lance Craighead, E. R. Vyse, Ryk Ward, Curtis Strobeck - Conservation Biology 1998 cited by 256

  18. mtDNA and the Origin of the Icelanders: Deciphering Signals of Recent Population History

    Authors: Agnar Helgason, Sigrún Sigurðardóttir, Jeffrey R. Gulcher, Ryk Ward, Kāri Stefánsson - The American Journal of Human Genetics 2000 cited by 253

  19. Genetic and linguistic differentiation in the Americas.

    Authors: Ryk Ward, Alan J. Redd, D. Valencia, B L Frazier, Svante Pääbo - National Academy of Sciences, Proceedings of the National Academy of Sciences 1993 cited by 242

  20. Apolipoprotein A-I Gene Polymorphism Associated with Premature Coronary Artery Disease and Familial Hypoalphalipoproteinemia

    Authors: José M. Ordovás, Ernst J. Schaefer, Deeb N. Salem, Ryk Ward, Charles J. Glueck, Carlo Vergani, Peter W.F. Wilson, Sotirios K. Karathanasis - New England Journal of Medicine 1986 cited by 205

  21. Data linkage methods used in maternally‐linked birth and infant death surveillance data sets from the United States (Georgia, Missouri, Utah and Washington State), Israel, Norway, Scotland and Western Australia

    Authors: Allen Herman, Brian J. McCarthy, Janice Bakewell, Ryk Ward, Beth A. Mueller, Noreen Maconochie, Anne W. Read, Pnina Zadka, Rolv Skj ×lig rven - Paediatric and Perinatal Epidemiology 1997 cited by 144

  22. Genetic evidence for a family-based Scandinavian settlement of Shetland and Orkney during the Viking periods

    Authors: Sara L. Goodacre, Agnar Helgason, Jane Nicholson, Lorraine Southam, Laura Ferguson, Eileen Hickey, Emilce Vega, Kāri Stefánsson, Ryk Ward, B.A. E. R. SYKES - Heredity 2005 cited by 101

  23. Haplotypic analysis of the TNF locus by association efficiency and entropy

    Authors: Hans Ackerman, Stanley Usen, Richard Mott, Anna Richardson, Fatoumatta Sisay-Joof, Pauline Katundu, Terrie E. Taylor, Ryk Ward, Malcolm E. Molyneux, Margaret Pinder, Dominic Kwiatkowski - Genome biology 2003 cited by 76

  24. mtDNA and the Islands of the North Atlantic: Estimating the Proportions of Norse and Gaelic Ancestry

    Authors: Agnar Helgason, Eileen Hickey, Sara L. Goodacre, Vidar Bosnes, Kāri Stefánsson, Ryk Ward, Bryan Sykes - The American Journal of Human Genetics 2001 cited by 296