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Valerie M. Williamson

D-Index & Metrics

Biology and Biochemistry

D-Index
60
Citations
12815
World Ranking
11955
National Ranking
5131

Valerie M. Williamson publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Valerie M. Williamson sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 116 publications — 10th percentile

10% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Valerie M. Williamson D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Valerie M. Williamson sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 60 D-Index — 41st percentile

41% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Research.com Recognitions

  • 2009 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

Valerie M. Williamson is affiliated with the University of California, Davis in the United States. Their research primarily falls within the field of Agricultural and Biological Sciences, with subfields including Plant Science, Insect Science, Molecular Biology, Infectious Diseases, and Catalysis.

The main topics addressed in Williamson's work encompass:

  • Nematode management and characterization studies
  • Legume Nitrogen Fixing Symbiosis
  • Plant Parasitism and Resistance
  • Plant-Microbe Interactions and Immunity
  • Banana Cultivation and Research
  • Cassava research and cyanide
  • Insect symbiosis and bacterial influences

Williamson's recent publications include the following:

  • "Plant metabolism of nematode pheromones mediates plant-nematode interactions," 2020, Nature Communications
  • "Recognition and Response in Plant-Nematode Interactions," 2022, Annual Review of Phytopathology
  • "Response of soybean cyst nematode (Heterodera glycines) and root-knot nematodes (Meloidogyne spp.) to gradients of pH and inorganic salts," 2020, Plant and Soil
  • "Root-knot nematodes produce functional mimics of tyrosine-sulfated plant peptides," 2023, Proceedings of the National Academy of Sciences
  • "Toward genetic modification of plant-parasitic nematodes: delivery of macromolecules to adults and expression of exogenous mRNA in second stage juveniles," 2021, G3 Genes Genomes Genetics

Frequent coauthors in Williamson's work are:

  • Shahid Siddique
  • Henok Zemene Yimer
  • Alison Coomer Blundell
  • Adam Taranto
  • Dadong Dai

The scientist frequently publishes in the following venues:

  • bioRxiv (Cold Spring Harbor Laboratory)
  • Nature Communications
  • Annual Review of Phytopathology
  • Plant and Soil
  • Proceedings of the National Academy of Sciences

Valerie M. Williamson has been recognized as a Fellow of the American Association for the Advancement of Science (AAAS) since 2009.

Best Publications

  • The root knot nematode resistance gene Mi from tomato is a member of the leucine zipper, nucleotide binding, leucine-rich repeat family of plant genes.

    Stephen B. Milligan;John Bodeau;Jafar Yaghoobi;Isgouhi Kaloshian

  • The nematode resistance gene Mi of tomato confers resistance against the potato aphid

    Magdalena Rossi;Fiona L. Goggin;Stephen B. Milligan;Isgouhi Kaloshian

  • Nematode Pathogenesis and Resistance in Plants

    Valerie Moroz Williamson;Richard S. Hussey

  • The root-knot nematode resistance gene Mi-1.2 of tomato is responsible for resistance against the whitefly Bemisia tabaci.

    Gloria Nombela;Valerie M. Williamson;Mariano Muñiz

  • Sequence and genetic map of Meloidogyne hapla: A compact nematode genome for plant parasitism

    Charles H. Opperman;David M. Bird;Valerie M. Williamson;Dan S. Rokhsar

  • Plant-nematode interactions

    Valerie M Williamson;Cynthia A Gleason

  • Nematode resistance in plants: the battle underground

    Valerie M. Williamson;Amar Kumar;Amar Kumar

  • A PCR-based marker tightly linked to the nematode resistance gene, Mi, in tomato.

    Williamson Vm;Ho Jy;Wu Ff;Miller N

  • Conserved nematode signalling molecules elicit plant defenses and pathogen resistance

    Patricia Manosalva;Patricia Manosalva;Murli Manohar;Stephan H. von Reuss;Shiyan Chen

  • Root-knot nematode resistance genes in tomato and their potential for future use.

    Valerie M. Williamson

  • Evidence for a Role of the N Terminus and Leucine-Rich Repeat Region of the Mi Gene Product in Regulation of Localized Cell Death

    Chin-Feng Hwang;Amit V. Bhakta;Gina M. Truesdell;Waclawa M. Pudlo

  • Salicylic acid is part of the Mi-1-mediated defense response to root-knot nematode in tomato

    Craig Branch;Chin-Feng Hwang;Duroy A. Navarre;Valerie M. Williamson

  • Leucine-rich repeat-mediated intramolecular interactions in nematode recognition and cell death signaling by the tomato resistance protein Mi

    Chin-Feng Hwang;Valerie M. Williamson

  • Application of Pluronic gel to the study of root-knot nematode behaviour

    Congli Wang;Steven Lower;Valerie M. Williamson

  • Genetic and physical localization of the root-knot nematode resistance locus Mi in tomato.

    I. Kaloshian;J. Yaghoobi;T. Liharska;J. Hontelez

  • Plant nematode resistance genes

    Valerie M Williamson

  • Mapping a new nematode resistance locus in Lycopersicon peruvianum

    J. Yaghoobi;I. Kaloshian;Y. Wen;V. M. Williamson

  • Isolation of the structural gene for alcohol dehydrogenase by genetic complementation in yeast.

    Valerie M. Williamson;Jeffrey Bennetzen;Elton T. Young;Kim Nasmyth

  • The root-knot nematode resistance gene (Mi) in tomato: construction of a molecular linkage map and identification of dominant cDNA markers in resistant genotypes.

    Jeong-Yau Ho;R. Weide;H.M. Ma;M.F. van Wordragen

  • Phylogenetic analysis of nematodes of the genus Pratylenchus using nuclear 26S rDNA

    Luma Al-Banna;Valerie M Williamson;Scott Lyell Gardner

Frequent Co-Authors

Isgouhi Kaloshian
Isgouhi Kaloshian University of California, Riverside
Pierre Abad
Pierre Abad INRAE : Institut national de recherche pour l'agriculture, l'alimentation et l'environnement
Daniel F. Klessig
Daniel F. Klessig Boyce Thompson Institute
Frank C. Schroeder
Frank C. Schroeder Boyce Thompson Institute
John T. Jones
John T. Jones James Hutton Institute
Roy H. Doi
Roy H. Doi University of California, Davis
Barbara Baker
Barbara Baker University of California, Berkeley
Eric A. Miska
Eric A. Miska University of Cambridge
Mark Blaxter
Mark Blaxter Wellcome Sanger Institute
Thomas J. Baum
Thomas J. Baum Iowa State University

External Links

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Best Scientists Citing Valerie M. Williamson

Pierre Abad

Pierre Abad

INRAE : Institut national de recherche pour l'agriculture, l'alimentation et l'environnement

Publications: 64

Thomas J. Baum

Thomas J. Baum

Iowa State University

Publications: 47

Etienne G. J. Danchin

Etienne G. J. Danchin

INRAE : Institut national de recherche pour l'agriculture, l'alimentation et l'environnement

Publications: 45

John T. Jones

John T. Jones

James Hutton Institute

Publications: 43

Philippe Castagnone-Sereno

Philippe Castagnone-Sereno

Centre national de la recherche scientifique, CNRS

Publications: 41

Godelieve Gheysen

Godelieve Gheysen

Ghent University

Publications: 38

Aska Goverse

Aska Goverse

Wageningen University & Research

Publications: 33

Isgouhi Kaloshian

Isgouhi Kaloshian

University of California, Riverside

Publications: 32

Melissa G. Mitchum

Melissa G. Mitchum

University of Missouri

Publications: 29

Geert Smant

Geert Smant

Wageningen University & Research

Publications: 29

Richard S. Hussey

Richard S. Hussey

University of Georgia

Publications: 29

Eric L. Davis

Eric L. Davis

North Carolina State University

Publications: 28

Peter E. Urwin

Peter E. Urwin

University of Leeds

Publications: 22

Richard G. F. Visser

Richard G. F. Visser

Wageningen University & Research

Publications: 21

Karam B. Singh

Karam B. Singh

Commonwealth Scientific and Industrial Research Organisation

Publications: 21

Sergei A. Subbotin

Sergei A. Subbotin

California Department of Food and Agriculture

Publications: 21

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