World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

D-Index
55
Citations
15237
World Ranking
1586
National Ranking
426

Research.com Recognitions

  • 1995 - Fellow of the American Association for the Advancement of Science (AAAS)

Best Publications

  • Host Specific Social Parasites ( Psithyrus ) Indicate Chemical Recognition System in Bumblebees

    Stephen J. Martin;Jonathan M. Carruthers;Paul H. Williams;Falko P. Drijfhout

  • Bumblebee vulnerability and conservation world-wide

    Paul H. Williams;Juliet L. Osborne

  • Black rot: a continuing threat to world crucifers.

    Paul H. Williams

  • Brassica taxonomy based on nuclear restriction fragment length polymorphisms (RFLPs) : 2. Preliminary analysis of subspecies within B. rapa (syn. campestris) and B. oleracea.

    K. M. Song;T. C. Osborn;P. H. Williams

  • A comprehensive phylogeny of the bumble bees (Bombus)

    S. A. Cameron;H. M. Hines;P. H. Williams

  • Planning for Climate Change: Identifying Minimum-Dispersal Corridors for the Cape Proteaceae

    Paul Williams;Lee Hannah;Sandy Andelman;Guy Midgley

  • Rapid-cycling populations of Brassica

    Paul H. Williams;Curtis B. Hill

  • A simplified subgeneric classification of the bumblebees (genus Bombus)

    Paul H. Williams;Sydney A. Cameron;Heather M. Hines;Bjorn Cederberg

  • The distribution of bumblebee colour patterns worldwide: possible significance for thermoregulation, crypsis, and warning mimicry

    Paul Williams

  • RFLP mapping of Brassica napus using doubled haploid lines.

    M. E. Ferreira;P. H. Williams;T. C. Osborn

  • Unveiling cryptic species of the bumblebee subgenus Bombus s. str. worldwide with COI barcodes (Hymenoptera: Apidae)

    Paul H Williams;Mark J F Brown;James C Carolan;Jiandong An

  • Mapping loci controlling vernalization requirement and flowering time in Brassica napus.

    M. E. Ferreira;J. Satagopan;B. S. Yandell;P. H. Williams

  • Glucosinolates in crucifer vegetables: broccoli, brussels sprouts, cauliflower, collards, kale, mustard greens, and kohlrabi

    D.G. Carlson;M.E. Daxenbichler;C.H. VanEtten;W.F. Kwolek

  • Bumblebee vulnerability: common correlates of winners and losers across three continents.

    Paul Williams;Sheila Colla;Zhenghua Xie

  • An evaluation of Fusarium oxysporum from crucifers based on pathogenicity, isozyme polymorphism, vegetative compatibility, and geographic origin

    Unknown

  • Mapping loci controlling Brassica napus resistance to Leptosphaeria maculans under different screening conditions.

    M. E. Ferreira;S. R. Rimmer;P. H. Williams;T. C. Osborn

  • Colour Patterns Do Not Diagnose Species: Quantitative Evaluation of a DNA Barcoded Cryptic Bumblebee Complex

    James C. Carolan;Tomás E. Murray;Tomás E. Murray;Úna Fitzpatrick;John Crossley

  • Global decline of bumblebees is phylogenetically structured and inversely related to species range size and pathogen incidence.

    Marina Paula Arbetman;Gabriela Laura Gleiser;Carolina Laura Morales;Paul Williams

  • Centres of seed-plant diversity : the family way

    Paul H. Williams;Chris J. Humphries;Kevin J. Gaston

  • The bumblebees of Sichuan (Hymenoptera: Apidae, Bombini)

    Paul Williams;Ya Tang;Jian Yao;Sydney Cameron

  • Biology of Leptosphaeria maculans

    Paul H. Williams

  • Mapping of a locus controlling resistance to Albugo candida in Brassica napus using molecular markers.

    M. E. Ferreira;P. H. Williams;T. C. Osborn

  • The exploration of genetic resources of Portuguese cabbage and kale for resistance to several Brassica diseases

    António A. Monteiro;Paul H. Williams

  • Fast plants for finer science—an introduction to the biology of rapid-cycling Brassica campestris (rapa) L.

    Stephen P. Tomkins;Paul H. Williams

  • Dwarf mutants of Brassica : Responses to applied gibberellins and gibberellin content

    Karen P. Zanewich;Stewart B. Rood;Carol E. Southworth;Paul H. Williams

  • Multiple-pathogen inoculation of cucumber (Cucumis sativus) seedlings

    A. J. Wyszogrodzka;P. H. Williams;C. E. Peterson

  • Search for resistance to gummy stem blight (Didymella bryoniae) in cucumber (Cucumis sativus L.)

    Anna J. Wyszogrodzka;Paul H. Williams;Clinton E. Peterson

  • A toothpick method for mating Leptosphaeria maculans, the causal agent of blackleg of crucifers

    A. Mengistu;C. B. Hill;P. H. Williams

  • Selection for resistance to Plasmodiophora brassicae Wor . in oriental subspecies of Brassica rapa L.

    Christopher B. Miller;Paul H. Williams

  • Chemistry and Breeding of Cruciferous Vegetables

    Paul H. Williams

  • EVALUATION OF RAPID CYCLING BRASSICA AS A CANDIDATE OILSEED CROP FOR CONTROLLED ECOLOGICAL LIFE SUPPORT SYSTEMS

    Jay Frick;Manette A. Schonfeld;Paul H. Williams;Cary A. Mitchell

Frequent Co-Authors

Thomas C. Osborn
Thomas C. Osborn University of Wisconsin–Madison
Stewart B. Rood
Stewart B. Rood University of Lethbridge
Curtis B. Hill
Curtis B. Hill University of Illinois at Chicago
Richard P. Pharis
Richard P. Pharis University of Calgary
Brian S. Yandell
Brian S. Yandell University of Wisconsin–Madison

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