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John S. Gilleard

John S. Gilleard

D-Index & Metrics

Animal Science and Veterinary

D-Index
56
Citations
9543
World Ranking
433
National Ranking
32

Overview

John S. Gilleard is a researcher affiliated with the University of Calgary in Canada, specializing in fields related to veterinary science, environmental science, and immunology and microbiology. Their work spans multiple subfields including small animals, ecology, parasitology, plant science, and insect science.

The scientist's research topics concentrate primarily on helminth infection and control, parasite biology and host interactions, and nematode management and characterization studies. Additional areas of study include parasitic infections and diagnostics, environmental DNA in biodiversity studies, and coccidia and coccidiosis research.

Frequent coauthors in their research collaborations include Elizabeth Redman, Russell W. Avramenko, Ray M. Kaplan, Rebecca Chen, and Janneke Wit.

John S. Gilleard has published extensively in several scientific venues. Key journals where they have contributed notably include:

  • bioRxiv (Cold Spring Harbor Laboratory) with 12 publications
  • Veterinary Parasitology with 9 publications
  • International Journal for Parasitology Drugs and Drug Resistance with 8 publications
  • International Journal for Parasitology with 7 publications
  • Parasites & Vectors with 4 publications

Recent publications provide examples of their research output and focus areas. These include:

  • "World Association for the Advancement of Veterinary Parasitology (W.A.A.V.P.) guideline for diagnosing anthelmintic resistance using the faecal egg count reduction test in ruminants, horses and swine" (2023, Veterinary Parasitology)
  • "Genomic and transcriptomic variation defines the chromosome-scale assembly of Haemonchus contortus, a model gastrointestinal worm" (2020, Communications Biology)
  • "A database for ITS2 sequences from nematodes" (2020, BMC Genetics)
  • "A repeatable and quantitative DNA metabarcoding assay to characterize mixed strongyle infections in horses" (2020, International Journal for Parasitology)
  • "Challenges and opportunities for the adoption of molecular diagnostics for anthelmintic resistance" (2020, International Journal for Parasitology Drugs and Drug Resistance)

Best Publications

  • Acaricide resistance in cattle ticks and approaches to its management: The state of play

    Rao Z. Abbas;Muhammad Arfan Zaman;Muhammad Arfan Zaman;Douglas D. Colwell;John Gilleard

  • The genome and transcriptome of Haemonchus contortus, a key model parasite for drug and vaccine discovery

    Roz Laing;Taisei Kikuchi;Taisei Kikuchi;Axel Martinelli;Isheng J. Tsai;Isheng J. Tsai

  • Exploring the Gastrointestinal "Nemabiome": Deep Amplicon Sequencing to Quantify the Species Composition of Parasitic Nematode Communities.

    Russell W. Avramenko;Elizabeth M. Redman;Roy Lewis;Thomas A. Yazwinski

  • Caenorhabditis elegans is a useful model for anthelmintic discovery.

    Andrew R. Burns;Genna M. Luciani;Gabriel Musso;Gabriel Musso;Rachel Bagg

  • Understanding anthelmintic resistance: The need for genomics and genetics

    John Stuart Gilleard

  • cis regulatory requirements for hypodermal cell-specific expression of the Caenorhabditis elegans cuticle collagen gene dpy-7.

    J S Gilleard;J D Barry;I L Johnstone

  • Recent advances in candidate-gene and whole-genome approaches to the discovery of anthelmintic resistance markers and the description of drug/receptor interactions

    Andrew C. Kotze;Peter W. Hunt;Philip John Skuce;Georg von Samson-Himmelstjerna

  • World Association for the Advancement of Veterinary Parasitology (W.A.A.V.P.) guideline for diagnosing anthelmintic resistance using the faecal egg count reduction test in ruminants, horses and swine.

    Unknown

  • Botanicals: an alternative approach for the control of avian coccidiosis

    R.Z. Abbas;D.D. Colwell;J. Gilleard

  • RNA interference in parasitic helminths: current situation, potential pitfalls and future prospects.

    Peter Geldhof;Aline Visser;D Clark;G Saunders

  • Haemonchus contortus as a paradigm and model to study anthelmintic drug resistance.

    John S. Gilleard

  • Multiple drug resistance in the canine hookworm Ancylostoma caninum : an emerging threat?

    Pablo D. Jimenez Castro;Pablo D. Jimenez Castro;Sue B. Howell;John J. Schaefer;Russell W. Avramenko

  • The emergence of resistance to the benzimidazole anthlemintics in parasitic nematodes of livestock is characterised by multiple independent hard and soft selective sweeps.

    Elizabeth Redman;Fiona Whitelaw;Andrew Tait;Charlotte Burgess

  • Testing the efficacy of RNA interference in Haemonchus contortus.

    Peter Geldhof;Linda Murray;Annabelle Couthier;John S. Gilleard

  • The use of nemabiome metabarcoding to explore gastro-intestinal nematode species diversity and anthelmintic treatment effectiveness in beef calves

    Russell W. Avramenko;Elizabeth M. Redman;Roy Lewis;Murilo A. Bichuette

  • Population genetics of anthelmintic resistance in parasitic nematodes.

    J. S. Gilleard;R. N. Beech

  • Genomic and transcriptomic variation defines the chromosome-scale assembly of Haemonchus contortus, a model gastrointestinal worm.

    Stephen R. Doyle;Alan Tracey;Roz Laing;Nancy E. Holroyd

  • Anthelmintic resistance: markers for resistance, or susceptibility?

    R. N. Beech;P. Skuce;D. J. Bartley;R. J. Martin

  • Parasite prevalence in fecal samples from shelter dogs and cats across the Canadian provinces.

    Alain Villeneuve;Lydden Polley;Emily Jenkins;Janna Schurer

  • Deep amplicon sequencing as a powerful new tool to screen for sequence polymorphisms associated with anthelmintic resistance in parasitic nematode populations.

    Russell W. Avramenko;Elizabeth M. Redman;Lynsey Melville;Yvonne Bartley

  • A survey of the trichostrongylid nematode species present on UK sheep farms and associated anthelmintic control practices

    Charlotte G S Burgess;Yvonne Bartley;Elizabeth Redman;Philip J Skuce

  • Genetic Diversity and Population Structure of Haemonchus contortus.

    J S Gilleard;E Redman

  • Introgression of ivermectin resistance genes into a susceptible Haemonchus contortus strain by multiple backcrossing

    Elizabeth Redman;Neil Sargison;Fiona Whitelaw;Frank Jackson

Frequent Co-Authors

Elizabeth Redman
Elizabeth Redman University of Calgary
Neil Sargison
Neil Sargison University of Edinburgh
David J. Bartley
David J. Bartley Moredun Research Institute
Matthew Berriman
Matthew Berriman University of Glasgow
Alison A. Morrison
Alison A. Morrison Moredun Research Institute
James Cotton
James Cotton University of Glasgow
Eileen Devaney
Eileen Devaney University of Glasgow
Ray M. Kaplan
Ray M. Kaplan St. George's University
Philip Skuce
Philip Skuce Moredun Foundation
Bruno Levecke
Bruno Levecke Ghent University

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Related Online Degrees & Career Pathways

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