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United States Department of Agriculture

Agricultural Research Service

Related Topics

Todd J Ward
Bacterial Foodborne Pathogens & Mycology Research Unit
Research Leader

Phone: (309) 681-6394
Fax: (309) 681-6672
Room 2057A
USDA, ARS, MWA, NCAUR, BFPM
1815 N UNIVERSITY ST
PEORIA, IL, 61604-3999

Projects
COMPARATIVE GENOMIC SYSTEMS FOR MOLECULAR DETECTION AND CONTROL OF TOXIGENIC FUSARIUM
Appropriated (D)
  Accession Number: 421049
Genomic Analyses and Management of Agricultural and Industrial Microbial Genetic Resources and Associated Information
Appropriated (D)
  Accession Number: 424489
SEQUENCING AND ANALYSIS OF FUSARIUM GENOMIC DIVERSITY
Specific Cooperative Agreement (S)
  Accession Number: 423190

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Insights into the evolution of mycotoxin biosynthesis in the fungus Fusarium - (Abstract Only)
Proctor, R., Lee, T., Amatulli, M.T., McCormick, S.P., Brown, D.W., Busman, M., Maragos, C.M., Ward, T.J. 2014. Insights into the evolution of mycotoxin biosynthesis in the fungus Fusarium [abstract]. American Phytopathological Society.
Polyglycine hydrolases secreted by pathogenic fungi - (Abstract Only)
Naumann, T.A., Wicklow, D.T., Ward, T.J., Naldrett, M.J., Price, N.P. 2014. Polyglycine hydrolases secreted by pathogenic fungi [abstract]. Symposium of The Protein Society.
A North American isolate of Fusarium graminearum: toxicity and biosynthesis of a new type A trichothecene - (Abstract Only)
Wiesenberger, G., Varga, E., Hametner, C., Stuckler, R., Kistler, H.C., Ward, T.J., Schofbeck, D., Krska, R., Schuhmacher, R., Berthiller, F., Adam, G. 2014. A North American isolate of Fusarium graminearum: toxicity and biosynthesis of a new type A trichothecene [abstract]. International Congress on Molecular Plant-Microbe.
North American isolates of Fusarium graminearum produce a novel type A trichothecene - (Abstract Only)
Wiesenberger, G., Varga, E., Hametner, C., Stuckler, R., Kistler, H.C., Ward, T.J., Schofbeck, D., Schuhmacher, R., Berthiller, F., Adam, G. 2014. North American isolates of Fusarium graminearum produce a novel type A trichothecene [abstract]. Mycotoxin Workshop.
Update on the status of NRRL - (Abstract Only)
Ward, T.J. 2014. Update on the status of NRRL [abstract]. USCCN.
Population Structure of Listeria monocytogenes Serotype 4b Isolates from Sporadic Human Listeriosis in the United States, 2003-2008 - (Peer Reviewed Journal)
Lee, S., Ward, T.J., Graves, L.M., Tarr, C., Siletzky, R.M., Kathariou, S. 2014. Population structure of Listeria monocytogenes serotype 4b isolates from sporadic human Listeriosis in the United States, 2003-2008. Applied and Environmental Microbiology. 80(12):3632-3644.
Composition of the Fusarium graminearum species complex populations in wheat cropping environments in Southern Brazil - (Abstract Only)
Del Ponte, E.M., Ward, T.J., Spolti, P., Gomes, L., Nicolli, C.P., Kuhnem, P.R., Silva, C.N., Tessman, D.J. 2013. Composition of the Fusarium graminearum species complex populations in wheat cropping environments in Southern Brazil [abstract]. Brazilian Phytopathological Meeting.
Survey and competition assay data suggest species-specific difference in host/niche adaptation influence the distribution of Fusarium graminearum species complex pathogens in Brazil - (Abstract Only)
Spolti, P., Kuhnem, P.R., Ward, T.J., Del Ponte, E.M. 2013. Survey and competition assay data suggest species-specific difference in host/niche adaptation influence the distribution of Fusarium graminearum species complex pathogens in Brazil. Meeting Abstract.
Species diversity, pathogenicity and toxigenicity of Fusarium associated with rice seeds in Brazil - (Abstract Only)
Gomes, L.B., Buttner, V.Z., Furlong, E.B., Ward, T.J., Del Ponte, E.M. 2013. Species diversity, pathogenicity and toxigenicity of Fusarium associated with rice seeds in Brazil [abstract]. Brazilian Phytopathological Meeting.
Species and trichothecene genotypes of the Fusarium graminearum species complex causing head blight of wheat in Rio Grande do Sul State, 2011 season - (Abstract Only)
Nicollli, C.P., Spolti, P., Gomes, L.B., Ward, T.J., Del Ponte, E.M. 2013. Species and trichothecene genotypes of the Fusarium graminearum species complex causing head blight of wheat in Rio Grande do Sul State, 2011 season [abstract]. Brazilian Phytopathological Meeting.
Fusarium spp. associated with head blight of wheat in South Africa - (Abstract Only)
Van Coller, G.J., Boutigny, A., Rose, L., Ward, T.J., Lamprecht, S.C., Viljoen, A. 2013. Fusarium spp. associated with head blight of wheat in South Africa [abstract]. International Congress of Plant Pathology.
Diversity of the Fusarium graminearum species complex on French cereals - (Peer Reviewed Journal)
Boutigny, A., Ward, T.J., Ballois, N., Iancu, G., Ioos, R. 2014. Diversity of the Fusarium graminearum species complex on French cereals. European Journal of Plant Pathology. 138(1):133-148.
Birth, death and horizontal transfer of the fumonisin biosynthetic gene cluster during the evolutionary diversification of Fusarium - (Peer Reviewed Journal)
Proctor, R., Van Hove, F., Susca, A., Stea, G., Busman, M., van der Lee, T., Waalwijk, C., Moretti, A., Ward, T.J. 2013. Birth, death and horizontal transfer of the fumonisin biosynthetic gene cluster during the evolutionary diversification of Fusarium. Molecular Microbiology. 90(2):290–306.
Regional differences in species composition and toxigenic potential among Fusarium head blight isolates from Uruguay indicate a risk of nivalenol contamination in new wheat production areas - (Peer Reviewed Journal)
Umpierrez-Failache, M., Garmendia, G., Pereyra, S., Rodriquez-Haralambides, A., Ward, T.J., Vero, S. 2013. Regional differences in species composition and toxigenic potential among Fusarium head blight isolates from Uruguay indicate a risk of nivalenol contamination in new wheat production areas. International Journal of Food Microbiology. 166(2013):135-140.
Overview of the ARS Culture Collection - (Abstract Only)
Ward, T.J. 2013. Overview of the ARS Culture Collection. Meeting Abstract.
Culture Collections and Public Health Research - (Abstract Only)
Ward, T.J. 2013. Culture Collections and Public Health Research. Meeting Abstract.
The impact of culture collections on molecular identification, taxonomy, and solving real problems - (Abstract Only)
Geiser, D.M., Kang, S., Ward, T.J., O'Donnell, K., Robert, V., Crous, P.W. 2013. The impact of culture collections on molecular identification, taxonomy, and solving real problems. Meeting Abstract.
Analysis of the Fusarium graminearum species complex in Brazil shows high diversity and changes in species prevalence affected by host and geographic region - (Abstract Only)
Del Ponte, E.M., Ward, T.J., Tessman, D.J., Kuhnem, P.R., Silva, C.N., Gomes, L.B., Spolti, P., Nicoli, C.P. 2013. Analysis of the Fusarium graminearum species complex in Brazil shows high diversity and changes in species prevalence affected by host and geographic region. Meeting Abstract.
Head blight of wheat in South Africa is associated with numerous Fusarium species and chemotypes - (Abstract Only)
Van Coller, G.J., Boutigny, A., Ward, T.J., Lamprecht, S.C., Viljoen, A. 2013. Head blight of wheat in South Africa is associated with numerous Fusarium species and chemotypes. Meeting Abstract.
Genetic determinants for cadmium and arsenic resistance among Listeria monocytogenes serotype 4b isolates from sporadic human listeriosis patients - (Peer Reviewed Journal)
Lee, S., Rakic-Martinez, M., Graves, L.M., Ward, T.J., Siletzky, R.M., Kathariou, S. 2013. Genetic determinants for cadmium and arsenic resistance among Listeria monocytogenes serotype 4b isolates from sporadic human listeriosis patients. Applied and Environmental Microbiology. 79(7):2471-2476.
Phylogenetic analyses of RPB1 and RPB2 support a middle Cretaceous origin for a clade comprising all agriculturally and medically important fusaria - (Peer Reviewed Journal)
O'Donnell, K., Rooney, A.P., Proctor, R., Brown, D.W., McCormick, S.P., Ward, T.J., Frandsen, R.N., Lysoe, E., Rehner, S.A., Aoki, T., et al. 2013. Phylogenetic analyses of RPB1 and RPB2 support a middle Cretaceous origin for a clade comprising all agriculturally and medically important fusaria. Fungal Genetics and Biology. 52:20-31.
One Fungus, One Name: Defining the genus Fusarium in a scientifically robust way that preserves longstanding use - (Other)
Geiser, D.M., Aoki, T., Bacon, C.W., Baker, S.E., Bhattacharyya, M.K., Brandt, M.E., Brown, D.W., Burgess, L.W., Coleman, J.J., Correll, J.C., Covert, S.F., Crous, P.W., Cuomo, C.A., De Hoog, G., Elmer, W.H., Epstein, L., Frandsen, R.J., Freeman, S., Glenn, A.E., Gordon, T.R., Hanson, L.E., Del Mar Jimenez-Gasc, M., Kang, S., Kistler, J., Kuldau, G.A., McCormick, S.P., O'Donnell, K., Proctor, R., Rehner, S.A., Robert, V.A., Rooney, A.P., Thrane, U., Van Diepeningen, A., Ward, T.J., Wingfield, M.J., Yang, X, et. al. 2013. One Fungus, One Name: Defining the genus Fusarium in a scientifically robust way that preserves longstanding use. Phytopathology. 103(5):400-408.
Insights into the evolution of toxin biosynthesis in the fungus Fusarium - (Abstract Only)
Proctor, R., Van Hove, F., Susca, A., Stea, G., Busman, M., Van Der Lee, T., Waalwijk, C., Moretti, A., Ward, T.J. 2012. Insights into the evolution of toxin biosynthesis in the fungus Fusarium. Meeting Abstract.
Diversity of the Fusarium complex on French maize - (Abstract Only)
Ballois, N., Boutigny, A., Ward, T.J., Gourdain, E., Ioos, R. 2013. Diversity of the Fusarium complex on French maize. Meeting Abstract.
Heavy metal and disinfectant resistance of Listeria monocytogenes from foods and food processing plants - (Peer Reviewed Journal)
Ratani, S.S., Siletzky, R.M., Dutta, V., Yildirim, S., Osborne, J.A., Lin, W., Hitchins, A.D., Ward, T.J., Kathariou, S. 2012. Heavy metal and disinfectant resistance of Listeria monocytogenes from foods and food processing plants. Applied and Environmental Microbiology. 78(19):6938-6945.
Evidence for birth-and-death evolution of a secondary metabolite biosynthetic gene cluster and its relocation within and between genomes of the filamentous fungus Fusarium - (Abstract Only)
Proctor, R., Van Hove, F., Susca, A., Stea, G., Busman, M., Van Der Lee, T., Waalwijk, C., Ward, T.J., Moretti, A. 2012. Evidence for birth-and-death evolution of a secondary metabolite biosynthetic gene cluster and its relocation within and between genomes of the filamentous fungus Fusarium. Meeting Abstract.
Systematics, Phylogeny and Trichothecene Mycotoxin Potential of Fusarium Head Blight Cereal Pathogens - (Review Article)
Aoki, T., Ward, T.J., Kistler, H.C., O'Donnell, K. 2012. Systematics, phylogeny and trichothecene mycotoxin potential of Fusarium head blight cereal pathogens. Mycotoxins. 62(2):91-102.
The Fusarium graminearum species complex comprises at least 16 phylogenetically distinct head blight pathogens - (Abstract Only)
Aoki, T., Ward, T.J., Kistler, H.C., O Donnell, K. 2012. The Fusarium graminearum species complex comprises at least 16 phylogenetically distinct head blight pathogens. Meeting Abstract.
Evidence for birth-and-death evolution and horizontal transfer of the fumonisin mycotoxin biosynthetic gene cluster in Fusarium - (Abstract Only)
Proctor, R., Van Hove, F., Susca, A., Stea, G., Busman, M., Van Der Lee, T., Waalwijk, C., Moretti, A., Ward, T.J. 2013. Evidence for birth-and-death evolution and horizontal transfer of the fumonisin mycotoxin biosynthetic gene cluster in Fusarium. Fungal Genetics Conference/Asilomar.
Two novel type II restriction-modification (RM) systems occupying genomically equivalent locations on the chromosomes of Listeria monocytogenes strains - (Peer Reviewed Journal)
Lee, S., Ward, T.J., Siletzky, R.M., Kathariou, S. 2012. Two novel type II restriction-modification (RM) systems occupying genomically equivalent locations on the chromosomes of Listeria monocytogenes strains. Applied and Environmental Microbiology. 78(8):2623-2630.
Atypical Listeria monocytogenes Serotype 4b strains harboring a lineage II-specific gene cassette - (Peer Reviewed Journal)
Lee, S., Ward, T.J., Siletzky, R.M., Kathariou, S., Graves, L., Sperry, K., Wolf, L. 2012. Atypical Listeria monocytogenes Serotype 4b strains harboring a lineage II-specific gene cassette. Applied and Environmental Microbiology. 78(3):660-667.
Novel fusarium head blight pathogens from Nepal and Louisiana revealed by multilocus genealogical concordance - (Peer Reviewed Journal)
Sarver, B.A., Ward, T.J., Gale, L.R., Broz, K.L., Kistler, H.C., Aoki, T., Nicholson, P., Carter, J., O Donnell, K. 2011. Novel fusarium head blight pathogens from Nepal and Louisiana revealed by multilocus genealogical concordance. Fungal Genetics and Biology. 48(12):1077-1152.
Systematics, Phylogeny and Trichothecene Mycotoxin potential of Fusarium head blight cereal pathogens - (Abstract Only)
Aoki, T., Ward, T.J., Gale, L.R., O Donnell, K. 2011. Systematics, Phylogeny and Trichothecene Mycotoxin potential of Fusarium head blight cereal pathogens. Meeting Abstract.
Systematics, phylogeny and trichothecene mycotoxin potential of fusarium head blight cereal pathogens - (Abstract Only)
Aoki, T., Ward, T.J., Kistler, H.C., Gale, L.R., O Donnell, K. 2011. Systematics, phylogeny and trichothecene mycotoxin potential of fusarium head blight cereal pathogens. Meeting Abstract.
Variability in mycotoxin biosynthetic genes in Fusarium and its effect on mycotoxin contamination of crops - (Abstract Only)
Proctor, R., Mccormick, S.P., Alexander, N.J., Busman, M., Ward, T.J. 2011. Variability in mycotoxin biosynthetic genes in Fusarium and its effect on mycotoxin contamination of crops. Meeting Abstract.
Listeria monocytogenes - (Book / Chapter)
Ward, T.J. 2013. Identification and subtyping of Listeria monocytogenes. In: de Fillipis, I., McKee, M.L., editors. Molecular Typing in Bacterial Infections. New York, NY: Springer Science and Business Media. p. 27-38.
Analysis of the Fusarium graminearum species complex from wheat, barley, and maize in South Africa provides evidence of species-specific differences in host preference - (Peer Reviewed Journal)
Boutigney, A., Ward, T.J., Van Coller, G.J., Flett, B., Lamprecht, S.C., O Donnell, K., Viljoen, A. 2011. Analysis of the Fusarium graminearum species complex from wheat, barley, and maize in South Africa provides evidence of species-specific differences in host preference. Fungal Genetics and Biology. 48(9):914-920.
Outbreak of Nosocomial Listeriosis — Texas, 2010 - (Abstract Only)
Farag, N., Gaul, L., Silk, B.J., Trees, E., Kingsley, M., Graves, L., Ward, T.J. 2011. Outbreak of Nosocomial Listeriosis — Texas, 2010. Epidemic Intelligence Service Conference.
Global molecular surveillance provides a framework for understanding diversity within the Fusarium graminearum species complex - (Abstract Only)
Ward, T.J., O Donnell, K., Sampietro, D., Boutigny, A., Viljoen, A. 2011. Global molecular surveillance provides a framework for understanding diversity within the Fusarium graminearum species complex. Meeting Abstract.
Fusarium sibiricum sp. nov, a novel type A trichothecene-producing Fusarium from northern Asia closely related to F. sporotrichioides and F. langsethiae - (Peer Reviewed Journal)
Yli-Mattila, T., Ward, T.J., O Donnell, K., Proctor, R., Burkin, A., Kononenko, G., Gavrilova, O., Aoki, T., McCormick, S.P., Gagkaeva, T. 2011. Fusarium sibiricum sp. nov, a novel type A trichothecene-producing Fusarium from northern Asia closely related to F. sporotrichioides and F. langsethiae. International Journal of Food Microbiology. 147(1):58-68.
Outbreak of invasive listeriosis associated with the consumption of hog head cheese, Louisiana, 2010 - (Peer Reviewed Journal)
Delaune, E., Sokol, T., Ratard, R., Kissler, B., Allen, L., Seys, S., Ward, T.J., Silk, B., Jackson, K., Graves, L., Trees, E. 2011. Outbreak of invasive listeriosis associated with the consumption of hog head cheese, Louisiana, 2010. Morbidity and Mortality Weekly Reports. 60:401-405.
Species diversity and toxigenic potential of Fusarium graminearum complex isolates from maize fields in northwest Argentina Reprint Icon - (Peer Reviewed Journal)
Sampietro, D.A., Diaz, C.G., Gonzalez, V., Vattuone, M.A., Plopper, L.D., Catalan, C.N., Ward, T.J. 2011. Species diversity and toxigenic potential of Fusarium graminearum complex isolates from maize fields in northwest Argentina. International Journal of Food Microbiology. 145(1):359-364.
A subset of the newly discovered Northland population of Fusarium graminearum from the U.S. does not produce the B-type trichothecenes DON, 15ADON, 3ADON or NIV - (Abstract Only)
Gale, L.R., Ward, T.J., Kistler, H.C. 2010. A subset of the newly discovered Northland population of Fusarium graminearum from the U.S. does not produce the B-type trichothecenes DON, 15ADON, 3ADON or NIV. Meeting Abstract.
Cyber-infrastructure for Fusarium (CiF): Three integrated platforms supporting strain identification, phylogenetics, comparative genomics, and knowledge sharing - (Peer Reviewed Journal)
Park, B., Park, J., Cheong, K., Choi, J., Jung, K., Lee, Y., Ward, T.J., O Donnell, K., Geiser, D.M., Kang, S. 2010. Cyber-infrastructure for Fusarium (CiF): Three integrated platforms supporting strain identification, phylogenetics, comparative genomics, and knowledge sharing. Nucleic Acids Research. DOI: 10.1093/nar/gkq1166.
Nivalenol-type populations of Fusarium graminearum and F. asiaticum are prevalent on wheat in Southern Louisiana - (Peer Reviewed Journal)
Gale, L.R., Harrison, S.A., Ward, T.J., O Donnell, K., Milus, E.A., Gale, S.W., Kistler, H.C. 2011. Nivalenol-type populations of Fusarium graminearum and F. asiaticum are prevalent on wheat in Southern Louisiana. Phytopathology. 101(1):124-134.
A Population Genetics Framework for Understanding Aggressiveness and Toxigenicity of Fusarium Head Blight Pathogens - (Abstract Only)
Ward, T.J. 2010. A Population Genetics Framework for Understanding Aggressiveness and Toxigenicity of Fusarium Head Blight Pathogens. American Phytopathological Society Annual Meeting.
A Multilocus Genealogical Concordance Approach to Species Delimitation within the Fusarium graminearum Species Complex of Cereal Head Blight Pathogens - (Abstract Only)
O Donnell, K., Ward, T.J., Rooney, A.P., Kistler, H.C., Gale, L.R., Aoki, T., Geiser, D.M., Nicholson, P., Sarver, B.A. 2010. A Multilocus Genealogical Concordance Approach to Species Delimitation within the Fusarium graminearum Species Complex of Cereal Head Blight Pathogens. International Congress of Mycology Proceedings and Abstracts.
A Targeted Multilocus Genotyping Assay for Lineage, Serogroup, and Epidemic Clone Typing of Listeria monocytogenes - (Peer Reviewed Journal)
Ward, T.J., Usgaard, T.R., Evans, P. 2010. A targeted multilocus genotyping assay for lineage, serogroup, and epidemic clone typing of Listeria monocytogenes. Applied and Environmental Microbiology. 76(19):6680-6684.
A Comparison of Aggressiveness and Deoxynivalenol Production Between Canadian Fusarium graminearum Isolates with 3-Acetyl and 15-Acetyldeoxynivalenol Chemotypes in Field-Grown Spring Wheat - (Peer Reviewed Journal)
Von Der Ohe, C., Gauthier, V., Tamburic-Ilincic, L., Brule-Babel, A., Fernando, D.W., Clear, R., Ward, T.J., Miedaner, T. 2010. A Comparison of Aggressiveness and Deoxynivalenol Production Between Canadian Fusarium graminearum Isolates with 3-Acetyl and 15-Acetyldeoxynivalenol Chemotypes in Field-Grown Spring Wheat. European Journal of Plant Pathology. 127(3):407-417.
Revelation by Single-Nucleotide Polymorphism Genotyping That Mutations Leading to a Premature Stop Codon in inlA Are Common among Listeria monocytogenes Isolates from Ready-to-Eat Foods but Not Human Listeriosis Cases - (Peer Reviewed Journal)
Van Stelten, A., Simpson, J.M., Ward, T.J., Wiedmann, M., Nightingale, K.K. 2010. Revelation by Single-Nucleotide Polymorphism Genotyping That Mutations Leading to a Premature Stop Codon in inlA Are Common among Listeria monocytogenes Isolates from Ready-to-Eat Foods but Not Human Listeriosis Cases. Applied and Environmental Microbiology. 76(9):2783-2790.
Molecular and Phenotypic Characterization of Listeria monocytogenes from U.S. Department of Agriculture Food Safety Inspection Service Surveillance of Ready-to-Eat Foods and Processing Facilities - (Peer Reviewed Journal)
Ward, T.J., Evans, P., Wiedmann, M., Usgaard, T.R., Roof, S.E., Stroika, S.G., Hise, K. 2010. Molecular and Phenotypic Characterization of Listeria monocytogenes from U.S. Department of Agriculture Food Safety Inspection Service Surveillance of Ready-to-Eat Foods and Processing Facilities. Journal of Food Protection. 73(5):861-869.
Relative Aggressiveness and Production of 3- or 15-acetyl Deoxynivalenol and Deoxynivalenol by Fusarium graminearum in Spring Wheat Reprint Icon - (Peer Reviewed Journal)
Gilbert, J., Clear, R.M., Ward, T.J., Gaba, D., Tekauz, A., Turkington, T.K., Woods, S.M., Nowicki, T., O Donnell, K. 2010. Relative aggressiveness and production of 3- or 15-acetyl deoxynivalenol and deoxynivalenol by Fusarium graminearum in spring wheat. Canadian Journal of Plant Pathology. 32(2):146.152.
Biogeography of Trichothecene Chemotypes, and the Origins of North American 3ADON Populations - (Abstract Only)
Ward, T.J. 2009. Biogeography of Trichothecene Chemotypes, and the Origins of North American 3ADON Populations. Meeting Abstract.
Comparison of the Fungicide Sensitivity of Alberta and Prince Edward Island Isolates of Fusarium graminearum Producing Either 3- or 15-acetyl Deoxynivalenol - (Abstract Only)
Turkington, T.K., Clear, R., Gilbert, J., Nowicki, T., O Donnell, K., Tekauz, A., Ward, T.J., Rooney, A.P., Gebbinck-Klein, H., Martin, R.A. 2009. Comparison of the Fungicide Sensitivity of Alberta and Prince Edward Island Isolates of Fusarium graminearum Producing Either 3- or 15-acetyl Deoxynivalenol. The Canadian Workshop on Fusarium Head Blight.
A Comparison of the Aggressiveness and Deoxynivalenol Content of Canadian 3-acetyl and 15-acetyldeoxynivalenol Producers of Fusarium graminearum in Fieldgrown Spring Wheat - (Abstract Only)
Knopf, C., Gauthier, V., Tamburic-Ilincic, L., Brule-Babel, A., Fernando, W.D., Clear, R., Ward, T.J., Miedaner, T. 2009. A Comparison of the Aggressiveness and Deoxynivalenol Content of Canadian 3-acetyl and 15-acetyldeoxynivalenol Producers of Fusarium graminearum in Fieldgrown Spring Wheat. The Canadian Workshop on Fusarium Head Blight.
Reconciling ecological and genomic divergence among lineages of listeria under an ‘‘extended mosaic genome concept’’ Reprint Icon - (Peer Reviewed Journal)
Dunn, K.A., Bielawski, J.P., Ward, T.J., Urquhart, C., Gu, H. 2009. Reconciling ecological and genomic divergence among lineages of listeria under an ‘‘extended mosaic genome concept’’. Molecular Biology and Evolution. 26(11):2605-2615.
Utilization of a multiplex single nucleotide polymorphism (SNP) genotyping assay to determine the prevalence of virulence-attenuating mutations in inlA among human clinical and food isolates - (Abstract Only)
Van Stelten, A., Ward, T.J., Wiedmann, M., Nightingale, K.K. 2009. Utilization of a multiplex single nucleotide polymorphism (SNP) genotyping assay to determine the prevalence of virulence-attenuating mutations in inlA among human clinical and food isolates. Meeting Abstract.
A Novel Asian Clade Within the Fusarium graminearum Species Complex Includes a Newly Discovered Cereal Head Blight Pathogen from the Far East of Russia - (Peer Reviewed Journal)
Yli-Mattila, T., Gagkaeva, T., Ward, T.J., Aoki, T., Kistler, H.C., O Donnell, K. 2009. A Novel Asian Clade Within the Fusarium graminearum Species Complex Includes a Newly Discovered Cereal Head Blight Pathogen from the Far East of Russia. Mycologia. 101(6):841-852.
Spatial and temporal differences in the frequency of 3ADON-producing Fusarium graminearum populations in Canadian wheat - (Abstract Only)
Ward, T.J., Clear, R.M., O Donnell, K., Rooney, A.P. 2009. Spatial and temporal differences in the frequency of 3ADON-producing Fusarium graminearum populations in Canadian wheat. Meeting Abstract.
A novel Asian clade within the Fusarium graminearum species complex includes a newly discovered cereal head blight pathogen from the Far East of Russia - (Abstract Only)
Yli-Mattila, T., Gagkaeva, T., Ward, T.J., Aoki, T., Kistler, H.C., O Donnell, K. 2009. A novel Asian clade within the Fusarium graminearum species complex includes a newly discovered cereal head blight pathogen from the Far East of Russia. Meeting Abstract.
Cyberinfrastructure for Fusarium (CiF) - (Abstract Only)
Kang, S., Park, J., Park, B., Blair, J.E., O Donnell, K., Ward, T.J., Jung, K., Lee, Y., Geiser, D.M. 2009. Cyberinfrastructure for Fusarium (CiF). Meeting Abstract.
Multilocus Genotyping Assays for SNP-based Subtyping of Listeria monocytogenes - (Peer Reviewed Journal)
Ward, T.J., Ducey, T.F., Usgaard, T.R., Dunn, K.A., Bielawski, J.P. 2008. Multilocus Genotyping Assays for SNP-based Subtyping of Listeria monocytogenes. Applied and Environmental Microbiology. 74(24):7629-7642.
Multilocus Genotyping and Molecular Phylogenetics Resolve a Novel Head Blight Pathogen within the Fusarium graminearum Species Complex from Ethiopia - (Peer Reviewed Journal)
O Donnell, K., Ward, T.J., Aberra, D., Kistler, H.C., Aoki, T., Orwig, N.G., Kimura, M., Bjornstad, A., Klemsdal, S.S. 2008. Multilocus Genotyping and Molecular Phylogenetics Resolve a Novel Head Blight Pathogen within the Fusarium graminearum Species Complex from Ethiopia. Fungal Genetics and Biology. 45(11):1514-1522.
Evolutionary analyses of Listeria monocytogenes and application to molecular subtyping - (Abstract Only)
Ward, T.J. 2008. Evolutionary analyses of Listeria monocytogenes and application to molecular subtyping. Meeting Abstract.
Birth-and-Death Evolution of the Internalin Multigene Family in Listeria - (Peer Reviewed Journal)
Rooney, A.P., Ward, T.J. 2008. Birth-and-Death Evolution of the Internalin Multigene Family in Listeria. Gene. 427(1-2):124-128.
A novel species within the Fusarium graminearum complex from Ethiopia detected by a multilocus genotyping assay and molecular phylogenetics - (Abstract Only)
O Donnell, K., Ward, T.J., Aberra, D., Aoki, T., Kistler, H.C., Bjornstad, A., Klemsdal, S.S. 2008. A novel species within the Fusarium graminearum complex from Ethiopia detected by a multilocus genotyping assay and molecular phylogenetics. Meeting Abstract.
Trichothecene chemotype composition of Fusarium graminearum and related species in Finland and Russia - (Abstract Only)
O Donnell, K., Ward, T.J. 2008. Trichothecene chemotype composition of Fusarium graminearum and related species in Finland and Russia. Meeting Abstract.
Spore development and trichothecene mutants of Fusarium graminearum - (Abstract Only)
Gale, L.R., Harrison, S.A., Milus, G.A., Ochocki, G.E., O Donnell, K., Ward, T.J., Kistler, H.C. 2007. Spore Development and Trichothecene Mutants of Fusarium graminearum [abstract]. Proceedings of the National Fusarium Head Blight Forum. p. 26.
An adaptive evolutionary shift in Fusarium head blight pathogen populations is driving the rapid spread of more toxigenic Fusarium graminerarum in North America - (Peer Reviewed Journal)
Ward, T.J., Clear, R.M., Rooney, A.P., O Donnell, K., Gaba, D., Patrick, S., Starkey, D.E., Gilbert, J., Geiser, D.M., Nowicki, T.W. 2008. An adaptive evolutionary shift in Fusarium head blight pathogen populations is driving the rapid spread of more toxigenic Fusarium graminerarum in North America. Fungal Genetics and Biology. 45(4):473-484.
Molecular characterization of the Fusarium graminearum species complex in Japan - (Peer Reviewed Journal)
Suga, H., Karugia, G.W., Ward, T.J., Gale, L.R., Tomimura, K., Nakajima, T., Miyasaka, A., Koizumi, S., Kageyama, K., Hyakumachi, M. 2008. Molecular Characterization of the Fusarium graminearum Species Complex in Japan. Phytopathology. 98(2):159-166.
The Fusarium graminearum genome reveals a link between localized polymorphism and pathogen specialization - (Peer Reviewed Journal)
Cuomo, C.A., Guldener, U., Xu, J., Trail, F., Turgeon, B., Di Pietro, A., Walton, J.D., Ma, L., Baker, S.E., Rep, M., Adam, G., Antoniw, J., Baldwin, T., Calvo, S., Chang, Y., Decaprio, D., Gale, L., Gnerre, S., Goswami, R.S., Hammond-Kosack, K., Harris, L.J., Hilburn, K.L., Kennell, J., Kroken, S., Magnuson, J.K., Mannhaupt, G., Mauceli, E., Mewes, H., Mitterbauer, R., Muehlbauer, G., Munsterkotter, M., Nelson, D., O Donnell, K., Ouellet, T., Qi, W., Quesneville, H., Roncero, M.G., Seong, K., Tetko, I.V., Urban, M., Waalwijk, C., Ward, T.J., Yao, J., Birren, B.W., Kistler, H.C. 2007. The Fusarium graminearum genome reveals a link between localized polymorphism and pathogen specialization. Science. 317(5843):1400-1402.
Population subdivision of Fusarium graminearum sensu stricto in the Upper Midwestern United States - (Peer Reviewed Journal)
Gale, L.R., Ward, T.J., Balmas, V., Kistler, H.C. 2007. Population subdivision of Fusarium graminearum sensu stricto in the Upper Midwestern United States. Phytopathology. 97(11):1434-1439.
Phylogenetic diversity and microsphere array-based genotyping of human pathogenic Fusaria, including isolates from the multistate contact lens-associated U.S. keratitis outbreaks of 2005 and 2006 - (Peer Reviewed Journal)
O Donnell, K., Sarver, B., Brandt, M., Chang, D.C., Nobel-Wang, J., Park, B.J., Sutton, D., Benjamin, L., Lindsley, M., Padhye, A., Geiser, D.M., Ward, T.J. 2007. Phylogenetic diversity and microsphere array-based genotyping of human pathogenic Fusaria, including isolates from the multistate contact lens-associated U.S. keratitis outbreaks of 2005 and 2006. Journal of Clinical Microbiology. 45(7):2235-2248.
Global Molecular Surveillance Reveals Novel Fusarium Head Blight Species and Trichothecene Toxin Diversity - (Peer Reviewed Journal)
Starkey, D.E., Ward, T.J., Aoki, T., Gale, L.R., Kistler, H.C., Geiser, D.M., Suga, H., Toth, B., Varga, J., O Donnell, K. 2007. Global molecular surveillance reveals novel Fusarium head blight species and trichothecene toxin diversity. Fungal Genetics and Biology. 44(11):1191-1204.
A Single-Nucleotide-Polymorphism-BASED MULTILOCUS GENOTYPING ASSAY FOR SUBTYPING LINEAGE I ISOLATES OF LISTERIA MONOCYTOGENES - (Peer Reviewed Journal)
Ducey, T.F., Page, B., Usgaard, T.R., Borucki, M.K., Pupedis, K., Ward, T.J. 2007. A single-nucleotide-polymorphism-based multilocus genotyping assay for subtyping lineage I isolates of Listeria monocytogenes. Applied and Environmental Microbiology. 73(1):133-147.
The Presence of Gc-Ag Introns in N. Crassa and Other Euascomycetes Determined from Analysis of Complete Genomes: Implications for Automated Gene Prediction - (Peer Reviewed Journal)
Rep, M., Duyvesteijn, R.G., Gale, L., Usgaard, T.R., Cornelissen, B.J., Ma, L., Ward, T.J. 2006. The presence of GC-AG introns in N. crassa and other Euascomycetes determined from analysis of complete genomes: Implications for automated gene prediction. Genomics. 87:338-347.
Trichothecene and Zearalenone Production in Culture, by Isolates of Fusarium Pseudograminearum from Western Canada - (Peer Reviewed Journal)
Clear, R.M., Patrick, S.K., Gaba, D., Roscoe, M., Turkington, T.K., Demeke, T., Pouleur, S., Couture, L., Ward, T.J., O Donnell, K. 2006. Trichothecene and zearalenone production in culture, by isolates of Fusarium pseudograminearum from western Canada. Canadian Journal of Plant Pathology. 28:131-136.
Chromosome Complement of the Fungal Plant Pathogen Fusarium Graminearum Based on Genetic and Physical Mapping and Cytological Observations - (Peer Reviewed Journal)
Gale, L.R., Bryant, J., Calvo, S., Giese, H., Katan, T., O Donnell, K., Suga, H., Taga, M., Usgaard, T.R., Ward, T.J., Kistler, H.C. 2005. Chromosome complement of the fungal plant pathogen Fusarium graminearum based on genetic and physical mapping and cytological observations. Genetics. 171:985-1001.
Suspension Microarray with Dendrimer Signal Amplification Allows Direct and High Throughput Subtyping of Listeria Monocytogenes from Genomic DNA - (Peer Reviewed Journal)
Borucki, M.K., Reynolds, J.O., Call, D., Ward, T.J., Page, B.T., Kadushin, J. 2005. Suspension Microarray with Dendrimer Signal Amplification Allows Direct and High-Throughput Subtyping of Listeria monocytogenes from Genomic DNA. Journal of Clinical Microbiology. 43(7):3255-3259.
Fusarium Graminearum in the U.S.: Heterogeneous and in Flux - (Abstract Only)
Gale, L.R., Bryant, J.D., Ochocki, G.E., Ward, T.J., Kistler, H.C. 2005. Fusarium graminearum in the U.S.: Heterogeneous and in flux [abstract]. Fungal Genetics Newsletter 52 (Suppl):63.
A Genetic Map of Gibberella Zeae Using Sequence-Tagged Sites and Aflps. - (Abstract Only)
Gale, L.R., Bryant, J.D., Giese, H., Katan, T., O Donnell, K., Suga, H., Usgaard, T.R., Ward, T.J., Kistler, H.C. A genetic map of Gibberella zeae using sequence-tagged sites and aflps [abstract]. Fungal Genetics Newsletter 52 (Suppl):82.
Evolution of a Large Ribosomal Rna Multigene Family in Filamentous Fungi: Birth and Death of a Concerted Evolution Paradigm - (Peer Reviewed Journal)
Rooney, A.P., Ward, T.J. 2005. Evolution of a large Ribosomal RNA multigene family in filamentous fungi: Birth and death of concerted evolution paradigm. Proceedings of the National Academy of Sciences. 102(14):5084-5089.
Genomics of Fusarium Graminearum - (Abstract Only)
Kistler, H.C., Birren, B., Calvo, S., Cuomo, C., Gale, L.R., Gueldener, U., Ma, L., Muehlbauer, G., O Donnell, K., Trail, F., Ward, T.J., Xu, J. 2004. Genomics of fusarium graminearum. In: Proceedings of the 2nd International Symposium on Fusarium Head Blight, December 11-15, 2004, Orlando, FL, p.4.
The Use of Hplc-Ms to Characterize Toxin-Production from Fusaria Based on New Phylogenetic Concepts Within the Genus. - (Abstract Only)
ZITOMER, N.C., GEISER, D.M., WARD, T.J., JIMINEZ-GASCO, M., ARCHIBALD, D.D., O DONNELL, K., KULDAU, G.A. THE USE OF HPLC-MS TO CHARACTERIZE TOXIN-PRODUCTION FROM FUSARIA BASED ON NEW PHYLOGENETIC CONCEPTS WITHIN THE GENUS.. AMERICAN PHYTOPATHOLOGICAL SOCIETY ABSTRACTS. 2004.
A Genetic Map of Fusarium Graminearum Using Sequenced-Tagged Sites and Aflp Markers - (Abstract Only)
GALE, L.R., BRYANT, J.D., GIESE, H., KATAN, T., O DONNELL, K., SUGA, H., USGAARD, T.R., WARD, T.J., KISTLER, H.C. A GENETIC MAP OF FUSARIUM GRAMINEARUM USING SEQUENCED-TAGGED SITES AND AFLP MARKERS. AMERICAN PHYTOPATHOLOGICAL SOCIETY ABSTRACTS. 2004.
Intraspecific Phylogeny and Lineage Group Identification Based on the Prfa Virulence Gene Cluster of Listeria Monocytogenes - (Peer Reviewed Journal)
Ward, T.J., Gorski, L.A., Borucki, M.K., Mandrell, R.E., Hutchins, J., Pupedis, K. 2004. Intraspecific phylogeny and lineage group identification based on the Prfa virulence gene cluster of Listeria monocytogenes. Journal of Bacteriology. 2004. 186(15):4994-5002.
Genealogical Concordance Between the Mating Type Locus and Seven Other Nuclear Genes Support Formal Recognition of Nine Phylogenetically Distinct Species Within the Fusarium Graminearum Clade - (Peer Reviewed Journal)
O Donnell, K., Ward, T.J., Geiser, D.M., Kistler, H.C., Aoki, T. 2004. Genealogical concordance between the mating type locus and seven other nuclear genes support formal recognition of nine phylogenetically distinct species within the Fusarium graminearum clade. Fungal Genetics and Biology. 41:600-623.
Fusarium-Id V.1.0: a DNA Sequence Database for Identifying Fusarium - (Peer Reviewed Journal)
Geiser, D.M., Delmar Jimenez-Gasco, M., Kang, S., Makalowska, I., Veeraraghavan, N., Ward, T.J., Zhang, N., Kuldau, G.A., O Donnell, K. 2004. Fusarium-ID v.1.0: a DNA sequence database for identifying Fusarium. European Journal of Plant Pathology. 110(4):473-479.
Global Genetic Diversity of Fusarium Graminearum Clade Species and Their Mycotoxin Potential - (Abstract Only)
O Donnell, K., Ward, T.J., Geiser, D.M., Kistler, H.C., Gale, L.R., Aoki, T. 2003. Global genetic diversity of fusarium graminearum clade species and their mycotoxin potential [abstract]. National Fusarium Head Blight Forum Proceedings. p. 149.
Detection of Distinct Subpopulations of Fusarium Graminearum, Lineage 7 - (Abstract Only)
Gale, L.R., Ward, T.J., Balmas, V., Kistler, H.C. 2003. Detection of distinct subpopulations of fusarium graminearum, lineage 7 [abstract]. National Fusarium Head Blight Forum Proceedings. p. 139.
Whole Genome Sequence of Fusarium Graminearum, Lineage 7 - (Abstract Only)
Kistler, H.C., Birren, B., Calvo, S., Galagan, J., Gale, L.R., Ma, L., Muehlbauer, G., O Donnell, K., Trail, F., Ward, T.J., Xu, J. 2003. Whole genome sequence of fusarium graminearum, lineage 7 [abstract]. National Fusarium Head Blight Forum Proceedings. p. 141.
Population Subdivision in Fusarium Graminearum Leneage 7 in the United States Is Correlated with Toxin Chemotype - (Abstract Only)
Gale, L.R., Ward, T.J., Balas, V., Kistler, H.C. 2003. Population subdivision in Fusarium graminearum lineage 7 in the United States is correlated with toxin chemotype [abstract]. Fungal Genetics Newsletter. 50:145.
Isolation and Characterization of the Tri5-Cluster of Fusarium Graminearum F15 Required for 3-O-Acetyldeoxynivalenol Biosynthesis - (Peer Reviewed Journal)
KIMURA, M., TOKAI, T., O DONNELL, K., WARD, T.J., FUJIMURA, M., HAMAMOTO, H., SHIBATA, T., YAMAGUCHI, I. ISOLATION AND CHARACTERIZATION OF THE TRI5-CLUSTER OF FUSARIUM GRAMINEARUM F15 REQUIRED FOR 3-O-ACETYLDEOXYNIVALENOL BIOSYNTHESIS. APPLIED AND ENVIRONMENTAL MICROBIOLOGY. 2003. V. 539 (1-3). P. 105-110.
Discordant Evolution of Trichothecene Toxins and Species Within the Fusarium Graminearum Species Complex: Phylogenetic Evidence from Multigene Genealogies - (Abstract Only) - (30-Jan-03)
Evolution of the Fusarium Graminearum Species Complex - (Abstract Only) - (17-Aug-02)
Phylogenetic Species Recognition in Fusarium - (Abstract Only) - (02-Aug-02)
Ancient Polymorphism and Adaptive Evolution in the Trichothecene Mycotoxin Gene Cluster of Phytopathogenic Fusarium - (Abstract Only) - (03-Jul-02)
Evidence of Ancient Polymorphism and Adaptive Evolution in the Trichothecene Gene Cluster of Phytopathogenic Fusarium - (Peer Reviewed Journal)
WARD, T.J., BIELAWSKI, J.P., KISTLER, H.C., SULLIVAN, E., O DONNELL, K. EVIDENCE OF ANCIENT POLYMORPHISM AND ADAPTIVE EVOLUTION IN THE TRICHOTHECENE GENE CLUSTER OF PHYTOPATHOGENIC FUSARIUM. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES. 2002. V. 99 (14). P. 9278-9283.
Application of the Phylogenetic Species Concept in Fusarium - (Abstract Only) - (29-Aug-01)
Discordant Gene Genealogies and the Evolution of the Trichothecene Gene Cluster in Fusarium - (Abstract Only) - (18-Mar-01)
Evolutionary Relationships among Mucoralean Fungi (Zygomycota): Evidence for Family Polyphly on a Large Scale - (Peer Reviewed Journal) - (12-Sep-00)
ARS News Articles
Last Modified: 9/23/2014