Hegedus, Dwayne, Ph.D.

Plant Protection and Molecular Biology


Contact Information:

107 Science Place
Saskatoon, Saskatchewan S7N 0X2
Telephone: 306-385-9427
Fax: 306-385-9482
Email: dwayne.hegedus@agr.gc.ca

Areas of Expertise:

  • Disease and insect resistance
  • Plant, fungal and insect molecular biology and biochemistry
  • Recombinant protein expression

Current Projects:

  • Platforms for the expression of recombinant proteins in seeds. The focus is on developing systems to reduce endogenous seed storage protein accumulation and studying the biology of seed protein trafficking and comparmentalization.
  • Insect genomics and proteomics platforms leading to the identification of novel targets and strategies for insect resistance. The focus is on insect digestive biochemistry.
  • Sclerotinia sclerotiorum-Brassica napus interactions and identification of genes/markers for stem rot resistance in canola.

Affiliations:

  • Adjunct Professor, Department of Food and Bio-Product Sciences, College of Agriculture, University of Saskatchewan, Saskatoon, SK, Canada

Research Publications:

The links below lead to abstracts with access to full text.

2014

  • Donly, B.C., Theilmann, D.A., Hegedus, D.D., Baldwin, D., and Erlandson, M.A. (2014). "Mamestra configurata nucleopolyhedrovirus-A transcriptome from infected host midgut.", Virus Genes, 48(1), pp. 174-183. doi : 10.1007/s11262-013-0986-z
  • Toprak, U., Hegedus, D.D., Baldwin, D., Coutu, C., and Erlandson, M.A. (2014). "Spatial and temporal synthesis of Mamestra configurata peritrophic matrix through a larval stadium.", Insect Biochemistry and Molecular Biology, 54, pp. 89-97. doi : 10.1016/j.ibmb.2014.09.002
  • Withana-Gamage, T.S., Hegedus, D.D., Qiu, X., and Wanasundara, P.K.J.P.D. (2014). "Solubility, Heat-Induced Gelation and Pepsin Susceptibility of Cruciferin Protein as Affected by Subunit Composition.", Food Biophysics. doi : 10.1007/s11483-014-9370-3

2013

2012

2011

2010

2009

Other Science Related Publications:

2012

  • Bahar, M.H., Soroka, J.J., Hegedus, D.D., and Dosdall, L.M. (2012). "Thermal tolerance and HSP70 gene expression in DBM and Diadegma insulare.", Entomological Society of Canada 62nd and Entomological Society of Alberta 60th joint Annual Meeting, Coast Edmonton Plaza Hotel, Edmonton, AB, Canada, November 4-7, 2012, #7. (Abstract)
  • Buchwaldt, L., Hegedus, D.D., and Parkin, I.A.P. (2012). "Advances in sclerotinia resistance research.", Canola Industry Meeting, Garden Inn Hotel, Saskatoon, SK, Canada, December 5, 2012. (Presentation)
  • Buchwaldt, L., Hegedus, D.D., and Parkin, I.A.P. (2012). "Characterization of S. sclerotiorum clones in western Canada for pathogenicity and genomic relatedness.", Canola Cluster update, Saskatoon, SK, Canada, March 21, 2012.
  • Gao, M.-J., Gropp, G.M., Wei, S., Hegedus, D.D., and Lydiate, D.J. (2012). "Combinatorial networks regulating seed development and seed filling.", in Sato, K.I. (ed.) - Embryogenesis, InTech, Open Access Publisher, Chapter 9, pp. 189-228.
  • Gao, M.-J., Li, X., Huang, J., Gjetvaj, B., Gropp, G.M., and Hegedus, D.D. (2012). "Negative regulation of the transition of seed maturation program to vegetative growth by SCL15.", 23rd International Conference on Arabidopsis Research (ICAR), Vienna, Austria, July 3-7 2012, P429. (Poster)
  • Hegedus, D.D., Buchwaldt, L., and Parkin, I.A.P. (2012). "Development of sclerotinia resistant Brassica napus lines and molecular markers for marker-assisted breeding.", Canola Cluster update, Saskatoon, SK, Canada, March 21, 2012.

2011

  • Buchwaldt, L., Hegedus, D.D., and Parkin, I.A.P. (2011). "Sclerotinia resistance in B. napus – an update.", Cargill, Aberdeen, SK, Canada, November 23, 2011. (Presentation)
  • Buchwaldt, L., Lydiate, D.J., Yu, F.Q., Hegedus, D.D., and Rimmer, S.R. (2011). "QTLs contributing to sclerotinia stem rot resistance in Brassica napus Zhongyou 821.", 13th International Rapeseed Congress, Prague, Czech Republic, June 5-9, 2011.
  • Fu, F., Harrington, M., Hegedus, D.D., Bekkaoui, D.R., Parkin, I.A.P., and Buchwaldt, L. (2011). "Co-location of defence genes from expression studies with QTLs conferring sclerotinia resitance in Brassica napus.", 8th Canadian Plant Genomics Workshop, Niagara Falls, ON, Canada, August 22-25, 2011. (Workshop)
  • Gyawali, S., Buchwaldt, L., Harrington, M., Parkin, I.A.P., Bekkaoui, D.R., Horner, K., Higgins, E.E., and Hegedus, D.D. (2011). "Association mapping of stem rot resistance in a world collection of Brassica napus.", American Phytopathological Society (APS) 2011 Joint Annual Meeting & International Association for the Plant Protection Sciences (IPPC), Honolulu, HI, USA, August 6-10, 2011.
  • Hannoufa, A., Wei, S., Gruber, M.Y., Khachatourians, G.G., Wang, Y., Hegedus, D.D., and Parkin, I.A.P. (2011). "MicroRNA156: A new player in regulating carotenoid accumulation in plants.", Canadian Society of Plant Physiologists Eastern Regional Meeting & Plant Development Workshop / Congrès de la Société Canadienne de Physiologie Végétale & Congrès de Développement Végétale (Congrès Régional de l’Est), Carleton University, Ottawa, ON, Canada, December 2-3, 2011, SB-1, pp. 17.
  • Hegedus, D.D., Buchwaldt, L., and Parkin, I.A.P. (2011). A genomics approach to sclerotinia resistance in Brassica napus. SaskCanola 20th Anniversary Research Summary., Agriculture and Agri-Food Canada (AAFC)/Agriculture et Agroalimentaire Canada (AAC). (Report)
  • Kutcher, H.R., Dokken-Bouchard, F.L., Turkington, T.K., Fernando, W.G.D., Boyetchko, S.M., Buchwaldt, L., Hegedus, D.D., and Parkin, I.A.P. (2011). "Managing sclerotinia stem rot in canola.", Canola Research Summit meeting, Winnipeg, MB, Canada, April 12-13, 2011.
  • Noakes, A.L., Gillott, C., Hegedus, D.D., Theilmann, D.A., and Erlandson, M.A. (2011). "Mamestra configurata nucleopolyhedrovirus (MacoNPV): potential chitin-binding proteins and their role in oral infectivity.", 44th Annual Meeting of the Society for Invertebrate Pathology, Halifax, NS, Canada, August 7-11, 2011.
  • Sanjeewa, W.G.T., Hegedus, D.D., Yu, P., Qiu, X., McIntosh, T.C., May, T.W., and Wanasundara, P.K.J.P.D. (2011). "Influence of seed storage protein composition on structural features of major crucifer proteins: Protein secondary structure study of Arabiopsis thaliana.", 102nd Annual Meeting of the American Oil Chemists' Society (AOCS) & Expo, Duke Energy Center, Cincinnati, OH, USA, May 1-4, 2011.

2010

  • Buchwaldt, L., Hegedus, D.D., and Parkin, I.A.P. (2010). "Sclerotinia research at AAFC, Saskatoon.", Canola Industry Meeting, Garden Inn Hotel, Saskatoon, SK, Canada, December 8, 2010. (Presentation)

2009

  • Zhao, J., Buchwaldt, L., Rimmer, S.R., Sharpe, A.G., McGregor, L., Bekkaoui, D.R., and Hegedus, D.D. (2009). "Patterns of gene expression in Brassica napus cultivars infected with Sclerotinia sclerotiorum.", 14th International Sclerotinia Workshop, Wilmington, NC, USA, May 31-June 4, 2009. (Workshop)
  • Zhao, J., Buchwaldt, L., Rimmer, S.R., Sharpe, A.G., McGregor, L., Bekkaoui, D.R., and Hegedus, D.D. (2009). "Patterns of gene expression in Brassica napus cultivars infected with Sclerotinia sclerotiorum.", 7th Canadian Plant Genomics Workshop, Sheraton Cavalier Hotel, Saskatoon, SK, Canada, August 24-27, 2009. (Workshop)