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.

2016

  • Alahakoon, U.I., Taheri, A., Nayidu, N., Epp, D.J., Yu, M., Parkin, I.A.P., Hegedus, D.D., Bonham-Smith, P.C., and Gruber, M.Y. (2016). "Hairy Canola (Brasssica napus) re-visited: Down-regulating TTG1 in an AtGL3-enhanced hairy leaf background improves growth, leaf trichome coverage, and metabolite gene expression diversity/", BMC Plant Biology, 16(1: Article number 12), pp. 1-25. doi : 10.1186/s12870-015-0680-5

2015

2014

2013

2012

2011

2010

2009

Other Science Related Publications:

2015

  • Erlandson, M.A., Coutu, C., Holowachuk, J., Olfert, O.O., Gariepy, T.D., and Hegedus, D.D. (2015). "Developing genotyping-by-sequencing strategies for characterizing Mamestra configurata populations.", Joint Annual Meeting of Société d’entomologie du Québec and Entomological Society of Canada, Montreal, QC, Canada, November 8-11, 2015, Oral Presentation.
  • Erlandson, M.A., Harris, S., Sieminska, E.A., Baldwin, D., Hegedus, D.D., and Theilmann, D.A. (2015). "Inhibition of Cotesia vanessae development in Trichoplusia ni larvae infected with alphabaculoviruses from Mamestra configurata.", 48th Annual Meeting of the Society for Invertebrate Pathology and International Congress on Invertebrate Pathology and Microbial Control, Vancouver, B.C., Canada, August 9-13, 2015, Oral Presentation.
  • Fu, F., Rimmer, S.R., Lydiate, D.J., Hegedus, D.D., Parkin, I.A.P., Adam, J., Harrington, M., McGregor, L., and Buchwaldt, L. (2015). "Mapping of quantitative trait loci in Brassica napus lines from Pakistan and China providing resistance to the Sclerotinia sclerotiorum.", 14th International Rapeseed Congress, Saskatoon, SK, Canada, July 5-9, 2015. (Abstract)
  • Javed, M.A., Harris, S., Theilmann, D.A., Erlandson, M.A., and Hegedus, D.D. (2015). "AcMNPV infection process in Trichoplusia ni midgut.", 48th Annual Meeting of the Society for Invertebrate Pathology and International Congress on Invertebrate Pathology and Microbial Control, Vancouver, B.C., Canada, August 9-13, 2015. (Poster)
  • Theilmann, D.A., Willis, L.G., Weis, M.M., Donly, B.C., Hegedus, D.D., and Erlandson, M.A. (2015). "Analysis of occlusion derived virus infection in tissue culture using gene knock out viruses of the per os infectivity factors and GP64.", 48th Annual Meeting of the Society for Invertebrate Pathology and International Congress on Invertebrate Pathology and Microbial Control, Vancouver, B.C., Canada, August 9-13, 2015, Oral Presentation.

2014

  • Buchwaldt, L., Hegedus, D.D., Parkin, I.A.P., Vail, S.L., Fu, F., Garg, H., Gyawali, S., and Puri, K.D. (2014). "Dissecting quantitative resistance to sclerotinia in Brassica napus.", Applying Genomics to Canola Improvement Workshop, Saskatoon, SK, Canada, December 4, 2014, Invited oral presentation. (Abstract)
  • Erlandson, M.A., Donly, B.C., Theilmann, D.A., Hegedus, D.D., Coutu, C., and Baldwin, D. (2014). "Mamestra configurata nucleopolyhedrovirus-A transcriptome from infected host midgut.", 47th Annual Meeting of the Society for Invertebrate Pathology and International Congress on Invertebrate Pathology and Microbial Control, Johannes Gutenberg University, Mainz, Germany, August 3-7, 2014, oral presentation, pp. 80.
  • Erlandson, M.A., Donly, B.C., Theilmann, D.A., Hegedus, D.D., Coutu, C., and Baldwin, D. (2014). "Mamestra configurata nucleopolyhedrovirus-A transcriptome from infected host midgut.", 47th Annual Meeting of the Society for Invertebrate Pathology and International Congress on Invertebrate Pathology and Microbial Control, Mainz, Germany, August 3-7, 2014, Oral Presentation.
  • Gao, M-G., Li, X., Huang, J., Gropp, G.M., Lindsay, D., Gjetvaj, B., Wei, S., Wan, X-C., Chen, Z., Gruber, M.Y., Hannoufa, A., Lydiate, D.J., Chen, Z.J., and Hegedus, D.D. (2014). "SCARECROW-LIKE 15 interacts with HISTONE DEACETYLASE19 and is essential to the repression of the seed maturation program.", 25th International Conference on Arabidopsis Research, Vancouver, BC, Canada, July 28-August 1, 2014, #207. (Poster)
  • Harris, S., Sieminska, E., Theilmann, D.A., Hegedus, D.D., and Erlandson, M.A. (2014). "Interaction between baculovirus infection and Cotesia parasitism in Trichoplusia ni larvae.", 2014 Joint Annual Meeting of Entomological Society of Saskatchewan and Entomological Society of Canada, Saskatoon SK, Canada, September 28-October 1, 2014. (Poster)
  • Puri, K.D., Garg, H., Durkin, J.M.H., Hegedus, D.D., Harrington, M., Adam, J., Liabeuf, D., Gali, K.K., Sharpe, A.G., and Buchwaldt, L. (2014). "Genetic and pathogenic variability of Sclerotinia sclerotiorum from canola in Western Canada.", CPS Regional Meeting, Saskatchewan. SK, Canada. (Abstract)
  • Sieminska, E., Erlandson, M.A., Hegedus, D.D., and Gray, J. (2014). "Characterization of the pheromone communication channel in bertha armyworm, Mamestra configurata.", 2014 Joint Annual Meeting of Entomological Society of Saskatchewan and Entomological Society of Canada, Saskatoon SK, Canada, September 28-October 1, 2014. (Poster)

2013

  • Buchwaldt, L., Fu, F., Gyawali, S., Hegedus, D.D., and Parkin, I.A.P. (2013). "Towards identification of quantitative loci for sclerotinia resistance in Brassica napus germplasm and the underlying defense genes.", GCIRC Technical Meeting, Geneva, Switzerland, April 28- May 1, 2013. (Abstract)

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). "Characterization of S. sclerotiorum clones in western Canada for pathogenicity and genomic relatedness.", Canola Cluster update, Saskatoon, SK, Canada, March 21, 2012.
  • Buchwaldt, L., Lydiate, D.J., Yu, F.Q., Fu, F., Hegedus, D.D., Gyawali, S., Garg, H., and Rimmer, S.R. (2012). "Advances in sclerotinia resistance research.", Canola Industry Meeting, Garden Inn Hotel, Saskatoon, SK, Canada, December 5, 2012. (Presentation)
  • 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)
Date modified: