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
2017
- Javed, M.A., Coutu, C., Theilmann, D.A., Erlandson, M.A., Hegedus, D.D. (2019). Proteomics analysis of Trichoplusia ni midgut epithelial cell brush border membrane vesicles, 26(3), 424-440. http://dx.doi.org/10.1111/1744-7917.12547
2016
- Alahakoon, U.I., Taheri, A., Nayidu, N.K., Epp, D., Yu, M., Parkin, I., Hegedus, D., Bonham-Smith, P., 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, 16(1), http://dx.doi.org/10.1186/s12870-015-0680-5
- Donly, B.C., Kaplanoglu, E., Theilmann, D.A., Baldwin, D., Sieminska, E., Hegedus, D.D., Erlandson, M.A. (2016). MacoNPV baculovirus midgut-specific gene expression during infection of the bertha armyworm, Mamestra configurata, 499 1-8. http://dx.doi.org/10.1016/j.virol.2016.09.001
- Global gene expression and secondary metabolite changes in Arabidopsis thaliana ABI4 over-expression lines
- Gyawali, S., Harrington, M., Durkin, J., Horner, K., Parkin, I.A.P., Hegedus, D.D., Bekkaoui, D., Buchwaldt, L. (2016). Microsatellite markers used for genome-wide association mapping of partial resistance to Sclerotinia sclerotiorum in a world collection of Brassica napus, 36(6), http://dx.doi.org/10.1007/s11032-016-0496-5
- Hegedus, D.D., Toprak, U., and Erlandson, M.A. (2016). "Lepidopteran peritrophic matrix composition, function, and formation.", in Chandrasekar, R., Goldsmith, M.R. and Agunbiade, T.A. (eds.) - Short Views on Insect Genomics and Proteomics, Volume 2, Springer-Verlag GmbH, pp. 63-88.
- Javed MA, Biswas S, Willis LG, Harris S, Pritchard C, van Oers MM, Donly BC, Erlandson MA, Hegedus DD, Theilmann DA. 2017. Autographa californica multiple nucleopolyhedrovirus AC83 is a per os infectivity factor (PIF) protein required for occlusion-derived virus (ODV) and budded virus nucleocapsid assembly as well as assembly of the PIF complex in ODV envelopes. J Virol 91:e02115-16.
- Javed, M.A., Harris, S., Willis, L.G., Theilmann, D.A., Donly, B.C., Erlandson, M.A., Hegedus, D.D. (2016). Microscopic investigation of AcMNPV infection in the Trichoplusia ni midgut, 141 24-33. http://dx.doi.org/10.1016/j.jip.2016.10.006
- Toprak, U., Erlandson, M., Baldwin, D., Karcz, S., Wan, L., Coutu, C., Gillott, C., Hegedus, D.D. (2016). Identification of the Mamestra configurata (Lepidoptera: Noctuidae) peritrophic matrix proteins and enzymes involved in peritrophic matrix chitin metabolism, 23(5), 656-674. http://dx.doi.org/10.1111/1744-7917.12225
2015
- Gao, M.J., Li, X., Huang, J., Gropp, G.M., Gjetvaj, B., Lindsay, D.L., Wei, S., Coutu, C., Chen, Z., Wan, X.C., Hannoufa, A., Lydiate, D.J., Gruber, M.Y., Chen, Z.J., Hegedus, D.D. (2015). SCARECROW-LIKE15 interacts with HISTONE DEACETYLASE19 and is essential for repressing the seed maturation programme, 6 http://dx.doi.org/10.1038/ncomms8243
- Hegedus, D.D., Coutu, C., Harrington, M., Hope, B., Gerbrandt, K., Nikolov, I. (2015). Multiple internal sorting determinants can contribute to the trafficking of cruciferin to protein storage vacuoles, 88(1-2), 3-20. http://dx.doi.org/10.1007/s11103-015-0297-y
- Hegedus, D.D., Gerbrandt, K., and Coutu, C. (2015). "The eukaryotic protein kinase superfamily of the necrotrophic fungal plant pathogen, Sclerotinia sclerotiorum.", Molecular Plant Pathology. doi : 10.1111/mpp.12321
- Nguyen, T.P., Cueff, G., Hegedus, D.D., Rajjou, L., Bentsink, L. (2015). A role for seed storage proteins in Arabidopsis seed longevity, 66(20), 6399-6413. http://dx.doi.org/10.1093/jxb/erv348
- Taylor, W.G., Sutherland, D.H., Zhang, H., Hegedus, D.D. (2015). Sequence determination by MALDI-TOF mass spectrometry of an insecticidal lentil peptide of the PA1b type, 12 105-112. http://dx.doi.org/10.1016/j.phytol.2015.03.003
- Withana-Gamage, T.S., Hegedus, D.D., Qiu, X., Wanasundara, J. (2015). Solubility, Heat-Induced Gelation and Pepsin Susceptibility of Cruciferin Protein as Affected by Subunit Composition, 10(2), 103-115. http://dx.doi.org/10.1007/s11483-014-9370-3
2014
- Donly, B.C., Theilmann, D.A., Hegedus, D.D., Baldwin, D., Erlandson, M.A. (2014). Mamestra configurata nucleopolyhedrovirus-A transcriptome from infected host midgut, 48(1), 174-183. http://dx.doi.org/10.1007/s11262-013-0986-z
- Hegedus, D.D., Baron, M., Labbe, N., Coutu, C., Lydiate, D.J., Liu, H.L., and Rozwadowski, K. (2014). "A strategy for targeting recombinant proteins to protein storage vacuoles by fusion to Brassica napus napin in napin-depleted seeds.", Protein Expression and Purification, 26(5), pp. 162-168.
- Nayidu, N.K., Tan, Y., Taheri, A., Li, X., Bjorndahl, T.C., Nowak, J., Wishart, D.S., Hegedus, D., Gruber, M.Y. (2014). Brassica villosa, a system for studying non-glandular trichomes and genes in the Brassicas, 85(4), 519-539. http://dx.doi.org/10.1007/s11103-014-0201-1
- Toprak, U., Coutu, C., Baldwin, D., Erlandson, M., Hegedus, D. (2014). Development of an improved RNA interference vector system for Agrobacterium-mediated plant transformation, 38(1), 40-47. http://dx.doi.org/10.3906/biy-1304-4
- Toprak, U., Guz, N., Gurkan, M.O., Hegedus, D.D. (2014). Identification and coordinated expression of perilipin genes in the biological cycle of sunn pest, Eurygaster maura (Hemiptera: Scutelleridae): Implications for lipolysis and lipogenesis, 171(1), 1-11. http://dx.doi.org/10.1016/j.cbpb.2014.02.001
- Toprak, U., Hegedus, D.D., Baldwin, D., Coutu, C., Erlandson, M. (2014). Spatial and temporal synthesis of Mamestra configurata peritrophic matrix through a larval stadium, 54 89-97. http://dx.doi.org/10.1016/j.ibmb.2014.09.002
2013
- Bahar, M.H., Hegedus, D., Soroka, J., Coutu, C., Bekkaoui, D., Dosdall, L. (2013). Survival and Hsp70 Gene Expression in Plutella xylostella and Its Larval Parasitoid Diadegma insulare Varied between Slowly Ramping and Abrupt Extreme Temperature Regimes, 8(9), http://dx.doi.org/10.1371/journal.pone.0073901
- Bashi, Z.D., Rimmer, S.R., Khachatourians, G.G., Hegedus, D.D. (2013). Brassica napus polygalacturonase inhibitor proteins inhibit Sclerotinia sclerotiorum polygalacturonase enzymatic and necrotizing activities and delay symptoms in transgenic plants, 59(2), 79-86. http://dx.doi.org/10.1139/cjm-2012-0352
- Gyawali, S., Hegedus, D.D., Parkin, I.A.P., Poon, J., Higgins, E., Horner, K., Bekkaoui, D., Coutu, C., Buchwaldt, L. (2013). Genetic diversity and population structure in a world collection of Brassica napus accessions with emphasis on South Korea, Japan, and Pakistan, 53(4), 1537-1545. http://dx.doi.org/10.2135/cropsci2012.10.0614
- Toprak, U., Baldwin, D., Erlandson, M., Gillott, C., Harris, S., Hegedus, D.D. (2013). In vitro and in vivo application of RNA interference for targeting genes involved in peritrophic matrix synthesis in a lepidopteran system, 20(1), 92-100. http://dx.doi.org/10.1111/j.1744-7917.2012.01562.x
- Toprak, U., Baldwin, D., Hegedus, D.D., and Erlandson, M.A. (2013). "Per os feeding with antisera specific to peritrophic matrix proteins stimulates larval growth in Mamestra configurata Walker (Lepidoptera: Noctuidae).", Turkish Journal of Entomology, 37(2), pp. 203-212.
- Withana-Gamage, T.S., Hegedus, D.D., Qiu, X., McIntosh, T., Wanasundara, J.P.D. (2013). Structural and physicochemical property relationships of cruciferin homohexamers, 61(24), 5848-5859. http://dx.doi.org/10.1021/jf400559x
- Withana-Gamage, T.S., Hegedus, D.D., Qiu, X., Yu, P., May, T., Lydiate, D., Wanasundara, J.P.D. (2013). Characterization of Arabidopsis thaliana lines with altered seed storage protein profiles using synchrotron-powered FT-IR spectromicroscopy, 61(4), 901-912. http://dx.doi.org/10.1021/jf304328n
2012
- Bashi, Z.D., Roger Rimmer, S., Khachatourians, G.G., Hegedus, D.D. (2012). Factors governing the regulation of Sclerotinia sclerotiorum cutinase a and polygalacturonase 1 during different stages of infection, 58(5), 605-616. http://dx.doi.org/10.1139/W2012-031
- 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.
- Gruber, M., Wu, L., Links, M., Gjetvaj, B., Durkin, J., Lewis, C., Sharpe, A., Lydiate, D., Hegedus, D. (2012). Analysis of expressed sequence tags in Brassica napus cotyledons damaged by crucifer flea beetle feeding, 55(2), 118-133. http://dx.doi.org/10.1139/g11-083
- Toprak, U., Harris, S., Baldwin, D., Theilmann, D., Gillott, C., Hegedus, D.D., Erlandson, M.A. (2012). Role of enhancin in mamestra configurata nucleopolyhedrovirus virulence: Selective degradation of host peritrophic matrix proteins, 93(4), 744-753. http://dx.doi.org/10.1099/vir.0.038117-0
- Wei, S., Gruber, M.Y., Yu, B., Gao, M.J., Khachatourians, G.G., Hegedus, D.D., Parkin, I.A.P., Hannoufa, A. (2012). Arabidopsis mutant sk156 reveals complex regulation of SPL15 in a miR156-controlled gene network, 12 http://dx.doi.org/10.1186/1471-2229-12-169
- Yu, B., Gruber, M.Y., Khachatourians, G.G., Zhou, R., Epp, D.J., Hegedus, D.D., Parkin, I.A.P., Welsch, R., Hannoufa, A. (2012). Arabidopsis cpSRP54 regulates carotenoid accumulation in Arabidopsis and Brassica napus, 63(14), 5189-5202. http://dx.doi.org/10.1093/jxb/ers179
2011
- Gao, M.J., Li, X., Lui, H., Gropp, G.M., Lydiate, D.D., Wei, S., Hegedus, D.D. (2011). ASIL1 is required for proper timing of seed filling in Arabidopsis, 6(12), 1886-1888. http://dx.doi.org/10.4161/psb.6.12.18709
- Li, X., Gruber, M.Y., Hegedus, D.D., Lydiate, D.J., Gao, M.J. (2011). Effects of a Coumarin Derivative, 4-Methylumbelliferone, on Seed Germination and Seedling Establishment in Arabidopsis, 37(8), 880-890. http://dx.doi.org/10.1007/s10886-011-9987-3
- Links, M.G., Holub, E., Jiang, R.H.Y., Sharpe, A.G., Hegedus, D., Beynon, E., Sillito, D., Clarke, W.E., Uzuhashi, S., Borhan, M.H. (2011). De novo sequence assembly of Albugo candida reveals a small genome relative to other biotrophic oomycetes, 12 http://dx.doi.org/10.1186/1471-2164-12-503
- Terenius, O., Papanicolaou, A., Garbutt, J.S., Eleftherianos, I., Huvenne, H., Kanginakudru, S., Albrechtsen, M., An, C., Aymeric, J.-L., Barthel, A., Bebas, P., Bitra, K., Bravo, A., Chevalier, F., Collinge, D.P., Crava, C.M., de Maagd, R.A., Duvic, B., Erlandson, M.A., Faye, I., Felföldi, G., Fujiwara, H., Futahashi, R., Gandhe, A.S., Gatehouse, H.S., Gatehouse, L.N., Giebultowicz, J.M., Gómez, I., Grimmelikhuijzen, C.J.P., Groot, A.T., Hauser, F., Heckel, D.G., Hegedus, D.D., Hrycaj, S., Huang, L., Hull, J.J., Iatrou, K., Iga, M., Kanost, M.R., Kotwica, J., Li, C., Li, J., Liu, J., Lundmark, M., Matsumoto, S., Meyering-Vos, M., Millichap, P.J., Monteiro, A., Mrinal, N., Niimi, T., Nowara, D., Ohnishi, A., Oostra, V., Ozaki, K., Papakonstantinou, M., Popadic, A., Rajam, M.V., Saenko, S., Simpson, A.J., Soberón, M., Strand, M.R., Tomita, S., Toprak, U., Wang, P., Wee, C.W., Whyard, S., Zhang, W., Nagaraju, J., Gordon, R.H.J., Herrerop, S., Gordon, K., Smagghe, G., and Swevers, L. (2011). "RNA interference in Lepidoptera: An overview of successful and unsuccessful studies and implications for experimental design.", Journal of Insect Physiology, 57(2), pp. 231-245. doi : 10.1016/j.jinsphys.2010.11.006
- Toprak, U., Erlandson, M.A., and Hegedus, D.D. (2011). "Peritrophic Matrix Proteins (http://www.intechopen.com/books/embryogenesis/combinatorial-networks-regulating-seed-development-and-seed-filling).", - Trends Entomology Vol. 6, pp. 23-51.
- Withana-Gamage, T.S., Hegedus, D.D., Qiu, X., Wanasundara, J.P.D. (2011). In silico homology modeling to predict functional properties of cruciferin, 59(24), 12925-12938. http://dx.doi.org/10.1021/jf201979a
2010
- Bashi, Z.D., Khachatourians, G., Hegedus, D.D. (2010). Isolation of fungal homokaryotic lines from heterokaryotic transformants by sonic disruption of mycelia, 48(1), 41-46. http://dx.doi.org/10.2144/000113243
- Dallal Bashi, Z., Hegedus, D.D., Buchwaldt, L., Rimmer, S.R., Borhan, M.H. (2010). Expression and regulation of Sclerotinia sclerotiorum necrosis and ethylene-inducing peptides (NEPs), 11(1), 43-53. http://dx.doi.org/10.1111/j.1364-3703.2009.00571.x
- Erlandson, M.A., Hegedus, D.D., Baldwin, D., Noakes, A., Toprak, U. (2010). Characterization of the Mamestra configurata (Lepidoptera: Noctuidae) larval midgut protease complement and adaptation to feeding on artificial diet, brassica species, and protease inhibitor, 75(2), 70-91. http://dx.doi.org/10.1002/arch.20381
- Hegedus, D.D. (2010). "pORE modular vectors for plant transformation.", in Stewart Jr., C.N., Touraev, A., Citovsky, V. and Tzfira, T. (eds.) - Plant Transformation Technologie, Wiley - Blackwell, pp. 149-160.
- Hegedus, D.D. and Erlandson, M.A. (2010). "Genetics and Genomics of Insect Resistance in Brassicaceae Crops.", in Edwards, D., Parkin, I. and Batley, J. (eds.) - Genetics, Genomics and Breeding in Crop Plant - Oilseed Brassicas, Science Publishers, Enfield, NH, USA, pp. 319-372.
- Toprak, U., Baldwin, D., Erlandson, M., Gillott, C., Harris, S., Hegedus, D.D. (2010). Expression patterns of genes encoding proteins with peritrophin A domains and protein localization in Mamestra configurata, 56(12), 1711-1720. http://dx.doi.org/10.1016/j.jinsphys.2010.06.016
- Toprak, U., Baldwin, D., Erlandson, M., Gillottt, C., Hegedus, D.D. (2010). Insect intestinal mucins and serine proteases associated with the peritrophic matrix from feeding, starved and moulting Mamestra configurata larvae, 19(2), 163-175. http://dx.doi.org/10.1111/j.1365-2583.2009.00966.x
- Wei, S., Yu, B., Gruber, M.Y., Khachatourians, G.G., Hegedus, D.D., Hannoufa, A. (2010). Enhanced seed carotenoid levels and branching in transgenic brassica napus expressing the arabidopsis miR156b gene, 58(17), 9572-9578. http://dx.doi.org/10.1021/jf102635f
- Yu, B., Gruber, M., Khachatourians, G.G., Hegedus, D.D., Hannoufa, A. (2010). Gene expression profiling of developing Brassica napus seed in relation to changes in major storage compounds, 178(4), 381-389. http://dx.doi.org/10.1016/j.plantsci.2010.02.007
2009
- Gao, M.J., Lydiate, D.J., Li, X., Lui, H., Gjetvaj, B., Hegedus, D.D., Rozwadowski, K. (2009). Repression of seed maturation genes by a trihelix transcriptional repressor in Arabidopsis seedlings, 21(1), 54-71. http://dx.doi.org/10.1105/tpc.108.061309
- Gruber, M.Y., Xu, N., Grenkow, L., Li, X., Onyilagha, J., Soroka, J.J., Westcott, N.D., Hegedus, D.D. (2009). Responses of the crucifer flea beetle to brassica volatiles in an olfactometer, 38(5), 1467-1479. http://dx.doi.org/10.1603/022.038.0515
- Hegedus, D.D., Erlandson, M.A., Gillott, C., and Toprak, U. (2009). "New Insights into Peritrophic Matrix Synthesis, Architecture, and Function.", Annual Review of Entomology, 54, pp. 285-302. doi : 10.1146/annurev.ento.54.110807.090559
- Xu, J., Baldwin, D., Kindrachuk, C., Hegedus, D.D. (2009). Comparative EST analysis of a Zoophthora radicans isolate derived from Pieris brassicae and an isogenic strain adapted to Plutella xylostella, 155(1), 174-185. http://dx.doi.org/10.1099/mic.0.022103-0
- Zhao, J., Buchwaldt, L., Rimmer, S.R., Brkic, M., Bekkaoui, D., Hegedus, D. (2009). Differential expression of duplicated peroxidase genes in the allotetraploid Brassica napus, 47(7), 653-656. http://dx.doi.org/10.1016/j.plaphy.2009.03.002
- Zhao, J., Buchwaldt, L., Rimmer, S.R., Sharpe, A., McGregor, L., Bekkaoui, D., Hegedus, D. (2009). Patterns of differential gene expression in Brassica napus cultivars infected with Sclerotinia sclerotiorum, 10(5), 635-649. http://dx.doi.org/10.1111/j.1364-3703.2009.00558.x
Other science related publications
2016
- Bahar, M.H., Coutu, C., Kagale, S., Soroka, J.J., and Hegedus, D.D. (2016). "Parasitization by an Ichneomonidae wasp results in general suppression of gene expressions in diamondback moth larvae.", International Congress of Entomology, Orlando, Florida, USA.
- Derbyshire, M., Denton-Giles, M., Hegedus, D.D., Rollins, J.A., van Kan, J., Seidl, M.T., Mbengue, M., Hammond-Kosack, K., Heard, S., and Oliver, R. (2016). "Improvement of the Sclerotinia sclerotiorum reference genome and gene models using PacBio and Illumina sequencing followed by characterisation of potential infection-related small RNAs.", European Fungal Genetics Conference, Paris, France.
- Donly, C., Kaplanoglu, E., Theilmann, D., Hegedus, D., Baldwin, D., Siemenska, E., Erlandson, M. (2016) Measuring the Mamestra configurata Nucleopolyhedrosis Virus Transcriptome: Personalized Insect Genomics. Insect Biotech Conference, St. Catharines, Ontario. 8-10 June 2016, oral presentation.
- Sieminska, E.A., Erlandson, M.A., Hegedus, D.D., and Gray, J. (2016). "Characterization of the pheromone communication channel in bertha armyworm, Mamestra configurata.", International Society for Chemical Ecology 2016, Brazil.
- Toprak, U., Erlandson, M.A., and Hegedus, D.D. (2016). "New insights into lepidopteran peritrophic matrix synthesis and structure.", International Congress of Entomology, Orlando, Florida, USA.
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)
- Kagale, S., Nixon, J.H., Khedikar, Y.P., Pasha, A., Provart, N.J., Bollina, V., Clark, W.E., Hegedus, D.D., Sharpe, A.G., and Parkin, I.A.P. (2015). "High-resolution developmental transcriptome of the biofuel crop Camelina sativa: a valuable resource for functional genomics.", 14th International Rapeseed Congress, Saskatoon, SK, Canada, July 5-9, 2015.
- Ozdemir, E., Toprak, U., Çavdar, S., Bekkaoui, D.R., and Hegedus, D.D. (2015). "New target sites in pest control: Examining the role of REPAT Proteins in defence against baculoviruses.", 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.
- Seifbarghi, S., Hegedus, D.D., Borhan, H., and Wei, Y. (2015). "Characterization of Sclerotinia sclerotiorum necrosis inducing proteins.", 14th International Rapeseed Congress, Saskatoon, SK, Canada, July 5-9, 2015.
- 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.
- Toprak, U., Erlandson, M.A., and Hegedus, D.D. (2015). "Relating peritrophic matrix structure and function to baculovirus efficacy.", Microbial Control Congress, Ankara, Turkey, Invited speaker.
- Toprak, U., Hegedus, D.D., Ozdemir, E., Baldwin, D., Coutu, C., Bekkaoui, D.R., Bayram, S., and Gurkan, M.O. (2015). "Peritrophic matrix proteomics of the cotton leaf worm, Spodoptera littoralis (Lepidoptera:Noctuidae): Targets for pathogens infecting per os.", 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.
2014
- Bahar, M.D., Olivier, C.Y., Bekkaoui, D.R., Soroka, J.J., and Hegedus, D.D. (2014). "Phytoplasma-leaf hopper-plant interactions in a changing climate.", Joint meeting, Entomological Society of Canada / Entomological Society of Saskatchewan, Saskatoon, Sask., Canada, September 30-October 1, 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.A., 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
- Bahar, M.H., Olivier, C.Y., Bekkaoui, D.R., Hegedus, D.D., and Soroka, J.J. (2013). "Detection, quantification and within-plant distribution of Aster Yellows Phytoplasmas through digital PCR(ddPCR).", 32nd New Phytologist Symposium on Plant interactions with other organisms: molecules, ecology and evolution, Universidad Católica, Puerto Madero Campus, Buenos Aires, Argentina, November 20-22, 2013.
- Bahar, M.H., Olivier, C.Y., Bekkaoui, D.R., Hegedus, D.D., and Soroka, J.J. (2013). "Phytoplasma dynamics in Aster Yellows-infested Brassica plants as determined by droplet digital PCR (ddPCR).", Canadian Phytopathological Society Saskatchewan Regional Group Annual Meeting, Saskatoon, Canada.
- 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)
- Buchwaldt, L., Hegedus, D.D., Lydiate, D.J., Parkin, I.A.P., Fu, F., Garg, H., Gyawali, S., and Rimmer, S.R. (2013). "Dissecting quantitative resistance to Sclerotinia sclerotiorum in Asian Brassica napus germplasm.", National Sclerotinia Initiative 9th Annual Meeting, Minneapolis, MN, USA, January 23-25, 2013.
- Donly, B.C., Theilmann, D.A., Hegedus, D.D., Baldwin, D., and Erlandson, M.A. (2013). "Viral transcription in caterpillar gut infected with the Mamestra configurata nucleopolyhedrosis virus.", Insect Biotech Conference 2013, St. Catharines, Ontario, Canada.
- Gao, M.-J., Li, X., Huang, A.J., and Hegedus, D.D. (2013). "Ectopic expression of embryo-specific traits in vegetative tissues.", Gordon Research Conference – Plant Metabolic Engineering, Waterville Valley, NH, USA.
- Hegedus, D.D. (2013). "Improving the nutritional quality of camelina meal protein.", University of Saskatchewan Food and Bio-Product Sciences Research Day.
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). "A genomics approach to sclerotinia resistance in Brassica napus. SaskCanola 20th Anniversary Research Summary."
- 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., 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)
- Guz, N., Toprak, U., Hegedus, D.D., Coutu, C., Dageri, A., Mousavi, M., Bayram, S., and Gurkan, M.O. (2012). "Comparative fat body transcriptome analysis of Sunn Pest in overwintering and summer populations.", 24th International Congress of Entomology (ICE 2012) and International Organization for Biological Control (IOBC) Global Symposium, Daegu, South Korea, August 19-25, 2012.
- 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.
- Withana-Gamage, T.S., Hegedus, D.D., Qiu, X., and Wanasundara, J.P.D. (2012). "Structure-function study of major Crucifer oilseed storage protein: Emulsifying properties and hydrophobicity of homomeric cruciferin.", 103rd AOCS Annual Meeting & Expo, California, USA.
- Withana-Gamage, T.S., Hegedus, D.D., Qiu, X., and Wanasundara, J.P.D. (2012). "Subunit composition of seed storage proteins affects heat-induced structure development: Gelation of cruciferin as a model.", 11th International Hydrocolloids Conference, Stewart Center, Purdue University, West Lafayette, IN, USA, May 14-18, 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.
- Hannoufa, A., Wei, S., Gruber, M.Y., Yu, B., Khachatourians, G.G., Hegedus, D.D., and Parkin, I.A.P. (2011). "MiR156b alters plant morphology and seed carotenoid content in Arabidopsis thaliana and Brassica napus through the SPL gene regulatory network.", 7th International Symposium on Biocatalysis and Agricultural Biotechnology, Kyoto, Japan.
- 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, 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.
- Toprak, U., Erlandson, M.A., Baldwin, D., Gillott, C., and Hegedus, D.D. (2011). "Synthesis and architecture of the Mamestra configurata peritrophic matrix.", Insect Molecular Sciences Symposium, Amsterdam, The Netherlands.
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)
- Erlandson, M.A., Links, M.G., Maghodia, A.B., Donly, B.C., Hegedus, D.D., and Theilmann, D.A. (2010). "Mamestra configurata nucleopolyhedrovirus strain variation at the genome sequence level.", Society for Invertebrate Pathology Conference 2010, Trabzon, Turkey.
- Gao, M.-J. and Hegedus, D.D. (2010). "Genetic and Epigenetic Control of Seed Development.", in Thangadurai, D., Othman, R.Y. and Biradar, D.P. (eds.) - Molecular Agrobiology, Bentham Science Publishers, pp. 1-91.
- Gao, M.-J., Li, X., Lindsay, D., Lydiate, D.J., and Hegedus, D.D. (2010). "Expression of embryonic traits in vegetative tissues.", Cold Spring Harbor Series, Suzhou, China.
- Sanjeewa, W.G.T., Hegedus, D.D., Qiu, X., McIntosh, T.C., and Wanasundara, J.P.D. (2010). "Purification of homohexameric cruciferin from seeds of mutant Arabidopsis thaliana.", American Chemical Society 2010, Boston, USA.
- Sanjeewa, W.G.T., Hegedus, D.D., Qiu, X., and Wanasundara, J.P.D. (2010). "In silico predictions of surface characteristics of cruciferin protein using homology models.", FABS Research Day, Saskatoon, Canada.
- Sanjeewa, W.G.T., Hegedus, D.D., Qiu, X., and Wanasundara, J.P.D. (2010). "Surface characteristics of cruciferin protein: In silico predictions using homology models.", 10th Agricultural Biotechnology International Conference (ABIC), Saskatoon, SK, Canada, September 12-15, 2010.
- Sanjeewa, W.G.T., Hegedus, D.D., Yu, P., Qiu, X., McIntosh, T.C., May, T., and Wanasundara, J.P.D. (2010). "Genetic makeup of native proteins changes the secondary structure features: A synchrotron FTIR study of Arabidopsis seed storage proteins.", American Chemical Society 2010, Boston, USA.
- Toprak, U., Baldwin, D., Hegedus, D.D., Gillott, C., Harris, S., Theilmann, D.A., and Erlandson, M.A. (2010). "Mamestra configurata nucleopolyhedrovirus ENHANCIN substrate specificity and insect intestinal mucin structural types.", Society for Invertebrate Pathology Conference 2010, Trabzon, Turkey.
2009
- Borhan, M.H., Links, M.G., Utermark, J., Sharpe, A.G., Beynon, E., Clarke, W.E., Jiang, R.H.Y., Hegedus, D.D., and Rimmer, S.R. (2009). "Genomic studies of Albugo candida – Arabidopsis thaliana interactions.", Molecular Plant-Microbe Interaction Workshop, Quebec City, Canada.
- Coutu, C., Hope, B., Daskalchuk, T.E., Lydiate, D.J., Rozwadowski, K., and Hegedus, D.D. (2009). "Modeling Arabidopsis thaliana cruciferin tertiary structure to identify seed storage protein vacuolar sorting determinants.", 7th Canadian Plant Genomics Workshop, Sheraton Cavalier Hotel, Saskatoon, SK, Canada, August 24-27, 2009.
- Erlandson, M.A., Links, M.G., Ethier, S., Toprak, U., Hegedus, D.D., and Theilmann, D.A. (2009). "Baculoviruses associated with Mamestra configurata (Bertha Armyworm): Role of viral enhancing factor (VEF) in the infection process.", 8th Workshop on the Molecular Biology and Genetics of the Lepidoptera, Crete, Greece.
- Gao, M.-J., Li, X., Gruber, M.Y., Hegedus, D.D., and Lydiate, D.J. (2009). "Negative regulation of anthocyanin and proanthocyanidin biosynthetic pathway by a scarecrow-like protein in Arabidopsis thaliana.", American Society Plant Pathology Annual Meeting, Honolulu, Hawaii, USA.
- Links, M.G., Sharpe, A.G., Yu, F.Q., Hill, J., Hemmingsen, S.M., Hegedus, D.D., Lydiate, D.J., and Borhan, H. (2009). "Bioinformatic analysis of whole genome shotgun data derived from 454 sequencing of two Leptosphaeria maculans isolates.", 7th Canadian Plant Genomics Workshop, Sheraton Cavalier Hotel, Saskatoon, SK, Canada, August 24-27, 2009.
- Toprak, U., Baldwin, D., Erlandson, M.A., Gillott, C., and Hegedus, D.D. (2009). "Mucins “on guard”?: Impact of a baculovirus metalloprotease on Mamestra configurata insect intestinal mucins.", Entomological Society of America Annual Meeting 2009, Indianapolis, IN, USA.
- Wei, S., Gruber, M.Y., Khachatourians, G.G., Hegedus, D.D., Parkin, I.A.P., and Hannoufa, A. (2009). "Characterization of an Arabidopsis MiR156b activation tagged mutant reveals SPL15 diverse roles.", American Society Plant Pathology Annual Meeting, Honolulu, Hawaii, USA.
- 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)
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