Richard Hamelin

Research Interests:
Forest Sciences Centre 3032
2424 Main Mall
Vancouver, BC V6T 1Z4
work phone: 6048274441

I am a Forest Pathologist with an interest in using genetic and genomic approaches to better understand forest disease epidemics and in the development of diagnostic and monitoring tools.


Genomics of Host-Pathogens interactions; Integrated Genomics in the Mountain Pine Beetle complex; DNA barcoding of Forest Pathogens.
Integrated Genomics in the Mountain Pine Beetle complex
DNA barcoding of Forest Pathogens

Unit Associations

American Phytopathological Society
Canadian Phytopathological Society
International Union of Forest Research Organizations, Rust of Forest Tree Working Group
Poplar Council of Canada
Quebec Society for Plant Protection

Professional Affiliations

Laval University- Faculties of Forestry and Agriculture
Natural Resources Canada- Canadian Forest Service
Section Editor-Canadian Journal of Plant Pathology
Senior Editor- Phytopathology


Hommage René-Pomerleau for pioneering work in Forest Pathology Award (Quebec Society for Plant Protection, 2008) , 2008
Merit Award (Canadian Forest Service, 2008) , 2008
Merit Award for Creativity and Innovation (Natural Resources Canada, 2008) , 2008
Certificate of Recognition Award (Canadian Food Inspection Agency, 2007) , 2007
Graduate Research in Engineering and Technology (GREAT) Award, (B. C. Science Council, 1985) , 1985
President’s award, (Simon Fraser University 1984) , 1984

Current Courses

Winter 2020

FRST307 Biotic Disturbances Sections

Concepts of disturbance ecology with special reference to insects and diseases in the forests of British Columbia; forest health problems in the biogeoclamatic zones of BC; present management strategies and future potentials in a scenario of climate change.

Winter 2020

FRST449C Directed Studies in Forestry - DIRECTED STUDIES Sections

In special cases and with the approval of the instructor concerned, a student may carry on directed studies of specific problems in forestry.

Winter 2020

FRST506 Advanced Forest Pathology Sections

Hereditary, physiological, anatomical, environmental, and microbiological factors influencing forest tree diseases.

Winter 2020

FRST557 Site-Level Forest Land Management Sections

Design and implementation of site-level plans that integrate ecological, social, and economic components: silviculture, forest operations, and forest health.

Selected Publications

Dale, A.L., Feau, N., Everhart, S.E., Dhillon, B., Wong, B., Sheppard, J., Bilodeau, G.J., Brar, A., Tabima, J.F., Shen, D., Brasier, C.M., Tyler, B.M., Grünwald, N.J., Hamelin, R.C. (2019). Mitotic Recombination and Rapid Genome Evolution in the the Invasive Forest Pathogen Phytophthora ramorum. mBio 10 e02452-18.
Bergeron, M.J., Feau, N., Stewart, D., Tanguay, P. and Hamelin, R.C. (2019). Genome-enhanced detection and identification of fungal pathogens responsible for pine and poplar rust diseases PloS one 14(2), p.e0210952
Leal, I., Bergeron, M.J., Feau, N.$, Tsui, C.K.M., Foord, B., Pellow, K., Hamelin, R. and Sturrock, R (2019). Cryptic speciation in western North America and eastern Eurasia of the pathogens responsible for laminated root rot Phytopathology 109(3), pp.456-468
Roe, A.D., Torson, A.S., Bilodeau, G., Bilodeau, P., Blackburn, G.S., Cui, M., Cusson, M., Doucet, D., Griess, V.C., Lafond, V., Paradis, G., Porth, I., Prunier, J., Srivastava, V., Tremblay, E., Uzunovic, A., Yemshanov, D., Hamelin, R.C. (2019). Biosurveillance of forest insects: part I—integration and application of genomic tools to the surveillance of non-native forest insects Journal of Pest Science 92(1), pp.51-70
Bilodeau, P., Roe, A.D., Bilodeau, G., Blackburn, G.S., Cui, M., Cusson, M., Doucet, D., Griess, V.C., Lafond, V.M.A., Nilausen, C., Paradis, G., Porth, I., Prunier, J., Srivastava, V., Stewart, D., Torson, A.S., Tremblay, E., Uzunovic, A., Yemshanov, D., Hamelin, R.C. (2019). Biosurveillance of forest insects: part II—adoption of genomic tools by end user communities and barriers to integration Journal of Pest Science 92(1), pp.71-82
Shamoun, S., Rioux, D., Callan, B., James, D., Hamelin, R., Bilodeau, G., Elliott, M., Levesque, C.A., Becker, E., McKenney, D. and Pedlar, J. (2018). An Overview of Canadian Research Activities on Diseases caused by Phytophthora ramorum: Results, Progress and Challenges Plant disease 102(7), pp.1218-1233
Picq S, Keena M, Havill N, Stewart D, Pouliot E, Boyle B, Levesque RC, Hamelin RC, Cusson M. (2018). Assessing the potential of genotyping‐by‐sequencing‐derived single nucleotide polymorphisms to identify the geographic origins of intercepted gypsy moth (Lymantria dispar) specimens: A proof‐of‐concept study Evolutionary Applications 1;11(3):325-39
Brar, S., Tabima, J.F., McDougal, R.L., Dupont, P.Y., Feau, N.$, Hamelin, R.C., Panda, P., LeBoldus, J.M., Grünwald, N.J., Hansen, E.M. and Bradshaw, R.E. (2018). Genetic diversity of Phytophthora pluvialis, a pathogen of conifers, in New Zealand and the west coast of the United States of America Plant Pathology 67(5), pp.1131-1139
Cullingham, C.I., Janes, J.K., Hamelin, R.C., James, P.M., Murray, B.W. and Sperling, F.A. (2018). The contribution of genetics and genomics to understanding the ecology of the mountain pine beetle system Canadian Journal of Forest Research
Feau, N; Beauseigle, S; Bergeron, MJ; Bilodeau, GJ; Birol, I; Cervantes-Arango, S; Dhillon, B; Dale, AL; Herath, P; Jones, SJM; Lamarche, J; Ojeda, DI; Sakalidis, ML; Taylor, G; Tsui, CKM; Uzunovic, A; Yueh, H; Tanguay, P; Hamelin, RC (2018). Genome-Enhanced Detection and Identification (GEDI) of plant pathogens PeerJ
Dario I. Ojeda Alayon, Clement K. M. Tsui, Nicolas Feau, Arnaud Capron, Braham Dhillon, Yiyuan Zhang, Sepideh Massoumi Alamouti, Celia K. Boone, Allan L. Carroll, Janice E. K. Cooke, Amanda D. Roe, Felix A. H. Sperling, Richard C. Hamelin (2017). Genetic and genomic evidence of niche partitioning and adaptive radiation in mountain pine beetle fungal symbionts Molecular Ecology 26(7): 2077-2091
Lamarche, J., Potvin, A., Stewart, D., Blais, M., Pelletier, G., Shamoun, S.F., Hamelin, R.C. and Tanguay, P. (2017). Real‐time PCR assays for the detection of Heterobasidion irregulare, H. occidentale, H. annosum sensu stricto and the Heterobasidion annosum complex Forest Pathology 47(2): e12321
Gagnon, M.C., Feau, N., Dale, A.L., Dhillon, B., Hamelin, R., Brasier, C., Grünwald, N.J., Brière, S.C. and Bilodeau, G (2017). Development and validation of polymorphic microsatellite loci for the NA2 lineage of Phytophthora ramorum from whole genome sequence data Plant Disease Plant Disease
Feau, N. and Hamelin, R.C. (2017). Say hello to my little friends: how microbiota can modulate tree health New Phytologist 215(2): 508-510
La Mantia, J., Unda, F., Douglas, C.J., Mansfield, S.D. and Hamelin, R.C. (2017). Overexpression of At GolS3 and Cs RFS in poplar enhances ROS tolerance and represses defense response to leaf rust disease Tree Physiology 1-14
Djoumad, A., Nisole, A., Zahiri, R., Freschi, L., Picq, S., Gundersen-Rindal, D.E., Sparks, M.E., Dewar, K., Stewart, D., Maaroufi, H., Levesque, R.C. Hamelin, R.C. and Cusson, M. (2017). Comparative analysis of mitochondrial genomes of geographic variants of the gypsy moth, Lymantria dispar, reveals a previously undescribed genotypic entity Scientific Reports, 7(1), p.14245.
McKown, AD, J Klápště, RD Guy, RY Soolanayakanahally, J La Mantia, I Porth, O Skyba, F Unda, CJ Douglas, YA El-Kassaby, RC Hamelin, SD Mansfield & QCB Cronk (2017). Sexual homomorphism in dioecious trees: extensive tests fail to detect sexual dimorphism in Populus Scientific Reports 7:1831
Feau, N, Taylor, G.; Dale, A.L., Dhillon, B., Bilodeau, G. J.; Birol, I., Jones, S.J.M. and Hamelin, R. C (2016). Genome sequences of six Phytophthora species threatening forest ecosystems Genomics Data, 10:85-88
Stewart, D., Zahiri, R., Djoumad, A., Freschi, L., Lamarche, J., Holden, D., Cervantes, S., Ojeda, D.I., Potvin, A., Nisole, A. and Béliveau, C., Capron, A., Kimoto, T., Day, B., Yueh, H. Duff, C, Levesque, R.C., Hamelin, R. C. and Cusson, M. (2016). A Multi-Species TaqMan PCR Assay for the Identification of Asian Gypsy Moths (Lymantria spp.) and Other Invasive Lymantriines of Biosecurity Concern to North America PLoS One PloS one, 11(8), p.e0160878
Rafael E. Arango Isaza , Caucasella Diaz-Trujillo , Braham Dhillon , Andrea Aerts, Jean Carlier, Charles F. Crane, Tristan V. de Jong, Ineke de Vries, Robert Dietrich, Andrew D. Farmer, Claudia Fortes Fereira, Suzana Garcia, Mauricio Guzman, Richard C. Hamelin, Erika A. Lindquist, Rahim Mehrabi, Olman Quiros, Jeremy Schmutz, Harris Shapiro, Elizabeth Reynolds, Gabriel Scalliet, Manoel Souza Jr., Ioannis Stergiopoulos, Theo A. J. Van der Lee, Pierre J. G. M. De Wit, Marie-Françoise Zapater, Lute-Harm Zwiers, Igor V. Grigoriev, Stephen B. Goodwin , Gert H. J. Kema (2016). Combating a global threat to a clonal crop: banana black Sigatoka pathogen Pseudocercospora fijiensis (synonym Mycosphaerella fijiensis) genomes reveal clues for disease control PLoS Genet PLoS Genet 12, no. 8 (2016): e1005876.
Herath, P., Beauseigle, S., Dhillon, B., Ojeda, D.I., Bilodeau, G., Isabel, N., Gros-Louis, M.C., Kope, H., Zeglen, S., Hamelin, R.C. and Feau, N. (2016). Anthropogenic signature in the incidence and distribution of an emerging pathogen of poplars Biological Invasions, 18(4):1147-1161
Sakalidis, M.L., Feau, N., Dhillon, B. and Hamelin, R.C. (2016). Genetic patterns reveal historical and contemporary dispersal of a tree pathogen Biological Invasions 18(6):1781-1799
McGregor, R.R., Sakalidis, M.L. and Hamelin, R.C. (2016). Neofusicoccum arbuti: a hidden threat to Arbutus menziesii characterized by widespread latent infections and a broad host range Canadian Journal of Plant Pathology 38(1):70-81
Ojeda, D.I., Dhillon, B., Tsui, C.K.M. and Hamelin, R.C. (2013). SNP discovery in Leptographium longiclavatum, a mountain pine beetle-associated symbiotic fungus, using whole-genome resequencing Molecular Ecology Resources 14: 401–410
Porth, Ilga, Jaroslav Klapste, Athena D. McKown, Jon La Mantia, Richard C. Hamelin, Oleksandr Skyba, Faride Unda et al. (2013). Extensive functional pleiotropy of REVOLUTA substantiated through forward genetics Plant physiology
La Mantia, Jonathan, Jaroslav Klápště, Yousry A. El-Kassaby, Shofiul Azam, Robert D. Guy, Carl J. Douglas, Shawn D. Mansfield, and Richard Hamelin (2013). Association analysis identifies Melampsora× columbiana poplar leaf rust resistance SNPs PloS one 8, no. 11: e78423
Winder, R.S., J. Lamarche, C.P. Constabel, and R.C. Hamelin. (2013). The effects of high-tannin leaf litter from transgenic poplars on microbial communities in microcosm soils Frontiers in Microbiology 4
Tsui, C. K-M., DiGuistini, S. Wang, Y. Feau, N., Dhillon, Braham, Bohlmann, J. and Hamelin, R.C. (2013). Unequal Recombination and Evolution of the Mating-Type (MAT) Loci in the Pathogenic Fungus Grosmannia clavigera and Relatives G3: Genes| Genomes| Genetics 3: 465-480
Boutigny, A.-L., Guinet, C., Vialle, A., Hamelin, R.C., Andrieux, A., Frey, P., Husson, C., and Ioos, R. (2013). Optimization of a real-time PCR assay for the detection of the quarantine pathogen Melampsora medusae f. sp. deltoidae Fungal Biology 117, no. 6: 389-398.
Boutigny, A. L, Guinet, C., Vialle, A. Hamelin, R.C., Frey, P., and Ioos, R. (2013). A sensitive real-time PCR assay for the detection of the two Melampsora medusae formae speciales on infected poplar leaves European Journal of Plant Pathology, 136(3), 433-441
Ohm, R.A., Feau, N., Henrissat, B., Schoch, C.L., Horwitz, B.A., Barry, K.W., Hamelin, R.C. and others (2012). Diverse Lifestyles and Strategies of Plant Pathogenesis Encoded in the Genomes of Eighteen Dothideomycetes Fungi PLoS Pathogen 8: e1003037
de Wit PJGM, van der Burgt A, Ökmen B, Stergiopoulos I, Abd-Elsalam KA, Aerts AL, Bahkali AH, Beenen HG, Chettri P, Cox MP, Datema E, de Vries RP, Dhillon B, Ganley AR, Griffiths SA, Guo Y, Hamelin RC, Henrissat B, Kabir MS, Jashni MK, Kema G, Klaubauf S, Lapidus A, Levasseur A, Lindquist E, Mehrabi R, Ohm RA, Owen TJ, Salamov A, Schwelm A, et al. (2012). The Genomes of the Fungal Plant Pathogens Cladosporium fulvum and Dothistroma septosporum Reveal Adaptation to Different Hosts and Lifestyles But Also Signatures of Common Ancestry PLoS Genet, 8:e1003088
Vialle, A., Feau, N., Frey, P., Bernier, L. and Hamelin, R. C. (2012). Phylogenetic species recognition reveals host speciation among poplar rust fungi Molecular Phylogeny and Evolution: 66:628–644
11. Conrad L. Schoch, Keith A. Seifert, Sabine Huhndorf, Vincent Robert, John L. Spouge, C. André Levesque, Wen Chen, Hamelin, R.C. and Fungal Barcoding Consortium. (2012). Nuclear ribosomal internal transcribed spacer (ITS) region as a universal DNA barcode marker for Fungi Proceedings of the National Academy of Sciences of the United States of America 109 (16) 6241-6246
Feau, N., Vialle, A., Allaire, M., Maier, W. and Hamelin, R. (2011). DNA barcoding in the rust genus Chrysomyxa and its implications for the phylogeny of the genus. -Mycologia 2011 DOI: 10.3852/10-426
Duplessis, S., Cuomo, C. A., Lin, Y. C., Aerts, A., Tisserant, E., Veneault-Fourrey, C., Joly, D. L., Hacquard, S., Amselem, J., Cantarel, B. L., Chiu, R., Couthinho, P., Feau, N., Field, M., Frey, P., Gelhaye, E., Goldberg, J., Grabherr, M., Kodira, C. D., Kohler, A., Kues, U., Lindquist, E. A., Lucas, S., Mago, R., Mauceli, E., Morin, E., Murat, C., Pangilinan, J. L., Park, R., Pearson, M., Quesneville, H., Rouhier, N., Sakthikumar, S., Salamov, A. A., Schmutz, J., Selles, B., Shapiro, H., Tanguay, P., Tuskan, G. A., Henrissat, B., Van de Peer, Y., Rouzé, P., Ellis, J. G., Dodds, P.N., Schein, J. E., Zhong, S., Hamelin, R. C., Grigoriev, I. V., Szabo, L. J. and Martin, F. (2011). Obligate Biotrophy Features Unraveled by the Genomic Analysis of Rust Fungi -Proceedings of the National Academy of Sciences, May 2, 2011, doi: 10.1073/pnas.1019315108
Tsui, C. K. M., Wang, B., Khadempour,L., Alamouti,S. M., Bohlmann, J., Murray, B. W. and Hamelin, R. C. (2010). Rapid identification and detection of pine pathogenic fungi associated with mountain pine beetles by padlock probes -Journal of Microbiological Methods, Volume 83:26-33.
Feau, N., Mottet, M. J. , Périnet, P., Hamelin, R. C. and Bernier, L. (2010). Recent advances related to poplar leaf spot and canker caused by Septoria musiva, -Canadian Journal of Plant Pathology, 32: 122-134
Khadempour,L., Alamouti, S. M., Hamelin, R., Bohlmann, J. and Breuil, C. (2010). Target-specific PCR primers can detect and differentiate ophiostomatoid fungi from microbial communities associated with the mountain pine beetle Dendroctonus ponderosae. -Fungal Biology, Volume 114: 825-833.
Stefani, F. O. P., Tanguay, P., Pelletier, G., Piche, Y, and Hamelin, R. C. (2010). Impact of Endochitinase-Transformed White Spruce on Soil Fungal Biomass and Ectendomycorrhizal Symbiosis -Applied and Environmental Microbiology (2010) vol. 76 (8) pp. 2607-2614
Hamelin, R. C. (2006). Molecular epidemiology of forest pathogens: from genes to landscape Canadian Journal Of Plant Pathology 28: 167-181