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De Koeyer, David, Ph.D.

Research Scientist

Contact Information:

850 Lincoln Road
PO Box 20280
Fredericton, New Brunswick E3B 4Z7
Telephone: 506-460-4508
Fax: 506-460-4377
Email: david.dekoeyer@agr.gc.ca

Areas of Expertise:

  • population development
  • physiological and chemical differences
  • yield
  • disease and insect resistance
  • recurrent selection
  • direct response
  • inbreeding
  • heterosis
  • variance analysis
  • cloning
  • crossing
  • database development
  • potato
  • correlated response
  • design of experiments
  • bioinformatics
  • marker identification
  • database management
  • inter-ploidy crosses
  • DNA sequence relationships
  • parthenogenesis
  • quantitative trait linkage: methodology development
  • selection assisted by DNA markers
  • field testing

Current Projects:

  • Bioinformatics and statistical genetics for potato improvement: understanding and improving selection.
  • Bioinformatics for potato molecular genetics and genomics
  • Bioinformatics for potato molecular genetics and genomics.
  • Development and release to industry of new potato selections for processing and fresh markets, with improved resistances to diseases and pests, and adapted to rain-fed production systems.

Research publications

2017

2016

2015

2014

2013

2012

2011

2010

Other science related publications

2017

  • Dickison V, Bizimungu B, De Koeyer D, Douglass K, Nie X. 2017. Review: Marker–assisted selection of disease traits integration into AAFC’s Potato Breeding Program. Canadian Phytopathological Society Maritime Region Meeting 2017, 23 Nov 2017, Kentville, NS.

2016

  • Nie, X., De Koeyer, D.L., Liang, Z., Dickison, V., and Singh, M. (2016). "Identification and characterization of an Alfalfa mosaic virus isolate in potatoes exhibiting internal necrosis.", Northeast Potato Technological Forum, Fredericton, NB, Canada, March 16-17, 2016, pp. 33. (Abstract)
  • Nie, X., Sutherland, D., Dickison, V.L., Singh, M., Murphy, A.M., and De Koeyer, D.L. (2016). "Development and validation of high-resolution DNA melting (HRM)-based markers derived from Rysto-STS markers YES3-3A and YES3-3B for high-throughput marker-assisted selection of potatoes carrying Rysto.", 2016 Annual Meeting of the Canadian Phytopathological Society, Moncton, NB, Canada, 12-15 June, 2016, pp. 26. (Abstract)

2015

  • Nie, X., De Koeyer, D.L., Liang, Z., Dickison, V., Singh, M., and Hawkins, G. (2015). "Identification and characterization of an Alfalfa mosaic virus isolate associated with tuber necrosis in a potato variety.", 2015 American Pathological Society Annual Meeting, Pasadena, CA, USA, August 1-6, 2015.

2014

  • Ai Kitazumi, A., Kawahara, A.Y., De Koeyer, D.L., and de los Reyes, B.G. (2014). "Integration of stress and growth-related responses by microRNAs in the Andean potato.", XXII Plant & Animal Genome Conference, Town & Country Convention Center, San Diego, CA, USA, January 10-15, 2014. (Poster)
  • De Koeyer, D.L., Douglass, K., Lague, M., Bizimungu, B., Murphy, A.M., Bonierbale, M., and Mosquera, T. (2014). "Next-generation SNP genotyping platforms for characterizing potato germplasm.", in S. Dias, E. Dulloo, N. Maxted, S. Kell, E. Thörn, L. Smith, J. Preston, S. Hutchinson (eds.) - International Conference on ENHANCED GENEPOOL UTILIZATION - Capturing wild relative and landrace diversity for crop improvement, Cambridge University Press, UK, pp. 17.
  • Tai, H.H., De Koeyer, D.L., Goyer, C., Nolan, L., Davidson, C., Lague, M., Murphy, A.M., Sonderkaer, M., Hedegaard, S., Halterman, D., and Lehman Neilsen, K. (2014). "Expression QTL analysis of genetic variation in potato responses to Verticillium wilt.", 11th Solanaceae Conference, Porto Seguro, Brazil, November 2-6, 2014. (Abstract)
  • Tai, H.H., De Koeyer, D.L., Goyer, C., Nolan, L., Davidson, C.G., Sønderkær, M., Hedegaard, S., Lehman Neilsen, K., Lague, M., Murphy, A.M., Uribe, P., and Halterman, D. (2014). "Genetic analysis of tolerance and resistance to Verticillium dahliae.", 98th Annual Meeting of the Potato Association of America (PAA), The Davenport Hotel, Spokane, WA, USA, July 27-31, 2014. (Abstract)
  • Zebarth, B.J., Tai, H.H., Luo, S., De Koeyer, D.L., and Li, X.-Q. (2014). "Gene expression-based diagnostics: A new way to optimize crop fertilizer nitrogen management?", 18th Nitrogen Workshop. The nitrogen challenge: Building blueprint for nitrogen use efficiency and food security, Lisbon, Portugal, June 30-July 3, 2014. (Abstract)

2013

  • Caraza, M., De Koeyer, D.L., Mihovilovich, E,, Bonierbale, M., and Wang-Pruski, G. (2013). "Identification of candidate genes associated with photoperiod for improving adaptation of potatoes to diverse environments.", 9th Canadian Plant Genomics Workshop, Halifax, NS, Canada, August 12-15, 2013.
  • Goyer, C., Tai, H.H., Gustafson, V., De Koeyer, D.L., and Rothwell, C. (2013). "Analysis of gene expression of two potato cultivars during common scab infection using microarrays.", 97th Annual Meeting of the Potato Association of America (PAA), Québec City, QC, Canada, July 28-August 2, 2013.
  • Li, X.-Q., Xu, C., Liu, X., Haroon, M., Liu, J., Xie, C.Y., Meng, F., De Koeyer, D.L., Leclerc, Y., Donnelly, D.J., and Murphy, A.M. (2013). "Identification of the major enzyme and genes controlling cold sweetening in potato tubers during storage.", 97th Annual Meeting of the Potato Association of America (PAA), Québec City, QC, Canada, July 28-August 2, 2013, Oral presentation.
  • Mihovilovich, E,, De Koeyer, D.L., and Bonierbale, M. (2013). "Response of short day-length adapted potato breeding lines to long photoperiod.", 97th Annual Meeting of the Potato Association of America (PAA), Québec City, QC, Canada, July 28-August 2, 2013.
  • Tai, H.H., De Koeyer, D.L., Goyer, C., Sønderkær, M., Hedegaard, S., Nolan, L., Laguë, M., Murphy, A.M., and Nielsen, K.L. (2013). "Analysis of genetic variation in gene expression associated with Verticillium dahliae infection in potato.", 10th Solanaceae Conference, Beijing, China, October 13-17, 2013.
  • Tai, H.H., Goyer, C., Platt, H.W., De Koeyer, D.L., Murphy, A.M., Uribe, P., and Halterman, D. (2013). "Decreased defense gene expression in a potato clone with tolerance to Verticillium dahliae.", 9th Canadian Plant Genomics Workshop, Halifax, NS, Canada, August 12-15, 2013.
  • Tai, H.H., Worrall, K., Pelletier, Y., De Koeyer, D.L., and Calhoun, L.A. (2013). "Metabolites from CPB-resistant wild Solanum species.", 97th Annual Meeting of the Potato Association of America (PAA), Québec City, QC, Canada, July 28-August 2, 2013.

2012

  • De Koeyer, D.L., Nie, X., Douglass, K., Laguë, M., Gustafson, V., Albert, L., and Singh, M. (2012). "Next Generation Sequencing for Detection of Viruses Infecting Potato.", 96th Annual Meeting of the Potato Association of America (PAA), Crowne Plaza Denver International Airport, Denver, CO, USA, August 12-16, 2012, Amer. J. Potato Res. (2013) 90:129-130.
  • Tai, H.H., Goyer, C., De Koeyer, D.L., Murphy, A.M., De Jong, H., and Platt, H.W. (2012). "Comparative Transcriptome Profiling of Foliage from Two Diploid Potato Clones with Variation in Responses to Verticillium Infection.", 96th Annual Meeting of the Potato Association of America (PAA), Crowne Plaza Denver International Airport, Denver, CO, USA, August 12-16, 2012, Oral presentation, Abst. 90.
  • Tai, H.H., Worrall, K., De Koeyer, D.L., Pelletier, Y., and Calhoun, L.A. (2012). "Comparative gene expression profiling of diploid potato parents with variation in susceptibility to verticillium wilt and eqtl mapping of the progeny.", 9th Solanaceae Conference (SOL 2012), University of Neuchâtel, Neuchâtel, Switzerland, August 25-30, 2012, Oral presentation, pp. 91.
  • Tai, H.H., Worrall, K., De Koeyer, D.L., Pelletier, Y., and Calhoun, L.A. (2012). "Metabolomics and transcriptomics of Colorado Potato Beetle resistance in wild Solanum species.", 9th Solanaceae Conference (SOL 2012), University of Neuchâtel, Neuchâtel, Switzerland, August 25-30, 2012, P65, pp. 207. (Poster)
  • Tai, H.H., Zebarth, B.J., Luo, S., Li, X.-Q., Millard, P., De Koeyer, D.L., and Xiong, X. (2012). "Development of gene expression indicators for nitrogen sufficiency in potato plants.", Potato Association of America Annual meetings, Denver, Colorado, USA.

2011

  • De Koeyer, D.L., Chen, H., and Gustafson, V. (2011). "Molecular breeding.", in Bradeen, J.M and Kole, C. (eds.) - Genetics, Genomics and Breeding of Potato. Series: Genetics, Genomics and Breeding of Crop Plants, Science Publishers and CRC Press, Chapter 3.
  • Tai, H.H., Pelletier, Y., Worrall, K., Calhoun, L.A., and De Koeyer, D.L. (2011). "Metabolomics of Colorado Potato Beetle resistance in potato.", Palmerston North Plant Biology Meeting, Palmerston North, New Zealand, June 23, 2011.
  • Worrall, K., Tai, H.H., Pelletier, Y., Calhoun, L.A., and De Koeyer, D.L. (2011). "Comparative metabolic profiling of S. Tuberosum and CPB-resistant Solanum species.", 19th Annual Northeast Potato Technology Forum, Crowne Plaza Fredericton Lord Beaverbrook Hotel, Fredericton, NB, Canada, March 16-17, 2011, pp. 21. (Abstract)

2010

  • De Koeyer, D.L., Douglass, K., Chen, H., Mason, N., and Murphy, A.M. (2010). "Marker-assisted selection in a Canadian potato breeding program.", XXIV Congreso de la Asociación Latinoamericana de la Papa (ALAP), Cusco, Peru, May 23-28, 2010, pp. 147-148. (Abstract)
  • De Koeyer, D.L., Douglass, K., Murphy, A.M., Wu, Y., and Wang-Pruski, G. (2010). "Mapping and validation of QTL for after-cooking darkening.", EUCARPIA-EAPR Joint Meeting: Potato Breeding after Completion of the DNA Sequence of the Potato Genome, Wageningen, The Netherlands, June 27-30, 2010, pp. 48. (Abstract)
  • Frank, D., Tai, H.H., Duguay, J.L., De Koeyer, D.L., Gustafson, V., and Regan, S. (2010). "A rapid method for identifying DNA sequence flanking sites of T-DNA insertion in a population of activation-tagged potato screened for late blight resistance.", Plant Biology 2010: Joint meeting of the Canadian Society of Plant Physiologists (CSPP) and American Society of Plant Biologists (ASPB), Montréal Convention Centre, Montréal, QC, Canada, July 31-August 4, 2010. (Abstract)
  • Frank, D., Tai, H.H., Duguay, J.L., De Koeyer, D.L., Gustafson, V., and Regan, S. (2010). "A rapid method for identifying sites of T-DNA integration in activation-tagged potato.", 7th Solanaceae Conference (SOL2010), Apex Hotel, Dundee, Scotland, UK, September 5-9, 2010, pp. 20. (Abstract)
  • Luo, S., Zebarth, B.J., Tai, H.H., Li, X.-Q., De Koeyer, D.L., and Millard, P. (2010). "Use of gene expression to detect potato nitrogen deficiency stress under field conditions.", 2010 ASA-CSSA-SSSA International Annual Meeting, Long Beach Convention Center, Long Beach, CA, USA, October 31-November 4, 2010. (Abstract)
  • Murphy, A.M., Chen, H., De Koeyer, D.L., Laguë, M., and Tai, H.H. (2010). "Breeding studies of pigmented tuber flesh in potatoes.", EUCARPIA-EAPR Joint Meeting: Potato Breeding after Completion of the DNA Sequence of the Potato Genome, Wageningen, The Netherlands, June 27-30, 2010. (Abstract)
  • Tai, H.H., De Koeyer, D.L., Goyer, C., and Murphy, A.M. (2010). "Gene expression profiling of diploid potato clones with variation in maturation timing.", 18th Annual Northeast Potato Technology Forum, Charlottetown, PEI, Canada, March 11-12, 2010. (Abstract)
  • Tai, H.H., Pelletier, Y., Worrall, K., Calhoun, L.A., and De Koeyer, D.L. (2010). "Comparative metabolite profiling of S. tuberosum and CPB-resistant Solanum species.", 94th Annual Meeting of the Potato Association of America (PAA), Oregon State University, Corvallis, OR, USA, August 15-19, 2010. (Abstract)
  • Tai, H.H., Pelletier, Y., Worrall, K., Calhoun, L.A., and De Koeyer, D.L. (2010). "Metabolite profiling of leaves from Colorado Potato Beetle resistant Solanum species.", 7th Solanaceae Conference (SOL2010), Apex Hotel, Dundee, Scotland, UK, September 5-9, 2010, pp. 85. (Abstract)
  • Wang-Pruski, G., Babin, S., Murphy, P., Kong, F., Wu, Y., Douglass, K., Murphy, A.M., De Koeyer, D.L., and Pinto, D.M. (2010). "Identification of genes and gene markers by genomics, genome mapping and comparative proteomics and their relationship to potato tuber qualities.", 28th International Horticultural Congress (IHC2010): Postharvest technology in global market, Lisboa Congress Centre, Lisbon, Portugal, August 22-27, 2010. (Abstract)
  • Worrall, K., Pelletier, Y., Calhoun, L.A., De Koeyer, D.L., and Tai, H.H. (2010). "Metabolite profiling of leaves from Colorado Potato Beetle-resistant Solanum species.", Advances In Metabolic Profiling Conference 2010, Florence, Italy, November 9-10, 2010.
  • Wu, Y., De Koeyer, D.L., Douglass, K., Murphy, A.M., and Wang-Pruski, G. (2010). "Verification of single nucleotide polymorphism markers associated with after-cooking darkening in diploid and tetraploid potatoes using high-resolution DNA melting.", 18th Annual Northeast Potato Technology Forum, Charlottetown, PEI, Canada, March 11-12, 2010. (Abstract)

2009

  • Calhoun, L.A., Embleton, J., Jennings, J.C., De Koeyer, D.L., Parks, R., Pelletier, Y., Read, L., and Tai, H.H. (2009). "Biopesticides for Insect Control.", BioPotato Network Meeting, Crowne Plaza Fredericton Lord Beaverbrook Hotel, Fredericton, NB, Canada, November 2, 2009. (Abstract)
  • Chapman, B., Johnston, J., Kulka, M., Zhang, J.H., Zidichouski, J., Wang, Y., Williams, A., Bernard, K., Kerr, R., Saleh, T., Smith, J., Robertson, G., Murphy, A.M., Tai, H.H., De Koeyer, D.L., and Nie, X. (2009). "Bioactives, Functional Food and Nutraceuticals - The science behind developing a BioPotato.", BioPotato Network Meeting, Crowne Plaza Fredericton Lord Beaverbrook Hotel, Fredericton, NB, Canada, November 2, 2009. (Abstract)
  • Chen, H., De Koeyer, D.L., Murphy, A.M., and Tai, H.H. (2009). "Molecular breeding studies of pigmented tuber flesh in potatoes.", BioPotato Network Meeting, Crowne Plaza Fredericton Lord Beaverbrook Hotel, Fredericton, NB, Canada, November 2, 2009. (Abstract)
  • Chen, Q., Yang, J.L., Xu, Y., Beasley, D., Wang, D.D., Goettel, M.S., Sun, H.S., De Koeyer, D.L., and Platt, H.W. (2009). "Molecular markers and their use for selection of late blight resistance in potato.", 2009 Annual Meeting of Potato Growers of Alberta, Kananaskis, AB, Canada, November 17-19, 2009. (Poster)
  • De Koeyer, D.L., Douglass, K., Murphy, A.M., Nolan, L., and Wang-Pruski, G. (2009). "Identification of quantitative trait loci for after-cooking darkening.", 65th Annual Meeting of the Acadian Entomological Society, Crowne Plaza Fredericton Lord Beaverbrook Hotel, Fredericton, NB, Canada, June 19-21, 2005, pp. 63. (Abstract)
  • De Koeyer, D.L., Pelletier, Y., Murphy, A.M., Embleton, J., Clark, C., and Allaby, S. (2009). "Breeding for resistance to Colorado potato beetle using a wild potato species.", 17th Annual Northeast Potato Technology Forum, Bangor, ME, USA, March 10-11, 2009, pp. 30. (Abstract)
  • Duguay, J.L., Gustafson, V., Rivoal, J., Tai, H.H., Pelletier, Y., De Koeyer, D.L., and Regan, S. (2009). "Screening an activation tagged population in potato reveals a mutant with chocolate colored tubers: the potential role for a MYB transcription factor.", 65th Annual Meeting of the Acadian Entomological Society, Crowne Plaza Fredericton Lord Beaverbrook Hotel, Fredericton, NB, Canada, June 19-21, 2005, pp. 33. (Abstract)
  • Li, X.-Q., Sveshnikov, D., Zebarth, B.J., Tai, H.H., De Koeyer, D.L., Millard, P., and Haroon, M. (2009). "Detection of nitrogen deficiency in potato plants using gene expression markers.", Plant & Animal Genome XVII Conference, Town & Country Convention Center, San Diego, CA, USA, January 10-14, 2009, P03e, pp. 161. (Poster)
  • Li, X.-Q., Xu, C.-A., Haroon, M., Liu, X., Griffiths, R., Yuan, J.Z., Gaudin, A., De Koeyer, D.L., Rothwell, C., Gustafson, V., Regan, S., Flinn, B., Schafleitner, R., Bonierbale, M., Song, B.T., Liu, J., Xie, C.-H., and Meng, F.M. (2009). "Gene activity profile and pathway selection for starch-sugar inter-conversion in cold stored and reconditioned potatoes.", 65th Annual Meeting of the Acadian Entomological Society, Crowne Plaza Fredericton Lord Beaverbrook Hotel, Fredericton, NB, Canada, June 19-21, 2005, pp. 64. (Abstract)
  • Murphy, A.M., De Koeyer, D.L., Wood, S., Douglass, K., Dalton, T., Wilson, D., and Bélair, G. (2009). "Marker-assisted selection for potato lines with golden nematode resistance using a high-resolution DNA melting assay.", 65th Annual Meeting of the Acadian Entomological Society, Crowne Plaza Fredericton Lord Beaverbrook Hotel, Fredericton, NB, Canada, June 19-21, 2005, pp. 43. (Abstract)
  • Tai, H.H., De Koeyer, D.L., Goyer, C., and Murphy, A.M. (2009). "Comparative transcriptome profiling of diploid potato clones with variation in maturation timing.", 65th Annual Meeting of the Acadian Entomological Society, Crowne Plaza Fredericton Lord Beaverbrook Hotel, Fredericton, NB, Canada, June 19-21, 2005. (Abstract)
  • Tai, H.H., De Koeyer, D.L., Goyer, C., and Murphy, A.M. (2009). "Comparative transcriptome profiling of diploid potato clones with variation in maturation timing.", 6th Solanaceae Genome Workshop (SOL 2009), Hotel Le Meridien, New Delhi, India, November 8-13, 2009. (Abstract)
  • Tai, H.H., De Koeyer, D.L., Murphy, A.M., Worrall, K., Davidson, C., Frank, D., and Goyer, C. (2009). "Regulation of anthocyanin biosynthesis in potato.", BioPotato Network Meeting, Crowne Plaza Fredericton Lord Beaverbrook Hotel, Fredericton, NB, Canada, November 2, 2009. (Abstract)
  • Tai, H.H., Pelletier, Y., Worrall, K., Calhoun, L.A., and De Koeyer, D.L. (2009). "Mining wild Solanum for biopesticides.", BioPotato Network Meeting, Crowne Plaza Fredericton Lord Beaverbrook Hotel, Fredericton, NB, Canada, November 2, 2009. (Abstract)
  • Zebarth, B.J., Li, X.-Q., Sveshnikov, D., Tai, H.H., De Koeyer, D.L., Millard, P., Haroon, M., and Singh, M. (2009). "Can we use gene expression to determine nitrogen sufficiency in potatoes?", 2009 ASA-CSSA-SSSA International Annual Meeting, Pittsburgh, PA, USA, November 1-5, 2009. (Abstract)
  • Zebarth, B.J., Li, X.-Q., Sveshnikov, D., Tai, H.H., De Koeyer, D.L., Millard, P., Haroon, M., and Singh, M. (2009). "Detection of nitrogen deficiency in potato using gene expression.", 93rd Annual Meeting of the Potato Association of America (PAA), Fredericton, NB, Canada, August 9-13, 2009, pp. 69. (Abstract)
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