David De Koeyer, Ph.D.

Image David De Koeyer
Research Scientist

Potato Breeder and Geneticist. Leader of AAFC's National Potato Breeding Program with research activities at Fredericton and Lethbridge Research and Development Centres. 

Current research and/or projects

Potato breeding, genomics, quantitative genetics, and bioinformatics research to increase agricultural productivity and maximize economic returns to producers and other industry participants. Develop new potato varieties to enhance sustainability of potato production.

Research and/or project statements

  • Improve efficiency of potato germplasm enhancement using new breeding strategies, including marker-assisted selection, genomic selection, and diploid breeding;
  • Utilize bioinformatics and genomic tools to increase knowledge of genes affecting tolerance to abiotic and biotic stresses in potato;
  • Develop novel and improved potato germplasm to reduce the impact of economically important potato pests and diseases;
  • Develop elite potato clones with better attributes (storability and quality) for processing and fresh markets;
  • License potato varieties to industry partners.

Professional activities / interests

Collaboration with International potato breeding and genetics teams to develop improved breeding methods and germplasm; 

Training of graduate students and post-docs;

Member of the Potato Association of America;

Leadership and participation in projects with AAFC and external professionals, technicians, support staff and students.

Education and awards

Ph.D. Plant Breeding, University of Minnesota, 1996

M.Sc. Plant Breeding, University of Minnesota, 1992

B.Sc.(Agr.) Crop Science, University of Guelph, 1988

International experience and/or work

2015 – 2018. AfricaYam Project Manager and Yam Breeding Scientist, International Institute of Tropical Agriculture, Ibadan, Nigeria.

Key publications

  1. Nie X, Dickison V, Singh M, De Koeyer D, Xu H, Bai Y, and Hawkins G. 2019. Potato tuber necrosis induced by alfalfa mosaic virus depends on potato cultivars rather than on virus strains. Plant Health 2019 – American Phytopathological Society Annual Meeting, Cleveland, OH, 3-7 August 2019. Presentation No. 401-P2.

    2019 - View publication details

  2. De Koeyer, D., M. Lagüe, V. Dickison, K. Gardner, H. Tai and L. Mueller. 2019. Building a digital ecosystem for potato breeding. 103rd Annual meeting of the Potato Association of America, Winnipeg, MB July 2019.

    2019 - View publication details

  3. De Koeyer, D., V. Dickison, K. Gardner, B. Bizimungu, D. Chen, C. Goyer, L. Kawchuk, D. Main, J. Neilson, X. Nie, A. Smith, and H. Tai. 2019. Modernization of the Agriculture and Agri-Food Canada Potato Breeding Program. p. 34. In: Northeast Potato Technology Forum 2019 Conspectus. March 20-21, Charlottetown, PE.

    2019 - View publication details

  4. Matsumoto, R., H. Ishikawa, S. Korie, and D. De Koeyer. 2018. Varietal differences in tuber yield and fertiliser response in a F1 mapping population of water yam (Dioscorea alata L.). p. 286. In: Tropentag 2018: Global food security and food safety: the role of universities Tielkes, E. (ed.) 1. Aufl. - Weikersheim: Margraf Publishers GmbH

    2018 - View publication details

  5. Prince Emmanuel Norman, Asrat Asfaw, Pangirayi Bernard Tongoona, Agyemang Danquah, Eric Yirenkyi Danquah, David De Koeyer, Robert Asiedu. Pollination Success in Some White Yam Genotypes Under Polycross and Nested Mating Designs. International Journal of Biological Sciences and Applications. Vol. 5, No. 2, 2018, pp. 19-28.

    2018 - View publication details

  6. Nie, X., Dickison, V.L., Brooks, S., Nie, B., Singh, M., De Koeyer, D.L., Murphy, A.M. (2018). High resolution DNA melting assays for detection of Rx1 and Rx2 for high-throughput marker-assisted selection for extreme resistance to potato virus X in tetraploid potato, 102(2), 382-390. http://dx.doi.org/10.1094/PDIS-07-17-0968-RE

    2018 - View publication details

  7. 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.

    2017 - View publication details

  8. 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)

    2016 - View publication details

  9. 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)

    2016 - View publication details

  10. Yuan, J., A.M. Murphy, D. De Koeyer, U.R. Rosyara, D. Wilson, M. Lague, and B. Bizimungu. 2016. Genome-wide association study (GWAS) of disease resistant traits in cultivated potato. 100th Annual meeting of the Potato Association of America, Grand Rapids, Michigan, USA July 31-August 4, 2016. Am. J. Potato Res. 94:249.

    2016 - View publication details

  11. Nie X, De Koeyer D, Murphy A, Dickison V, and Singh M. 2016. Development of HRM markers tightly linked to extreme resistance to Potato virus Y using next-generation sequencing. The 2016 American Pathological Society Annual Meeting, 30 July - 3 August, 2016, Tampa, FL, USA. Phytopathology106:S4.156-157. http://dx.doi.org/10.1094/PHYTO-106-12-S4.1

    2016 - View publication details

  12. Nie X, De Koeyer D, 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 2016. Fredericton, NB, 16-17 March 2016. Page: 33.

    2016 - View publication details

  13. Liu, B., Zhang, G., Murphy, A., De Koeyer, D., Tai, H., Bizimungu, B., Si, H., Li, X.Q. (2016). Differences between the bud end and stem end of potatoes in dry matter content, starch granule size, and carbohydrate metabolic gene expression at the growing and sprouting stages, 64(5), 1176-1184. http://dx.doi.org/10.1021/acs.jafc.5b05238

    2016 - View publication details

  14. 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.

    2015 - View publication details

  15. Tai, H.H., Worrall, K., De Koeyer, D., Pelletier, Y., Tai, G.C.C., Calhoun, L. (2015). Colorado Potato Beetle Resistance in Solanum oplocense X Solanum tuberosum Intercross Hybrids and Metabolite Markers for Selection, 92(6), 684-696. http://dx.doi.org/10.1007/s12230-015-9484-2

    2015 - View publication details

  16. Caraza, M., D. De Koeyer, E. Mihovilovich, M. Bonierbale, and G. Wang-Pruski. 2015. Identification of chromosomal regions in potatoes associated with tuberization traits affected by photoperiod using SNP markers. 99th Annual meeting of the Potato Association of America, Portland, Maine, USA July 19–23, 2015. Am. J. Potato Res. 93:125

    2015 - View publication details

  17. Nie, X., De Koeyer, D., Liang, Z., Dickison, V., Singh, M., Hawkins, G. (2015). Identification and first report of a potato tuber necrosis-inducing isolate of Alfalfa mosaic virus in Canada, 99(11), 1658. http://dx.doi.org/10.1094/PDIS-04-15-0423-PDN

    2015 - View publication details

  18. Kitazumi, A., Kawahara, Y., Onda, T.S., De Koeyer, D., De Los Reyes, B.G. (2015). Implications of miR166 and miR159 induction to the basal response mechanisms of an andigena potato (Solanum tuberosum subsp. andigena) to salinity stress, predicted from network models in Arabidopsis, 58(1), 13-24. http://dx.doi.org/10.1139/gen-2015-0011

    2015 - View publication details

  19. 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)

    2014 - View publication details

  20. 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.

    2014 - View publication details

Research facility

95 Innovation Road
PO Box 20280
Fredericton, NB E3B 4Z7
Canada

Affiliations

Adjunct Professor in the Faculty of Agriculture, Dalhousie University;

External Faculty Member, University of Maine

 

Language

English