K. Peter Pauls

K.P. Pauls



(519) 824-4120 x54136


(519) 763-8933


B.Sc. University of Waterloo;
M.Sc. University of Waterloo;
Ph.D. University of Waterloo


Crop Science Building


325 CRSC

Our laboratory is working in various areas of plant cell biology, molecular biology and genomics. It has focused on understanding disease-related and developmental phenomena that are of agricultural interest and developing methods to improve crops through biotechnology. Significant research accomplishments of the lab include:

  • Sequencing of the genome for bean (Phaseolus vulgaris) variety OAC Rex
  • Identification of molecular markers for: bacterial blight resistance in beans, lipoxygenase nulls and low linolenic acid content in soybean, Fusarium graminearum resistance in corn and yield-related traits in beans.
  • Development of molecular linkage maps for several bean, soybean and corn breeding populations.
  • Development of genetic distance and QTL- index based approaches to marker assisted selection.
  • Production of transgenic corn and tomatoes with improved resistance to fungal diseases.
  • Development of a genotype-independent Agrobacterium-based transformation system for corn.
  • Cloning and sequencing of genes from Brassica microspores that may be involved in the commitment of cells to embryogenesis.
  • Cloning and sequencing genes coding for structural and regulatory genes in the phenylpropanoid and folic acid synthesis pathways in Phaseolus.
  • Release of new white bean and kidney bean varieties developed through conventional breeding.
  • Measurement of the persistence of DNA from transgenic plants in agricultural soils.

Research picture.



HORT*1130 Science of Gardening
PBIO*4150 Molecular and Cellular Aspects of Plant Development

Relevant Links:

Selected Publications:

Erfatpour, M., Navabi, A. and Pauls, K.P. (2018) Mapping the non‑darkening trait from ‘Wit‑rood boontje’ in bean (Phaseolus vulgaris). Theor App Gen (2018) 131:1331–1343. DOI:10.1007/s00122-018-3081-y

Farid, M., Earl, H.J., Pauls, K.P. and Navabi, A. (2017) Response to selection for improved nitrogen fixation in common bean (Phaseolus vulgaris L.). Euph 213: 99. doi:10.1007/s10681-017-1885-5

Xie, W., Khanal, R., McClymont, S., Stonehouse, R., Bett, K., Yu, K.F., Pauls, K.P. and Navabi, A. (2017) Interaction of quantitative trait loci for resistance to common bacterial blight and pathogen isolates in Phaseolus vulgaris L. Mol Breed 37:55. doi:10.1007/s11032-017-0657-1

Xie, W., Perry, G., Martin, C., Shim, Y., Navabi, A. and Pauls. K.P. (2017) Molecular Characterization of dihydroneopterin aldolase and aminodeoxychorismate synthase in common bean - genes coding for enzymes in the folate synthesis pathway. Genome 60: 588–600. DOI:10.1139/gen-2016-0227

Freixas-Coutin, J.A., Munholland, S., Silva, A., Subedi, S., Crosby, W.L., Pauls, K.P. and Bozzo, G.G.  (2017) Proanthocyanidin accumulation and transcriptional responses in the seed coat of cranberry beans (Phaseolus vulgaris L.) with different susceptibility to postharvest darkening. BMC Plant Biol 17:89. DOI 10.1186/s12870-017-1037-z

Ahad, R., Zhou, T., Lepp, D. and Pauls, K.P. (2017) Draft genome sequence of Citrobacter freundii Strain A47, resistant to the mycotoxin deoxynivalenol. Genome Announc 5:e00019-17. https://doi.org/10.1128/genomeA.00019-17

Ahad, R., Zhou, T., Lepp, D. and Pauls, K.P. (2017) Microbial detoxification of eleven food and feed contaminating trichothecene mycotoxins. BMC Biotech 17:30. DOI 10.1186/s12896-017-0352-7

Chen, P.X., Zhang, H., Marcone, M.F. Pauls, K.P., Liu, R., Tang, Y., Zhang, B., Renaud, J.B. and Tsao, R. (2017) Anti-inflammatory effects of phenolic-rich cranberry bean (Phaseolus vulgaris L.) extracts and enhanced cellular antioxidant enzyme activities in Caco-2 cells. J Functional Foods 38: 675-685. https://doi.org/10.1016/j.jff.2016.12.027

Khanal, R., Smith, T.H., Michaels, T.E. and Pauls, K.P. (2017) Lighthouse Common Bean. Can J Plant Sci. 97: 165-168. 10.1139/cjps-2016-0073

Reinprecht, Y. and Pauls, K.P. (2016) Microsomal omega-3 fatty acid desaturase genes in low linolenic acid soybean line RG10 and validation of major linolenic acid QTL. Front. Genet. 7:38. doi: 10.3389/fgene.2016.00038

Monk, J.M., Lepp, D., Zhang, C.P., Wu, W., Zarepoor, L., Lu, J.T., Tsao, R., Pauls, K.P., Wood, G.E., Robinson, L.E. and Power, K.A. (2015) Diets enriched with cranberry beans alter the microbiota and mitigate colitis severity and associated inflammation. J Nutrition Biochem 28: 129-139. DOI:10.1016/j.jnutbio.2015.10.014

Reinprecht, Y., Arif, M., Simon, L.C. and Pauls, K.P. (2015) Genome regions associated with functional performance of soybean stem fibers in polypropylene thermoplastic composites. PLoS ONE 10(7): e0130371. doi:10.1371/journal.pone.0130371

Zou, X., Shi, C., Austin, R.S., Merico, D., Munholland, S., Marsolais, F., Navabi, A., Crosby, W., Pauls, K.P., Yu, K.-F., and Cui, Y. (2014) Genome-wide single nucleotide polymorphism and insertion-deletion discovery through next-generation sequencing of reduced representation libraries in common bean. Mol Breed 33: 769-778.  DOI 10.1007/s11032-013-9997-7

Reinprecht, Y., Z. Yadegari, G.E. Perry, M. Siddiqua, L.C. Wright, P.E. McClean and K.P. Pauls. (2013). In silico comparison of genomic regions containing genes coding for enzymes and transcription factors for the phenylpropanoid pathway in Phaseolus vulgaris L. and Glycine max L.Merr. Frontiers in Plant Science. 4: 317. DOI: 10.3389/fpls.2013.00317.

Perry, G.E., C. DiNatale, W. Xie, A. Navabi, Y. Reinprecht, W. Crosby, K. Yu, C. Shi and K.P. Pauls. (2013). A comparison of the molecular organization of genomic regions associated with resistance to common bacterial blight in two Phaseolus vulgaris genotypes. Frontiers in Plant Science 4: 318. DOI: 10.3389/fpls.2013.00318.

Khanal, S., J. Xue, R. Khanal, W. Xie, J. Shi, K.P. Pauls and A. Navabi. (2012). Quantitative Trait Loci Analysis of Folate Content in Dry Beans, Phaseolus vulgaris L. International Journal of Agronomy. DOI: 10.1155/2013/983641.

Smith, T. H., T.E. Michaels, A. Navabi and K.P. Pauls. (2012). OAC Inferno common bean. Canadian Journal Plant Science. 92: 589-592.

Taheri, A., J. Subramanian, J.A. Cline, M.N. Raizada and K.P Pauls. (2012). A WD-repeat gene from peach (Prunus persica L.) is a functional ortholog of Arabidopsis thaliana TRANSPARENT TESTA GLABRA1. In Vitro Cellular & Developmental Biology - Plant. 48: 23–29.

Smith, T. H., T.E. Michaels, A. Navabi and K.P. Pauls. (2012). OAC Inferno common bean. Canadian Journal Plant Science. 92: 589-592.

Xie, W., K.F. Yu, K.P. Pauls and A. Navabi. (2012) Applications of Image Analysis in Studies of Quantitative Disease Resistance, Exemplified  Using Common Bacterial Blight – Common Bean Pathosystem. Phytopathology. 102: 434-442.

Elsadr, H., L. Wright, K. Pauls and K. Bett. (2011). Characterization of seed coat post harvest darkening in common bean (Phaseolus vulgaris L.). Theoretical and Applied Genetics. 123: 1467-1472.

Reinprecht, Y., S.Y. Luk-Labey, K. Yu, V. Poysa, I. Rajcan, G. Ablett and K. P. Pauls. (2011). Molecular basis of seed lipoxygenase null traits in soybean line OX948. Theoretical and Applied Genetics. 122: 1247-1264.

Islam, R., T. Zhou, J.C. Young, P.H. Goodwin and K.P. Pauls. (2012). Aerobic and anaerobic de-epoxydation of mycotoxin deoxynivalenol by bacteria originating from agricultural soil. World Journal of Microbiology and Biotechnology. 28: 7-13.

Reinprecht, Y., S.Y Luk-Labey, J. Larsen, V.W. Poysa, K. Yu, I. Rajcan, G.R. Ablett, and K.P. Pauls. (2009). Molecular basis of the low linolenic acid trait in soybean EMS mutant line RG10. Plant Breeding. 128: 253-258. 

Smith, T.H., T.E. Michaels, A.M. Lindsay and K.P Pauls. (2009). OAC Redstar common bean. Canadian Journal of Plant Science. 89: 309-311.

Garabagi, F., B.W. French, A.W. Schaafsma and K.P. Pauls. (2008). Increased expression of a cGMP-dependent protein kinase in rotation-adapted western corn rootworm (Diabrotica virgifera virgifera L.). Insect Biochemistry and Molecular Biology. 38: 697-704.

Yuan, J., M.A. Liakat, J. Taylor, J. Liu, G. Sun, W. Liu, P. Masilimany, A. Gulati-Sakhuja and K.P. Pauls. (2008). A guanylyl cyclase-like gene is associated with Gibberella ear rot resistance in maize (Zea mays L.). Theoretical and Applied Genetics. 116: 465-479.

Gulden, R.H., S. Lerat, R.E. Blackshaw, J.R. Powell, D.J. Levy-Booth, K.E. Dunfield, J.T. Trevors, K.P. Pauls, J.N. Klironomos and C.J. Swanton. (2008). Factors Affecting the Presence and Persistence of Plant DNA in the Soil Environment in Corn and Soybean Rotations. Weed Science. 56: 767–774.

Chan, J. and K.P. Pauls. (2006). Brassica napus Rop GTPases and their expression in microspore culture. Planta. 225: 469-484.

Pauls, K.P., J. Chan, G. Woronuk and J. Brazolot. (2006). When microspores decide to become embryos cellular and molecular changes. Canadian Journal of Botany. 84: 668-678.

Michaels, T.E., T.W. Smith, J. Larsen, A.D. Beattie and K.P. Pauls. (2005). OAC Rex common bean. Canadian Journal of Plant Science 86: 733–736.

Ali, M.A., J.H. Taylor, L. Jie, G. Sun, M. William, K.J. Kasha, L.M. Reid and K.P. Pauls. (2005). Molecular mapping of QTL for resistance to gibberella ear rot in corn caused by Fusarium graminearum. Genome. 48: 521-533.

Reinprecht, Y., V. Poysa, I. Rajcan, G. Ablett, and K.P. Pauls. (2005). Relationships and inheritance of linolenic acid and seed lipoxygenases in soybean crosses designed to combine these traits. Canadian Journal of Plant Science 85: 593-602.