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ARS Home » Northeast Area » Frederick, Maryland » Foreign Disease-Weed Science Research » People & Locations » Kerry Pedley

Kerry F Pedley (PhD)
Foreign Disease-Weed Science Research
Research Molecular Biologist

Phone: (301) 619-1668
Fax: (301) 619-2880

(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)

Projects
Integrative Genomic and Biological Approaches to Detect and Manage Emerging Foreign Fungal Plant Pathogens
In-House Appropriated (D)
  Accession Number: 440440

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Rapid mini-chromosome divergence among fungal isolates causing wheat blast outbreaks in Bangladesh and Zambia Reprint Icon - (Peer Reviewed Journal)
Liu, S., Lin, G., Ramachandran, S.R., Calderon Daza, L., Cruppe, G., Tembo, B., Singh, P., Cook, D., Pedley, K.F., Valent, B. 2023. Rapid mini-chromosome divergence among fungal isolates causing wheat blast outbreaks in Bangladesh and Zambia. New Phytologist. 241:1266-1276. https://doi.org/10.1111/nph.19402.
Recent co-evolution of two pandemic plant diseases in a multi-hybrid swarm Reprint Icon - (Peer Reviewed Journal)
Rahnama, M., Condon, B., Ascari, J. P., Dupuis, J. R., Del Ponte, E. M., Pedley, K. F., Martinez, S., Valent, B., and Farman, M. L. 2023. Recent co-evolution of two pandemic plant diseases in a multi-hybrid swarm. Nat. Ecol. Evol. 7:2055-2066.
A soybean rust effector protease suppresses host immunity and cleaves a 3-deoxy-7-phosphoheptulonate synthase Reprint Icon - (Pre-print Publication)
Sartor Chicowski, A., Qi, M., Montes, C., Variz, H., Caiazza, F., Bredow, M., Dong, H., Margets, A., Walley, J., Aung, K., Craik, C.S., Pedley, K.F., Innes, R., Whitham, S.A. 2023. A soybean rust effector protease suppresses host immunity and cleaves a 3-deoxy-7-phosphoheptulonate synthase. bioRxiv. https://doi.org/10.1101/2023.09.07.556260.
A re-evaluation of phylogenomic data reveals that current understanding in wheat blast population biology and epidemiology is obfuscated by oversights in population sampling Reprint Icon - (Peer Reviewed Journal)
Farman, M.L., Ascari, J.P., Rahnama, M., Del Ponte, E.M., Pedley, K.F., Martinez, S., Fernandes, J.C., Valent, B. 2023. A re-evaluation of phylogenomic data reveals that current understanding in wheat blast population biology and epidemiology is obfuscated by oversights in population sampling. Phytopathology. 114:220-225. https://doi.org/10.1094/PHYTO-01-23-0025-R.
A re-evaluation of phylogenomic data reveals that current understanding in wheat blast population biology and epidemiology is obfuscated by oversights in population sampling Reprint Icon - (Pre-print Publication)
Farman, M.L., Ascari, J.P., Rahnama, M., Del Ponte, E.M., Pedley, K.F., Martinez, S., Fernandes, J.C., Valent, B. 2022. A re-evaluation of phylogenomic data reveals that current understanding in wheat blast population biology and epidemiology is obfuscated by oversights in population sampling. bioRxiv. https://doi.org/10.1101/2022.12.19.521104.
Rapid mini-chromosome divergence among fungal isolates causing wheat blast outbreaks in Bangladesh and Zambia Reprint Icon - (Pre-print Publication)
Liu, S., Lin, G., Ramachandran, S.R., Cruppe, G., Cook, D.E., Pedley, K.F., Valent, B. 2022. Rapid mini-chromosome divergence among fungal isolates causing wheat blast outbreaks in Bangladesh and Zambia. bioRxiv. https://doi.org/10.1101/2022.06.18.496690.
Recombination of standing variation in a multi-hybrid swarm drove adaptive radiation in a fungal pathogen and gave rise to two pandemic plant diseases Reprint Icon - (Pre-print Publication)
Rahnama, M., Condon, B., Ascari, J., Dupuis, J., Del Ponte, E., Pedley, K.F., Martinez, S., Valent, B., Farman, M. 2021. Recombination of standing variation in a multi-hybrid swarm drove adaptive radiation in a fungal pathogen and gave rise to two pandemic plant diseases. bioRxiv. https://doi.org/10.1101/2021.11.24.469688.
Recovery plan for wheat blast caused by Magnaporthe oryzae pathotype Triticum Reprint Icon - (Peer Reviewed Journal)
Valent, B., Cruppe, G., Stack, J.P., Cruz, C.D., Farman, M.L., Paul, P.A., Peterson, G.L., Pedley, K.F. 2021. Recovery plan for wheat blast caused by Magnaporthe oryzae pathotype Triticum. Plant Health Progress. 22:182-212. https://doi.org/10.1094/PHP-11-20-0101-RP.
Genome-wide association reveals limited benefits of pyramiding the 1B and 1D loci with the 2NS translocation for wheat blast control Reprint Icon - (Peer Reviewed Journal)
Cruppe, G., Silva, P., Da Silva, C.L., Peterson, G.L., Pedley, K.F., Cruz, C.D., Asif, M., Lollato, R.P., Fritz, A., Valent, B. 2020. Genome-wide association reveals limited benefits of pyramiding the 1B and 1D loci with the 2NS translocation for wheat blast control. Crop Science. 61:1089-1103. https://doi.org/10.1002/csc2.20397.
Detection and characterization of fungus (Magnaporthe oryzae pathotype Triticum) causing wheat blast disease on rain-fed grown wheat (Triticum aestivum L.) in Zambia Reprint Icon - (Peer Reviewed Journal)
Tembo, B., Mulenga, R.M., Sichilima, S., M'Siska, K.K., Mwale, M., Chikoti, P., Singh, P.K., He, X., Pedley, K.F., Peterson, G.L., Singh, R.P., Braun, H.J. 2020. Detection and characterization of fungus (Magnaporthe oryzae pathotype Triticum) causing wheat blast disease on rain-fed grown wheat (Triticum aestivum L.) in Zambia. PLoS ONE. 15:e0238724. https://doi.org/10.1371/journal.pone.0238724.
De novo transcriptome of Phakopsora pachyrhizi uncovers putative effector repertoire during infection Reprint Icon - (Peer Reviewed Journal)
Elmore, M.G., Banerjee, S., Pedley, K.F., Ruck, A.L., Whitham, S.A. 2020. De novo transcriptome of Phakopsora pachyrhizi uncovers putative effector repertoire during infection. Physiological and Molecular Plant Pathology. 110:101464. https://doi.org/10.1016/j.pmpp.2020.101464.
Invasions of gladiolus rust in North America are caused by a widely-distributed clone of Uromyces transversalis Reprint Icon - (Peer Reviewed Journal)
Delong, J.A., Stewart, J.E., Valencia-Botin, A., Pedley, K.F., Buck, J.W., Brewer, M.T. 2019. Invasions of gladiolus rust in North America are caused by a widely-distributed clone of Uromyces transversalis. PeerJ. 7:e7986. https://doi.org/10.7717/peerj.7986.
A response to Gupta et al. 2018 regarding the MoT3 assay Reprint Icon - (Peer Reviewed Journal)
Yasuhara-Bell, J., Pieck, M.L., Ruck, A.L., Farman, M.L., Peterson, G.L., Stack, J.P., Valent, B., Pedley, K.F. 2019. A response to Gupta et al. 2018 regarding the MoT3 assay. Phytopathology. 109:509-511. https://doi.org/10.1094/PHYTO-10-18-0397-LE.
Rpp1 encodes a ULP1-NBS-LRR protein that controls immunity to Phakopsora pachyrhizi in soybean Reprint Icon - (Peer Reviewed Journal)
Pedley, K.F., Pandey, A.K., Ruck, A.L., Lincoln, L.M., Whitham, S.A., Graham, M.A. 2018. Rpp1 encodes a ULP1-NBS-LRR protein that controls immunity to Phakopsora pachyrhizi in soybean. Molecular Plant-Microbe Interactions. 32:120-133.
Specific detection of the wheat blast pathogen (Magnaporthe oryzae Triticum) by loop-mediated isothermal amplification Reprint Icon - (Peer Reviewed Journal)
Yasuhara-Bell, J., Pedley, K.F., Farman, M., Valent, B., Stack, J.P. 2018. Specific detection of the wheat blast pathogen (Magnaporthe oryzae Triticum) by loop-mediated isothermal amplification. Plant Disease. 102:2550-2559. https://doi.org/10.1094/PDIS-03-18-0512-RE.
Gene flow between divergent cereal- and grass-specific lineages of the rice blast fungus Magnaporthe oryzae Reprint Icon - (Peer Reviewed Journal)
Gladieux, P., Condon, B., Ravel, S., Soanes, D., Maciel, J.N., Nhani, A., Chen, L., Terauchi, R., Lebrun, M., Tharreau, D., Mitchell, T., Pedley, K.F., Valent, B., Talbot, N., Farman, M., Fournier, E. 2018. Gene flow between divergent cereal- and grass-specific lineages of the rice blast fungus Magnaporthe oryzae. mBio. 9:e01219-17. https://doi.org/10.1128/mBio.01219-17.
Suppression or activation of immune responses by predicted secreted proteins of the soybean rust pathogen Phakopsora pachyrhizi Reprint Icon - (Peer Reviewed Journal)
Qi, M., Grayczyk, J.P., Seitz, J.M., Youngsill, L., Link, T.I., Choi, D., Pedley, K.F., Voegele, R.T., Baum, T.J., Whitham, S.A. 2018. Suppression or activation of immune responses by predicted secreted proteins of the soybean rust pathogen Phakopsora pachyrhizi. Molecular Plant-Microbe Interactions. 31:163-174.
Discovery of a seventh Rpp soybean rust resistance locus in soybean accession PI 605823 Reprint Icon - (Peer Reviewed Journal)
Childs, S.P., King, Z.R., Walker, D.R., Harris, D.K., Pedley, K.F., Buck, J.W., Boerma, H.R., Li, Z. 2017. Discovery of a seventh Rpp soybean rust resistance locus in soybean accession PI 605823. Theoretical and Applied Genetics. 131:27-41. https://doi.org/10.1007/s00122-017-2983-4.
A new soybean rust resistance allele from PI 423972 at the Rpp4 locus - (Peer Reviewed Journal)
King, Z.R., Childs, S.P., Harris, D.K., Pedley, K.F., Buck, J.W., Boerma, H., Li, Z. 2017. A new soybean rust resistance allele from PI 423972 at the Rpp4 locus. Molecular Breeding. 37:62.
The Lolium pathotype of Magnaporthe oryzae recovered from a single blasted wheat plant in the United States - (Peer Reviewed Journal)
Farman, M.L., Peterson, G.L., Chen, L., Valent, B.S., Bachi, P.R., Murkock, L.W., Hershman, D.E., Pedley, K.F., Fernandes, M.C., Bavaresco, J.L. 2017. The Lolium pathotype of Magnaporthe oryzae recovered from a single blasted wheat plant in the United States. Plant Disease. 101(5):684-692.
Genomics-based marker discovery and diagnostic assay development for wheat blast - (Peer Reviewed Journal)
Pieck, M.L., Ruck, A.L., Farman, M.L., Peterson, G.L., Stack, J.P., Valent, B., Pedley, K.F. 2017. Genomics-based marker discovery and diagnostic assay development for wheat blast. Plant Disease. 101:103-109.
A small cysteine-rich protein from the Asian soybean rust fungus, Phakopsora pachyrhizi, suppresses plant immunity Reprint Icon - (Peer Reviewed Journal)
Qi, M., Link, T.I., Muller, M., Hirschburger, D., Pedley, K.F., Braun, E., Voegele, R.T., Baum, T., Whitham, S.A. 2016. A small cysteine-rich protein from the Asian soybean rust fungus, Phakopsora pachyrhizi, suppresses plant immunity. PLoS Pathogens. 12(9):e1005827. doi: 10.1371/journal.ppat.1005827.
Early detection of airborne inoculum of Magnaporthe oryzae in turfgrass fields using a quantitative LAMP assay - (Peer Reviewed Journal)
Villari, C., Mahaffee, W.F., Mitchell, T.K., Pedley, K.F., Pieck, M.L., Peduto Hand, F. 2017. Early detection of airborne inoculum of Magnaporthe oryzae in turfgrass fields using a quantitative LAMP assay. Plant Disease. 101(1):170-177. doi: 10.1094/PDIS-06-16-0834-RE.
First report of wheat blast caused by Magnaporthe oryzae pathotype Triticum in Bangladesh Reprint Icon - (Peer Reviewed Journal)
Malaker, P.K., Barma, N.C., Tiwari, T.P., Collis, W.J., Duveiller, E., Singh, P.K., Joshi, A.K., Singh, R.P., Braun, H.J., Peterson, G.L., Pedley, K.F., Farman, M.L., Valent, B. 2016. First report of wheat blast caused by Magnaporthe oryzae pathotype Triticum in Bangladesh. Plant Disease. 100:2330. https://doi.org/10.1094/PDIS-05-16-0666-PDN.
A novel phakopsora pachyrhizi resistance allele (rpp) contributed by PI 567068A - (Peer Reviewed Journal)
King, Z.R., Harris, D.K., Pedley, K.F., Song, Q., Wang, D., Wen, Z., Buck, J.W., Li, Z., Boerma, H. 2015. A novel phakopsora pachyrhizi resistance allele (rpp) contributed by PI 567068A. Theoretical and Applied Genetics. 129:517-534.
Development of a quantitative loop-mediated isothermal amplification (qLAMP) assay for the detection of Magnaporthe oryzae airborne inoculum in turf ecosystems - (Abstract Only)
Villari, C., Mahaffee, W.F., Mitchell, T.K., Pedley, K.F., Pieck, M.L., Peduto Hand, F. 2015. Development of a quantitative loop-mediated isothermal amplification (qLAMP) assay for the detection of Magnaporthe oryzae airborne inoculum in turf ecosystems. In: Poster sessions of the American Phytopathological Society Annual Meeting. August 1-5, 2015, Pasadena, California. 443-P.
Gaining insight into soybean defense responses using functional genomics approaches - (Review Article)
Liu, J., Graham, M.A., Pedley, K.F., Whitham, S.A. 2015. Gaining insight into soybean defense responses using functional genomics approaches. Briefings in Functional Genomics. DOI:10.1093/bfgp/elv009.
Identification of unique genetic sources of soybean rust resistance from the USDA germplasm collection Reprint Icon - (Peer Reviewed Journal)
Harris, D.K., Kendrick, M.D., King, Z.R., Pedley, K.F., Walker, D.R., Cregan, P.B., Buck, J.W., Phillips, D.V., Li, Z., Boerma, H. 2015. Identification of unique genetic sources of soybean rust resistance from the USDA germplasm collection. Crop Science. DOI: 10.2135/cropsci2014.09.0671.
Genetic relationships in an international collection of Puccinia horiana isolates based on newly identified molecular markers and demonstration of recombination. Reprint Icon - (Peer Reviewed Journal)
Debacker, M., Bonants, P., Pedley, K.F., Maes, M., Roldan-Ruiz, I., Van Bockstaele, E., Heugens, K., Van Der Lee, T. 2013. Genetic relationships in an international collection of Puccinia horiana isolates based on newly identified molecular markers and demonstration of recombination. Phytopathology.103:1169-1179. https://doi.org/10.1094/PHYTO-01-13-0007-R.
Transcriptome analyses and virus induced gene silencing identify genes in the Rpp4-mediated Asian soybean rust resistance pathway - (Peer Reviewed Journal)
Morales, A., O'Rourke, J.A., Van De Mortel, M., Schneider, K., Bancroft, T., Borem, A., Nelson, R., Nettleton, D., Baum, T., Shoemaker, R.C., Frederick, R.D., Abdelnoor, R.V., Pedley, K.F., Whitham, S.A., Graham, M.A. 2013. Transcriptome analyses and virus induced gene silencing identify genes in the Rpp4-mediated Asian soybean rust resistance pathway. Functional Plant Biology. DOI:10.1071/FP12296.
Genetic diversity and origins of Phakopsora pachyrhizi isolates in the United States - (Peer Reviewed Journal)
Zhang, X., Freire, M., Le, M., Hartman, G.L., Upchurch, R.G., Pedley, K.F., Stacey, G. 2012. Genetic diversity and origins of Phakopsora pachyrhizi isolates in the United States. Asian Journal of Plant Pathology. 6:52-65.
Preliminary assessment of resistance among U.S. wheat cultivars to the Triticum pathotype of Magnaporthe oryzae - (Peer Reviewed Journal)
Cruz, C.D., Bockus, W.W., Stack, J.P., Tang, X., Valent, B.S., Pedley, K.F., Peterson, G.L. 2012. Preliminary assessment of resistance among U.S. wheat cultivars to the Triticum pathotype of Magnaporthe oryzae. Plant Disease. 96:1501-1505.
Reaction of selected accessions of Aegilops tauschii to wheat blast, 2011 - (Abstract Only)
Bockus, W.W., Cruz, C.D., Kalia, B., Gill, B.S., Stack, J.P., Pedley, K.F., Peterson, G.L., Valent, B. 2012. Reaction of selected accessions of Aegilops tauschii to wheat blast, 2011. Plant Disease. DOI: 10.1094/PDMR06.
Susceptibility of select U.S. winter wheat cultivars to wheat blast (Magnaporthe grisea) - (Abstract Only)
Peterson, G.L., Pedley, K.F., Bockus, W.W., Stack, J.P., Cruz, C., Valent, B.S. 2011. Susceptibility of select U.S. winter wheat cultivars to wheat blast (Magnaporthe grisea). Phytopathology. 101:S141.
Resistance among U.S. wheat Triticum aestivum cultivars to the wheat pathotype of Magnaporthe oryzae - (Abstract Only)
Cruz, C., Bockus, W., Pedley, K.F., Peterson, G.L., Stack, J., Tang, X., Valent, B. 2011. Resistance among U.S. wheat Triticum aestivum cultivars to the wheat pathotype of Magnaporthe oryzae. Phytopathology. 101:S220.
Standardization of protocols to test wheat (Triticum aestivum L.) for reaction to blast in a biocontainment laboratory - (Abstract Only)
Cruz, C., Bockus, W., Pedley, K.F., Peterson, G.L., Stack, J., Tang, X., Valent, B. 2011. Standardization of protocols to test wheat (Triticum aestivum L.) for reaction to blast in a biocontainment laboratory. Phytopathology. 101:S40.
Identification of a second Asian soybean rust resistance gene in Hyuuga soybean - (Peer Reviewed Journal)
Kendrick, M.D., Harris, D.K., Ha, B., Hyten, D.L., Cregan, P.B., Frederick, R.D., Boema, H.R., Pedley, K.F. 2011. Identification of a second Asian soybean rust resistance gene in Hyuuga soybean. Phytopathology. 101:535-543.
Genetic diversity and structure of Phakopsora pachyrhizi infecting soybean in Nigeria - (Peer Reviewed Journal)
Twizeyimana, M., Ojiambo, P.S., Haudenshield, J.S., Caetano-Anolles, G., Pedley, K.F., Bandyopadhyay, R., Hartman, G.L. 2011. Genetic diversity and structure of Phakopsora pachyrhizi infecting soybean in Nigeria. Phytopathology. 60:719-729.
Functional analysis of the Asian soybean rust resistance pathway mediated by Rpp2 - (Peer Reviewed Journal)
Pandey, A.K., Yang, C., Zhang, C., Graham, M.A., Horstman, H.D., Lee, Y., Zabotina, O.A., Hill, J.H., Pedley, K.F., Whitham, S.A. 2011. Functional analysis of the Asian soybean rust resistance pathway mediated by Rpp2. Molecular Plant-Microbe Interactions. Molecular Plant-Microbe Interactions. 24:194-206.
Screening for differential resistance responses to Phakopsora pachyrhizi between Rpp3, Rpp?(Hyuuga) and 12 additional soybean accessions - (Abstract Only)
Kendrick, M.D., Pedley, K.F., Frederick, R.D., Boerma, H.R. 2010. Screening for differential resistance responses to Phakopsora pachyrhizi between Rpp3, Rpp?(Hyuuga) and 12 additional soybean accessions. Phytopathology. 100:S61.
Tomato 14-3-3 protein 7 (TFT7) positively regulates immunity-associated programmed cell death by enhancing accumulation and signaling ability of MAPKKKalpha - (Peer Reviewed Journal)
Oh, C., Pedley, K.F., Martin, G.B. 2010. Tomato 14-3-3 protein 7 (TFT7) positively regulates immunity-associated programmed cell death by enhancing accumulation and signaling ability of MAPKKKalpha. The Plant Cell. 22(1):260-272.
PCR-based assays for the detection of Puccinia horiana on chrysanthemums - (Peer Reviewed Journal)
Pedley, K.F. 2009. PCR-based assays for the detection of Puccinia horiana on chrysanthemums. Plant Disease. 93:1252-1258.
Identification and Analyses of Candidate Genes for Rpp4 Mediated Resistance to Asian Soybean Rust in Soybean (Glycine max) - (Peer Reviewed Journal)
Meyer, J.D., Silva, D.C., Yang, C., Van De Mortel, M., Pedley, K.F., Hill, J.H., Shoemaker, R.C., Abdelnoor, R., Whitham, S.A., Graham, M.A. 2009. Identification and Analyses of Candidate Genes for Rpp4 Mediated Resistance to Asian Soybean Rust in Soybean (Glycine max). Plant Physiology. 150:295-307.
Pathogenic variation of Phakopsora pachyrhizi infecting soybean in Nigeria - (Peer Reviewed Journal)
Twizeyimana, M., Ojiambo, P.S., Haudenshield, J.S., Caetano-Anolles, G., Pedley, K.F., Bandyopadhyay, R., Hartman, G.L. 2009. Pathogenic variation of Phakopsora pachyrhizi infecting soybean in Nigeria. Phytopathology. 99(4):353-361.
Development of simple sequence repeat markers for the soybean rust fungus, Phakopsora pachyrhizi - (Peer Reviewed Journal)
Anderson, S.J., Stone, C.L., Posada-Buitrago, M., Boore, J.L., Neelam, B.A., Stephens, R.M., Luster, D.G., Frederick, R.D., Pedley, K.F. 2008. Development of simple sequence repeat markers for the soybean rust fungus, Phakopsora pachyrhizi. Molecular Ecology Resources. 8:1310-1312.
First Report of Rust Caused by Phakopsora pachyrhizi on soybean in Democratic Republic of Congo - (Peer Reviewed Journal)
Ojiambo, P.S., Bandyopadhyay, R., Twizeyimana, M., Lema, A., Frederick, R.D., Pedley, K.F., Stone, C.L., Hartman, G.L. 2007. First Report of Rust Caused by Phakopsora pachyrhizi on soybean in Democratic Republic of Congo. Plant Disease. 91(9):1204.
First Report of Soybean Rust Caused by Phakopsora pachyrhizi in Ghana - (Peer Reviewed Journal)
Bandyopadhyay, R., Ojiambo, P.S., Twizeyimana, M., Asafo-Adjei, B., Frederick, R.D., Pedley, K.F., Stone, C.L., Hartman, G.L. 2007. First Report of Soybean Rust Caused by Phakopsora pachyrhizi in Ghana. Plant Disease. 91(8):1057.
Phenotypic and genetic variation among soybean rust isolates - (Abstract Only)
Anderson, S.J., Stone, C.L., Boore, J.L., Neelam, B.A., Stephens, R.M., Luster, D.G., Frederick, R.D., Pedley, K.F. 2007. Phenotypic and genetic variation among soybean rust isolates. Phytopathology. 97:S4
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