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                    U.S. DEPARTMENT OF AGRICULTURE
 Horticultural Crops Disease and Pest Management Research Unit: Corvallis, OR
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ARS Home Pacific West Area Corvallis, Oregon Horticultural Crops Disease and Pest Management Research Unit People







Amy  Peetz    Plant Pathologist Amy Peetz Biological Science Technician 541-738-4031 amy.peetz@usda.gov  Zasada Lab  **Publications** (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)The draft genomes of Radopholus similis populations from Costa Rica -Variable abundance and distribution of Wolbachia and Cardinium Endosymbionts in plant-parasitic nematode field populations -Wasala, S.K., Brown, A.M., Kang, J., Howe, D.K., Peetz, A.B., Zasada, I.A., Denver, D.R. 2019. Variable abundance and distribution of Wolbachia and Cardinium Endosymbionts in plant-parasitic nematode field populations. Frontiers in Microbiology. 10:964. https://doi.org/10.3389/fmicb.2019.00964.Cereal root interactions with soilborne pathogens - from trait to gene and back -Okubara, P.A., Peetz, A.B., Sharpe, R.M. 2019. Cereal root interactions with soilborne pathogens - from trait to gene and back. Agronomy. 9(4):188. https://doi.org/10.3390/agronomy9040188.Further elucidation of the host range of Globodera ellingtonae -Analysis of nematode-endosymbiont coevolution in the Xiphinema americanum species complex using molecular markers of variable evolutionary rates -Howe, D.K., Smith, M., Tom, D.M., Brown, A.M., Peetz, A.B., Zasada, I.A., Denver, D.R. 2018. Analysis of nematode-endosymbiont coevolution in the Xiphinema americanum species complex using molecular markers of variable evolutionary rates. Nematology. 21(5):533-546. https://doi.org/10.1163/15685411-00003233.Comparative genomics of Wolbachia-Cardinium dual endosymbiosis in a plant-parasitic nematode -Brown, A.M., Wasala, S.K., Howe, D.K., Peetz, A.B., Zasada, I.A., Denver, D.R. 2018. Comparative genomics of Wolbachia-Cardinium dual endosymbiosis in a plant-parasitic nematode. Frontiers in Microbiology. 9:2482. https://doi.org/10.3389/fmicb.2018.02482.Vitis spp. rootstocks are poor hosts for Meloidogyne hapla, a nematode commonly found in Washington winegrape vineyards -Zasada, I.A., Howland, A.D., Peetz, A.B., East, K., Moyer, M.M. 2019. Vitis spp. rootstocks are poor hosts for Meloidogyne hapla, a nematode commonly found in Washington winegrape vineyards. American Journal of Enology and Viticulture. 70:1-8. https://doi.org/10.5344/ajev.2018.18027.Pratylenchus species associated with blueberry (Vaccinium spp.) and weed species in the Pacific North-west of North America -Zasada, I.A., Peetz, A.B., Forge, T.A. 2017. Pratylenchus species associated with blueberry (Vaccinium spp.) and weed species in the Pacific North-west of North America. Canadian Journal of Plant Pathology. 39(4):497-502. https://doi.org/10.1080/07060661.2017.1367724.Late summer disease symptoms in western Washington red raspberry fields associated with co-occurrence of Phytophthora rubi, Verticillium dahliae, and Pratylenchus penetrans, but not Raspberry bushy dwarf virus -Weiland, G.E., Benedict, C., Zasada, I.A., Scagel, C.F., Beck, B.R., Davis, E.A., Graham, K., Peetz, A.B., Martin, R.R., Dung, J.K., Reyes Gaige, A., Thiessen, L.S. 2017. Late summer disease symptoms in western Washington red raspberry fields associated with co-occurrence of Phytophthora rubi, Verticillium dahliae, and Pratylenchus penetrans, but not Raspberry bushy dwarf virus. Plant Disease. 102(5):938-947. https://doi.org/10.1094/PDIS-08-17-1293-RE.The draft genome of Globodera ellingtonae -Phillips, W.S., Howe, D.K., Brown, A.M., Eves-van den Akker, S., Dettwyler, L., Peetz, A.B., Denver, D.R., Zasada, I.A. 2017. The draft genome of Globodera ellingtonae. Journal of Nematology. 49(2):127–128.Expanding the scope of a single pathogen survey to solve the mystery of the ailing red raspberries -Weiland, G.E., Benedict, C., Zasada, I.A., Beck, B.R., Davis, E.A., Graham, K., Peetz, A.B., Martin, R.R., Dung, J., Reyes Gaige, A., Thiessen, L. 2017. Expanding the scope of a single pathogen survey to solve the mystery of the ailing red raspberries [abstract]. Phytopathology. 107:S5.4. https://doi.org/10.1094/PHYTO-107-12-S5.1.Species-specific diagnostics using a B-1,4-endoglucanase gene for Pratylenchus spp. occurring in the Pacific Northwest of North America -Peetz, A.B., Zasada, I.A. 2016. Species-specific diagnostics using a B-1,4-endoglucanase gene for Pratylenchus spp. occurring in the Pacific Northwest of North America. Nematology. 18(10):1219-1229. doi: 10.1163/15685411-00003026.Genomic evidence for plant-parasitic nematodes as the earliest Wolbachia hosts -Brown, A.M., Wasala, S.K., Howe, D.K., Peetz, A.B., Zasada, I.A., Denver, D. 2016. Genomic evidence for plant-parasitic nematodes as the earliest Wolbachia hosts. Scientific Reports. 6(34955). doi:10.1038/srep34955.The mitochondrial genome of Globodera ellingtonae is composed of two circles with segregated gene content and differential copy numbers -Phillips, W.S., Brown, A.M., Howe, D.K., Peetz, A.B., Blok, V., Denver, D., Zasada, I.A. 2016. The mitochondrial genome of Globodera ellingtonae is composed of two circles with segregated gene content and differential copy numbers. Biomed Central (BMC) Genomics. 17:706-719. doi: 10.1186/s12864-016-3047-x.Genome skimming: A rapid approach to gaining diverse biological insights into multicellular pathogens -Denver, D., Brown, A.M., Howe, D.K., Peetz, A.B., Phillips, W.S., Zasada, I.A. 2016. Genome skimming: A rapid approach to gaining diverse biological insights into multicellular pathogens. PLoS Pathogens. 12(8):e1005713. doi: 10.1371/journal.ppat.1005713.Comparative genomics of a plant-parasitic nematode endosymbiont suggest a role in nutritional symbiosis -Brown, A.M., Howe, D.K., Wasala, S.K., Peetz, A.B., Phillips, W.S., Zasada, I.A., Denver, D.R. 2015. Comparative genomics of a plant-parasitic nematode endosymbiont suggest a role in nutritional symbiosis. Genome Biology and Evolution. 7:2727-2746.Comparative genomics of a plant-parasitic nematode endosymbiont suggest a role in nutritional symbiosis -Brown, A.M., Howe, D.K., Wasala, S.K., Peetz, A.B., Zasada, I.A., Denver, D.R. 2015. Comparative genomics of a plant-parasitic nematode endosymbiont suggest a role in nutritional symbiosis. Genome Biology and Evolution. 7(9):2727-2746. doi: 10.1093/gbe/evv176.Using mitogenomic and nuclear ribosomal sequence data to investigate the phylogeny of the Xiphinema americanum species complex -Zasada, I.A., Peetz, A.B., Howe, D.K., Wilhelm, L.J., Cheam, D., Denver, D.R., Smythe, A.B. 2014. Using mitogenomic and nuclear ribosomal sequence data to investigate the phylogeny of the Xiphinema americanum species complex. PLoS One. 9:e90035.4r2Host status of different potato (Solanum tuberosum) varieties and hatching in root diffusate of Globodera ellingtonae -Zasada, I.A., Peetz, A.B., Wade, N., Navarre, D.A., Ingham, R.E. 2013. Host status of different potato (Solanum tuberosum) varieties and hatching in root diffusate of Globodera ellingtonae. Journal of Nematology. 45:195-201.Identification of commonly encountered Pratylenchus in Oregon -Zasada, I.A., Peetz, A.B., Wade, N., Ingham, R.E. 2011. Identification of commonly encountered Pratylenchus in Oregon. Journal of Nematology. 43(3/4):297.


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