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United States Department of Agriculture

Agricultural Research Service

James Polashock

Research Plant Pathologist


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Genome sequencing of American cranberry - (Peer Reviewed Journal)
Polashock, J.J., Zelzion, U., Fajardo, D.A., Zalapa, J.E., Georgi, L., Bhattacharya, D., Vorsa, N. 2014. Genome sequencing of American cranberry. Biomed Central (BMC) Plant Biology. 14:165.
New subgroup 16SrIII-V phytoplasmas associated with false-blossom diseased cranberry (Vaccinium macrocarpon) plants and with known and potential insect vectors in New Jersey - (Peer Reviewed Journal)
Lee, I., Polashock, J.J., Bottner-Parker, K.D., Bagadia, P.G., Rodriguez-Saona, C., Zhao, Y., Davis, R.E. 2014. New subgroup 16SrIII-V phytoplasmas associated with false-blossom diseased cranberry (Vaccinium macrocarpon) plants and with known and potential insect vectors in New Jersey. European Journal of Plant Pathology. 139:393-400.
The American cranberry mitochondrial genome reveals the presence of selenocysteine (tRNA-Sec and SECIS) insertion machinery in land plants Reprint Icon - (Peer Reviewed Journal)
Fajardo, D., Schlautman, B., Steffan, S.A., Polashock, J.J., Vorsa, N., Zalapa, J.E. 2014. The American cranberry mitochondrial genome reveals the presence of selenocysteine (tRNA-Sec and SECIS) insertion machinery in land plants. Gene. 536(2):336-343.
Highly fertile intersectional blueberry hybrids of Vaccinium padifolium Section Hemimyrtillus and V. corymbosum Section Cyanococcus - (Peer Reviewed Journal)
Ehlenfeldt, M.K., Polashock, J.J. 2014. Highly fertile intersectional blueberry hybrids of Vaccinium padifolium Section Hemimyrtillus and V. corymbosum Section Cyanococcus. Journal of the American Society for Horticultural Science. 139:30-38.
Jasmonate-mediated induced volatiles in the American cranberry, Vaccinium macrocarpon: from gene expression to organismal interactions Reprint Icon - (Peer Reviewed Journal)
Rodriguez-Saona, C., Polashock, J.J., Malo, E. 2013. Jasmonate-mediated induced volatiles in the American cranberry, Vaccinium macrocarpon: from gene expression to organismal interactions. Frontiers in Plant Science. 4:115.
Characterization and molecular differentiation of 16SrI-E and 16SrIX-E phytoplasmas associated with blueberry stunt disease in New Jersey - (Peer Reviewed Journal)
Bagadia, P.G., Polashock, J.J., Bottner-Parker, K.D., Zhao, Y., Davis, R.E., Lee, I. 2013. Characterization and molecular differentiation of 16SrI-E and 16SrIX-E phytoplasmas associated with blueberry stunt disease in New Jersey. Molecular and Cellular Probes. 27:90-97.
New and emerging viruses of blueberry and cranberry - (Review Article)
Martin, R.R., Polashock, J.J., Tzanetakis, I.E. 2012. New and emerging viruses of blueberry and cranberry. Viruses. 4(11):2831-2852.
The first genetic map of the American cranberry: exploration of synteny conservation and quantitative trait loci Reprint Icon - (Peer Reviewed Journal)
Georgi, L., Johnson-Cicalese, J., Honig, J., Das, S.P., Rajah, V.D., Bhattacharya, D., Bassil, N.V., Rowland, L.J., Polashock, J.J., Vorsa, N. 2013. The first genetic map of the American cranberry: exploration of synteny conservation and quantitative trait loci. Theoretical and Applied Genetics. 126:673-692.
Complete plastid genome sequence of Vaccinium macrocarpon: structure, gene content and rearrangements revealed by next generation sequencing Reprint Icon - (Peer Reviewed Journal)
Fajardo, D., Senalik, D.A., Ames, M., Zhu, H., Steffan, S.A., Harbut, R., Polashock, J.J., Vorsa, N., Gillespie, E., Kron, K., Zalapa, J.E. 2013. Complete plastid genome sequence of Vaccinium macrocarpon: structure, gene content and rearrangements revealed by next generation sequencing. Tree Genetics and Genomes. 9(2):489-498.
Fungal mitochondrial DNases: Effectors with the potential to activate plant defenses in nonhost resistance Reprint Icon - (Peer Reviewed Journal)
Hadwiger, L.A., Polashock, J.J. 2013. Fungal mitochondrial DNases: Effectors with the potential to activate plant defenses in nonhost resistance. Phytopathology. 103:81-90.
Discrimination of American cranberry cultivars and assessment of clonal heterogeneity using microsatellite markers - (Peer Reviewed Journal)
Fajardo, D., Morales, J., Zhu, H., Steffan, S.A., Harbut, R., Bassil, N.V., Hummer, K.E., Polashock, J.J., Vorsa, N., Zalapa, J.E. 2012. Discrimination of American cranberry cultivars and assessment of clonal heterogeneity using microsatellite markers. Plant Molecular Biology Reporter. 31(2):264-271.
Rapid reconstruction and annotation of vaccinium macrocarpon organellar genomes - (Abstract Only)
Steffan, S.A., Senalik, D.A., Polashock, J.J., Vorsa, N., Fajardo, D., Harbut, R., Zalapa, J.E. 2012. Rapid reconstruction and annotation of vaccinium macrocarpon organellar genomes [abstract]. Botany 2012 - The Next Generation. Paper. No. 1043.
Generation and analysis of blueberry transcriptome sequences from leaves, developing fruit, and flower buds from cold acclimation through deacclimation Reprint Icon - (Peer Reviewed Journal)
Rowland, L.J., Alkharouf, N., Darwish, O., Ogden, E.L., Polashock, J.J., Bassil, N.V., Main, D. 2012. Generation and analysis of blueberry transcriptome sequences from leaves, developing fruit, and flower buds from cold acclimation through deacclimation. Biomed Central (BMC) Plant Biology. 12:46.
Endophytic and pathogenic fungi of developing cranberry ovaries from flower to mature fruit: diversity and succession - (Peer Reviewed Journal)
Tadych, M., Bergen, M., Cicalese, J., Polashock, J.J., Vorsa, N., White, J.F. 2012. Endophytic and pathogenic fungi of developing cranberry ovaries from flower to mature fruit: diversity and succession. Fungal Diversity. 54:101-116.
Overexpression of a blueberry-derived CBF enhances cold tolerance in a southern highbush blueberry cultivar - (Peer Reviewed Journal)
Walworth, A.E., Rowland, L.J., Polashock, J.J., Hancock, J.F., Song, G. 2012. Overexpression of a blueberry-derived CBF enhances cold tolerance in a southern highbush blueberry cultivar. Molecular Breeding. 30:1313-1323.
In silico analysis of 454 data yields the complete American cranberry (Vaccinium macrocarpon Ait.) plastid genome - (Abstract Only)
Zalapa, J.E., Steffan, S.A., Simon, P.W., Senalik, D.A., Polashock, J.J., Vorsa, N., Fajardo, D., Harbut, R., Zhu, H., Mccown, B., Zeldin, E. 2012. In silico analysis of 454 data yields the complete American cranberry (Vaccinium macrocarpon Ait.) plastid genome [abstract]. Plant and Animal Genome Conference. Paper No. P0047.
Progress towards the complete American cranberry (Vaccinium macrocarpon Ait.) plastid genome - (Abstract Only)
Zalapa, J.E., Steffan, S.A., Simon, P.W., Senalik, D.A., Polashock, J.J., Vorsa, N., Diego, F., Harbut, R., Zhu, H. 2011. Progress towards the complete American cranberry (Vaccinium macrocarpon Ait.) plastid genome [abstract]. Plant Sciences Symposium.
In planta production of the highly potent resveratrol analogue pterostilbene via stilbene synthase and O-methyltransferase co-expression - (Peer Reviewed Journal)
Rimando, A.M., Pan, Z., Polashock, J.J., Mizuno, C.S., Dayan, F.E., Snook, M.E., Liu, C., Baerson, S.R. 2011. In planta production of the highly potent resveratrol analogue pterostilbene via stilbene synthase and O-methyltransferase co-expression. Plant Biotechnology. 10:269-283.
Cranberry microsatellite marker development from assembled next-generation genomic sequence Reprint Icon - (Peer Reviewed Journal)
Georgi, L., Herai, R.H., Vidal, R., Carazzolle, M.F., Pareira, G.G., Polashock, J.J., Vorsa, N. 2011. Cranberry microsatellite marker development from assembled next-generation genomic sequence. Molecular Breeding. 30:227-237.
Visual inspections of nursery stock fail to protect new plantings from Blueberry scorch virus infection Reprint Icon - (Peer Reviewed Journal)
Oudemans, P., Hillman, B., Linder-Basso, D., Polashock, J.J. 2011. Visual inspections of nursery stock fail to protect new plantings from Blueberry scorch virus infection. Crop Protection. 30:871-875.
Ranking cultivated blueberry for Mummy Berry Blight and Fruit Infection Incidence Reprint Icon - (Peer Reviewed Journal)
Ehlenfeldt, M.K., Polashock, J.J., Stretch, A., Kramer, M.H. 2010. Ranking cultivated blueberry for Mummy Berry Blight and Fruit Infection Incidence. HortScience. 45:1205-1210.
Evolutionary relationships in Vaccinium section Cyanococcus - (Abstract Only)
Durchholz, E., Williams, M., Polashock, J.J., Rowland, L.J., Powell, A. 2010. Evolutionary relationships in Vaccinium section Cyanococcus. Meeting Abstract. 2010:p56.
Functional identification of a blueberry CBF/DREB-like element associated with cold acclimation and freezing tolerance - (Peer Reviewed Journal)
Polashock, J.J., Arora, R., Peng, Y., Dhananjay, N., Rowland, L.J. 2010. Functional identification of a blueberry CBF/DREB-like element associated with cold acclimation and freezing tolerance. Journal of the American Society for Horticultural Science. 135(1)40-48.
Mummy Berry Fruit Rot and Shoot Blight Incidence in Blueberry: Prediction, Ranking, and Stability in a Long-term Study Reprint Icon - (Peer Reviewed Journal)
Ehlenfeldt, M.K., Polashock, J.J., Stretch, A.W., Kramer, M.H. 2010. Mummy Berry Fruit Rot and Shoot Blight Incidence in Blueberry: Prediction, Ranking, and Stability in a Long-term Study. HortScience. 45:92-97.
Population structure of the North American cranberry fruit rot complex - (Peer Reviewed Journal)
Polashock, J.J., Oudemans, P.V., Caruso, F.L., Mcmanus, P., Crouch, J. 2009. Population structure of the North American cranberry fruit rot complex. Plant Pathology. 58:1116-1127.
Fairy ring disease of cranberry: new developments and characterization of the causal agent - (Abstract Only) - (20-Mar-09)
Dissemination of Blueberry Scorch Virus Via Vegetatively Propagated Nursery Stock - (Abstract Only) - (20-Mar-09)
Molecular Detection and Discrimination of Blueberry Red Ringspot Virus Strains Causing Disease in Cultivated Blueberry and Cranberry - (Peer Reviewed Journal)
Polashock, J.J., Ehlenfeldt, M.K., Crouch, J.A. 2009. Molecular detection and discrimination of blueberry red ringspot virus strains causing disease in cultivated blueberry and cranberry. Plant Disease. 23:720-726.
Blueberry Red Ringspot Observations and Findings in North Carolina - (Abstract Only)
Cline, W.0., Ballington, J.R., Polashock, J.J. 2009. Blueberry Red Ringspot Observations and Findings in North Carolina. Meeting Abstract. 810:305-312
A Transgenic approach to understanding cold tolerance in blueberry cultivars - (Proceedings)
Polashock, J.J., Rowland, L.J. 2009. A Transgenic approach to understanding cold tolerance in blueberry cultivars. Proceedings of the 2009 Atlantic Coast Agricultural Convention. Page 95.
Suitability of EST-PCR markers developed in highbush blueberry (Vaccinium corymbosum L.) for genetic fingerprinting and relationship studies in lowbush blueberry (V. angustifolium Ait.) - (Peer Reviewed Journal)
Bell, D.J., Rowland, L.J., Polashock, J.J., Drummond, F.A. 2008. Suitability of EST-PCR markers developed in highbush blueberry (Vaccinium corymbosum L.) for genetic fingerprinting and relationship studies in lowbush blueberry (V. angustifolium Ait.). Journal of the American Society for Horticultural Science. 133:701-707.
Emerging and Reemerging Virus Diseases of Blueberry and Cranberry - (Proceedings)
Martin, R.R., Tzanetakis, I.E., Caruso, F.L., Polashock, J.J. 2009. Emerging and reemerging virus diseases of blueberry and cranberry. Acta Horticulturae. 810:299-304.
Species Identification and Variation in the North American Cranberry Fruit Rot complex - (Proceedings)
Polashock, J.J., Caruso, F.L., Oudemans, P.V., Mcmanus, P., Constanelos, C., Crouch, J. 2009. Species identification and variation in the North American cranberry fruit rot complex. In: Proceedings of the International Society for Horticultural Science 9th International Vaccinium Symposium, July 13-16, 2008, Corvallis, Oregon. p. 395-399.
Species Identification and Variation in the North American Cranberry Fruit Rot Complex - (Proceedings)
Polashock, J.J., Caruso, F.L., Oudemans, P.V., Mcmanus, P., Constantelos, C., Crouch, J. 2009. Species identification and variation in the North American cranberry fruit rot complex. In: Acta Horticulturae International Symposium on Vaccinium Culture Proceedings, July 13-16, 2008, Corvallis, Oregon. p. 395-399.
Species Identification and Variation in the North American Cranberry Fruit Rot Complex - (Proceedings)
Polashock, J.J., Caruso, F.L., Oudemans, P.V., Mcmanus, P., Constantelos, C., Crouch, J. 2009. Species identification and variation in the North American Cranberry Fruit Rot Complex. International Society for Horticultural Science Meeting. p.395-399.
Breeding for fruit rot resistance in Vaccinium macrocarpon - (Proceedings)
Johnson-Cicalese, J., Vorsa, N., Polashock, J.J. 2009. Breeding for fruit rot resistance in vaccinium macrocarpon. In: Proceedings of the Ninth International Vaccinium Symposium, July 14-16, 2008, Corvallis, Oregon. p.191-195.
A blueberry by cranberry hybrid derived from a Vaccinium darrowi x (V. macrocarpon x V. oxycoccus) intersectional cross - (Proceedings)
Vorsa, N., Johnson-Cicalese, J., Polashock, J.J. 2009. A blueberry by cranberry hybrid derived from a Vaccinium darrowi x (V. macrocarpon x V. oxycoccus) intersectional cross. Proceedings of the Ninth International Vaccinium Symposium, July 14-16, 2008, Corvallis, Oregon. p.187-189.
Instrumental and sensory quality characteristics of blueberry fruit from twelve cultivars - (Peer Reviewed Journal)
Saftner, R.A., Polashock, J.J., Ehlenfeldt, M.K., Vinyard, B.T. 2008. Instrumental and sensory quality characteristics of blueberry fruit from twelve cultivars. Postharvest Biology and Technology. 49:19-26.
New and Emerging Pathogens of Blueberry - (Proceedings)
Polashock, J.J. 2008. New and Emerging Pathogens of Blueberry. New Jersey Annual Vegetable Meeting Proceedings. p. 140.
Fairy Ring Disease of Cranberry: Assessment of Crop Losses and Impact on Cultivar Genotype - (Peer Reviewed Journal)
Oudemans, P., Polashock, J.J., Vinyard, B. 2008. Fairy Ring Disease of Cranberry: Assessment of Crop Losses and Impact on Cultivar Genotype. Plant Disease. 92:616-622.
A Multifaceted Approach to Cranberry Improvement - (Abstract Only)
Polashock, J.J. 2007. A Multifaceted Approach to Cranberry Improvement. Meeting Abstract. p.17.
Blueberry Fruit Volatiles As a Potential Marker for Resistance to Anthracnose Fruit Rot - (Peer Reviewed Journal)
Polashock, J.J., Saftner, R.A. 2007. Blueberry fruit volatiles as a potential marker for resistance to anthracnose fruit rot. Journal of the American Society for Horticultural Science. 132:859-868.
Population Structure of the North American Cranberry Fruit Rot Complex - (Abstract Only) - (02-May-07)
Analytical and sensory quality characteristics of twelve blueberry cultivars - (Abstract Only) - (01-Apr-07)
Organoleptic Analysis of Blueberry Cultivars - (Proceedings)
Polashock, J.J., Saftner, R.A., Ehlenfeldt, M.K. 2007. Organoleptic Analysis of Blueberry Cultivars. New Jersey Annual Vegetable Meeting Proceedings, pp. #152-153.
Resistance of Blueberry Cultivars to Botryosphaeria Stem Blight and Phomopsis Twig Blight - (Peer Reviewed Journal)
Polashock, J.J., Kramer, M.H. 2006. Resistance of blueberry cultivars to botryosphaeria stem blight and phomopsis twig blight. HortScience. 41:1373-1520
Fairy Ring Disease Increases Host Genetic Diversity in Cultivated Cranberry - (Abstract Only)
Polashock, J.J., Oudemans, P. 2006. Fairy ring disease increases host genetic diversity in cultivated cranberry. National American Phytopathology Meetings.
Segregating Blueberry Populations for Mummy Berry Fruit Rot Resistance - (Proceedings)
Polashock, J.J., Vorsa, N. 2006. Segregating blueberry populations for mummy berry fruit rot resistance. New Jersey Annual Vegetable Meeting Proceedings. Page 199.
Leaf Disk Infection by Colletotrichum Acutatum and Its Relation to Fruit Rot in Diverse Blueberry Germplasm - (Peer Reviewed Journal)
Polashock, J.J., Ehlenfeldt, M.K., Stretch, A.W., Kramer, M. 2006. Leaf disk infection by colletotrichum acutatum and its relation to fruit rot in diverse blueberry germplasm. Plant Disease. 41:270-271.
Fairy Ring Impact and Management on Cranberry Beds in New Jersey - (Abstract Only)
Oudemans, P., Polashock, J.J. 2005. Fairy ring impact and management on cranberry beds in new jersey. North American Cranberry Research and Extension Workers Annual Meeting. Page 18-19.
Evaluating Cranberry Germplasm for Fruit Rot Resistance - (Abstract Only)
Johnson-Cicalese, J., Vorsa, N., Polashock, J.J. 2005. Evaluating cranberry germplasm for fruit rot resistance. North American Cranberry Research and Extension Workers Annual Meeting. Page 23-25.
Identification of a New Phytophthora Species Causing Root and Runner Rot of Cranberry in New Jersey - (Peer Reviewed Journal)
Polashock, J.J., Vaicunis, J., Oudemans, P. 2005. Identification of a new phytophthora species causing root and runner rot of cranberry in New Jersey. Phytopathology News. 95:1237-1243.
Blueberry Fruit Volatiles As a Potential Marker for Suppression of Anthracnose Fruit Rot - (Abstract Only)
Polashock, J.J., Saftner, R.A. 2005. Blueberry fruit volatiles as a potential marker for suppression of anthracnose fruit rot [abstract]. American Phytopathological Society. 95(6):S84.
Blueberry Volatile Analysis As a Potential Marker for Disease Resistance - (Proceedings)
Polashock, J.J., Saftner, R.A. 2005. Blueberry volatile analysis as a potential marker for disease resistance. Proceedings of the 2005 New Jersey Annual Vegetable Meeting. p. 121-122.
Genetic Manipulation of Cranberry Fruit and Leaf Anthocyanin Glycosylation. - (Peer Reviewed Journal)
Nicholi, V., Polashock, J.J. 2005. Genetic manipulation of cranberry fruit and leaf anthocyanin glycosylation.. Theoretical and Applied Genetics. 130(5):711-715
Screening for Resistance to Botryosphaeria Stem Blight and Phomopsis Twig Blight in Blueberry. - (Proceedings)
Polashock, J.J. 2004. Screening for resistance to botryosphaeria stem blight and phomopsis twig blight in blueberry.. Acta Horticulturae International Symposium on Vaccinium Culture.
Molecular Identification of the 'black Shadow' Pathogen of Blueberry - (Abstract Only)
Polashock, J.J., Oudemans, P.V. 2004. Molecular identification of the 'black shadow' pathogen of blueberry. Meeting Abstract.
Anthracnose Fruit-Rot Resistance in Blueberry Cultivars. - (Peer Reviewed Journal)
Polashock, J.J., Ehlenfeldt, M.K., Kramer, M.H., Stretch, A.W. 2004. Anthracnose fruit-rot resistance in blueberry cultivars.. Plant Disease. 89:33-38.
Genetic Inferences and Breeding Implications from Analysis of Cranberry Germplasm Anthocyainin Profiles. - (Peer Reviewed Journal)
Vorsa, N., Polashock, J.J., Cunningham, D., Roderick, R. 2005. Genetic inferences and breeding implications from analysis of cranberry germplasm anthocyainin profiles.. Journal of American Society for Horticultural Science 128:691-697.
Stem Blight and Phomopsis Resistance in Blueberry - (Proceedings)
Polashock, J.J. 2004. Stem blight and phomopsis resistance in blueberry. Meeting Proceedings. p. 138
Screening for Resistance to Botryosphaeria Stem Blight and Phomopsis Twig Blight in Blueberry. - (Abstract Only)
Polashock, J.J. 2003. Screening for resistance to botryosphaeria stem blight and phomopsis twig blight in blueberry.. Meeting Abstract. Paper No 4.
Identification of Candidate Resistance Genes from Highbush Blueberry Using Degenerate Primers - (Abstract Only)
Polashock, J.J. 2003. Identification of candidate resistance genes from highbush blueberry using degenerate primers. American Phytopathology Society. 93(6):S72.
Utility of Blueberry-Derived Est-Pcr Primers in Related Ericaceae Species - (Peer Reviewed Journal)
Rowland, L.J., Dhanaraj, A., Polashock, J.J., Arora, R. 2003. Utility of blueberry-derived est-pcr primers in related ericaceae species. Hortscience. 38:1428-1432.
Disease Resistance in Blueberry and Approaches to Marker-Assisted Selection - (Abstract Only)
Polashock, J.J. 2003. Disease resistance in blueberry and approaches to marker-assisted selection. Meeting Abstract. P.48.
Interspecific Hybridization for Increased Bioavailability of Antioxidants - (Abstract Only)
Vorsa, N., Polashock, J.J., Vvedenskaya, I. 2003. Interspecific hybridization for increased bioavailability of antioxidants. Meeting Abstract.
Last Modified: 10/31/2013
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