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ARS Home » Southeast Area » Stoneville, Mississippi » Crop Genetics Research » People & Locations » Jeffery Ray (Jeff)
Jeffery D Ray (Jeff)
Research Geneticist (Plants)


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Characterizing seed composition and seed quality in heat tolerant soybean in the Southeast United States - (Abstract Only)
Identification of QTLs for symbiotic nitrogen fixation and related traits in a soybean recombinant inbred line population - (Peer Reviewed Journal)
Krueger, C.B., Ray, J.D., Smith, J.R., Dhanapal, A.P., Arifuzzaman, M., Gao, F., Fritschi, F.B. 2024. Identification of QTLs for symbiotic nitrogen fixation and related traits in a soybean recombinant inbred line population. Theoretical and Applied Genetics. 137:89. https://doi.org/10.1007/s00122-024-04591-3.
Seed yield, quality, and composition as influenced by the harvest-aid paraquat in soybean grown in Mississippi - (Abstract Only)
Bellaloui, N., Smith, J.R., Ray, J.D., Gillen, A.M., Mengistu, A., Fisher, D.K., Singh, G. 2023. Seed yield, quality, and composition as influenced by the harvest-aid paraquat in soybean grown in Mississippi. Journal of the Mississippi Academy of Sciences. 68:54-55.
Identification of genomic regions associated with the plasticity of carbon 13 ratio in soybean - (Peer Reviewed Journal)
Chamarthi, S., Kaler, A., Abdel-Haleem, H.A., Fritschi, F., Gillman, J.D., Ray, J.D., Smith, J.R., Purcell, L. 2022. Identification of genomic regions associated with the plasticity of carbon 13 ratio in soybean. The Plant Genome. 16(1). Article e20284. https://doi.org/10.1002/tpg2.20284.
Charcoal rot severity and soybean yield responses to planting date, irrigation, and genotypes - (Peer Reviewed Journal)
Mengistu, A., Kelly, H.M., Read, Q.D., Ray, J.D., Bellaloui, N., Schumacher, L.A. 2023. Charcoal rot severity and soybean yield responses to planting date, irrigation, and genotypes. Plant Disease. https://doi.org/10.1094/PDIS-06-22-1329-RE.
Responses of seed yield, quality, and composition to the harvest-aid paraquat in soybean grown in Mississippi - (Peer Reviewed Journal)
Bellaloui, N., Smith, J.R., Ray, J.D., Mengistu, A., Gillen, A.M., Fisher, D.K., Singh, G. 2022. Responses of seed yield, quality, and composition to the harvest-aid paraquat in soybean grown in Mississippi. Agrosystems, Geosciences & Environment. 5(2):e20262. https://doi.org/10.1002/agg2.20262.
Identification and confirmation of loci associated with canopy wilting in soybean using genome wide association mapping - (Peer Reviewed Journal)
Chamarthi, S.K., Kaler, A.S., Abdel-Haleem, H.A., Fritschi, F.B., Gillman, J.D., Ray, J.D., Smith, J.R., Dhanapal, A.P., King, C.A., Purcell, L.C. 2021. Identification and confirmation of loci associated with canopy wilting in soybean using genome wide association mapping. Frontiers in Plant Science. 12. Article 698116. https://doi.org/10.3389/fpls.2021.698116.
Identification of simple sequence repeat (SSR) and single nucleotide polymorphism (SNP) that are associated with nectariless trait of Gossypium hirsutum L. - (Peer Reviewed Journal)
Park, S., Scheffler, J.A., Ray, J.D., Scheffler, B.E. 2021. Identification of simple sequence repeat (SSR) and single nucleotide polymorphism (SNP) that are associated with nectariless trait of Gossypium hirsutum L.. Euphytica. 217:78. https://doi.org/10.1007/s10681-021-02799-8.
Mapping quantitative trait loci (QTL) for plant nitrogen isotope ratio in soybean - (Peer Reviewed Journal)
Bazzer, S.K., Ray, J.D., Smith, J.R., Fritschi, F.B., Purcell, L.C. 2020. Mapping quantitative trait loci (QTL) for plant nitrogen isotope ratio in soybean. Euphytica. https://doi.org/10.1007/s10681-020-02726-3.
Resistance to acetolactate synthase inhibitors is due to a W 574 to L amino acid substitution in the ALS gene of redroot pigweed and tall waterhemp - (Peer Reviewed Journal)
Nandula, V.K., Giacomini, D.A., Ray, J.D. 2020. Resistance to acetolactate synthase inhibitors is due to a TRP 574 to LEU amino acid substitution in the ALS gene of redroot pigweed and tall waterhemp from Mississippi. PLoS ONE. 15:6. https://doi.org/10.1371/journal.pone.0235394.
Mapping and confirmation of quantitative trait loci (QTLs) associated with carbon isotope ratio (d13c) in soybean - (Peer Reviewed Journal)
Bazzer, S.K., Kaler, A.S., King, C.A., Ray, J.D., Hwang, S., Purcell, L.C. 2020. Mapping and confirmation of quantitative trait loci (QTLs) associated with carbon isotope ratio (d13c) in soybean. Crop Science. 60:2479-2499. https://doi.org/10.1002/csc2.20240.
Identification of quantitative trait loci for carbon isotope ratio in a recombinant inbred population of soybean - (Peer Reviewed Journal)
Bazzer, S.K., Kaler, A.S., Ray, J.D., Smith, J.R., Fritschi, F.B., Purcell, L.C. 2020. Identification of quantitative trait loci for carbon isotope ratio in a recombinant inbred population of soybean. Theoretical and Applied Genetics. https://doi.org/10.1007/s00122-020-03586-0.
Genome-wide association mapping of dark green color index using a diverse panel of soybean accessions - (Peer Reviewed Journal)
Kaler, A., Abdel-Haleem, H.A., Fritschi, F.B., Gillman, J.D., Ray, J.D., Smith, J.R., Purcell, L.C. 2020. Genome-wide association mapping of dark green color index using a diverse panel of soybean accessions. Scientific Reports. 10. https://doi.org/10.1038/s41598-020-62034-7.
Genetic diversity among geographically separated Cyperus rotundus accessions based on RAPD markers and morphological characteristics - (Peer Reviewed Journal)
Molin, W.T., Kronfol, R.R., Ray, J.D., Scheffler, B.E., Bryson, C.T. 2019. Genetic diversity among geographically separated Cyperus rotundus accessions based on RAPD markers and morphological characteristics. American Journal of Plant Sciences. 10:2034-2046.
Pathotype grouping of Cercospora sojina isolates on soybean and their sensitivity to QoI fungicides - (Peer Reviewed Journal)
Mengistu, A., Ray, J.D., Kelly, H.M., Lin, B., Yu, H., Smith, J.R., Arelli, P.R., Bellaloui, N. 2019. Pathotype grouping of Cercospora sojina isolates on soybean and their sensitivity to QoI fungicides. Plant Disease. 104:373-380. https://doi.org/10.1094/PDIS-02-19-0368-RE.
Post-infection development of reniform nematode on resistant soybean lines JTN-5203, PI 404166, and 02011-126-1-5-1-1 - (Abstract Only)
Stetina, S.R., Smith, J.R., Ray, J.D. 2019. Post-infection development of reniform nematode on resistant soybean lines JTN-5203, PI 404166, and 02011-126-1-5-1-1. Meeting Abstract. 51:40. https://doi.org/10.21307/jofnem-2019-065.
Single nucleotide polymorphism analysis using KASP assay reveals genetic variability in Rotylenchulus reniformis - (Peer Reviewed Journal)
Khanal, C., Kularathna, M.T., Ray, J.D., Stetina, S.R., McGawley, E.C., Overstreet, C. 2019. Single nucleotide polymorphism analysis using KASP assay reveals genetic variability in Rotylenchulus reniformis. Plant Disease. 103:1835-1842. https://doi.org/10.1094/PDIS-11-18-1975-RE.
Genotypic differences in yield loss of irrigated soybean attributable to charcoal rot Reprint Icon - (Peer Reviewed Journal)
Smith, J.R., Ray, J.D., Mengistu, A. 2018. Genotypic differences in yield loss of irrigated soybean attributable to charcoal rot. Journal of Crop Improvement. 32(6):781-800. https://doi.org/10.1080/15427528.2018.1516262.
Carbon isotope ratio fractionation among plant tissues of soybean Reprint Icon - (Peer Reviewed Journal)
Kaler, A., Bazzer, S., Sanz-Saez, A., Ray, J.D., Fritschi, F., Purcell, L. 2018. Carbon isotope ratio fractionation among plant tissues of soybean. The Plant Phenome Journal. 1:180002. https://doi.org/10.2135/tppj2018.04.0002.
Association mapping identifies loci for canopy temperature under drought in diverse soybean genotypes - (Peer Reviewed Journal)
Kaler, A.S., Ray, J.D., Schapaugh, W.T., Asebedo, A.R., King, A., Gbur, E.E., Purcell, L.C. 2018. Association mapping identifies loci for canopy temperature under drought in diverse soybean genotypes. Euphytica. 214:135. https://doi.org/10.1007/s10681-018-2215-2.
Glyphosate-resistant junglerice (Echinochloa colona) from Mississippi and Tennessee: Magnitude and resistance mechanisms - (Peer Reviewed Journal)
Nandula, V.K., Montgomery, G.B., Vennapusa, A.R., Jugulam, M., Giacomini, D.A., Ray, J.D., Bond, J.A., Steckel, L.E., Tranel, P.J. 2018. Glyphosate-resistant junglerice (Echinochloa colona) from Mississippi and Tennessee: Magnitude and resistance mechanisms. Weed Science. 66:603-610.
Identification of novel genomic loci associated with soybean shoot tissue macro- and micro-nutrient concentrations Reprint Icon - (Peer Reviewed Journal)
Dhanapal, A., Ray, J.D., Smith, J.R., Purcell, L.C., Fritschi, F.B. 2018. Identification of novel genomic loci associated with soybean shoot tissue macro- and micro-nutrient concentrations. The Plant Genome. 11:710066. https://doi.org/10.3835/plantgenome2017.07.0066.
Association mapping identifies loci for canopy coverage in diverse soybean genotypes - (Peer Reviewed Journal)
Kaler, A.S., Ray, J.D., Schapaugh, W.T., Davies, M.K., King, A.C., Purcell, L.C. 2018. Association mapping identifies loci for canopy coverage in diverse soybean genotypes. Molecular Breeding. 38:50. https://doi.org/10.1007/s11032-018-0810-5.
Multiple herbicide-resistant Junglerice (Echinochloa colona): Identification of genes potentially involved in resistance through differential gene expression analysis - (Peer Reviewed Journal)
Wright, A.A., Rodriguez-Carres, M., Sasidharan, R., Koski, L., Peterson, D.G., Nandula, V.K., Ray, J.D., Bond, J.A., Shaw, D.R. 2018. Multiple herbicide-resistant Junglerice (Echinochloa colona): Identification of genes potentially involved in resistance through differential gene expression analysis. Weed Science. 66:347-354.
Effect of charcoal rot on selected putative drought resistant soybean genotypes and yield - (Peer Reviewed Journal)
Mengistu, A., Smith, J.R., Arelli, P.R., Bellaloui, N., Chen, P., Shannon, G., Boykin, D.L., Ray, J.D. 2017. Effect of charcoal rot on selected putative drought resistant soybean genotypes and yield. Crop Protection Journal. 105:90-101.
Transcriptomic changes in Echinochloa colona in response to treatment with the herbicide imazamox - (Peer Reviewed Journal)
Wright, A.A., Sasidharan, R., Koski, L., Rodriguez-Carres, M., Peterson, D.G., Nandula, V.K., Ray, J.D., Bond, J.A., Shaw, D.R. 2018. Transcriptomic changes in Echinochloa colona in response to treatment with the herbicide imazamox. Planta. 247:369-379.
Genome-wide association mapping of carbon isotope and oxygen isotope ratios in diverse soybean genotypes - (Peer Reviewed Journal)
Kaler, A., Dhanapal, A., Ray, J.D., King, A., Fritschi, F., Purcell, L. 2017. Genome-wide association mapping of carbon isotope and oxygen isotope ratios in diverse soybean genotypes. Crop Science. 57:1-16.
Genome-wide association mapping of canopy wilting in diverse soybean genotypes - (Peer Reviewed Journal)
Kaler, A.S., Ray, J.D., Schapaugh, W.T., King, A.C., Purcell, L.C. 2017. Genome-wide association mapping of canopy wilting in diverse soybean genotypes. Theoretical and Applied Genetics. 130(10):2203-2217. https://doi.org/10.1007/s00122-017-2951-z.
The Path for the Development and Release of Heat Tolerant Soybean Lines - (Abstract Only)
Evaluation of Soybean Breeding Lines for Seed Germination and Composition under High Heat and Dryland Production in the Midsouthern USA - (Abstract Only)
Bellaloui, N., Smith, J.R., Mengistu, A., Ray, J.D., Gillen, A.M. 2017. Evaluation of Soybean Breeding Lines for Seed Germination and Composition under High Heat and Dryland Production in the Midsouthern USA. American Society of Plant Biologists Annual Meeting. 18.
Evaluation of exotically-derived soybean breeding lines for seed yield, germination, damage, and composition under dryland production in the midsouthern USA - (Peer Reviewed Journal)
Bellaloui, N., Smith, J.R., Mengistu, A., Ray, J.D., Gillen, A.M. 2017. Evaluation of exotically-derived soybean breeding lines for seed yield, germination, damage, and composition under dryland production in the midsouthern USA. Frontiers in Plant Science. 8(176):1-20. doi:10.3389/fpls.2017.00176.
Genome-wide association mapping of soybean chlorophyll traits based on canopy spectral reflectance and leaf extracts - (Peer Reviewed Journal)
Dhanapal, A.P., Ray, J.D., Singh, S.K., Hoyos-Villegas, V., Smith, J.R., Purcell, L.C., Fritschi, F.B. 2016. Genome-wide association mapping of soybean chlorophyll traits based on canopy spectral reflectance and leaf extracts. Biomed Central (BMC) Plant Biology. 16:174-189.
Meta-analysis to refine map position and reduce confidence intervals for delayed canopy wilting QTLs in soybean - (Peer Reviewed Journal)
Sadal, H., King, C., Chen, P., Ray, J.D., Cregan, P.B., Carter Jr, T.E., Li, Z., Abdel-Haleem, H.A., Matson, K.W., Schapaugh Jr, W., Purcell, L.C. 2016. Meta-analysis to refine map position and reduce confidence intervals for delayed canopy wilting QTLs in soybean. Molecular Breeding. 36:91-105.
Characterization of Fenoxaprop-P resistant Echinochloa colona from Mississippi - (Peer Reviewed Journal)
Wright, A.A., Nandula, V.K., Grier, L., Showmaker, K.C., Bond, J.A., Peterson, D.G., Ray, J.D., Shaw, D.R. 2017. Characterization of Fenoxaprop-P resistant Echinochloa colona from Mississippi. Weed Science. 61,4:588-595. https://doi.org/10.1614/WS-D-16-00024.1.
Phenotypic characterization of Cercospora sojina isolates collected from wide geographical areas - (Abstract Only)
Genome-wide association study of ureide concentration in diverse maturity group IV soybean [Glycine max (L.) Merr.] accessions - (Peer Reviewed Journal)
Ray, J.D., Dhanapal, A.P., Singh, S.K., Hoyos-Villegas, V., Smith, J.R., Purcell, L.C., King, C.A., Boykin, D.L., Cregan, P.B., Song, Q., Fritschi, F.B. 2015. Genome-wide association study of ureide concentration in diverse maturity group IV soybean [Glycine max (L.) Merr.] accessions. G3, Genes/Genomes/Genetics. 5:2391-2403.
Resistance to Phakopsora pachyrhizi in soybean PI 587905 maps to the Rpp1 locus and exhibits variable dominance associated with plant ontogeny Reprint Icon - (Peer Reviewed Journal)
Smith, J.R., Ray, J.D., Morel, W., Frederick, R.D., Walker, D.R. 2015. Resistance to Phakopsora pachyrhizi in soybean PI 587905 maps to the Rpp1 locus and exhibits variable dominance associated with plant ontogeny. Journal of Crop Improvement. 29:581-601.
Confirmation of delayed canopy wilting QTLs from multiple soybean mapping populations - (Peer Reviewed Journal)
Hwang, S., King, C.A., Ray, J.D., Cregan, P.B., Chen, P., Carter Jr, T.E., Li, Z., Abdel-Haleem, H.A., Matson, K.W., Schapaugh Jr., W., Purcell, L.C. 2015. Confirmation of delayed canopy wilting QTLs from multiple soybean mapping populations. Journal of Theoretical and Applied Genetics. 128:2047-2065.
Genome-wide association analysis of diverse soybean genotypes reveals novel markers for nitrogen traits - (Peer Reviewed Journal)
Dhanapal, A.P., Ray, J.D., Singh, S.K., Hoyos-Villegas, V., Smith, J.R., Purcell, L.C., King, C.A., Fritschi, F.B. 2015. Genome-wide association analysis of diverse soybean genotypes reveals novel markers for nitrogen traits. The Plant Genome. DOI: 10.3835/plantgenome2014.11.0086.
Response of sugarcane to carbon dioxide enrichment and elevated temperature - (Abstract Only)
Ecology, Behavior and Bionomics: First Genotyping of Spodoptera frugiperda (J. E. Smith)(Lepidoptera: Noctuidae) Progeny from Crosses between Bt-Resistant and Bt-Susceptible Populations, and 65-Locus Discrimination of Isofami - (Peer Reviewed Journal)
Arias De Ares, R.S., Portilla, M., Ray, J.D., Blanco, C.A., Simpson, S.A., Scheffler, B.E. 2015. Ecology, Behavior and Bionomics: First Genotyping of Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) Progeny from Crosses between Bt-Resistant and Bt-Susceptible Populations, and 65-Locus Discrimination of Isofamilies. The Journal of Botanical Society. 4:18-29.
Relationships between microsclerotia content and hyperspectral reflectance data in soybean tissue infected by Macrophomina phaseolina - (Peer Reviewed Journal)
Fletcher, R.S., Smith, J.R., Mengistu, A., Ray, J.D. 2014. Relationships between microsclerotia content and hyperspectral reflectance data in soybean tissue infected by Macrophomina phaseolina. American Journal of Plant Sciences. 5:3737-3744.
Registration of the KS4895 x Jackson mapping population (AR93705) - (Peer Reviewed Journal)
Hwang, S., King, C.A., Davies, M.K., Charlson, D.V., Ray, J.D., Cregan, P.B., Sneller, C.H., Chen, P., Carter Jr, T.E., Purcell, L.C. 2015. Registration of the KS4895 x Jackson mapping population (AR93705). Journal of Plant Registrations. doi: 10.3198/jpr2014.05.0034crmp.
Pathogenicity of diaporthe spp. isolates recovered from soybean (glycine max) seeds in Paraguay - (Peer Reviewed Journal)
Mengistu, A., Castlebury, L.A., Morel, W., Ray, J.D., Smith, J.R. 2014. Pathogenicity of diaporthe spp. isolates recovered from soybean (glycine max) seeds in Paraguay. Canadian Journal of Plant Pathology. 36:470-474.
Identification of a single gene for seed coat impermeability in soybean PI 594619 - (Peer Reviewed Journal)
Kebede, H.A., Smith, J.R., Ray, J.D. 2014. Identification of a single gene for seed coat impermeability in soybean PI 594619. Journal of Theoretical and Applied Genetics. 127(9):1991-2003.
Identification of Rotylenchulus reniformis resistant Glycine lines - (Peer Reviewed Journal)
Stetina, S.R., Smith, J.R., Ray, J.D. 2014. Identification of Rotylenchulus reniformis resistant Glycine lines. Journal of Nematology. 46:1-7.
Maturity effects on colony-forming units of Macrophomina phaseolina infection as measured using near-isogenic lines of soybeans - (Peer Reviewed Journal)
Mengistu, A., Ray, J.D., Smith, J.R., Boykin, D.L. 2014. Maturity effects on colony-forming units of Macrophomina phaseolina infection as measured using near-isogenic lines of soybeans. Journal of Crop Improvement. 28:38-56.
Genetics and mapping of quantitative traits for nodule number, weight, and size in soybean (Glycine max L. [Merr.]) - (Peer Reviewed Journal)
Hwang, S., Ray, J.D., Cregan, P.B., King, C., Davies, M., Purcell, L. 2013. Genetics and mapping of quantitative traits for nodule number, weight, and size in soybean (Glycine max L. [Merr.]). Euphytica. 195:419-434.
EPSPS amplification in glyphosate-resistant spiny amaranth (Amaranthus spinosus): a case of gene transfer via interspecific hybridization from glyphosate-resistant Palmer amaranth (Amaranthus palmeri - (Peer Reviewed Journal)
Nandula, V.K., Wright, A.A., Molin, W.T., Ray, J.D., Bond, J.A., Eubank, T.W. 2013. EPSPS amplification in glyphosate-resistant spiny amaranth (Amaranthus spinosus): a case of gene transfer via interspecific hybridization from glyphosate-resistant Palmer amaranth (Amaranthus palmeri. Pest Management Science. pg.3754. doi:10.1002.
QTL analysis of shoot ureide and nitrogen concentrations in soybean (Glycine max L. [Merr.]) - (Peer Reviewed Journal)
Hwang, S., King, C., Davies, M., Ray, J.D., Cregan, P.B., Purcell, L. 2013. QTL analysis of shoot ureide and nitrogen concentrations in soybean (Glycine max L. [Merr.]). Crop Science. 53:2421-2433.
Quantification of leaf pigments in soybean (Glycine max (L.) Merr.) based on wavelet decomposition of hyperspectral features - (Peer Reviewed Journal)
Singh, S.K., Hoyos-Villegas, V., Ray, J.D., Smith, J.R., Fritschi, F.B. 2013. Quantification of leaf pigments in soybean (Glycine max (L.) Merr.) based on wavelet decomposition of hyperspectral features. Field Crops Research. 149:20-32.
Glyphosate resistance in tall waterhemp (Amaranthus tuberculatus) from Mississippi is due to both altered target-site and nontarget-site mechanisms - (Peer Reviewed Journal)
Nandula, V.K., Ray, J.D., Ribeiro, D.N., Pan, Z., Reddy, K.N. 2013. Glyphosate resistance in tall waterhemp (Amaranthus tuberculatus) from Mississippi is due to both altered target-site and nontarget-site mechanisms. Weed Science. 61:374-383.
Glycine accessions evaluated for resistance to Rotylenchulus reniformis - (Abstract Only)
Stetina, S.R., Ray, J.D., Smith, J.R. 2012. Glycine accessions evaluated for resistance to Rotylenchulus reniformis. Journal of Nematology. 44:493.
A new gene that controls seed coat wrinkling in soybean - (Peer Reviewed Journal)
Kebede, H.A., Smith, J.R., Ray, J.D. 2012. A new gene that controls seed coat wrinkling in soybean. Euphytica. 189:309-320.
Soybean lines evaluated for resistance to reniform nematode - (Abstract Only)
Stetina, S.R., Smith, J.R., Ray, J.D. 2012. Soybean lines evaluated for resistance to reniform nematode. Southern Soybean Conference Proceedings. March 7-8, 2012.
Microsatellite markers in plant pathogenic fungi - (Abstract Only)
Arias, R.S., Ray, J.D., Mengistu, A., Glynn, N.C., Scheffler, B.E. 2012. Microsatellite markers in plant pathogenic fungi. Meeting Proceedings.
Identification of a new soybean rust resistance gene in PI 567102B - (Peer Reviewed Journal)
Li, S., Smith, J.R., Ray, J.D., Frederick, R.D. 2012. Identification of a new soybean rust resistance gene in PI 567102B. Theoretical and Applied Genetics. 125:133-142.
Mapping a new gene that controls seed coat wrinkling in soybean - (Abstract Only)
Kebede, H.A., Smith, J.R., Ray, J.D. 2012. Mapping a new gene that controls seed coat wrinkling in soybean. Plant and Animal Genome Conference. January 14-18, 2012. http://pag.confex.com/pag/xx/webprogram/Paper2473.html.
Diversity and implications of soybean stem nitrogen concentration - (Peer Reviewed Journal)
Genomic location of a gene conditioning a miniature phenotype in soybean - (Peer Reviewed Journal)
Ray, J.D., Smith, J.R., Taliercio, E.W., Fritschi, F.B. 2011. Genomic location of a gene conditioning a miniature phenotype in soybean. Plant Biology. 55:26-32.
Seasonal progress of charcoal rot and its impact on soybean productivity - (Peer Reviewed Journal)
Mengistu, A., Ray, J.D., Bellaloui, N., Smith, J.R. 2011. Seasonal progress of charcoal rot and its impact on soybean productivity. Plant Disease. 95:1159-1166.
Genetic resistance to soybean rust in PI 567099A is at or near the Rpp3 locus - (Peer Reviewed Journal)
Ray, J.D., Smith, J.R., Morel, W., Bogado, N., Walker, D.R. 2011. Genetic resistance to soybean rust in PI 567099A is at or near the Rpp3 locus. Journal of Crop Improvement. 25(3):219-231.
Isolation and characterisation of the first microsatellite markers for Cyperus rotundus - (Peer Reviewed Journal)
Arias, R.S., Molin, W.T., Ray, J.D., Peel, M., Scheffler, B.E. 2011. Isolation and characterisation of the first microsatellite markers for Cyperus rotundus. Weed Research. 51:451-460.
Impact of elevated carbon dioxide and temperature on growth and sugar yield of the C4 sugarcane - (Peer Reviewed Journal)
Allen Jr, L.H., Vu, J.C., Anderson, J.C., Ray, J.D. 2011. Impact of elevated carbon dioxide and temperature on growth and sugar yield of the C4 sugarcane. Current Topics in Plant Biology. 12:171-178.
Discriminating microsatellites from Macrophomina phaseolina and their potential association to biological functions - (Peer Reviewed Journal)
Arias, R.S., Ray, J.D., Mengistu, A., Scheffler, B.E. 2011. Discriminating microsatellites from Macrophomina phaseolina and their potential association to biological functions. Plant Pathology. 60(4):709-718 DOI:10.1111/j.1365-3059.2010.02421.x.
Effects of maturity genotypic background and temperature on seed mineral composition in near-isogenic soybean lines in the early soybean production system - (Peer Reviewed Journal)
Bellaloui, N., Smith, J.R., Gillen, A.M., Ray, J.D. 2011. Effects of maturity genotypic background and temperature on seed mineral composition in near-isogenic soybean lines in the early soybean production system. Crop Science. 51:1161-1171.
Effect of maturity on seed sugars as measured on near-isogenic soybean (Glycine max)lines - (Peer Reviewed Journal)
Bellaloui, N., Smith, J.R., Gillen, A.M., Ray, J.D. 2010. Effect of maturity on seed sugars as measured on near-isogenic soybean (Glycine max)lines. Crop Science. 50:1978-1987.
High-oil soybean for more efficient energy conversion to soy-based biodisel - (Peer Reviewed Journal)
Paris, R.L., Ray, J.D., Smith, J.R., Boykin, D.L. 2009. High-oil soybean for more efficient energy conversion to soy-based biodisel. Crop Science. 18(4):259-266.
Fingerprinting the bad guys, SSR DNA-profiling of Nutsedge - (Abstract Only)
Effects pf Maturity on Seed Nutrient Composition in the Early Soybean Production System as Measured on Near-Isogenic Soybean Lines - (Abstract Only)
Sugarcane Response to High Water Tables and Intermittent Flooding - (Peer Reviewed Journal)
Ray, J.D., Sinclair, T.R., Glaz, B.S. 2010. Sugarcane Response to High Water Tables and Intermittent Flooding. Journal of Crop Improvement. 24:12-27.
Polygenic Inheritance of Canopy Wilting in Soybean [Glycine max (L.) Merr.] - (Peer Reviewed Journal)
Charlson, D.V., Bhatnagar, S., King, C.A., Ray, J.D., Sneller, C.H., Carter Jr, T.E., Purcell, L.C. 2009. Polygenic Inheritance of Canopy Wilting in Soybean [Glycine max (L.) Merr.]. Theoretical and Applied Genetics. 119: 587-594.
Genetics and mapping of adult plant rust resistance in soybean PI 587886 and PI 587880A - (Peer Reviewed Journal)
Ray, J.D., Wilfriod, M., Smith, J.R., Frederick, R.D., Miles, M.R. 2009. Genetics and mapping of adult plant rust resistance in soybean PI 587886 and PI 587880A. Theoretical and Applied Genetics. 119:271-280.
Isolation and characterization of a cotton cdh-like gene - (Peer Reviewed Journal)
Taliercio, E.W., Ray, J.D., Scheffler, J.A. 2009. Isolation and characterization of a cotton cdh-like gene. Molecular Biology Reports.
Seasonal Progress of Phomopsis longicolla on Soybean Plant Parts and its Relationship to Seed Quality - (Peer Reviewed Journal)
Mengistu, A., Boykin, D.L., Castlebury, L.A., Smith, J.R., Ray, J.D., Bellaloui, N. 2009. Seasonal Progress of Phomopsis longicolla on Soybean Plant Parts and its Relationship to Seed Quality. Plant Disease. 93:408-411.
Effect of Maturity on Seed Composition in the Early Soybean Production System as Measured on Near-isogenic Soybean Lines - (Peer Reviewed Journal)
Bellaloui, N., Smith, J.R., Ray, J.D., Gillen, A.M. 2009. Effect of Maturity on Seed Composition in the Early Soybean Production System as Measured on Near-isogenic Soybean Lines. Crop Science.49:608-620
Impact of elevated carbon dioxide and temperature on fresh weight and sugar yield of sugar cane - (Proceedings)
Allen Jr, L.H., Vu, J.C., Anderson, J.C., Ray, J.D. 2009. Impact of elevated carbon dioxide and temperature on fresh weight and sugar yield of sugar cane. Caribbean Food Crops Society Proceedings. 44(2):267-278.
Soybean Molecular Linkage Group B1 Cooresponds to Classical Linkage Group 16 Based on Map Location of the 1f2 Gene - (Peer Reviewed Journal)
Seversike, T.M., Ray, J.D., Shultz, J.L., Purcell, L.C. 2008. Soybean Molecular Linkage Group B1 Cooresponds to Classical Linkage Group 16 Based on Map Location of the 1f2 Gene. Journal of Theoretical and Applied Genetics. 117:143-147
Soybean Mineral Nutrition and Biotic Relationship - ()
Ray, J.D., Fritschi, F.B. 2009. Soybean Mineral Nutrition and Biotic Relationship. Book Chapter. p. 29-56
Adult Plant Evaluation of Soybean Accessions for Resistance to Phakopsora pachyrhizi in the Field and Greenhouse in Paraguay - (Peer Reviewed Journal)
Miles, M.R., Morel, W., Ray, J.D., Smith, J.R., Frederick, R.D., Hartman, G.L. 2008. Adult Plant Evaluation of Soybean Accessions for Resistance to Phakopsora pachyrhizi in the Field and Greenhouse in Paraguay. Plant Disease. 92(1):96-105.
Mapping Two Genes in the Purine Metabolism Pathway of Soybean. - (Peer Reviewed Journal)
Shultz, J.L., Ray, J.D., Smith, J.R. 2008. Mapping Two Genes in the Purine Metabolism Pathway of Soybean.. DNA Research. 19(3):264-269
Charcoal Rot Disease Assessment of Soybean Genotypes Using a Colony Forming Unit Index - (Peer Reviewed Journal)
Mengistu, A., Ray, J.D., Smith, J.R., Paris, R.L. 2007. Charcoal Rot Disease Assessment of Soybean Genotypes Using a Colony Forming Unit Index. Crop Science. 47:2453-2461.
A Sequence Based Synteny Map Between Soybean and Arabidopis Thaliana. - (Peer Reviewed Journal)
Shultz, J.L., Ray, J.D., Lightfoot, D.A. 2007. A Sequence Based Synteny Map Between Soybean and Arabidopis Thaliana. Genome. DOI:10.1186/1471-2164-8-8
A SOYBEAN MAPPING POPULATION SPECIFIC TO THE EARLY SOYBEAN PRODUCTION SYSTEM - (Peer Reviewed Journal)
Shultz, J.L., Ray, J.D., Smith, J.R., Mengistu, A. 2007. A soybean mapping population specific to the early soybean production system. DNA Sequence. 18(2):104-111.
Charcoal Rot Disease Assessment of Soybean Genotypes and Prelimary Genetic Analysis - (Proceedings)
Mengistu, A., Smith, J.R., Ray, J.D., Paris, R. 2006. Charcoal Rot Disease Assessment of Soybean Genotypes and Prelimary Genetic Analysis. Meeting Proceedings. VII World Soybean Research Conference. Foz do 1guassu, PR, Brazil. # 228, p 237.
Soybean leaf nitrogen, chlorophyll content, and chlorophyll A/B ratio - (Peer Reviewed Journal)
Fritschi, F.B., Ray, J.D. 2007. Soybean leaf nitrogen, chlorophyll content, and chlorophyll A/B ratio. Photosynthetica. 45:92-98.
ON THE HUNT FOR NEW MOLECULAR MARKERS: EVALUATING SOYBEAN (GLYCINE MAX) SSR'S FOR COTTON (GOSSYPIUM HIRSUTUM) - (Peer Reviewed Journal)
Scheffler, J.A., Scheffler, B.E., Ray, J.D., Taliercio, E.W. 2006. On the hunt for new molecular markers: evaluating soybean (glycine max) ssr's for cotton (gossypium hirsutum). Indian Society for Cotton Improvement. Vol 31: 79-87
LARGE APPLICATION OF FERTILIZER N AT PLANTING AFFECTS SEED PROTEIN AND OIL CONCENTRATIONS IN THE EARLY SOYBEAN PRODUCTION SYSTEM. - (Peer Reviewed Journal)
Ray, J.D., Fritschi, F.B., Heatherly, L.G. 2006. Large application of fertilizer n at planting affects seed protein and oil concentrations in the early soybean production system. Field Crop Research. Vol 99: 67-74
CHARACTERIZATION AND EXPRESSION OF A PUTATIVE RETINOBLASTOMA PROTEIN BINDING GENE FROM GOSSYPIUM HIRSUTUM - (Peer Reviewed Journal)
Taliercio, E.W., Ray, J.D. 2006. Characterization and expression of a putative retinoblastoma protein binding gene from gossypium hirsutum. DNA Sequence. Vol 17: 307-310
Comparsion of Disease Assessment of Soybean Genotypes in the Presence of Charcoal Rot - (Proceedings)
Mengistu, A., Paris, R., Smith, J.R., Ray, J.D. 2006. Comparsion of Disease Assessment of Soybean Genotypes in the Presence of Charcoal Rot. [Meeting Abstract]. 93:S61
INFLUENCE OF LARGE AMOUNTS OF NITROGEN APPLIED AT PLANTING ON NONIRRIGATED AND IRRIGATED SOYBEAN - (Peer Reviewed Journal)
Ray, J.D., Fritschi, F.B., Heatherly, L.G. 2006. Influence of large amounts of nitrogen applied at planting on nonirrigated and irrigated soybean. Crop Science. Vol 46: 52-60
Incorporation of Rhodamine B into Male Tobacco Budworm Moths Heliothis Virescens to use as a Marker for Mating Studies - (Peer Reviewed Journal)
Blanco, C.A., Perera, O.P., Ray, J.D., Taliercio, E.W., Williams III, L.H. 2006. INCORPORATION OF RHODAMINE B INTO MALE TOBACCO BUDWORM MOTHS HELIOTHIS VIRESCENS TO USE AS A MARKER FOR MATING STUDIES. Journal of Insect Science. 6:05. AVAILABLE ONLINE: insectscience.org/6.05.
ON THE HUNT FOR NEW MOLECULAR MARKERS - (Abstract Only)
HEAT STRESS IN THE EARLY SOYBEAN PRODUCTION SYSTEM - (Abstract Only)
Smith, J.R., Fritschi, F.B., Ray, J.D., Mengistu, A., Daughtry, L., Paris, R.L., Nelson, R.L. 2004. Heat stress in the early soybean production system [abstract]. 10th Biennial Conference of the Cellular and Molecular Biology of the Soybean Program. p. 38.
USE OF MOLECULAR TECHNIQUES TO DIFFERENTIATE THE DIAPORTHE/PHOMPSIS COMPLEX - (Proceedings)
Mengistu, A., Ray, J.D. 2004. Use of molecular techniques to differentiate the diaporthe/phompsis complex [abstract]. VII World Soybean Research Conference. p. 69.
MOLECULAR MARKER POSSIBILITIES - GOING BEYOND GOSSYPIUM - (Abstract Only)
Scheffler, J.A., Ray, J.D., Scheffler, B.E., Techan, N. 2004. Molecular marker possibilities - going beyond Gossypium [abstract]. National Cotton Council Beltwide Cotton Conference. p. 1130.
Soybean and Corn - ()
Heatherly, L.G., Ray, J.D. 2007. Soybean and Corn. American Society of Agronomy Monograph Series. p. 477-533.
REMOTE SENSING AND IMPLICATIONS FOR VARIABLE-RATE APPLICATION USING AGRICULTURAL AIRCRAFT. - (Proceedings)
Thomson, S.J., Smith, L.A., Ray, J.D., Zimba, P.V. 2003. Remote sensing and implications for variable-rate application using agricultural aircraft.Proceedings of the International Symposium on Optical Science and Technology. V5153:13-20.
SOYBEAN NATURAL CROSS-POLLINATION RATES - (Peer Reviewed Journal)
Ray, J.D., Kilen, T.C., Abel, C.A., Paris, R.L. Soybean natural cross-pollination rates. Environmental Biosafety Research. 2:133-138
REAL TIME PCR ANALYSIS OF SELECTED GENES EXPRESSED IN LEAF TISSUE DURING SOIL DRYING - (Proceedings)
Ray, J.D., Fritschi, F.B. 2004. Real time pcr analysis of selected genes expressed in leaf tissue during soil drying [abstract]. VII World Soybean Research Conference. p. 178.
PHOTON FLUX DENSITY INFLUENCES GRASS RESPONSES TO EXTENDED PHOTOPERIOD - (Peer Reviewed Journal)
Sinclair, T.R., Ray, J.D., Premazzi, M.L., Mislevy, P. 2004. Photon flux density influences grass responses to extended photoperiod. Journal of Experimental Botany. 51:69-74.
GROWTH OF SUBTROPICAL FORAGE GRASSES UNDER EXTENDED PHOTOPERIOD DURING SHORT-DAYLENGTH MONTHS. - (Peer Reviewed Journal)
Sinclair, T.R., Ray, J.D., Mislevy, P., Premazzi, L.M. 2003. Growth of subtropical forage grasses under extended photoperiod during short-daylength months. Crop Science. 43:618-623.
THE EFFECT OF VAPOR PRESSURE DEFICIT ON MAIZE TRANSPIRATIAON RESPONSE TO A DRYING SOIL - (Peer Reviewed Journal)
SUGARCANE TRANSPIRATION RESPONSE TO DRYING SOIL - (Peer Reviewed Journal)
EFFECT OF DROUGHT HISTORY ON RECOVERY OF TRANSPIRATION, PHOTOSYNTHESIS, ANDLEAF AREA DEVELOPMENT IN MAIZE. - (Proceedings)
THE EFFECT OF POT SIZE ON GROWTH AND TRANSPIRATION OF MAIZE AND SOYBEAN DURING WATER DEFICIT STRESS - (Peer Reviewed Journal)
ENVIRONMENTAL LIMITATIONS TO POTENTIAL FORAGE PRODUCTION DURING THE WINTER MONTHS IN FLORIDA. - (Proceedings)
PRELIMINARY SURVEY OF ROOT AERENCHYMA IN TRIPSACUM. - (Peer Reviewed Journal)