Ramsey Lewis

Crop and Soil Sciences

Works (47)

2019 | journal article

Genetic analysis of Phn7.1, a major QTL conferring partial resistance to Phytophthora nicotianae in Nicotiana tabacum

MOLECULAR BREEDING, 39(1).

By: J. Ma, C. Heim, M. Humphry, J. Nifong & R. Lewis

Source: NC State University Libraries
Added: January 21, 2019

2019 | journal article

Heterosis in Flue-Cured Tobacco and Its Utility in Predicting Transgressive Segregation within Derived Populations of Inbred Lines

CROP SCIENCE, 59(3), 957–967.

By: A. Dexter-Boone & R. Lewis

Source: Web Of Science
Added: June 4, 2019

2019 | journal article

Identification and validation of SNP markers associated with Wz-mediated Phytophthora nicotianae resistance in Nicotiana tabacum L.

MOLECULAR BREEDING, 39(7).

By: R. Shi, H. Hubert, A. Dexter-Boone, J. Zeng, S. Kernodle & R. Lewis

Source: Web Of Science
Added: July 22, 2019

2018 | journal article

Characterization of Phytophthora nicotianae resistance conferred by the introgressed Nicotiana rustica region, Wz, in flue-cured tobacco

Plant Disease, 102(2), 309–317.

By: K. McCorkle, K. Drake-Stowe, R. Lewis & D. Shew

Source: NC State University Libraries
Added: August 6, 2018

2018 | journal article

Filter paper-based spin column method for cost-efficient DNA or RNA purification

PLOS ONE, 13(12).

By: R. Shi, R. Lewis & D. Panthee

Source: NC State University Libraries
Added: December 31, 2018

2017 | journal article

Heterosis, transmission genetics, and selection for increased growth rate in a N. tabacum x synthetic tobacco cross

Molecular Breeding, 37(4).

By: W. Hancock & R. Lewis

Source: NC State University Libraries
Added: August 6, 2018

2017 | journal article

Multiple disease resistance loci affect soilborne disease resistance in tobacco (Nicotiana tabacum)

Phytopathology, 107(9), 1055–1061.

By: K. Drake-Stowe, N. Bakaher, S. Goepfert, B. Philippon, R. Mark, P. Peterson, R. Lewis

Source: NC State University Libraries
Added: August 6, 2018

2017 | journal article

A reference genome for Nicotiana tabacum enables map-based cloning of homeologous loci implicated in nitrogen utilization efficiency

BMC Genomics, 18.

By: K. Edwards, N. Fernandez-Pozo, K. Drake-Stowe, M. Humphry, A. Evans, A. Bombarely, F. Allen, R. Hurst ...

Source: NC State University Libraries
Added: August 6, 2018

2017 | journal article

The tobacco trichome exudate Z-abienol and its relationship with plant resistance to phytophthora nicotianae

Plant Disease, 101(7), 1214–1221.

By: W. Steede, J. Ma, D. Eickholt, K. Drake-Stowe, S. Kernodle, H. Shew, D. Danehower, R. Lewis

Source: NC State University Libraries
Added: August 6, 2018

2016 | journal article

Expression of a constitutively active nitrate reductase variant in tobacco reduces tobacco-specific nitrosamine accumulation in cured leaves and cigarette smoke

Plant Biotechnology Journal, 14(7), 1500–1510.

By: J. Lu, L. Zhang, R. Lewis, L. Bovet, S. Goepfert, A. Jack, J. Crutchfield, H. Ji, R. Dewey

Source: NC State University Libraries
Added: August 6, 2018

2016 | journal article

Heat unit accumulation and days to anthesis relationship in tobacco genotypes with an introgressed qtl affecting leaf number

Crop Science, 56(6), 3228–3236.

Source: NC State University Libraries
Added: August 6, 2018

2015 | journal article

Black shank resistance and agronomic performance of flue-cured tobacco lines and hybrids carrying the introgressed Nicotiana rustica region, Wz

Crop Science, 55(1), 79–86.

By: K. Drake, J. Moore, P. Bertrand, B. Fortnum, P. Peterson & R. Lewis

Source: NC State University Libraries
Added: August 6, 2018

2015 | journal article

Genetic factors for enhancement of nicotine levels in cultivated tobacco

Scientific Reports, 5.

By: B. Wang, R. Lewis, J. Shi, Z. Song, Y. Gao, W. Li, H. Chen, R. Qu

Source: NC State University Libraries
Added: August 6, 2018

2015 | journal article

Identification of maternal haploids of Nicotiana tabacum aided by transgenic expression of green fluorescent protein: evidence for chromosome elimination in the N-tabacum x N-africana interspecific cross

Molecular Breeding, 35(9).

Source: NC State University Libraries
Added: August 6, 2018

2015 | journal article

Mapping quantitative trait loci determining seed longevity in tobacco (Nicotiana tabacum L.)

Euphytica, 202(3), 479–486.

By: M. Agacka-Modoch, M. Nagel, T. Doroszewska, R. Lewis & A. Borner

Source: NC State University Libraries
Added: August 6, 2018

2015 | journal article

Transgenic and mutation-based suppression of a berberine bridge enzyme-Like (BBL) gene family reduces alkaloid content in field-grown tobacco

PLoS One, 10(2).

Source: NC State University Libraries
Added: August 6, 2018

2014 | journal article

Allopolyploidy and the evolution of plant virus resistance

BMC Evolutionary Biology, 14.

By: J. Gottula, R. Lewis, S. Saito & M. Fuchs

Source: NC State University Libraries
Added: August 6, 2018

2014 | journal article

Effect of an introgressed Nicotiana tomentosa leaf number QTL on yield and quality characteristics in flue-cured tobacco

Crop Science, 54(2), 586–594.

By: D. Eickholt & R. Lewis

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

(R)-nicotine biosynthesis, metabolism and translocation in tobacco as determined by nicotine demethylase mutants

Phytochemistry, 95, 188–196.

By: B. Cai, A. Jack, R. Lewis, R. Dewey & L. Bush

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Breeding cycles expedited by FT-mediated reduction in generation time

Crop Science, 53(6), 2384–2391.

By: D. Eickholt & R. Lewis

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Long-term genetic improvement and genetic diversity of Croatian flue-cured tobacco (Nicotiana tabacum L.) cultivars

Crop Science, 53(1), 112–120.

By: H. Sarcevic, J. Gunjaca, A. Budimir, M. Boic, S. Bolaric, M. Bukan, R. Lewis, V. Kozumplik

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

Stalk rot resistance in Maksimir 3 synthetic maize population after four cycles of recurrent selection

Genetika-Belgrade, 45(3), 921–928.

By: M. Bukan, H. Sarcevic, I. Buhinicek, B. Palaversic, R. Lewis & V. Kozumplik

Source: NC State University Libraries
Added: August 6, 2018

2013 | journal article

An introgressed Nicotiana rustica genomic region confers resistance to Phytophthora nicotianae in cultivated tobacco

Crop Science, 53(4), 1366–1374.

By: K. Drake & R. Lewis

Source: NC State University Libraries
Added: August 6, 2018

2012 | journal article

Development of CAPS and dCAPS markers for CYP82E4, CYP82E5v2 and CYP82E10 gene mutants reducing nicotine to nornicotine conversion in tobacco

Molecular Breeding, 29(3), 589–599.

By: D. Li, R. Lewis, A. Jack, R. Dewey, S. Bowen & R. Miller

Source: NC State University Libraries
Added: August 6, 2018

2012 | journal article

Growth chamber evaluation of a tobacco 'Beinhart 1000' x 'Hicks' mapping population for quantitative trait loci affecting resistance to multiple races of Phytophthora nicotianae

Crop Science, 52(1), 91–98.

By: V. Vontimitta & R. Lewis

Source: NC State University Libraries
Added: August 6, 2018

2012 | journal article

Mapping of quantitative trait loci affecting resistance to Phytophthora nicotianae in tobacco (Nicotiana tabacum L.) line Beinhart-1000

Molecular Breeding, 29(1), 89–98.

By: V. Vontimitta & R. Lewis

Source: NC State University Libraries
Added: August 6, 2018

2011 | journal article

Identification of tobacco haploids on the basis of transgenic overexpression of PAP1 from Arabidopsis thaliana

Crop Science, 51(4), 1491–1497.

By: R. Lewis & C. Rose

Source: NC State University Libraries
Added: August 6, 2018

2011 | journal article

Variability for resistance to Phytophthora nicotianae within a collection of Nicotiana rustica accessions

Plant Disease, 95(11), 1443–1447.

By: J. Nifong, J. Nicholson, H. Shew & R. Lewis

Source: NC State University Libraries
Added: August 6, 2018

2010 | journal article

Agronomic performance of tobacco mosaic virus-resistant tobacco lines and hybrids possessing the resistance gene N introgressed on different chromosomes

Crop Science, 50(4), 1339–1347.

By: R. Lewis & C. Rose

Source: NC State University Libraries
Added: August 6, 2018

2010 | journal article

Analysis of a nicotiana tabacum l. Genomic region controlling two leaf surface chemistry traits

Journal of Agricultural and Food Chemistry, 58(1), 294–300.

By: V. Vontimitta, D. Danehower, T. Steede, H. Moon & R. Lewis

Source: NC State University Libraries
Added: August 6, 2018

2010 | journal article

Three nicotine demethylase genes mediate nornicotine biosynthesis in Nicotiana tabacum L Functional characterization of the CYP82E10 gene

Phytochemistry, 71(17-18), 1988–1998.

By: R. Lewis, S. Bowen, M. Keogh & R. Dewey

Source: NC State University Libraries
Added: August 6, 2018

2009 | journal article

Changes in genetic diversity of US flue-cured tobacco germplasm over seven decades of cultivar development

Crop Science, 49(2), 498–508.

By: H. Moon, J. Nicholson, A. Heineman, K. Lion, P. Hoeven, A. Hayes, R. Lewis

Source: NC State University Libraries
Added: August 6, 2018

2009 | journal article

Microsatellite-based analysis of tobacco (Nicotiana tabacum L.) genetic resources

Crop Science, 49(6), 2149–2159.

By: H. Moon, J. Nifong, J. Nicholson, A. Heineman, K. Lion, R. Hoeven, A. Hayes, R. Lewis

Source: NC State University Libraries
Added: August 6, 2018

2009 | journal article

A method for accelerated trait conversion in plant breeding

Theoretical and Applied Genetics, 118(8), 1499–1508.

By: R. Lewis & S. Kernodle

Source: NC State University Libraries
Added: August 6, 2018

2008 | journal article

Evaluation of tobacco germplasm for seedling resistance to stem rot and target spot caused by Thanatephorus cucumeris

Plant Disease, 92(3), 425–430.

By: P. Elliott, R. Lewis, H. Shew, W. Gutierrez & J. Nicholson

Source: NC State University Libraries
Added: August 6, 2018

2008 | journal article

RNA interference (RNAi)-induced suppression of nicotine demethylase activity reduces levels of a key carcinogen in cured tobacco leaves

Plant Biotechnology Journal, 6(4), 346–354.

By: R. Lewis, A. Jack, J. Morris, V. Robert, L. Gavilano, B. Siminszky, L. Bush, A. Hayes, R. Dewey

Source: NC State University Libraries
Added: August 6, 2018

2008 | journal article

Use of transferable Nicotiana tabacum L. microsatellite markers for investigating genetic diversity in the genus Nicotiana

Genome, 51(8), 547–559.

By: H. Moon, J. Nicholson & R. Lewis

Source: NC State University Libraries
Added: August 6, 2018

2007 | journal article

Analysis of an introgressed Nicotiana tomentosa genomic region affecting leaf number and correlated traits in Nicotiana tabacum

Theoretical and Applied Genetics, 114(5), 841–854.

By: R. Lewis, S. Milla & S. Kernodle

Source: NC State University Libraries
Added: August 6, 2018

2007 | journal article

Aspects of the evolution of Nicotiana tabacum L. and the status of the United States Nicotiana Germplasm Collection

Genetic Resources and Crop Evolution, 54(4), 727–740.

By: R. Lewis & J. Nicholson

Source: NC State University Libraries
Added: August 6, 2018

2007 | journal article

Evaluation of Nicotiana tabacum genotypes possessing Nicotiana africana-derived genetic tolerance to potato virus Y

Crop Science, 47(5), 1975–1984.

By: R. Lewis

Source: NC State University Libraries
Added: August 6, 2018

2007 | journal article

The negative influence of N-mediated TMV resistance on yield in tobacco: linkage drag versus pleiotropy

Theoretical and Applied Genetics, 115(2), 169–178.

By: R. Lewis, L. Linger, M. Wolff & E. Wernsman

Source: NC State University Libraries
Added: August 6, 2018

2006 | journal article

Identification of germplasm of possible value for confronting an unfavorable inverse genetic correlation in tobacco

Crop Science, 46(4), 1764–1771.

By: R. Lewis

Source: NC State University Libraries
Added: August 6, 2018

2005 | journal article

Molecular and genetic characterization of Nicotiana glutinosa L. chromosome segments in Tobacco mosaic virus-resistant tobacco accessions

Crop Science, 45(6), 2355–2362.

By: R. Lewis, S. Milla & J. Levin

Source: NC State University Libraries
Added: August 6, 2018

2005 | journal article

RAPD and SCAR markers linked to an introgressed gene conditioning resistance to Peronospora tabacina DB Adam. in tobacco

Crop Science, 45(6), 2346–2354.

By: S. Milla, J. Levin, R. Lewis & R. Rufty

Source: NC State University Libraries
Added: August 6, 2018

2019 | journal article

Transfer of resistance to potato virus Y (PVY) from Nicotiana africana to Nicotiana tabacum: possible influence of tissue culture on the rate of introgression

Theoretical and Applied Genetics, 110(4), 678–687.

By: R. Lewis

Source: NC State University Libraries
Added: August 6, 2018

2003 | journal article

Incorporation of tropical maize germplasm into inbred lines derived from temperate x temperate-adapted tropical line crosses: agronomic and molecular assessment

Theoretical and Applied Genetics, 107(5), 798–805.

By: R. Lewis & M. Goodman

Source: NC State University Libraries
Added: August 6, 2018

2001 | journal article

Efforts to initiate construction of a disease resistance package on a designer chromosome in tobacco

Crop Science, 41(5), 1420–1427.

By: R. Lewis & E. Wernsman

Source: NC State University Libraries
Added: August 6, 2018