Dr. John (Jay) Warner Scott, Professor
Gulf Coast Research and Education Center
University of Florida, IFAS
14625 CR 672Wimauma, Florida 33598
E-Mail: jwsc@ifas.ufl.edu
Websites: http://tombreeding.ifas.ufl.edu , http://tgc.ifas.ufl.edu , http://breeders.ifas.ufl.edu
Phone: 813-633-4135
SunCom: 514-6825
Fax: 813-634-0001
Affiliate Department: Horticultural Science
Graduate Faculty Status: DRF
Date joined GCREC, UF Faculty: July 1, 1981
Education:
Ph.D., Ohio State University, 1978, Horticulture
M.S., Michigan State University, 1974, Horticulture
B.S., Michigan State University, 1970, Fisheries and Wildlife
Departmental Assignment:
Research (90%) - Tomato improvement with emphasis on locating, identifying and incorporating desirable germplasm into advanced fresh market breeding lines for release; conducting inheritance studies on disease resistance and fruit disorders; breeding for heat-tolerance and fruit setting; determining flavor chemistry and developing shipping varieties with improved flavor.
Service (10%) - Cooperation with extension personnel on field days and grower oriented meetings, assist in diagnosis of tomato problems from grower fields.
Professional Experience:
Professor of Horticultural Science, Univ. of Florida, 1992 - present
Professor of Vegetable Crops, Univ. of Florida, 1991-1992
Associate Professor of Vegetable Crops, Univ. of Florida, 1986-1991
Assistant Professor of Vegetable Crops, Univ. of Florida, 1981-1986
Assistant Professor of Horticulture, The Ohio State Univ., 1978-1981
Recent Research Emphasis:
Development of tomato varieties with high lycopene, superior color and flavor. Identifying components of tomato flavor and determining chemistry of same.
Developing advanced breeding lines with resistance to the geminiviruses: tomato mottle virus and tomato yellow leaf curl virus. This includes the identification and use of molecular markers linked to resistance genes derived primarily from Lycopersicon chilense Dunal.
Developing varieties resistant to the four races of the bacterial spot pathogen (Xanthomonas campestris pv. vesicatoria) which infect tomato.
Accomplishments:
Students Advised
Ph.D.-4 (+1 current)
MS-2 (+1 current)
Variety Releases (name-year): for more information see Released Germplasm
Finished:
Suncoast - 1983
Horizon-1983
Floragold Basket - 1988
Solar Set - 1989
Micro-Tom - 1989
Equinox - 1995
Neptune - 1995
Micro-Gold - 1995
Micro-Tina - 1999
Micro-Gemma - 1999
Solar Fire - 2003
Fla. 7514 - 2003
Fla. 7964 - 2003
Breeding line:
Fla. 7547 - 1995
Fla. 7481 - 1995
Fla. 7771 - 1999
Fla. 7775 - 1999
Fla. 7781 - 1999
Fla. 7804 - 2002
Fla. 7692B - 2002
Fla. 7946 - 2002
Fla. 7770 - 2003
Fla. 7776 - 2003
Fla. 7613 - 2003
Fla. 8042 - 2003
Fla. 7777 - 2003
Extramural Support Summary (2004):
Florida Tomato Committee (industry) Grants - 4 grants =$117,300
USDA T-Star Grant 2002-2005 = $105,000
SHARE (seed company/tomato processing co.) = $40,000
Royalties on tomato varieties = $39,000
Selected Publications:
Book Chapters
Scott, J. W., M. R. Stevens, J. H. M. Barten, C. R. Thome, J. E. Polston, D. J. Schuster, and C. A. Serra. 1996. Introgression of resistance to whitefly-transmitted geminiviruses from Lycopersicon chilense to tomato. In: Bemisia 1995; taxonomy, biology, damage control, and management. D. Gerling and R. T. Mayer, eds. Intercept Press, Andover, UK. 357-367.
Scott, J. W. 1997. Tomato improvement for bacterial disease resistance for the tropics: A contemporary basis and future prospects. In: Proc. First International Conference on Processing Tomato/First International Symposium on Tropical Tomato Diseases, Recife, Brazil, ASHS Press, Alexandria, VA USA. 117-123.
Scott, J. W. and F. F. Angell. 1998. Tomato. In: Hybrid cultivar development. S. S. Banga and S. K. Banga eds. Narosa Publishing House, New Delhi, India. 451-475.
Scott, J.W. Vegetable varieties from North America. Tomato Editor: Wehner, Todd. Alexandria, VA, USA. ASHS Press, 2002. http://cuke.hort.ncsu.edu/cucurbit/wehner/vegcult/vgclintro.html
Scott, J. W. and R. G. Gardner. 2006. Breeding for resistance to fungal pathogens. In: Genetic Improvement of Solanaceous Crops Vol. 2: Tomato. M. K. Razdan and Antur K. Mattoo eds. Science Publishers, Enfield, NH, USA. (in press)
Scott, J. W. 2006. Breeding for resistance to viral pathogens. In: Genetic Improvement of Solanaceous Crops Vol. 2: Tomato. M. K. Razdan and Antur K. Mattoo eds. Science Publishers, Enfield, USA. (in press)
Refereed
Barten, J. H. M., J. W. Scott, and R. G. Gardner. 1994. Characterization of blossom-end morphology genes in tomato and their usefulness in breeding for smooth blossom-end scars. J. Amer. Soc. Hort. Sci. 119(4):798-803.
Wang, J. F., J. B. Jones, J. W. Scott, and R. E. Stall. 1994. Several genes in Lycopersicon esculentum control hypersensitivity to Xanthomonas campestris pv. vesicatoria. Phytopathology 84:702-706.
Malundo, T. M. M., R. L. Shewfelt, and J. W. Scott. 1995. Flavor quality of fresh tomato (Lycopersicon esculentum Mill.) as affected by sugar and acid levels. Postharvest Biology and Technology 6:103-110.
Scott, J. W. and J. P. Jones. 1995. Fla. 7547 and Fla. 7481 tomato breeding lines resistant to Fusarium oxysporum f.sp. lycopersici races 1, 2, and 3. HortScience 30(3):645-646.
Scott, J. W., S. A. Miller, R. E. Stall, J. B. Jones, G. C. Somodi, V. Barbosa, D. L. Francis, and F. Sahin. 1997. Resistance to race T2 of the bacterial spot pathogen in tomato. HortScience 32(4):724-727.
Baldwin, E. A., J. W. Scott, M. A. Einstein, T. M. M. Malundo, B. T. Carr, R. L. Shewfelt, and K. S. Tandon. 1998. Relationship between sensory and instrumental analysis for tomato flavor. J. Amer. Soc. Hort. Sci. 123(5):906-915.
Emmons, C. L. Whaley and J. W. Scott. 1998. Ultrastructural and anatomical factors associated with resistance to cuticle cracking in tomato (Lycopersicon esculentum Mill.) Int. J. Plant Sci. 159(1):14-22
Scott, J. W., B. K. Harbaugh, and E. A. Baldwin. 2000. ‘Micro-Tina’ and ‘Micro-Gemma’ miniature dwarf tomatoes. HortScience 35(4):774-775.
Scott, J. W. 2000. Fla. 7771, a medium-large, heat-tolerant, jointless-pedicel tomato. HortScience 35(5):968-969.
Scott, J. W. and John Paul Jones. 2000. Fla. 7775 and Fla. 7781: tomato breeding lines resistant to Fusarium crown and root rot. HortScience 35(6):1183-1184.
Baldwin, E. A., J. W. Scott, C. K. Shewmaker, and W. Schuch. 2000. Flavor trivia and tomato aroma: biochemistry and possible mechanism for control of important aroma components HortScience 35(6):1013-1022.
Griffiths, P. D. and J. W. Scott. 2001. Inheritance and linkage of tomato mottle virus resistance genes derived from Lycopersicon chilense accession LA 1932. J. Amer. Soc. Hort. Sci. 126(4)462-467.
Scott, J. W., J. B. Jones, and G. C. Somodi. 2001. Inheritance of resistance in tomato to race T3 of the bacterial spot pathogen. J. Amer. Soc. Hort. Sci. 126(4):436-441.
Canady, M. A., M. R. Stevens, M. S. Barineau, and J. W. Scott. 2001. Tomato spotted wilt virus (TSWV) resistance in tomato derived from Lycopersicon chilense Dun. LA 1938. Euphytica:117:19-25.
Griffiths, P. D. and J. W. Scott. 2001. Inheritance and linkage of tomato mottle virus resistance genes derived from Lycopersicon chilense accession LA 1932. J. Amer. Soc. Hort. Sci. 126(4):462-467.
Harbaugh, Brent K. and John W. Scott. 2001. ‘Florida Silver’ - A semi-dwarf heat-tolerant lisianthus. HortScience 36(5):988-989.
Scott, J. W., J. B. Jones, and G. C. Somodi. 2001. Inheritance of resistance in tomato to race T3 of the bacterial spot pathogen. J. Amer. Soc. Hort. Sci. 126(4):436-441.
Yilmaz, E., K. S. Tandon, J. W. Scott, E. A. Baldwin, and R. L. Shewfelt. 2001. Absence of a clear relationship between lipid pathway enzymes and volatile compounds in fresh tomatoes. Journal of Plant Physiology 158:1111-1116.
Scott, J. W. 2002. A breeder’s perspective on the use of molecular techniques for improving fruit quality. HortScience. 37: 464-467.
Muigai, S. G., D. J. Schuster, J.C. Snyder, J. W. Scott, M. J. Bassett, and H. J. McAuslane. 2002. Mechanisms of resistance in Lycopersicon germplasm to the whitefly Bemisia argentifolii. Phytoparasitica. 30(4):347-360.
Muigai, S.G., Schuster, D.J., Snyder, J.C., Scott, J.W., Bassett, M.J., and H.J. McAuslane. 2002. Mechanisms of resistance in Lycopersicon germplasm to the whitefly Bemisia argentifolii. Phytoparasitica. 30(4):347-360.
Scott, J.W. 2002. A breeder’s perspective on the use of molecular techniques for improving fruit quality. HortScience. 37: 464-467.
Tandon, K. S., E.A. Baldwin, J. W. Scott, and R. L. Shewfelt. 2003. Linking sensory descriptors to volatile and nonvolatile components of fresh tomato flavor. Journal of Food Science 68(7):2366-2371.
Scott, J. W., D. M. Francis, S. A. Miller, G. C. Somodi, and J. B. Jones. 2003. Tomato bacterial spot resistance derived from PI 114490; inheritance to race T2 and relationship across three pathogen races. J. Amer. Soc. Hort. Sci. 128(5):698-703.
Muigai, S.G., M.J. Bassett, D.J. Schuster and J.W. Scott. 2003. Greenhouse and field screening of wild Lycopersicon germplasm for resistance to the whitefly Bemisia argentifolii. Phytoparasitica 31(1):27-38.
Scott, J.W., Francis, D.M., Miller, S.A., Somodi, G.C., and J.B. Jones. 2003. Tomato bacterial spot resistance derived from PI 114490; inheritance to race T2 and relationship across three pathogen races. J. Amer. Soc. Hort. Sci. 128(5):698-703.
Tandon, K.S., Baldwin, E.A., Scott, J.W., and R. L. Shewfelt. 2003. Linking sensory descriptors to volatile and nonvolatile components of fresh tomato flavor. Journal of Food Science 68(7):2366-2371.
Scott, J. W., H. A. Agrama, and J. P. Jones. 2004. RFLP-based analysis of recombination among resistance genes to fusarium wilt races 1, 2 and 3 in tomato. J. Amer. Soc. Hort. Sci. 129(3):394-400.
Scott, J. W. 2003. Fla. 7946 tomato breeding line resistant to Fusarium oxyporum f. sp. lycopersici races 1, 2 and 3. HortScience 39(2):440-441.
Georgelis, N., J. W. Scott, and E. A. Baldwin. 2004. Relationship of tomato fruit sugar concentration with physical and chemical traits and linkage of RAPD markers. J. Amer. Soc. Hort. Sci. 129(6):839-845.
Scott, J.W., Agrama, H.A., and J.P. Jones. 2004. RFLP-based analysis of recombination among resistance genes to fusarium wilt races 1, 2 and 3 in tomato. J. Amer. Soc. Hort. Sci. 129 (3): 394-400.
Scott, J. W. 2004. Fla. 7946 tomato breeding line resistant to Fusarium oxysporum f.sp. lycopersici races 1,2, and 3. HortScience 39(2):440-441.
Georgelis, N., J. W. Scott, and E. A. Baldwin. 2005. Inheritance of high sugars from tomato accession PI270248 and environmental variation between seasons. Relationship of tomato fruit sugar concentration with physical and chemical traits and linkage of RAPD markers. J. Amer. Soc. Hort. Sci. (accepted)
Scott, J. W., S. M. Olson, H. H. Bryan, J. A. Bartz, D. N. Maynard, and P. S. Stofella. 2005. 'Solar Fire' hybrid tomato: FLA. 7776 tomato breeding line. HortScience 41(accepted).
Scott, J. W. 2005. Perspectives on tomato disease resistance breeding; past, present, and future. In: Proceeding of the First International Symposium on Tomato Diseases, Orlando, Florida, USA. Acta Hor. (in press)
Scott, J. W., J. F. Wang, and P. M. Hanson. 2005 Breeding tomatoes for resistance to bacterial wilt, a global view. In: Proceeding of the First International Symposium on Tomato Diseases, Orlando, Florida, USA. Acta Hor. (in press)
Momotaz, A., J. W. Scott, and D. J. Schuster. 2005. Searching for silverleaf whitefly and geminivirus resistance genes from Lycopersicon hirsutum accession LA 1777. In: Proceeding of the First International Symposium on Tomato Diseases, Orlando, Florida, USA. Acta Hor. (in press)
Ji, Y., and J. W. Scott. 2005. Finding RAPD markers to derived gemini virus resistance genes on chromosome 6 of tomato. In: Proceeding of the First International Symposium on Tomato Diseases, Orlando, Florida, USA. Acta Hor. (in press)
Non-Refereed
Scott, J. W., H. H. Bryan, and L. J. Ramos. 1997. High temperature fruit setting ability of large-fruited, jointless pedicel tomato hybrids with various combinations of heat-tolerance. Proc. Fla. State Hort. Soc. 110:281-284.
Scott, J. W. 2002. A new allele at the potato leaf locus derived from L. chilense accession LA 1932 is discovered in a geminivirus resistance project. Tomato Genetics Cooperative Rpt. 52:31-33.
Scott, J. W., J. B. Jones, and G. C. Somodi. 2003. Development of a large fruited tomato with a high level of resistance to bacterial wilt (Ralstonia solanacearum). Tomato Genetics Cooperative Rpt. 53:36-37.
Scott, J. W. 2004. Observations indicate epitasis of nipple tip gene n-2 over n-4. Tomato Genetics Cooperative Rpt. 54:41-42.
Scott, J. W., S. M. Olson, J. B. Jones, P. S. Stofella, and G. C. Somodi. 2004. Fla. 7514 hybrid tomato tolerant to bacterial wilt. Tomato Genetics Cooperative Rpt. 54:50.
Scott, J. W., S. M. Olson, J. A. Bartz, D. N. Maynard, and P. S. Stofella. 2004. Fla. 7964 hybrid tomato resistant to spotted wilt virus. Tomato Genetics Cooperative Rpt. 54:51.
Professional Memberships and Honors
American Society for Horticultural Science
American Society for Horticultural Science - Southern Region
Florida State Horticultural Society
Tomato Genetics Cooperative - Managing Editor
Gamma Sigma Delta
Florida State Horticultural Society Council Memorial Tomato Research Award - 1988, 1991, & 1994
Florida State Horticultural Society Outstanding Paper - Vegetable Section - 1989, 1994, & 1998
Florida Fruit and Vegetable Association Research Award - 1991
Gamma Sigma Delta International Faculty Award of Merit - 1996
University of Florida Professional Excellence Program (PEP) Award - 1998
University of Florida, IFAS Interdisciplinary Research and Extension Team Award - 2001
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