Jim Giovannoni
Scientist
Office/Lab: Room 429/426
Contact: jjg33@cornell.edu / 607-255-1414
Affiliations:
Plant Molecular Biologist at the USDA-ARS Plant, Soil and Nutrition Laboratory
Adjunct Professor in Cornell University’s Department of Horticulture
and Department of Plant Breeding and Genetics
Adjunct Assistant Professor in Department of Plant Biology
Graduate Field: Horticulture, Plant Biology
Research Summary
The focus of research in the Giovannoni laboratory is molecular and genetic analysis of fruit ripening and related signal transduction systems with emphasis on the relationship of fruit ripening to nutritional quality. We are also involved in development of tools for genomics of the Solanaceae including participation in the International Tomato Sequencing Project. We employ several experimental systems but the majority of our work involves the use of tomato. The broad objectives of the lab include deciphering the underlying molecular basis of components of ripening regulation conserved through evolution and how these regulatory networks coordinate ripening events including those related to quality and nutritional content.
Experimental approaches include: 1) positional cloning of loci known via mutation to harbor genes necessary for normal fruit development and ripening, and 2) isolation of candidate ripening regulatory genes based on expression pattern or relationship to ripening-related signal transduction systems (e.g. ethylene, light), and functional analysis in transgenic plants.
Publications
Barry, C. S., J. J. Giovannoni. 2006. Ripening in the Tomato Green-ripe Mutant is Inhibited by Ectopic Expression of a Protein that Disrupts Ethylene Signaling. Proc Natl Acad USA 103: 7923-7928
Moore, S., P. Payton, M. Wright, S. Tanksley, J. Giovannoni. 2005. Utilization of Tomato Microarrays for Comparative Gene Expression Analysis in the Solanaceae. Journal of Experimental Botany 56: 2885-2895
Li, C., A. L. Schilmiller, G. Liu, G. I. Lee, S. Jayanty, C. Sageman, J. Vrebalov, J. J. Giovannoni, K. Yagi, Y. Kobayashi, G. A. Howe. 2005. Role of Beta-Oxidation in Jasmonate Biosynthesis and Systemic Wound Signaling in Tomato. Plant Cell 17: 971-986
Giovannoni, J. J., S. El-Rakshy. 2005. Genetic Regulation of Tomato Fruit Ripening and Development and Implementation of Associated Genomics Tools. Acta Horticulturae 682: 63-72
Barry, C., R. P. McQuinn, A. J. Thompson, G. B. Seymour, D. Grierson, J. J. Giovannoni. 2005. Ethylene Insensitivity Conferred by the Green-ripe (Gr) and Never-ripe 2 (Nr-2) Ripening Mutants of Tomato. Plant Physiology 138: 267-275
Liu, Y., S. Roof, Z. Ye, C. Barry, A. van Tuinen, J. Vrebalov, C. Bowler, J. Giovannoni. 2004. Manipulation of Light Signal Transduction as a Means of Modifying Fruit Nutritional Quality in Tomato. Proceedings of the National Academy of Sciences, USA 101: 9897-9902
Giovannoni, J., . 2004. Genetic Regulation of Fruit Development and Ripening. The Plant Cell 16: S170 -180
Basset, G. J. C., E. P. Quinlivan, S. Ravanel, F. Rébeillé, B. P. Nichols, K. Shinozaki, M. Seki, L. C. Adams-Phillips, J. J. Giovannoni, J. F. Gregory III, A. D. Hanson. 2004. Folate synthesis in plants: The p-aminobenzoate branch is initiated by a bifunctional PabA-PabB protein that is targeted to plastids. Proceedings of the National Academy of Sciences, USA 101: 1496-1501
Adams-Phillips, L., C. Barry, P. Kannan, J. Leclercq, M. Bouzayen, J. Giovannoni. 2004. Evidence that CTR1-mediated Ethylene Signal Transduction in Tomato is Encoded by a Multigene Family Whose Members Display Distinct Regulatory Features. Plant Molecular Biology 54: 387-404
Adams-Phillips, L., C. Barry, J. Giovannoni. 2004. Signal transduction systems regulating fruit ripening. Trends in Plant Science 9: 331-338
Vrebalov, J., D. Ruezinsky, V. Padmanabhan, R. White, D. Medrano, R. Drake, W. Schuch, J. Giovannoni. 2002. A MADS-box gene necessary for fruit ripening at the tomato ripening-inhibitor (rin) locus. Science 296: 343-346
Wilkinson, J., M. Lanahan, H. Yen, J. Giovannoni, H. Klee. 1995. An Ethylene-inducible Component of Signal Transduction Encoded by Never-ripe. Science 270: 1807-1809
Lab Members
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