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JXB Advance Access originally published online on October 10, 2005
Journal of Experimental Botany 2005 56(421):2885-2895; doi:10.1093/jxb/eri283
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Published by Oxford University Press [2005] on behalf of the Society for Experimental Biology.

RESEARCH PAPER

Utilization of tomato microarrays for comparative gene expression analysis in the Solanaceae

Shanna Moore1 * {dagger}, Paxton Payton2 * {ddagger}, Mark Wright3, Steven Tanksley3 and James Giovannoni2,4,§

1Department of Plant Biology, Cornell University, Ithaca, NY 14853, USA
2Boyce Thompson Institute for Plant Research, Tower Road, Cornell Campus, Ithaca, NY 14853, USA
3Department of Plant Breeding and Genetics, Cornell University, Ithaca, NY 14853, USA
4USDA Plant, Soil, and Nutrition Laboratory, USDA-ARS, Tower Road, Cornell Campus, Ithaca, NY 14853, USA

§ To whom correspondence should be addressed. Fax: +1 607 254 2958. E-mail: jjg33{at}cornell.edu

Transcriptional profiling allows for the assessment and comparison of cross-species gene activity and function on a comprehensive scale. The Solanaceae is a large, diverse dicot family, with well-established genetic relationships between major crop species (tomato, potato, pepper, eggplant, and tobacco). Although Arabidopsis thaliana is often the model of choice for anchoring comparative studies, certain biological processes are better examined in other plants. The ripening of fleshy fruits is not tractable in Arabidopsis; however, it has received considerable attention in tomato. As a member of the Solanaceae, tomato provides a well-characterized system to anchor transcriptional profiles of fruit ripening and development in related species. By utilizing different stages of tomato, pepper, and eggplant fruit, the use of tomato microarrays for expression analysis has been demonstrated in closely related heterologous species, and groups of candidate expressed sequence tags, which are useful as orthologous markers, have been identified, as well as genes implicated in fruit ripening and development in the Solanaceae.

Key words: Eggplant, fruit ripening microarray, pepper, Solanaceae, tomato


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