Transcriptional profiles of drought-responsive genes in modulating transcription signal transduction, and biochemical pathways in tomato.

ABSTRACT: To unravel the molecular mechanisms of drought responses in tomato, gene expression profiles of two drought-tolerant lines identified from a population of Solanum pennellii introgression lines, and the recurrent parent S. lycopersicum cv. M82, a drought-sensitive cultivar, were investigated under drought stress using tomato microarrays. Around 400 genes identified were responsive to drought stress only in the drought-tolerant lines. These changes in genes expression are most likely caused by the two inserted chromosome segments of S. pennellii, which possibly contain drought-tolerance quantitative trait loci (QTLs). Among these genes are a number of transcription factors and signalling proteins which could be global regulators involved in the tomato responses to drought stress. Genes invol

SUBMITTER: Gong P 

PROVIDER: S-EPMC2921197 | biostudies-literature | 2010 Aug

REPOSITORIES: biostudies-literature