Comparative analysis between plant species of transcriptional and metabolic responses to XXXX .

@entity958 @entity4588 @entity26 @entity519 @entity579 @entity493
The variation in tolerance to low oxyg @entity26 likely explained by divergent sets of molecular and metabolic responses between species.     We analysed the versatility of the response to low oxyg @entity26 primary metabolism by comparing nine previously published metabolome profiling studies. Data were juxtaposed with expression profiles of genes encoding enzymes involved in the metabolic pathways of rice @entity579 ab @entity958 poplar. Furthermore, full transcript profiles were compared to determine commonalities in the expression of orthologous genes and genes that serve similar functions.     Activation of fermentation and the accumulation of alan @entity493 s succ @entity4588 e observed in all species, but transcriptional regulation of these metabolic pathways varied. Global analysis of orthologue expression revealed that most differentially expressed genes either had no orthologues or were not affected in the other species. Expression analysis of nearly all gene clusters with common functions varied significantly between species.     The resemblance of the metabolic response to hypo @entity519 icates that this occurs independent of the level of tolerance. However, regulation of these processes at transcriptional level varied between species. An important role is suggested for signalling and post-transcriptional regulation to be involved in the mechanisms that lead to tolerance to hypo @entity519
