Iron homeostasis in Arabidopsis thaliana: transcriptomic analyses reveal novel FIT-regulated genes, iron deficiency marker genes and functional gene networks

Table 1 Expression patterns of the robustly FIT-regulated genes in six-day-old seedlings and six-week-old roots

The genes were identified by expression pattern analysis. The selection criteria for FIT-induced genes were: induced under -Fe in WT, repressed in fit vs. WT at -Fe, induced in HA-FIT under -Fe and not induced in fit vs. WT at +Fe (Fig. 3). Those for FIT-repressed genes were: repressed under -Fe in WT, induced in fit vs. WT at -Fe, repressed in HA-FIT under -Fe and not repressed in fit vs. WT at +Fe (Fig. 4). These criteria had to be met in roots and seedlings. The given values are log₂(fold change). Up-regulation is indicated by red background, down-regulation is indicated by green background and insignificant or below threshold regulation is indicated by black background. AGI codes of genes that have been previously associated with FIT [11] and the FIT-regulated gene FRO2 [11, 12] are written normal, the AGI codes of the novel robustly FIT-induced genes are written in bold and underlined. For more information on the genes see Table 2

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