Figure 2

Summary of transcripts that display development or tissue specific detection. A) For each tissue and/or developmental stage (seed, leaf root and flower) the number of probesets expressed exclusively in one or more of the developmental stages for that tissue is shown e.g. present at one or more stage of inflorescence. The numbers in brackets indicates the number of probesets with known TIGR6 identifiers for rice or known TAIR9 AGIs for Arabidopsis. B) For each of the tissues, the probesets with annotated TIGR identifiers or AGIs for rice and Arabidopsis respectively, were analysed for orthologues that displayed the same type of restricted expression profile. Orthologues were determined based on the Inparanoid database v7.0 [30]. Overlap in the Venn diagram indicates the number of genes that were orthologous and tissue specific in both species e.g. 5 orthologous, flower specific genes. The number in the darker shades represent the number of orthologues that exist, but are not tissue specific in the respective other species. Lastly, the number in the lightest shade represents the number of genes that have no orthologues, with the number of lineage specific genes shown in the black circle (lineage specific was defined in [32]). C) The AGI, TIGR identifiers and description of each gene in the overlapping sets are also shown. D) PageMan analysis of the genes showing tissue specific expression. For each set of genes that showed tissue specific expression (e.g. all 231 leaf specific genes for rice), statistical analysis of over-represented functional categories was carried out using the Fisher method. Functional categories that did not show significant changes were collapsed for display. Statistical significances are represented by a false colour heat map (up, red; down, blue) where a z-score of 1.96 represents a p-value of 0.05.