Number of differentially expressed transcripts in Btk defective flies:

<p>A differential fold-change cut-off of the Signal Log Ratio (SLR) >1,2 (difference of means between <i>Btk29A</i>^ficP and revertant (<i>Btk29A</i>^{(fic Exc1–16)}) was applied to define genes whose expression was significantly different from that of the revertant and <i>Btk29A</i>^ficP. Bar-graph showing the number of up- and down-regulated transcripts, respectively, in adult head and larval CNS after the pair-wise comparison of revertant (<i>Btk29A</i>^{(fic Exc1–16)}) and <i>Btk29A</i>^ficP data.