Figure 2From: Learning-induced gene expression in the heads of two Nasonia species that differ in long-term memory formation The numbers of differentially expressed transcripts that are upregulated (left) or downregulated (right) at the indicated time points after conditioning (i.e. 0, 4 and 24Â h) are shown for N. vitripennis (top) and N. giraulti (bottom). Back to article page