Differentially expressed genes with very high expression in April compared to all other collection points.

<p>Error bars represent standard error of the mean. Transcript levels for all genes shown have an FDR<0.05. The letters above each bar represent post hoc pair-wise comparisons to determine significance between collection points. Any collection point not connected by the same letter is significantly different (FDR<0.05). Abbreviations: ALDH1A1 aldehyde dehydrogenase 1 family member A1; ASS1, argininosuccinate synthase 1; <i>CCDC80</i>, coiled-coil domain-containing protein 80; <i>GSTM5</i> glutathione S-transferase mu 5; IGFBP5, insulin-like growth factor binding protein 5; NNAT, neuronatin.