Fig. 4
From: Gene expression in the brain of a migratory songbird during breeding and migration
Number of significantly regulated genes (out of 22109 examined) in whole brain RNA extracts between adult breeding and juvenile migrating willow warblers of the subspecies P. trochilus trochilus and P. t. acredula. Numbers inside circles show the number of birds from each subspecies and season. The outer lines with associated numbers show the comparisons made between samples and the number of differentially expressed genes (adjusted p value < 0.05), the middle bands represent combined sample comparisons