Fig. 1

The plots showed hypothalamic DEGs of Ross308 identified in the present analysis. The volcano plots showing the number of significant (red dots) and not-significant (black dots) (a) for 3-week-old-chickens and (c) 6-week old chickens. The heatmap Principal Component Analysis (PCA) showing sample clustering based on normalised reads for Ross308 broiler chickens characterised high (HGR) and low growth rate (LGR) (b) for 3-week old chickens and (d) for 6-week-old chickens. On heatmap were indicated seven samples per age groups, because two of them were pinpointed during clustering analysis that are distinct from particular groups, similarly as 6LGR sample that was also removed from further processing. Venn diagram presented DEGs (e) identified for 3-week-old, and 6-week-old chickens and 43 shared DEGs