Fig. 2

K-means clustering for DEGs in the P libraries or F libraries and GO functional enrichment analyses within clusters of two libraries. a K-means clustering for DEGs in the P libraries; b K-means clustering for DEGs in the F libraries; c Significant GO terms of DEGs in the P libraries associated with feather growth within 8 clusters; d Significant GO terms of DEGs in the F libraries associated with feather growth within 8 clusters. In the C and D, the x-axis is the type of cluster, y-axis is GO term associated with the feather development, the numbers in the rectangle indicates the number of DEGs participated in the GO term, diamond indicates enriched categories according to Fisher’s test (p-value ≤0.05)