Fig. 2.

Gene Ontology (GO) enrichment based on the target genes of differentially expressed lncRNAs (DElncRNAs) between Tibetan chickens and Daheng broilers. a The top 20 GO enrichment annotated by down-regulated target genes in heart embryonic tissue of Tibetan chickens. b The top 4 GO enrichment annotated by up-regulated target genes in Tibetan chickens. The left side represents the GO term, the right represents enrichment, and the size of the solid circle indicates the number of genes. The change of bubbles from green to red means that the degree of gene function is increased, and the large bubbles indicate that the number of genes is enriched