KEGG pathways enriched in the DE lncRNAs between the breeds. The KEGG pathways enriched in the DE lncRNAs between YLD vs. YSC (A), HLD vs. HSC (B), and LLD vs. LSC (C). (D) The neuroactive ligand–receptor interaction pathway and calcium signaling pathway overlapped in the three groups. Target genes belonging to the HTR family in each group are listed separately. HTR1B, HTR2B, HTR1F, and HTR7 were differentially expressed in at least one group (blue module), and HTR2C, HTR1D, and HTR3A were not differentially expressed in each group (yellow module). The DE lncRNAs are represented by pink ellipses.