Figure 4

STRING analysis shows that DEGs are involved in known and predicted protein-protein interactions. STRING analysis of DEGs in the livers of BH and BL pigs. Network nodes represent genes shown in Additional file2: Table S2. Lines of different color represent seven types of evidence used in predicting associations. Red line: fusion evidence; green line: neighborhood evidence; blue line: co-occurrence evidence; purple line: experimental evidence; yellow line: text mining evidence; light blue line: database evidence; black line: co-expression evidence.