Fig. 7

KEGG pathway and cluster heat map analysis of DAMs in the three comparison groups. A-C represent the comparison groups RP1 vs RP2, RP1 vs RP3 and RP1 vs RP4, respectively. The bubble color indicates the P-value, the darker the bubble color, the smaller the P-value, and the more significant the enrichment degree. The bubble size indicates the influence factor size of the path in topology analysis, the larger the bubble, the greater the influence factor. D-F represent the RP1 and RP2, RP1 and RP3, RP1 and RP4, respectively. The X-axis represents fruit samples and the Y-axis represents DAMs. Red represents up-regulated, blue represents down-regulated, color depth indicates the degree of up and down. The red arrow indicates the same differential metabolite ascorbic acid accumulated in the three comparison groups. The green arrow indicates the same differential metabolite glutamic acid accumulated in the three comparison groups