Fig. 4.

Correlations of metabolites with taste attributes based on WGCNA and PLSR. A: Clustering dendrogram of the average network adjacency for the identification of metabolite co-expression modules; B: Module-trait relationship correlation heatmap between modules and flavor attributes; C: Correlation loadings of metabolites achieved from the key modules. Note: 1: Green grass; 2: Fresh; 3: Sweetness; 4: Sweet; 5: Woody; 6: Astringency; 7: Sourness; 8: Fruit wine; 9: Ferment and bouquet; 10: Apple-like; 11: Floral. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)