Fig. 2From: Metabolite profiling during graft union formation reveals the reprogramming of primary metabolism and the induction of stilbene synthesis at the graft interface in grapevineHeatmap of the mean concentration of flavanols in the scion, rootstock and graft interface tissues of Vitis vinifera cv. Cabernet Sauvignon homo-grafts (CS/CS) and CS grafted with the rootstocks V. riparia cv. Gloire de Montpellier (CS/RG) and the V. berlandieri x V. rupestris hybrid cv. 1103 Paulsen (CS/1103P) 28 d after grafting. Stars indicate the significant differences between the graft interface and scion and/or rootstock tissues of CS/CS (at the 5% level with either a one way ANOVA or Kruskal-Wallis test, Additional file 4: Table S4). The letters in the graft interface and rootstock data indicate the Tukey results of one way ANOVA or Kruskal-Wallis tests of flavanol concentration in the interface and rootstock (tested separately, Additional file 5: Table S5 and Additional file 6: Table S6 respectively)Back to article page