The objective of this study was to clarify the effects of calcium treatments on the anthocyanin accumulation of ‘Manicure Finger’ grape berries. Calcium treatments increased the calcium contents and enhanced the calmodulin activities in grapevine leaves and berries, upregulated the expression of the sugar transporter genes SUC12 and SUC27 in leaves, promoted the transport of photosynthetic products to berries, and increased the expression of anthocyanin biosynthesis-related genes in the grape berry skin. These results indicate that the applic...
