Gene expression analysis of members of Vitis vinifera L. ZIP gene family. Expression profiles of representative members of Vitis vinifera ZIP gene family in R (roots); L (leafs); S (stems); LC (little clusters); F (flowers); PV (pre-veraison fruit); V (whole veraison fruit); M (whole mature fruit). Expression in root samples was adjusted to 1 relative unit. The end of vegetative development and the beginning of reproductive development is divided by a dotted line. The images are representations of each phenological stage. VvZIP3 is underlined. Data represent means ± SD (n = 3).