Gene map of the Vitis vinifera chloroplast genome. The thick lines indicate the extent of the inverted repeats (IRa and IRb), which separate the genome into small (SSC) and large (LSC) single copy regions. Genes on the outside of the map are transcribed in the clockwise direction and genes on the inside of the map are transcribed in the counterclockwise direction. Numbers on the outside of map indicate location of repeats in Table 1. Repeats indicated by * (palindrome) and ** (tandem) are only shown once since they occur in the same location.