The flow chart for identifying 12 prevailing tea cultivars in Taiwan. The yellow circle frames represent marker codes, and the blue square frames represent cultivar codes. Cultivar and marker codes are shown in Tables 1 and 2. By using five core markers, 12 prevailing cultivars could be identified. M02 can be used to discriminate cultivars attributed to sinensis or assamica group. G03 and C02 are employed to identify four cultivars within the assamica group. Cultivars of the sinensis group can be distinguished by G03, G01 and G04.