Overall, the differentiation between the indica groups
and japonica groups was high, with FST values of 0.58
and 0.50 for all 80 varieties and 34 Taiwan varieties, respectively (Table 4). Genetic differentiation was moderate
between Taiwan domestic varieties and introduced varieties for both indica and japonica groups, with FST values
of 0.25 and 0.15, respectively. However, Taiwan and Japanese japonica varieties showed very low genetic differentiation (FST =0.05, Table 4).