Genetic divergence
Nei’s genetic distance (D) was highest (0.112) between
populations B and J, while the lowest was 0.020, occurring
between populations M and N (Table 2). This distance
ranged from 0.020 to 0.066 between the Yunnan populations,
from 0.023 to 0.060 between the Hainan-Laos populations,
and from 0.076 to 0.112 between the populations
of the two different regions.
The coefficient of gene differentiation (Gst) among
populations was estimated as 0.16, indicating that most
of the total genetic diversity occurred within populations
(84.0%). The Shannon’s information index also showed
that the major variation was held within populations
(Hpop/Hsp = 84.0%). These results were further confirmed