Genetic structure
Analysis of molecular variance (AMOVA) revealed a high differentiation
level of both cpDNA (F st=0.69325) and ITS
(F st=0.78692) in C. serrulata (Table 2).
It was estimated that 69.32% of the whole variations of cpDNA sequences
and 78.69% of the whole variations of ITS sequences existed among
populations, signifying a phylogeographic structure in C.
serrulata (N ST=0.388 >G ST=0.328, P < 0.05) (Table 3).
But in detail, groups in northwest (NW)
(N ST=0.305 <G ST=0.461, P > 0.05) and
northeast (NE) (N ST=0.496 >G ST=0.473, P < 0.05) showed no
or weak phylogeographic structure.