2.4 Clonal diversity analysis
Clone diversity was estimated using the total genet number (G ),
average clone size (N /G ), Simpson index (D ), and
Fager index (E ). The calculation formulas of the Simpson and
Fager indices were: D =
1-∑{[N i(N i-1)]
/[N (N -1)]}; E = (D-D min) / (D max -D min); D min= (G -1)
(2N -G ) /N (N -1);D max = (G -1) N /G (N-1). Where, N = ΣN i was the total number
of sampled individuals (ramets), G was the total number of
genotypes (genets), and N i was the number of
individuals (ramets) with the i genotype.