In addition, that study reported coefficients of differentiation between the genotypes from different countries (0.07-0.23) that suggested the presence of considerable variation between countries.
The coefficient of genetic differentiation among populations based on FST equaled 0.20.
The mean coefficient of gene differentiation (Gst) was 0.570, indicating that 43.0% of the genetic diversity resided within the population.
The cluster analysis, genetic structure parameters, moderate coefficient of gene differentiation and low gene flow value all indicated that these growth forms are genetically dissimilar and that geographic separation as well as physiological/flowering barriers has influenced these variations.
Genetic differentiation between landraces and modern varieties on a genome basis was detected with POPGENE software [54] using coefficients gene flow (Nm), genetic distance (GD), genetic identity (GI), Shannon's information index (I) and coefficient of gene differentiation (Fst).
DnaSP [18] was used to estimate population-level parameters and their associated variances, including the coefficient of gene differentiation GST [18], [19], pairwise nucleotide diversity π, haplotype diversity h, and mean number of nucleotide substitutions per site between populations Dxy [20].
The coefficient of genetic differentiation among populations (FST) was estimated to be 0.053 for nSSRs.
Also the coefficient of genetic differentiation and the level of gene flow indicate that geographical distances do not act as barriers for gene flow.
When all 24 populations were considered, the coefficient of genetic differentiation among populations (GST) was 0.20, representing 19.6%% genetic variability among populations and 80.4 % within populations.
> -wrap-foot> The average coefficient of genetic differentiation (Gst) was 0.377, 0.452 and 0.074, respectively, for RAPD, ISSR and AFLP among the two populations of P. pinnata (Table 4).
