Figure 2

Diagrams denoting population structure.
(a). Unrooted NJ tree of the 128 STs based on the concatenated sequences of 7 loci and the three lineages (L1 to L3) were separated with 100% bootstrap value support. (b). Proportions of ancestral subpopulations of the 128 STs and different colors represented distinct assuming subpopulations corresponding to lineage L1 to L3. (c). Splites network of the 128 STs generated by neighbor-net method using SplitsTree4 based on the concatenated sequences of 7 loci. The three subgroups corresponding to lineage L1 to L3 could be discriminated.