Fig. 1

a Population structuring of Common and Green Pheasants inferred from STRUCTURE that used admixture model with correlated allele frequencies when K = 1–7. Each line represents an individual and the length of each color represents the possibility of the individual assigned into a given genetic cluster. The abbreviation stands for subspecies of Common Pheasant (VLA: vlangalii, SAT: satscheuensis, STR: strauchi, ELE: elegans, DEC: decollatus, TOR: torquatus, KIA: kiangsuensis, KAR: karpowi, PAL: pallasi, PV: Green Pheasant). b Although the means of the posterior probability Ln P (D) (±SD) increased per K, c two genetic clusters were suggested by the maximum value of ΔK and the order rate of change in posterior likelihood Ln P (X/K) per K