Fig 1.
Geographical distribution of Ephedra przewalskii in China, population numbers and haplotypes of E. przewalskii correspond to those in S1 Table and S2 Table respectively, pie-charts represent haplotype frequency.
Xinjiang Province includes Urumqi, Tarim basin, Junggar basin, and Hami basin (i.e. populations 1–30).
Fig 2.
Statistical parsimony network of Ephedra przewalskii cpDNA haplotypes.
The unfilled circles indicate the missing or inferred haplotypes; the circle size is proportional to haplotype frequencies; haplotypes in the network showed in the same colours correspond to those in the geographical distribution, Fig 1.
Table 1.
Results of spatial analysis of molecular variance corresponding to K = 11.
Table 2.
Results of analysis of molecular variance for Ephedra przewalskii based on chloroplast DNA sequence data.
Table 3.
Results of neutrality tests and mismatch distribution analysis for Ephedra przewalskii.
Fig 3.
Phylogenetic relationships of 16 haplotypes of Ephedra przewalskii and related species.
Numbers above branches are support values (support values > 0.50).
Fig 4.
Maps depicting potential distribution as occurrence probability of Ephedra przewalskii in the northwestern China during (a) present-day and (b) LGM based on the CCSM models as derived from the ecological niche models (ENMs) in MAXENT.