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. 2018 May 14;115(22):E5056–E5065. doi: 10.1073/pnas.1716257115

Fig. 1.

Fig. 1.

Sampling sites and population structure of the Tibetan frog (N. parkeri). (A) Sampling locations (ArcGIS 10.2; esri). Site numbers refer to SI Appendix, Table S1. Colors denote the five main groups recovered from population structure and phylogenetic analyses. Gray indicates hybrid populations (25–27). (B) PCA of all high-coverage samples. (C) Principle component plot of E samples only. (D) ML tree based on concatenated sequences. W, green; E1, purple; E2, yellow; E3, light blue; E4, red.