Fig. 2 in Fig. 2 in Positive association between PTN polymorphisms and schizophrenia in Northeast Chinese Han population.

Fig. 2. Biogeographic affinities and distributional areas of Oileus species. a) UPGMA cluster analysis performed with proportion of biogeographic provinces of distribution area for each species, b) Size of potential distribution area; wing morphology is illustrated for each species. O. bifidus (O. bif), O. heros (O. her), O. nonstriatus (O. non), O. rimator (O. rim), O. sargi (O. sar). Blue lines indicate species restricted to the west of the Tehuantepec Isthmus. Red lines indicates species restricted to the east of the Tehuantepec Isthmus. Black lines indicate species distributed on both sides of the Tehuantepec Isthmus.