Figure 1. Distribution of 36 R. aureum populationssampled from China. We extracted the elevational information from DIVA-GIS Free Spatial Data (http://www.diva-gis.org/Data) and created the map by the program Global Mapper version 13.00 (http://www.bluemarblegeo.com/products/global-mapper.php) and DIVA-GIS version 7.5.0.