Fig. 1

Map showing approximate sample collection sites. Numbers next to sites are equivalent to numbers in Table 1. Symbols for subspecies are identical to group symbols in Table 1. The lower right corner of the map is the geographic distribution of samples from New Zealand. Dotted elliptical circles represent three main subclades of C. elaphus and C. canadensis in China. The map was taken from maps package in R 3.2.0 software, we acknowledge its offer