Figure 1.

Sampling sites of the Chinese wood frog (Rana chensinensis). Sampling site names are listed in Table 1. Sites 1–5 are located at the northern side of the Tsinling; sites 6–9 are located at the southern side of the Tsingling, which is also the northern side of the Daba; sites 10–12 are located at the southern side of the Daba. Sites 11 and 12 are located at the periphery of the species' distribution. Insert: outline of China; the blue block indicates the relative location of the studying area and the dashed line indicates the species' distribution.

Zhan et al. BMC Genetics 2009 10:17   doi:10.1186/1471-2156-10-17
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