The Phylogeographical Pattern and Conservation of the Chinese Cobra (Naja atra) across Its Range Based on Mitochondrial Control Region Sequences
Figure 2
Network of 52 mitochondrial control region haplotypes from 390 individuals of Naja atra.
The size of the circles is proportional to haplotype frequency; small open circles represent unsampled haplotypes. See Table 1 for sample site abbreviations.