Median-joining networks for African elephants cytochrome b mtDNA haplotypes. Circle size is proportional to the haplotype frequency. The numbers on the connecting line determine the number of substitutions estimated by NETWORK V.4. 1. 1. 1. The entire list of haplotypes for cytochrome b MJN can be found in Table 2.
Johnson et al. BMC Evolutionary Biology 2007 7:244 doi:10.1186/1471-2148-7-244