Figure 4.

Minimum spanning network of Clade 3 based on CR1 sequences. Each dot represents a substitution; size of the circles corresponds to the number of individuals that share this haplotype. All specimens that did not have a surface phenotype are indicated.

Kruckenhauser et al. BMC Evolutionary Biology 2011 11:172   doi:10.1186/1471-2148-11-172
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