Figure 6.

Phylogenetic hypotheses for speciation within Nosema/Vairimorpha. Hypotheses were generated according to maximum criteria, using the following topological constraints: A. co-speciation: parasites of insects are constrained to be monophyletic, B. ancient asexuality: asexual species are constrained to be monophyletic, C. rRNA gene order: species with the 5'-18S, 16S, 5S-3' gene order are constrained to be monophyletic.

Ironside BMC Evolutionary Biology 2007 7:48   doi:10.1186/1471-2148-7-48
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