Maximum credibility phylogenies of
based on mitochondrial (A) 16S and (B) COI data. Bayesian posterior probabilities are given above the nodes (values below 0.50 not indicated). Three-letter morph codes are indicated for Melanoides tuberculata; other species names abbreviated. Gradient rectangles indicate the invasions here discussed (TI, M-C Inv. = Tanganyika and Malawi-Congo invasion, respectively). Both gene trees have branching patterns that are highly similar to those inferred from the concatenated dataset (Figure 2), and all trees corroborate invasions of Asian Melanoides tuberculata to Africa.