Figure 2.

Reconstruction of the evolution of tooth shape within the Eretmodini based on one of the 12 most parsimonious trees by using the combined mtDNA data set and no weight. Tracing tooth shape on different MP trees does not alter the reconstruction shown here because the 12 most parsimonious trees only differ in the relative position of the four basal taxa from lineage A [Ec.cf.A (18, 23, 30, and 52)] and in the relative position of Ec (34, 38, and 52#) from lineage C. Tooth shape was treated as an unordered character with three character states. The character reconstruction shown is just one possible reconstruction, because the ancestral state of tooth shape in eretmodine cichlids is tentative. However, alternative reconstructions also yield multiple instances of parallel evolution.