Figure 4

Maximum likelihood tree. Maximum likelihood topology based on the K81uf+I+Γ model of molecular evolution [70] with nucleotide frequencies A, 0.3581, C, 0.2676, G, 0.1368, T, 0.2375, proportion of invariable sites (I), 0.2461, gamma shape parameter (α), 0.7306, and R-matrix A↔G, A↔T, C↔G and G↔T, 1.0000; A↔G, 7.7875 and C↔T, 1.2463. The blue box indicates the East African clade of Synodontis.