Fig. 4.
Summary of evolutionary losses and gains of tRNAs with CAG anticodons. Colored branches on the tree indicate presence of tRNALeu (blue), tRNAAla (orange), and tRNASer (pink) molecules, with shades of blue indicating different tRNALeu orthogroups (designated P, Z, L, Q, R, and T; Supplementary Fig. 9; Supplementary Note 3). Plus and minus symbols indicate inferred gains and losses of tRNA types. For each branch, only some representative genera or species are named. Asterisks indicate taxa with large introns in tLCAG-Z. Species with no tRNACAG gene (thin lines) translate CUG as Leu by wobble using tRNALeu(UAG)