Figure 3.
Date of divergence of the CTG codon reassignment using SSU rRNA sequences. (A) Nonlinearized tree; (B) linearized tree. The tree was constructed using the NJ method and the Kimura 2-parameter distance model (Kimura 1980). A γ shape parameter of 0.146 was used. The standard error of the key divergence time is indicated. Lower numerals represent the confidence level from 100 replicate bootstrap samples. Aspergillus nidulans was used as an out-group. The scale represents the average number of substitutions per site.
