Figure 3. Phylogenetic relationships among actinopterygians inferred from partitioned Bayesian analysis of 2520 bp of
concatenated nucleotide sequences of four nuclear genes (excluding third codon positions). All teleost concatenated sequences
belong to either paralogue groups ‘a’ (green) or ‘b’ (blue), whereas amiid, lepisosteid and chondrostean sequences fall outside of
the teleost paralogue groups, indicating that the actinopterygian whole-genome duplication is specific to teleosts. The numbers
on internal branches are (from top to bottom): Bayesian posterior probabilities and maximum-likelihood bootstrap proportions
from nucleotide sequences, and quartet puzzling support values from amino acid sequences.