Correlation between evidence for duplicate genes and number of gene families characterized. (Vertical axis) proportion with a detected duplication among gene families characterized for each actinopterygian lineage. (Horizontal axis) number of gene families characterized for each actinopterygian lineage. The round points represent data for the euteleost lineages listed in Table 2. The square point represents data for Anguilliformes (eels). The straight line is the linear correlation for euteleost lineages (R = 0.89;P = 0.018). The curved dotted lines are 95% confidence interval of the correlation; notice that the point for eels is not included in this interval.
