Comparison of the lengths of deduced catfish proteins with homologous reference proteins from databases. (A) Fractional distribution of catfish proteins with lengths falling within various fractions, e.g., 0 indicates identical lengths of catfish proteins with reference proteins; -0.2 and 0.2 indicates the lengths of catfish proteins are 20% shorter or longer than those of reference proteins, respectively, and so on. Overall 66% or 16,538 transcripts out of a total of 25,144 identified unique catfish genes are within 80% bracket as compared with the lengths of reference protein counterparts. (B) Ratio of catfish predicted protein length versus length of reference protein was indicated in histograms (left Y axis), and the curved line denotes the cumulative percentage (right Y-axis). X-axis is the ratio of predicted catfish protein length to corresponding reference orthologous protein length, i.e. catfish protein length/reference protein length. Note that the unit of X-axis is ten times of that in (A), i.e. the ratio of 1.0 represents the transcripts of length within 95% bracket as compared with the lengths of reference protein counterparts, etc. The left Y-axis represents the number of occurrence of catfish protein lengths in thousand, and right Y-axis is the cumulative percentage.