Comparative Analyses of Fundamental Differences in Membrane Transport Capabilities in Prokaryotes and Eukaryotes
Figure 3
Number of Total ORFs versus Number of Distinct Transporter Families or Average Number of Paralogs per Family
The number of total ORFs in the genome for each of the 141 sequenced prokaryotic and eukaryotic organisms (x-axis) was plotted as a function of either the number of distinct transporter families (A) or the average number of paralogs per family (B) (y-axis). Blue diamonds represent prokaryotic organisms and red squares represent eukaryotic organisms. Trend line and power correlation R2 value are shown for prokaryotes and eukaryotes, respectively. A group of α-Proteobacteria are enclosed by a circle (see text for discussion).