Figure 4.
Plot of the G+C content of noncoding RNAs (rRNA + tRNAs) versus the G+C of genome in prokaryotes. The following shapes and shades are used for distinguishing the organisms: black circles, hyperthermophiles; dark gray circles, thermophiles; open circles, mesophiles; filled squares, psychrophiles; inverted gray triangle, A. cellulolyticus; gray triangle, T. fusca; inverted open triangles, two Frankia sp. (ACN14a, CcI3), and open triangles, two Streptomyces sp. (S. avermitilis, S. coelicolor). Black lines represent the regression line and 95% confidence intervals, computed for the mesophiles.
