Fig. 4

Relations between the G + C content of genome sequences and the independent selections. The abscissa in each figure is the species genomes which are arranged as the same as in Fig. 3. The species in each species group are arranged by its separability value of CG1 motif spectrum from small to large. a Animal genomes. From left to right, the species group is invertebrate, other vertebrate, other mammals, rodents and primates. b Plant genomes. From left to right, the species group is green algae, pteridophyte, monocotyledons and dicotyledons. c Fungus genomes. The figure above is Agaricomycotina genomes, the figure in the middle is Pezizomycotina genomes and the following figure is Saccharomycetales genomes. d Archaea genomes. They are classified into five subgroups: Halobacteria (black), Methanomicrobia (green), Thermococci (blue), Thermoprotei (pink), and Methanomada (red). e Eubacteria genomes. They are classified into six subgroups: Actinobacteria (black), Proteobacteria (wathet blue), Cyanobacteria (green), Bacteroidetes (red), Firmicutes (blue) and Spirochaetales (pink)