Comparison of phage genome sizes as differentiated by family. Genome sizes are as provided by NCBI (follow the Viruses link from http://www.ncbi.nlm.nih.gov/genome). Phage morphologies are provided also by NCBI but we defer to the International Committee for Virus Taxonomy given conflict between the two (http://www.ictvonline.org/). In addition, there are older sequences along with one newer sequence (phage G) that are not yet found on the above NCBI database page that we have included. These are for Enterobacteria phage SP (microvirus), Enterobacteria phage Fr (microvirus), Enterobacteria phage GA (microvirus), Bacillus phage G (myovirus), Bacillus phage PZA (podovirus), and Streptococcus phage SMP (siphovirus). Not included are genome sizes associated with unclassified phages. Total numbers of genomes included are as follows (if there are two numbers then the first is as found in the earlier version of this figure [19] and the second as found here): Leviviridae (10), Microviridae (17), Inoviridae (2831), Corticoviridae (1), Plasmaviridae (1), Cystoviridae (5), Tectiviridae (4), Podoviridae (92108), Siphoviridae (253291), and Myoviridae (115147). Purple refers to RNA genomes, red to ssDNA genomes, blue to dsDNA genomes as found in lipid-containing and tailless virions, and green, as indicated in the figure, are dsDNA in tailed and lipid-less virus particles.
