File:PMC5244389 srep40712-f9.png

English: f9: Optimal dendrogram of the 3,905 RefSeq viral genomes (k = 9).The braches are colored by Baltimore classifications. The circles, from inside to outside, are colored by different orders, hosts, and genome sizes as follows: The ranches by Baltimore classification: dsDNA (no RNA stage), red; dsRNA, green; RT viruses, pink; ssDNA, blue; ssRNA negative-strand, bright blue; ssRNA positive-strand, yellow. The First circle, inside to outside, by order: Caudovirales, red; Herpesvirales, green; Ligamenvirales, blue; Mononegavirales, orange; Nidovirales, cyan: Picornavirales, pink; Tymovirales, dark green; unclassified, silver. The second circle, inside to outside, by host: protist, orange; archaea, red; bacteria, dark green; fungi, blue; animal, cyan; animal and plants, pale violet red; plant, pink; environment or NA, silver.The third circle, inside to outside, by genome size: Q1, green; Q2, yellow; Q3, orange; Q4, red.