Fig. 1: Genomic landscape of the phylum Mirusviricota.
a, A maximum-likelihood phylogenomic tree of 1,204 Mirusviricota genomes based on the concatenation of manually curated alignments of MCP, terminase and portal proteins (1,871 amino acid positions). The tree was built using IQTree with the LG + F + R10 model and rooted between Styxvirales and the rest. Nodes were considered as strongly supported when SH-like aLRT was ≥80% and UFBoot was ≥95% (black dots), moderately supported when only one of the two cut-offs was met (yellow dots) and poorly supported when none of the two cut-offs were met (red dots). The tree was decorated with layers of complementary information and visualized with anvi’o. b, The number and order-level taxonomy of metagenomic MCPs in nine ecosystems. Metagenomic MCPs too distant from those in the genomic database (percentage identity <50% or bitscore <100 at the amino acid level) were not linked to any putative order (‘distant from genomic database’ category). c, Box plots summarizing the percentage of genes with a Pfam annotation and percentage of singleton genes for genomes affiliated with Mirusviricota (n = 1,257 genomes), Nucleocytoviricota (n = 1,644 genomes) and Herpesvirales (n = 121). Box plots correspond to the lower whisker, first quartile, median, third quartile and upper whisker.
