FIG 9.

Arthropod large dsDNA virus phylogeny including ToNV. The tree was obtained by ML inference analysis of concatenated amino acid multiple alignments of 37 nudivirus-related genes (Table 5). Numbers on the nodes indicate ML nonparametric bootstrap supports (100 replicates). The white spot syndrome virus (WSSV-TH) was defined as an outgroup based on genome content. Virus families and genera are those approved by the International Committee on Taxonomy of Viruses (ICTV). The newly proposed and already approved nudivirus genera are shaded in gray. ▼, endogenous viral element derived from two independent nudivirus integration events, which led either to the bracovirus symbiosis or to the Nilaparvata lugens endogenous NV. *, diptera-infecting nudiviruses. Virus abbreviations, sequences, and accession numbers are those defined in Tables 1 and 5.