Figure 4From: Complete sequence and organization of Antheraea pernyi nucleopolyhedrovirus, a dr-rich baculovirusThe phylogenetic tree of v-trex in NPVs and someEukaryotes. The phylogeny indicates distinct lineages when some NPVs and Eukaryotes v-trex are included. The root position of the gene suggested that the four NPVs share a common ancestral lineage with some insects. The v-trex in NPV may originate from an ancestral host.Back to article page