Family Level Phylogenies Reveal Relationships of Plant Viruses within the Order Bunyavirales.

are negative-sense segmented RNA viruses infecting arthropods, protozoans, plants, and animals. This study examines the phylogenetic relationships of plant viruses within this order, many of which are recently classified species. Comprehensive phylogenetic analyses of the viral RNA dependent RNA polymerase (RdRp), precursor glycoprotein (preGP), the nucleocapsid (N) proteins point toward common progenitor viruses. The RdRp of and show a close evolutional relationship while the preGP of and show a closed relationship. The N proteins of were closer to the , the were close to some members and the . The plant viral movement proteins of species within the and were more closely related to each other than to members of the . Interestingly, distal ends of 3' and 5' untranslated regions of species within the shared similarity to arthropod and vertebrate infecting members of the and compared to other plant virus families. Co-phylogeny analysis of the plant infecting viruses indicates that duplication and host switching were more common than co-divergence with a host species.