FIG 10.

Rooted Bayesian phylogenetic tree of “branch 3” of the viral realm Riboviria. The tree is based on an alignment of 56 representative RdRp protein sequences as provided by Wolf et al. (55). Taxa in italics were formally approved by the ICTV (74; https://talk.ictvonline.org/taxonomy/). Colored groups with boldface labels represent viral taxa for which sufficient experimental data regarding the mode of replication have been obtained by methods of molecular virology. The “alphavirus supergroup” comprises, in addition to the depicted members, many important families of animal and plant pathogens, e.g., Togaviridae, Hepeviridae, Virgaviridae, Bromoviridae, and Closteroviridae.