Characterization of <i>Iris yellow spot virus</i> from Onion in Arizona

Fig. 2. Phylogram based on the nucleocapsid protein sequence of the Iris yellow spot virus isolate from Yuma Co., AZ (designated in the tree as ‘Arizona’). A Neighbor-Joining consensus tree was generated based on 1000 boot strap replications.

Image from Plant Health Progress article:
Characterization of Iris yellow spot virus from Onion in Arizona