Figure. . . Cladogram comparing the L2 genes of different bluetongue virus (BTV) serotypes and global strains of BTV serotype 2 (BTV-2) with that of a virus isolated in northern California, USA (2-California-2010; GenBank accession nos. JQ822248–JQ822257). Viruses are identified by serotype, country/region of origin, and for isolates of BTV serotype 2, year of identification. Bootstrap percentages are indicated at selected branching points. EHDV1, epizootic hemorrhagic disease of deer virus serotype 1.