Phylogenetic analysis of deduced amino acid sequences of UPOV and ABV in comparison to those of other selected orthomyxoviruses, indicated by their GenBank accession number and abbreviation (UPOV, Upolu virus; ABV, Aransas Bay virus; JOSV, Jos virus; THOV, Thogoto virus; DHOV, Dhori virus; FLUCV, influenza C virus; FLUBV, influenza B virus; FLUAV, influenza A virus; QRFV, Quaranfil virus; JAV, Johnston Atoll virus). Neighbor-joining trees were constructed under a Jukes-Cantor model, running 1,000 pseudoreplicates; bootstrap values of >50% are indicated at the respective nodes; and scale bars indicate substitutions per site. (A) PB2 (segment 1); (B) PB1 (segment 2); (C) PA (segment 3); (D) GP (segment 4); (E) NP (segment 5); (F) M (segment 6).