Figure. Phylogenetic trees for the 7 nucleotide genomic segments of D/bovine/Yamagata/1/2019 (arrow), an influenza D virus of a new phylogenetic lineage, Japan. A) Polymerase basic protein 2; B) polymerase basic protein 1; C) polymerase protein 3; D) hemagglutinin-esterase-fusion protein; E) nucleoprotein; F) matrix protein; and G) nonstructural protein segments. Maximum-likelihood analysis, in combination with 500 bootstrap replicates, was used to derive trees based on nucleotide sequences of the genomic segments. Bootstrap values are shown above and to the left of the major nodes. Scale bars indicate nucleotide substitutions per site.