Fig. 1.
Dendrogram representing relatedness among P. multocida strains isolated from poultry according to biological characteristics of isolates. Note: phylogenetic tree: Multiple genes combined to build phylogenetic tree base on 16S rRNA and rpoB gene. Red square: positive reaction; Gray squares: negative reaction; Ct: capsular type RC: Rongchang; NJ: Neijiang; DZ: Dazu; YC: Yongchuan; LC: Longchang. G: goose; D: duck; C: chicken.