Fig. 5

Dendrogram of csp gene based on the amino acid from 32 Pv Henan isolates and 70 published CSP sequences collected around the world. The tree was conducted by using the Neighbor-Joining method in MEGA version 7.0 software. The optimal tree with the sum of branch length = 1.73200559 is shown. The tree is drawn to scale, with branch lengths in the same units as those of the evolutionary distances used to infer the phylogenetic tree. The evolutionary distances were computed using the Poisson correction method and are in the units of the number of amino acid substitutions per site. The bootstrap values are indicated on the branches and these values show the number of times out of 500 replications. The geographical origin of the 70 CSP published sequences were as follows: Brazil (FJ845390), China (U08977–U08978, AAC46499-AAC46501, FJ601732, FJ601755, FJ601725), Columbia (KC154046, GU339085), El-Salvador (J02751), Gabon (U09737), Greece (KC896384), Honduras (DQ156131), India (KM099683, JQ308526, ACN69860, ACB38259), Indonesia (JQ308527), Iran (AAT73115, AY632261, AY632300), Mauritania (AY674050, AAV80840), Myanmar (EU048255), North Korea (AF316580, AF316581, M20670, DQ859734), Papua New Guinea (ABX71468, EU031828), Philippine (U08980–U08981, AAC46502), Solomon Island (U08982–U08983, AAC46505), South Korea (AF215741, AF316583, AF436890, AY137777, AY137778, AJ295636, AF164605), Sri Lanka (JQ362650), Thailand (M34697, HQ011320, AAA29507), Vietnam (ACB38262, EU401929), VK210 (M28746), VK247 (M28745) and Hainan and Anhui province sequences