Figure 4

Phylogenetic analysis of 28 cultivable isolates. The tree is constructed based on the 16S rRNA gene sequences of each strain. Bootstrap values over 0.5 (1000 replications) are indicated using filled purple circles on the branch. Strain ID prefixed with “LD” indicates egg surface (E) isolates, strain ID prefixed with “L” indicates SEC (C) isolates, and strain ID prefixed with “T” indicates bulk soil (B) isolates. Different label background colors represent different clades at the family level. The antimicrobial activity against “Bt” or “Bb” strains is indicated using pentagram symbols, filled black pentagrams represent strong antimicrobial activity, partially filled pentagrams represent weak antimicrobial activity, and open pentagrams represent no antimicrobial activity.