Abstract
We isolated a novel lytic phage of Ralstonia solanacearum, GP4. The GP4 phage has a latent period of ~ 2 h at its optimal multiplicity of infection and is stable at temperatures ranging from 40-70°C. GP4 lysed 16 strains of R. solanacearum belonging to phylotype IV. High-throughput sequencing revealed that GP4 has a linear dsDNA genome that consists of 61,129 bp, contains 83 open reading frames, and encodes a tRNA for cysteine. The GP4 genome has low similarity to other phage sequences in the GenBank database. Phylogenetic analysis indicated that GP4 can be taxonomically classified as a member of the Bcep22-like subfamily of the family Podoviridae.
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