Complete genome sequence of bacteriophage vB_XeuM-YB23, a new member of the genus Bosavirus that infects Xanthomonas euvesicatoria

초록

Xanthomonas euvesicatoria is a major phytopathogenic bacterium responsible for bacterial spot disease (BSD) in peppers and tomatoes that leads to significant global economic losses. Here, we report the complete genome sequence of a newly isolated bacteriophage vB_XeuM-YB23 that infects X. euvesicatoria KACC 18722 isolated from Korean chili pepper. The genome of phage vB_XeuM-YB23 was 63, 787 bp in length with 68.1% G + C content, encoding 80 protein-coding genes and one tRNA gene. Genome-based phylogeny revealed that the isolated phage clustered with the genus Bosavirus in the subfamily Bradleyvirinae and encoded both endolysin and o-spanin genes, suggesting a more efficient lysis mechanism than other Xanthomonas phages. The broad host range, efficient bacteriolytic activity, and environmental stability of phage vB_XeuM-YB23 make it a promising biocontrol agent against BSD in crops. These results provide insights into the biodiversity and taxonomy of Xanthomonas phages and their potential application in the management of BSD-associated X. euvesicatoria.

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