Host range and molecular characterization of a lytic Pradovirus-like Ralstonia phage RsoP1IDN isolated from Indonesia.

Arch Virol

Floral and Nursery Plants Research Unit, United States Department of Agriculture, Agricultural Research Service, Beltsville, MD, USA.

Published: December 2018

A lytic Ralstonia solanacearum-infecting phage designated Ralstonia phage RsoP1IDN was isolated from soil in Indonesia. The phage has a linear double-stranded DNA genome of 41,135 bp with 413-bp terminal repeats, and contains 41 annotated open reading frames. The phage is most closely related to Ralstonia phage RSB1, but different from RSB1 mainly in containing a putative HNH homing endonuclease and having a narrower host range. Our phylogenetic and genomic analyses revealed that both phages RsoP1IDN and RSB1 belong to the genus Pradovirus or a new genus, and not Phikmvvirus as previously reported for phage RSB1. RsoP1IDN is the first sequenced and characterized R. solanacearum-infecting phage isolated from Indonesia in the proposed species Ralstonia virus RsoP1IDN.

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http://dx.doi.org/10.1007/s00705-018-4033-1DOI Listing

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