Family: Inoviridae

Genus: Xylivirus

Distinguishing features

Virions of phage in the genus Xylivirus are filamentous particles of about 1,210 × 8 nm. The genome is 7,190 nt in length and encodes 12 proteins. The exemplar isolate Xanthomonas phage Xf109 infects Xanthomonas oryzae and can persist in the bacterium as a prophage integrated in the host genome at the attB/attP sequence 5′-TATACATTATGCGAA-3′ (Yeh 2017). Xanthomonas phage Xf409 is considered as a variant of Xanthomonas phage Xf109. 

Virion

See discussion under family description. 

Genome organisation and replication

See discussion under family description. 

Biology

Members of this genus infect Xanthomonas oryzae. 

Species demarcation criteria

There is only one species in the genus. Members of additional species will be >5% different in the DNA sequence of their genomes as assessed using the BLASTn algorithm.