Distinguishing features
Members of this genus infect Bacillus cereus and Bacillus thuringiensis. The type species is Bacillus virus B4. Terminal repeats have been reported for some bequatrovirus genomes. The unique sequence of the genome of the exemplar isolate, of the type species is 163 kbp, with 277 gene coding sequences. No encoded tRNAs have been reported.
Virion
See discussion under family description.
Genome organisation and replication
See discussion under family description.
Biology
Members of the genus infect Bacillus cereus and Bacillus thuringiensis.
Derivation of names
Bequatrovirus: derived from the name of the exemplar isolate, Bacillus phage B4, of the type species (phonetic B [Be] followed by quatro, derived from Italian for four, quattro).
Species demarcation criteria
Members of the same species are more than 95% identical in genome nucleotide sequence, including the terminal repeat region. Phages with genomes that differ by more than 5% are assigned to different species.
Member species
Species | Virus name | Isolate | Accession number | RefSeq number | Available sequence | Virus Abbrev. | |
---|---|---|---|---|---|---|---|
Bequatrovirus avesobmore | Bacillus phage AvesoBmore | KT307976 | NC_028887 | Complete genome | |||
Bequatrovirus B4 | Bacillus phage B4 | JN790865 | NC_018863 | Complete genome | |||
Bequatrovirus B4 | Bacillus phage B5S | JN797796 | Complete genome | ||||
Bequatrovirus bigbertha | Bacillus phage BigBertha | KF669647 | NC_022769 | Complete genome | |||
Bequatrovirus riley | Bacillus phage Riley | KJ489402 | NC_024788 | Complete genome | |||
Bequatrovirus spock | Bacillus phage Spock | KF669662 | NC_022763 | Complete genome | |||
Bequatrovirus troll | Bacillus phage Troll | KF208639 | NC_022088 | Complete genome |