Members of this genus infect Erwinia amylovora (Erwinia phage vB_EamM-Y2; (Born et al., 2011)) and Pantoea agglomerans (Pantoea phage vB_PagM_SSEM1). The Erwinia phage vB_EamM-Y2 capsid is 67 nm in diameter and the tail in 124 nm long. The average properties of genomes of members of the Loessnervirus genus are: 55.80 kbp (44.2 % G+C), 94 protein-coding sequences. No encoded tRNAs have been reported. The genome of phage Erwinia phage vB_EamM-Y2 possesses long direct terminal repeats of 2,608 bp.
Species demarcation criteria
Members of the same species are more than 95% identical in genome nucleotide sequence, including the terminal repeat region. Viruses with genomes that differ by more than 5% are assigned to different species.