Table 1.

Number and features of viral families harboring tRNA genes.

# Genomes w tRNA/Total Genomes	Family	Order	DNA/RNA	Hosts	Length (Kb)	# tRNAs	Avg GC%
1/24	Dicistroviridae	Picornavirales	ssRNA(+)	Invertebrates	9	1	45.31
1/9	Lipothrixviridae	Ligamenvirales	dsDNA	Archaea	32	1	35.66
1/47	Luteoviridae	Unassigned	ssRNA(+)	Plants	6	1	50.70
1/7	Marseilleviridae	Unassigned	dsDNA	Amoeba	372	2	44.19
1/6	Nudiviridae	Unassigned	dsDNA	Insects and marine crustaceans	145	1	25.53
1/97	Polyomaviridae	Unassigned	dsDNA	Mammals and birds	5	1	52.35
1/69	Virgaviridae	Unassigned	ssRNA(+)	Plants	11	1	48.53
2/48	Poxviridae	“Megavirales”	dsDNA	Humans, vertebrates and arthropods	~140	1	51.65
2/8	Polydnaviridae	Unassigned	dsDNA	Parasitoid wasps	185–564	7–8	33.72
3/6	Ascoviridae	“Megavirales”	dsDNA	Insects	173–198	1–3	42.67
3/47	Inoviridae	Unassigned	ssDNA	Bacteria	~5	1	44.30
3/67	Retroviridae	Unassigned	ssRNA(+)	Vertebrates	6–8	1	48.80
4/21	Iridoviridae	Unassigned	dsDNA	Amphibia, fish and invertebrates	123–190	1	39.92
5/11	Fuselloviridae	Unassigned	dsDNA	Thermophilic archaea	~16	1	38.37
5/6	Mimiviridae	“Megavirales”	dsDNA	Amoeba	600–1200	2–15	26.12
6/78	Herpesviridae	Herpesvirales	dsDNA	Vertebrates	119–203	1–18	62.38
7/97	Adenoviridae	Unassigned	dsDNA	Vertebrates	33–46	1	52.50
9/84	Baculoviridae	Unassigned	dsDNA	Arthropods and crustacean	81–178	1	44.01
21/24	Phycodnaviridae	Unassigned	dsDNA	Alga	170–469	2–14	39.77
115/584	Podoviridae	Caudovirales	dsDNA	Archaea and Bacteria	36–145	1–23	44.78
620/1981	Siphoviridae	Caudovirales	dsDNA	Archaea and Bacteria	14–280	1–43	55.51
776/1079	Myoviridae	Caudovirales	dsDNA	Archaea and Bacteria	32–497	1–36	41.59