Nomenclature for endogenous retrovirus (ERV) loci

Retrovirology

Table 1 Retroviral genera and their endogenous representatives

Genus	Type species	Endogenous representative^a
Alpharetrovirus	ALV	ALV	[37]
Betaretrovirus	MMTV	MMTV	[74]
Gammaretrovirus	MLV	MLV	[75]
Deltaretrovirus	HTLV-1	MinERVa	[66]
Epsilonretrovirus	WDSV	none ^b
Lentivirus	SRLV-A	RELiK	[64]
Spumaretrovirus	SFV	SloEFV	[65]

ALV avian leukosis virus, MMTV mouse mammary tumour virus, MLV murine leukemia virus, HTLV human T cell leukemia virus, WDSV walleye dermal sarcoma virus, SRLV-A small ruminant lentivirus A, SFV simian foamy virus, MinERVa Miniopterus endogenous deltaretrovirus, RELiK rabbit endogenous lentivirus K, SloEFV sloth endogenous foamy virus
^aFirst reported endogenous representative shown, with citation
^bNo ERVs have been identified that group robustly within the Epsilonretrovirus genus. However, distantly related, ‘epsilon-like’ elements have been described, such as the MER65/HERV-Lb elements found in the human genome [6, 76,77,78]

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