Table 1 Non-retroviral integrated RNA viruses in eukaryotic genomes.

Fungi

Candida parapsilosis

Totivirus (dsRNA) related to Saccharomyces cerevisiae L-A

(L1) virus

Capsid protein (CP)

Not tested

[1]

Debaryomyces hansenii

Totivirus (dsRNA) related to S. cerevisiae L-A

(L1) virus; M2 killer virus (unclassified dsRNA virus)

CP, RdRp; apparently complete viral genome with overlapping CP and RdRp genes as in L1 virus; an extra copy of the CP gene; 4 copies of K2 toxin gene

RdRp but not Cp transcripts detected by reverse transcriptase polymerase chain reaction (RT-PCR)

[1, 13]

Penicillium marneffei

Totivirus (dsRNA) related to S. cerevisiae L-A

(L1) virus

CP, RdRp; apparently complete viral genome with overlapping CP and RdRp genes as in L1 virus

Not tested

[1]

Pichia stipitus

Totivirus (dsRNA) related to S. cerevisiae L-A

(L1) virus

CP, RdRp; apparently complete viral genome with fused CP and RdRp genes; 3 extra copies of the CP genes

RdRp but not CP transcripts detected by RT-PCR; transcripts of both genes detected in EST database

[1, 13]

Uromyces appendiculatus

Totivirus (dsRNA) related to S. cerevisiae L-A

(L1) virus

CP (from EST database)

CP gene transcript detected in EST database

[1]

Candida tropicalis

M2 killer virus (unclassified dsRNA virus)

K2 toxin gene

Not tested

[13]

Kluyveromyces lactis

M2 killer virus (unclassified dsRNA virus)

K2 toxin gene (3 copies)

Not tested

[13]

Vanderwaltozyma polyspora

Penicillium stoloniferum virus F

CP

Not tested

[13]

Animals

Mouse (Mus musculus)

Lymphocytic horiomeningitis virus (negative- strand ssRNA, Arenaviridae)

Glycoprotein and nucleoprotein genes (small genomic segment)

Not tested

[9, 15]

Mosquitoes (Aedes albopictus and Aedes aegypti)

Flavivirus (positive- strand ssRNA) related to Cell Fusing Agent and Kamiti River virus

Non-structural protein genes (3'-terminal part of the genome)

Expressed

[10, 11]