Circular genomes related to anelloviruses identified in human and animal samples by using a combined rolling-circle amplification/sequence-independent single primer amplification approach.
A combined rolling-circle amplification (RCA) and sequence-independent single primer amplification (SISPA) approach was applied to four samples of human plasma and one sample of saliva from a cat. This approach permitted the characterization of nine anelloviruses. Most of them were identified as highly divergent strains that were classified into species of the genus Anellovirus. The smallest anellovirus described so far in humans was characterized (2PoSMA, 2002 nt; 'small anellovirus' species). Two highly divergent sequences belonging to the species Torque Teno Mini Virus (LIL-y1, 2887 nt; LIL-y2, 2871 nt), which clustered into a new phylogenetic branch, were also identified in human plasma samples. Finally, two genomes that are separated by a genetic divergence of 46 % were characterized in the cat's saliva, one of these creating a distinct phylogenetic branch (PRA1, 2019 nt). These results highlight the potential of RCA-SISPA for detecting circular (or circularized) genomes.
Biagini
Philippe
P
Unité des Virus Emergents EA3292, Etablissement Français du Sang Alpes-Méditerranée, Service de Virologie Moléculaire, 13005 Marseille, France.
Uch
Rathviro
R
Unité des Virus Emergents EA3292, Etablissement Français du Sang Alpes-Méditerranée, Service de Virologie Moléculaire, 13005 Marseille, France.
Belhouchet
Mourad
M
Unité des Virus Emergents EA3292, Etablissement Français du Sang Alpes-Méditerranée, Service de Virologie Moléculaire, 13005 Marseille, France.
Attoui
Houssam
H
Institute for Animal Health, Pirbright Laboratory, Department of Arbovirology, Pirbright GU24 0NF, UK.
Cantaloube
Jean-François
JF
Unité des Virus Emergents EA3292, Etablissement Français du Sang Alpes-Méditerranée, Service de Virologie Moléculaire, 13005 Marseille, France.
Brisbarre
Nadège
N
Unité des Virus Emergents EA3292, Etablissement Français du Sang Alpes-Méditerranée, Service de Virologie Moléculaire, 13005 Marseille, France.
de Micco
Philippe
P
Unité des Virus Emergents EA3292, Faculté de Médecine, 13005 Marseille, France.|Unité des Virus Emergents EA3292, Etablissement Français du Sang Alpes-Méditerranée, Service de Virologie Moléculaire, 13005 Marseille, France.
D000818:Animals; D001483:Base Sequence; D001769:Blood / Q000821:virology; D002415:Cats; D017931:DNA Primers; D004270:DNA, Circular / Q000235:genetics*; D004279:DNA, Viral / Q000097:blood / Q000235:genetics* / Q000302:isolation & purification; D005784:Gene Amplification; D016679:Genome, Viral; D006801:Humans; D008969:Molecular Sequence Data; D011134:Polysaccharides / Q000235:genetics* / Q000302:isolation & purification; D012463:Saliva / Q000821:virology
D017931:DNA Primers; D004270:DNA, Circular; D004279:DNA, Viral; D011134:Polysaccharides; C046197:anemaran