Anelloviruses are small negative-sense single-stranded DNA viruses with genomes ranging in size from 1.6 to 3.9 kb. The family Anelloviridae comprised 14 genera before the present changes. However, in the last five years, a large number of diverse anelloviruses have been identified in various organisms. Here, we undertake a global analysis of mammalian anelloviruses whose full genome sequences have been determined and have an intact open reading frame 1 (ORF1). We established new criteria for the classification of anelloviruses, and, based on our analyses, we establish new genera and species to accommodate the unclassified anelloviruses. We also note that based on the updated species demarcation criteria, some previously assigned species (n = 10) merge with other species. Given the rate at which virus sequence data are accumulating, and with the identification of diverse anelloviruses, we acknowledge that the taxonomy will have to be dynamic and continuously evolve to accommodate new members.

• MeSH
• Anelloviridae klasifikace   genetika   MeSH
• databáze genetické MeSH
• DNA virů genetika   MeSH
• fylogeneze MeSH
• genom virový genetika   MeSH
• otevřené čtecí rámce genetika   MeSH
• savci virologie   MeSH
• sekvence nukleotidů MeSH
• terminologie jako téma MeSH
• zvířata MeSH
• Check Tag
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• Názvy látek
• DNA virů MeSH

Torque teno sus viruses (TTSuV) were detected in the pig population in the Czech Republic by a nested PCR technique. The prevalence of individual TTSuV was found to be 42.9% (TTSuV1) and 46.7% (TTSuV2). The prevalence for TTSuV 1 and TTSuV2 was determined to be 52.7% and 60.6% in piglets at weaning, 90.9% and 63.6% in gilts, and 75% and 87.5% in sows, respectively. Both virus species were detected in 12% of newborn piglets, which suggests possible transplacental transmission. Sequencing of several virus strains showed that the sequenced TTSuV strains belong to two different species of viruses. The average similarity on the nucleotide levels between these two species was 43.3%.

• MeSH
• DNA virů chemie   genetika   izolace a purifikace   MeSH
• fylogeneze MeSH
• infekce DNA virem epidemiologie   veterinární   virologie   MeSH
• molekulární sekvence - údaje MeSH
• nemoci prasat epidemiologie   virologie   MeSH
• polymerázová řetězová reakce MeSH
• prasata MeSH
• prevalence MeSH
• sekvenční analýza DNA MeSH
• sekvenční homologie nukleových kyselin MeSH
• shluková analýza MeSH
• Torque teno virus klasifikace   genetika   izolace a purifikace   MeSH
• věkové rozložení MeSH
• zvířata MeSH
• Check Tag
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Geografické názvy
• Česká republika epidemiologie   MeSH
• Názvy látek
• DNA virů MeSH