Alphasatellitidae: a new family with two subfamilies for the classification of geminivirus- and nanovirus-associated alphasatellites

Nanoviruses and geminiviruses are circular, single stranded DNA viruses that infect many plant species around the world. Nanoviruses and certain geminiviruses that belong to the Begomovirus and Mastrevirus genera are associated with additional circular, single stranded DNA molecules (~ 1-1.4 kb) tha...

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Vydáno v:	Archives of virology Ročník 163; číslo 9; s. 2587 - 2600
Hlavní autoři:	Briddon, Rob W., Martin, Darren P., Roumagnac, Philippe, Navas-Castillo, Jesús, Fiallo-Olivé, Elvira, Moriones, Enrique, Lett, Jean-Michel, Zerbini, F. Murilo, Varsani, Arvind
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Vienna Springer Vienna 01.09.2018 Springer Nature B.V Springer Verlag
Témata:	Animals Begomovirus Biomedical and Life Sciences Biomedicine coconuts Cocos - virology Deoxyribonucleic acid Divergence DNA DNA viruses Geminiviridae - classification Geminiviridae - genetics Geminiviridae - isolation & purification Genera Genome, Viral Hemiptera - virology Infectious Diseases Life Sciences Mastrevirus Medical Microbiology Musa - virology Nanoviridae Nanovirus - classification Nanovirus - genetics Nanovirus - isolation & purification new family Nucleotide sequence nucleotide sequences Odonata - virology Phylogeny Plant Diseases - virology Plant viruses Satellite Viruses - classification Satellite Viruses - genetics Satellite Viruses - isolation & purification sequence analysis single-stranded DNA Species Vegetal Biology Virology Virology Division News
ISSN:	0304-8608, 1432-8798, 1432-8798
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Shrnutí:	Nanoviruses and geminiviruses are circular, single stranded DNA viruses that infect many plant species around the world. Nanoviruses and certain geminiviruses that belong to the Begomovirus and Mastrevirus genera are associated with additional circular, single stranded DNA molecules (~ 1-1.4 kb) that encode a replication-associated protein (Rep). These Rep-encoding satellite molecules are commonly referred to as alphasatellites and here we communicate the establishment of the family Alphasatellitidae to which these have been assigned. Within the Alphasatellitidae family two subfamilies, Geminialphasatellitinae and Nanoalphasatellitinae , have been established to respectively accommodate the geminivirus- and nanovirus-associated alphasatellites. Whereas the pairwise nucleotide sequence identity distribution of all the known geminialphasatellites (n = 628) displayed a troughs at ~ 70% and 88% pairwise identity, that of the known nanoalphasatellites (n = 54) had a troughs at ~ 67% and ~ 80% pairwise identity. We use these pairwise identity values as thresholds together with phylogenetic analyses to establish four genera and 43 species of geminialphasatellites and seven genera and 19 species of nanoalphasatellites. Furthermore, a divergent alphasatellite associated with coconut foliar decay disease is assigned to a species but not a subfamily as it likely represents a new alphasatellite subfamily that could be established once other closely related molecules are discovered.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23
ISSN:	0304-8608 1432-8798 1432-8798
DOI:	10.1007/s00705-018-3854-2