Morphological and genomic characterization of two reoviruses (P and W2) pathogenic for marine crustaceans; do they constitute a novel genus of the Reoviridae family?

Montanie, Hélène; Bossy, J.P.; Bonami, Jean-Robert

doi:10.1099/0022-1317-74-8-1555

Cited by 36 publications

(24 citation statements)

References 15 publications

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“…Indeed, Meyers et al [54], [58] have shown that the 11-segmented American oyster isolate 13p 2 does not productively infect oysters and have argued that putative aquareoviruses obtained from oysters or clams are more likely to be fish viruses that simply accumulated in these shellfish upon filter feeding of virus-contaminated water. Reovirus-like isolates found replicating in a variety of crab species, on the other hand, have been subsequently shown to possess 12 or 10, rather than 11, genome segments and to be phylogenetically divergent from Aquareovirus members [59]–[63]. Reovirus-like isolates from shrimp have not been genetically characterized.…”

Section: Resultsmentioning

confidence: 99%

Bioinformatics of Recent Aqua- and Orthoreovirus Isolates from Fish: Evolutionary Gain or Loss of FAST and Fiber Proteins and Taxonomic Implications

Nibert

Duncan

2013

PLoS ONE

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Family Reoviridae, subfamily Spinareovirinae, includes nine current genera. Two of these genera, Aquareovirus and Orthoreovirus, comprise members that are closely related and consistently share nine homologous proteins. Orthoreoviruses have 10 dsRNA genome segments and infect reptiles, birds, and mammals, whereas aquareoviruses have 11 dsRNA genome segments and infect fish. Recently, the first 10-segmented fish reovirus, piscine reovirus (PRV), has been identified and shown to be phylogenetically divergent from the 11-segmented viruses constituting genus Aquareovirus. We have recently extended results for PRV by showing that it does not encode a fusion-associated small transmembrane (FAST) protein, but does encode an outer-fiber protein containing a long N-terminal region of predicted α-helical coiled coil. Three recently characterized 11-segmented fish reoviruses, obtained from grass carp in China and sequenced in full, are also divergent from the viruses now constituting genus Aquareovirus, though not to the same extent as PRV. In the current study, we reexamined the sequences of these three recent isolates of grass carp reovirus (GCRV)–HZ08, GD108, and 104–for further clues to their evolution relative to other aqua- and orthoreoviruses. Structure-based fiber motifs in their encoded outer-fiber proteins were characterized, and other bioinformatics analyses provided evidence against the presence of a FAST protein among their encoded nonstructural proteins. Phylogenetic comparisons showed the combination of more distally branching, approved Aquareovirus and Orthoreovirus members, plus more basally branching isolates GCRV104, GCRV-HZ08/GD108, and PRV, constituting a larger, monophyletic taxon not suitably recognized by the current taxonomic hierarchy. Phylogenetics also suggested that the last common ancestor of all these viruses was a fiber-encoding, nonfusogenic virus and that the FAST protein family arose from at least two separate gain-of-function events. In addition, an apparent evolutionary correlation was found between the gain or loss of NS-FAST and outer-fiber proteins among more distally branching members of this taxon.

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Section: Resultsmentioning

confidence: 99%

Bioinformatics of Recent Aqua- and Orthoreovirus Isolates from Fish: Evolutionary Gain or Loss of FAST and Fiber Proteins and Taxonomic Implications

Nibert

Duncan

2013

PLoS ONE

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“…1 and 2) with acridine orange staining (Bonami, 1973(Bonami, , 1980Johnson and Bodammer, 1975;Johnson, 1983). W and W2 form unusual cytoplasmic structures called ''rosettes" (Mari, 1987;Mari and Bonami, 1988b;Montanié, 1992;Montanié et al, 1993a). The rosettes are formed by 5-7 particles in section (Fig.…”

Section: Tissue Tropism and Lesionsmentioning

confidence: 97%

“…structure and size of the viral particle, cytoplasmic or nuclear location and tissue affinity of the virions. On the other hand, shrimp viruses were genetically characterized and consequently detection methods were well Vago, 1966;Bonami, 1973Bonami, , 1980Montanié et al, 1993a;Bonami and Comps, 1976;Mari and Bonami, 1986, 1987, 1988a,b. Carcinus maenas W virus Johnson, 1977 W2, RC84 Zhang, 2006 Callinectes sapidus RLV Zhang, 2006;Zhang et al, 2002Eriocheir sinensis EsRV905 Weng et al, 2007Zhang et al, 2007 Scylla serrata EsRV806 MCRV Birnaviridae M. depurator IPN-like virus Clotilde, 1984 ssRNA Bunyaviridae M. depurator S virus Bonami et al, 1975;Bonami, 1980C.…”

Section: Introductionmentioning

confidence: 99%

Viral diseases in commercially exploited crabs: A review

Bonami

Zhang

2011

Journal of Invertebrate Pathology

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“…An increasing number of reports demonstrate that the marine environment contains viruses, e.g. the aquareoviruseq (Montanier et al, 1993), which infect marine vertebrates and invertebrate$. Therefore it appears to be plausible that invertebrates are also provided with the physiological antiviral (2'-S')A,, synthetase protection system.…”

Section: Discussionmentioning

confidence: 99%

The (2′‐5′)Oligoadenylate Synthetase is Present in the Lowest Multicellular Organisms, the Marine Sponges

Kuusksalu

Pihlak

Müller

et al. 1995

European Journal of Biochemistry

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We have proved the presence of (2′‐5′)oligoadenylates [(2′‐5′)An] and oligoadenylate synthetase [(2′‐5′)An synthetase] in the marine sponge Geodia cydonium. (2′‐5′)An isolated from sponge crude extract competed with authentic (2′‐5′)An for binding to polyclonal antiserum against (2′‐5′)An. HPLC analysis revealed the presence of nucleotides eluting with molecular markers for (2′‐5′)A oligomers. The biological activity of sponge (2′‐5′)An was demonstrated by inhibiting the protein biosynthesis in rabbit reticulocyte lysate. The activity of the (2′‐5′)An synthetase, present in crude sponge extract, was found to be high compared to that in mammalian interferon‐treated cell extract. The (2′‐5′)An synthetase from sponge extract binds to poly(I) · poly(C) as does the mammalian enzyme. Western blot analysis with antibodies to recombinant rat 43‐kDa (2′‐5′)An synthetase revealed in sponge immunologically related proteins with molecular masses of approximately 110, 65, 61 and 34 kDa. We conclude, that the (2′‐5′)An system has evolved from receptors and enzymes involved in cell adhesion and/or growth control.

show abstract

Morphological and genomic characterization of two reoviruses (P and W2) pathogenic for marine crustaceans; do they constitute a novel genus of the Reoviridae family?

Cited by 36 publications

References 15 publications

Bioinformatics of Recent Aqua- and Orthoreovirus Isolates from Fish: Evolutionary Gain or Loss of FAST and Fiber Proteins and Taxonomic Implications

Bioinformatics of Recent Aqua- and Orthoreovirus Isolates from Fish: Evolutionary Gain or Loss of FAST and Fiber Proteins and Taxonomic Implications

Viral diseases in commercially exploited crabs: A review

The (2′‐5′)Oligoadenylate Synthetase is Present in the Lowest Multicellular Organisms, the Marine Sponges

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