2019
DOI: 10.3390/v11030233
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A New Prevalent Densovirus Discovered in Acari. Insight from Metagenomics in Viral Communities Associated with Two-Spotted Mite (Tetranychus urticae) Populations

Abstract: Viral metagenomics and high throughput sequence mining have revealed unexpected diversity, and the potential presence, of parvoviruses in animals from all phyla. Among arthropods, this diversity highlights the poor knowledge that we have regarding the evolutionary history of densoviruses. The aim of this study was to explore densovirus diversity in a small arthropod pest belonging to Acari, the two-spotted spider mite Tetranychus urticae, while using viral metagenomics based on virus-enrichment. Here, we prese… Show more

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Cited by 24 publications
(26 citation statements)
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“…This high divergence suggests that the ancestral role of exogenous siRNA machinery in antiviral immunity is conserved in Acari [22]. Among the species investigated, it was intriguing to find that species such as V. destructor and T. urticae known to be intimately associated with several viruses [66][67][68] had the highest number of copies of these proteins especially, Ago2 (Table 3). This may suggest that these two species evolved several copies of these proteins as a mechanism to counteract the negative effects of viruses that are associated with them.…”
Section: Discussionmentioning
confidence: 99%
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“…This high divergence suggests that the ancestral role of exogenous siRNA machinery in antiviral immunity is conserved in Acari [22]. Among the species investigated, it was intriguing to find that species such as V. destructor and T. urticae known to be intimately associated with several viruses [66][67][68] had the highest number of copies of these proteins especially, Ago2 (Table 3). This may suggest that these two species evolved several copies of these proteins as a mechanism to counteract the negative effects of viruses that are associated with them.…”
Section: Discussionmentioning
confidence: 99%
“…This may suggest that these two species evolved several copies of these proteins as a mechanism to counteract the negative effects of viruses that are associated with them. It is important to note that T. urticae is one of the most serious polyphagous Arthropod pest with more than 1000 host plant species identified to date [5,9,10] while V. destructor of the family Varroidae is the most important ecto-parasite that is responsible for honey bee (Apis mellifera) colony losses almost worldwide [66][67][68]. The ancestral siRNA-based antiviral defense is also maintained in insects…”
Section: Discussionmentioning
confidence: 99%
“…This may suggest that these two species evolved several copies of these proteins as a mechanism to counteract the negative effects of viruses that are associated with them. It is important to note that T. urticae is one of the most serious polyphagous arthropod pest with more than 1000 host plant species identi ed to date [5,9,10] while V. destructor of the family Varroidae and its associated viruses is the most important ecto-parasite that is responsible for honey bee (Apis mellifera) colony losses almost worldwide [66][67][68]. The ancestral siRNA-based antiviral defense is also maintained in insects [18], crustaceans [24,57] and plants [69,70] but not in vertebrates [71,72].…”
Section: Discussionmentioning
confidence: 99%
“…This high divergence suggests that the ancestral role of exogenous siRNA machinery in antiviral immunity is conserved in Acari [22]. Among the species investigated, it was intriguing to nd that species such as V. destructor and T. urticae known to be intimately associated with several viruses [66][67][68] had the highest number of copies of these proteins, especially Ago2 (Table 3). This may suggest that these two species evolved several copies of these proteins as a mechanism to counteract the negative effects of viruses that are associated with them.…”
Section: Discussionmentioning
confidence: 99%
“…This may suggest that these two species evolved several copies of these proteins as a mechanism to counteract the negative effects of viruses that are associated with them. It is important to note that T. urticae is one of the most serious polyphagous arthropod pest with more than 1000 host plant species identi ed to date [5,9,10] while V. destructor of the family Varroidae and its associated viruses is the most important ecto-parasite that is responsible for honey bee (Apis mellifera) colony losses almost worldwide [66][67][68]. The ancestral siRNAbased antiviral defense is also maintained in insects [18], crustaceans [24,57] and plants [69,70] but not in vertebrates [71,72].…”
Section: Discussionmentioning
confidence: 99%