<i>Nesoclutha declivata</i> Homoptera Cicadellidae, Vector of Digitaria Streak Virus (Geminivirus) in Vanuatu

Julia, Jean-François; Dollet, Michel

doi:10.1111/j.1439-0434.1989.tb04501.x

Cited by 9 publications

(4 citation statements)

References 7 publications

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“…The lack of homology between the D. sanguinalis Geminivirus DNA and CFDV DNA is in agreement with the observation that the two disease agents have different vectors (Nesoclutha declivata and M. taffini respectively (Julia and Dollet 1989). Other species are yet to be assayed as potential natural sources of CFDV.…”

Section: Coconut and Other Palm Treessupporting

confidence: 84%

Coconut and other palm trees

Rodriguez¹,

Hanold

Morin³

et al. 2003

Virus and Virus-Like Diseases of Major Crops in Developing Countries

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Section: Coconut and Other Palm Treessupporting

confidence: 84%

Coconut and other palm trees

Rodriguez¹,

Hanold

Morin³

et al. 2003

Virus and Virus-Like Diseases of Major Crops in Developing Countries

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“…TobYDV and other perhaps as yet undiscovered SI viruses infecting dicots would then have been "escapes" from the graminaceous host range limitation, but still with leafhopper vectors, and the same genomic organisation. It is interesting that there is no significant difference in the clustering shown by both CP and Rep sequences from TobYDV relative to any other grass-infecting SI virus despite its very different host; nor is there a significant difference in the clustering of the CP and Rep sequences of DSV with the homologous proteins of others of the African streak virus group, despite DSV having a different vector from the other viruses [20]. This is perhaps evidence that changes in vector genera and even in the most basal change in host plant type can be achieved by changes in virus sequence that are sufficiently minor as to be non-detectable by phylogenetic analysis of the relevant ORFs.…”

Section: Evolutionary Implicationsmentioning

confidence: 93%

A phylogenetic and evolutionary justification for three genera of Geminiviridae

Rybicki

1994

Archives of Virology

198

117

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Gene-by-gene phylogenetic analyses of all of the viruses for which sequences are known, as well as analysis of the coding capacities, clearly demonstrated that there are two major groups of viruses in the taxonomic family Geminiviridae. These are of the Subgroup I type, with one genomic component, which mainly infect monocots and are leafhopper-transmitted; and of the Subgroup III type, with one or two genomic components, which infect dicots and are whitefly-transmitted. The existence of "New World" and "Old World" clusters of Subgroup III viruses was confirmed, as well as the possession by the latter of an AV1 ORF not present in New World viruses. A third minor generic group is defined by viruses of the Subgroup II type, which have a single genomic component, infect dicots, and are leafhopper-transmitted. The latter group appear to be the result of an ancient recombination event between a Subgroup III-like and a Subgroup I-like virus. The question of whether one- and two-component Subgroup III viruses should be in the same taxon appears hard to resolve: the only distinguishing feature of the one-component Subgroup III viruses is that they apparently have no second component, as gene-for-gene comparisons of the "A" components of the viruses with other Subgroup III viruses place them within a larger Old World group of viruses, most of which are two component. The possibility exists that these viruses may either have independently lost their B components, or possess a B component that has simply not yet been found. Possible nomenclatural changes to accommodate viruses with the same name which are not closely related to one another, and possible evolutionary scenarios to account for the observed familial, generic and specific diversity of geminiviruses, are discussed.

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“…Phylogenetic analysis has established that DSV is closely related to MSV (34). DSV is not transmitted by Cicadulina mbila, a vector of MSV, but is transmitted by the leafhopper, Nesoclutha declivata (19). Maize plants were agroinoculated with cloned DSV as previously described for MSV (18).…”

Section: Methodsmentioning

confidence: 99%

Spatial and Temporal Distribution of Geminiviruses in Leafhoppers of the Genus Cicadulina Monitored by Conventional and Quantitative Polymerase Chain Reaction

Lett¹,

Granier²,

Hippolyte³

et al. 2002

Phytopathology®

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Spatial and temporal distribution of Maize streak virus (MSV, family Geminiviridae, genus Mastrevirus) was monitored in the vector species Cicadulina mbila and the nonvector species C. chinaï using conventional and real-time quantitative polymerase chain reaction. Sustained feeding on MSV-infected plants showed that virus accumulation reaches a maximum in C. chinaï, but not in C. mbila. After a 3-day acquisition access feeding period (AAP), MSV was detected in the gut, the hemolymph, and the head of C. mbila, but only in the gut of C. chinaï. Similarly, Digitaria streak virus (genus Mastrevirus), which is not transmitted by either of the two species, was only detected in the gut. MSV was detected in the hemolymph of C. mbila 3 h after the beginning of the AAP. Although viral DNA progressively decreases in the vector and nonvector species after a 3-day AAP, MSV DNA remained stable in the salivary glands of C. mbila.

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Nesoclutha declivata Homoptera Cicadellidae, Vector of Digitaria Streak Virus (Geminivirus) in Vanuatu

Cited by 9 publications

References 7 publications

Coconut and other palm trees

Coconut and other palm trees

A phylogenetic and evolutionary justification for three genera of Geminiviridae

Spatial and Temporal Distribution of Geminiviruses in Leafhoppers of the Genus Cicadulina Monitored by Conventional and Quantitative Polymerase Chain Reaction

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