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Family Flexiviridae: a case study in virion and genome plasticity.
TLDR
A common evolutionary ancestor for the family Tymoviridae and the two distinct evolutionary clusters of the Flexiviridae is postulate, i.e., a plant virus with a polyadenylated genome, filamentous virions, and a triple gene block of movement proteins, which would have generated a very diverse group of plant and fungal viruses.
The new plant virus family Flexiviridae and assessment of molecular criteria for species demarcation
The new plant virus family Flexiviridae is described. The family is named because its members have flexuous virions and it includes the existing genera Allexivirus, Capillovirus, Carlavirus,
The family Closteroviridae revised
TLDR
The mealybug-transmitted species have been separated from the genus Closterovirus and accommodated in a new genus named Ampelovirus (from ampelos, Greek for grapevine), and the family now comprises three genera.
IDENTIFICATION OF DNA SEQUENCES RELATED TO XYLELLA FASTIDIOSA IN OLEANDER, ALMOND AND OLIVE TREES EXHIBITING LEAF SCORCH SYMPTOMS IN APULIA (SOUTHERN ITALY)
TLDR
Molecular tests extended to almond and oleander trees with leaf scorching symptoms, growing next to diseased olive orchards, were positive for X. fastidiosa, and studies aimed at isolating the bacterium, determining the strain, evaluating its pathogenicity, and identifying the putative local vector are currently in progress.
DIRECTORY OF VIRUS AND VIRUS-LIKE DISEASES OF THE GRAPEVINE AND THEIR AGENTS
TLDR
The importance of the grapevine industry and the magnitude of the problems caused by these pathogens has generated wide interest which has fostered intensive research which has been especially active at the international scale from the late 1950’s onwards.
Molecular biology of tombusviridae.
TLDR
This chapter emphasizes the developments in the molecular biology tombusviridae, and the significant results of the studies on this subject are reviewed and discussed.
Foveavirus, a new plant virus genus
SummaryFoveavirus is a novel genus of plant viruses with helically constructed filamentous particles ca. 800 nm long, typified by apple stem pitting virus (ASPV). Virions do not contain lipids or
TAXONOMIC REVISION OF THE FAMILY CLOSTEROVIRIDAE WITH SPECIAL REFERENCE TO THE GRAPEVINE LEAFROLL-ASSOCIATED MEMBERS OF THE GENUS AMPELOVIRUS AND THE PUTATIVE SPECIES UNASSIGNED TO THE FAMILY
TLDR
A comparative examination of the amino acid sequence divergence of three taxonomically relevant genes supports the notion that they are all genetically divergent variants of a single species, GLRaV-4, and the establishment of a fourth genus within the family Closteroviridae is justified.
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