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Genetic Variation of Citrus Tristeza VirusIsolates from California and Spain: Evidence for Mixed Infections and Recombination
TLDR
Examination of the population structure and genetic variation of four genomic regions within and between 30 Citrus tristeza virus isolates from Spain and California suggested that the genomes of some CTV sequence variants originated by recombination events between diverged sequence variants.
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Closterovirus bipolar virion: evidence for initiation of assembly by minor coat protein and its restriction to the genomic RNA 5' region.
The long flexuous virions of the Closteroviridae have a unique bipolar architecture incorporating two coat proteins, with most of the helical nucleocapsid encapsidated by the major coat protein (CP)…
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The p23 Protein of Citrus Tristeza Virus Controls Asymmetrical RNA Accumulation
TLDR
The p23 protein controls asymmetric accumulation of CTV RNAs by downregulating negative-stranded RNA accumulation and indirectly increases expression of 3′ genes.
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Polymorphism of the 5′ terminal region of Citrus tristeza virus (CTV) RNA: Incidence of three sequence types in isolates of different origin and pathogenicity
TLDR
None of the sequence types could be traced to a precise geographic area, as all types were detected in isolates from at least nine of the 12 countries from which samples were taken.
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Molecular variability of the 5'- and 3'-terminal regions of citrus tristeza virus RNA.
TLDR
The presence of a conserved putative "zinc-finger" domain adjacent to a basic region in p23, the predicted product of ORF 11, suggests that this protein might act as a regulatory factor during virus replication.
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Closterovirus encoded HSP70 homolog and p61 in addition to both coat proteins function in efficient virion assembly.
TLDR
The involvement of gene products of Citrus tristeza virus (CTV) in virion formation was examined and it was found that the chaperone-like protein plus the p61 and both coat proteins were required for efficient virion assembly.
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Taxonomy of the order Mononegavirales: update 2019
TLDR
The updated taxonomy of the order Mononegavirales is presented as now accepted by the International Committee on Taxonomy of Viruses (ICTV).
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Amplification of Citrus tristeza virus from a cDNA clone and infection of citrus trees.
TLDR
Fulfilling Koch's postulates of the first pure culture of CTV in plants suggested that the major genotype of the CTV T36 population is the primary determinant of the symptom phenotype.
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Characterization of the cis-acting elements controlling subgenomic mRNAs of citrus tristeza virus: production of positive- and negative-stranded 3'-terminal and positive-stranded 5'-terminal RNAs.
TLDR
Citrus tristeza virus has an approximately 20-kb positive-sense RNA genome with two 5' ORFs translated from the genomic RNA and 10 3' genes expressed via nine or ten 3'-terminal subgenomic RNAs, which theoretically could produce 30-33 species of RNAs in infected cells.
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New defective RNAs from citrus tristeza virus: evidence for a replicase-driven template switching mechanism in their generation.
TLDR
Two of the CTV isolates that differed greatly in their pathogenicity contained an identical D- RNA, suggesting that it is unlikely that this D-RNA is involved in symptom modulation, which may be caused by another factor.
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