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5 cze 2023 · According to the evolutionary relationships between hallmark viral genes, plant viruses are classified into two realms, Monodnaviria and Riboviria, which include single-strand DNA (ssDNA) viruses and RNA viruses, respectively.
12 wrz 2022 · Plant viruses encode genomes that consist of single-stranded (ss) or double-stranded (ds) DNA or RNA segment(s) with positive-, negative-, or ambisense polarity (Koonin et al. 2021). The genetic material of plant viruses is generally encapsidated in virions by capsid protein(s) (Callaway et al. 2001). Due to the limited coding capacity, plant ...
21 paź 2011 · DNA-B encodes two genes required for plant virus movement: BC1, movement protein (cell to cell); BV1, nuclear shuttle protein. C, complementary-sense open reading frames (ORFs); V, virus-sense ORFs. Black box, location of the nucleotide sequence common to both genomic components. Light grey boxes designate ORFs.
1 sty 2020 · Viruses are classified into six major groups based on nature and genome organization as double-stranded DNA (dsDNA), single-stranded DNA (ssDNA), dsRNA, reverse-transcription (RT) viruses, negative-sense ssRNA (–ssRNA) and positive-sense ssRNA (+ssRNA) viruses.
Plant viruses are viruses that have the potential to affect plants. Like all other viruses, plant viruses are obligate intracellular parasites that do not have the molecular machinery to replicate without a host. Plant viruses can be pathogenic to vascular plants ("higher plants").
The extent of movement of genetic material across viruses can be seen with the recently named Amalgaviridae, a double-stranded RNA monopartite virus with 2 open reading frames, an RdRp and another gene.
16 lip 2019 · This study provides compelling evidence that conditional interactions of plant viruses, plant genotypes and the environment modulate the outcome of symbiosis.
