AI Article Synopsis
- - Two new umbravirus-like associated RNAs (ulaRNAs) were discovered in maize and Johnsongrass samples from Ecuador, with complete sequences of 3,053 and 3,025 nucleotides, respectively.
- - The genomes of these ulaRNAs show 58% identity to each other and 28-60% identity to related viruses, indicating they have a shared evolutionary background.
- - Phylogenetic analysis suggests that these ulaRNAs are part of a monophyletic lineage of grass-infecting viruses, sharing a recent common ancestor with ulaRNAs found in sugarcane and maize, and exhibiting common features typical of umbraviruses.
Article Abstract
Two new umbravirus-like associated RNAs (ulaRNAs) were found, respectively, in maize and Johnsongrass samples from Ecuador. The complete sequences consist of 3,053 and 3,025 nucleotides, respectively, and contain four open reading frames (ORFs). Their genome sequences were 58% identical to each other and 28 to 60% identical to the most closely related viruses. Phylogenetic analysis using full genome sequences and amino acid sequence of the RNA-dependent-RNA polymerase (RdRp) placed both sequences in a clade sharing the most recent common ancestor with ulaRNAs from sugarcane and maize, suggesting that they belong to a monophyletic grass-infecting lineage. Their terminal regions exhibit features common to umbraviruses and ulaRNAs.
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Article Synopsis
- - Two new umbravirus-like associated RNAs (ulaRNAs) were discovered in maize and Johnsongrass samples from Ecuador, with complete sequences of 3,053 and 3,025 nucleotides, respectively.
- - The genomes of these ulaRNAs show 58% identity to each other and 28-60% identity to related viruses, indicating they have a shared evolutionary background.
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