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12-07-2022 | Annotated Sequence Record

Two new umbravirus-like associated RNAs (ulaRNAs) discovered in maize and johnsongrass from Ecuador

Authors: Diego F. Quito-Avila, Edison G. Reyes-Proaño, Alma Mendoza, Paolo Margaria, Wulf Menzel, Sayanta Bera, Anne E. Simon

Published in: Archives of Virology | Issue 10/2022

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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Title: Two new umbravirus-like associated RNAs (ulaRNAs) discovered in maize and johnsongrass from Ecuador
Authors: Diego F. Quito-Avila
Edison G. Reyes-Proaño
Alma Mendoza
Paolo Margaria
Wulf Menzel
Sayanta Bera
Anne E. Simon
Publication date: 12-07-2022
Publisher: Springer Vienna
Published in: Archives of Virology / Issue 10/2022
Print ISSN: 0304-8608
Electronic ISSN: 1432-8798
DOI: https://doi.org/10.1007/s00705-022-05525-4

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