Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Novel Isolate of Bean Common Mosaic Virus from Crownvetch (Securigera varia L. Lassen)

Version 1 : Received: 25 April 2023 / Approved: 25 April 2023 / Online: 25 April 2023 (10:16:22 CEST)

How to cite: Mihálik, D.; Grešíková, S.; Hančinský, R.; Cejnar, P.; Havrlentová, M.; Kraic, J. Novel Isolate of Bean Common Mosaic Virus from Crownvetch (Securigera varia L. Lassen). Preprints 2023, 2023040918. https://doi.org/10.20944/preprints202304.0918.v1 Mihálik, D.; Grešíková, S.; Hančinský, R.; Cejnar, P.; Havrlentová, M.; Kraic, J. Novel Isolate of Bean Common Mosaic Virus from Crownvetch (Securigera varia L. Lassen). Preprints 2023, 2023040918. https://doi.org/10.20944/preprints202304.0918.v1

Abstract

Bean common mosaic virus from the genus Potyvirus has a wide range of hosts and a very negative impact on cultivated crops from the genus Phaseolus. The risk of viral infection of economically important crops increases even if the carriers of the virus are related plant species growing on agroecological interfaces. Such plant species have emerged as new hosts for BCMV, usually harboring novel genetic variants of the virus. A novel genetic variant of BCMV was isolated from a symptomatic crownvetch plant, where the presence of this virus was confirmed by Western-blotting analysis and by amino acid identities in peptide fragments of CI, HC-pro, and CP proteins using the nanoLC-ESI-Q-TOF. The novel BCMV SVK isolate differed from the most genetically similar one in 0.91% of nucleotides and 1.55% of amino acids. The highest number of amino acid substitutions (8.8% of amino acids) was in the P1 protein, followed by CP (2.44% of amino acids). Minor substitutions were in Hc-pro, CI, and Nib proteins. The symptomatic crownvetch plant was confirmed as a new host and carrier of the novel BCMV isolate.

Keywords

BCMV; genome; proteome; amino acid substitutions; novel host

Subject

Biology and Life Sciences, Virology

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