A novel weevil-transmitted tymovirus found in mixed infection on hollyhock

Abstract Leaves of hollyhock (Alcea rosea) exhibiting vein chlorosis and yellow mosaic symptoms were collected at public sites in Lausanne and Nyon, two cities of western Switzerland. Diagnostic methods untangled in samples from both sites the mixed infections of a novel isometric virus, tentatively...

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Main Authors: Mathieu Mahillon, Justine Brodard, Isabelle Kellenberger, Arnaud G. Blouin, Olivier Schumpp
Format: Article
Language:English
Published: BMC 2023-01-01
Series:Virology Journal
Subjects:
Online Access:https://doi.org/10.1186/s12985-023-01976-6
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author Mathieu Mahillon
Justine Brodard
Isabelle Kellenberger
Arnaud G. Blouin
Olivier Schumpp
author_facet Mathieu Mahillon
Justine Brodard
Isabelle Kellenberger
Arnaud G. Blouin
Olivier Schumpp
author_sort Mathieu Mahillon
collection DOAJ
description Abstract Leaves of hollyhock (Alcea rosea) exhibiting vein chlorosis and yellow mosaic symptoms were collected at public sites in Lausanne and Nyon, two cities of western Switzerland. Diagnostic methods untangled in samples from both sites the mixed infections of a novel isometric virus, tentatively named “Alcea yellow mosaic virus” (AYMV) with the carlavirus Gaillardia latent virus. A new potyvirus was also identified in samples from Nyon. A combination of Illumina, Nanopore and Sanger sequencing was necessary to assemble the full-length genome of AYMV, revealing an exceptionally high cytidine content and other features typically associated with members of the genus Tymovirus. The host range of AYMV was found to be restricted to mallows, including ornamentals as well as economically important plants. Phylogenetic analyses further showed that AYMV belongs to a Tymovirus subclade that also gathers the other mallow-infecting members. The virus was readily transmitted by sap inoculation, and the weevil species Aspidapion radiolus was evidenced as a vector. Transmission assays using another weevil or other insect species did not succeed, and seed transmission was not observed.
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spelling doaj.art-5557ed6c9aa2444c9899ab6e6308f4832023-02-05T12:04:47ZengBMCVirology Journal1743-422X2023-01-0120111010.1186/s12985-023-01976-6A novel weevil-transmitted tymovirus found in mixed infection on hollyhockMathieu Mahillon0Justine Brodard1Isabelle Kellenberger2Arnaud G. Blouin3Olivier Schumpp4Research Group Virology, Bacteriology and Phytoplasmology, AgroscopeResearch Group Virology, Bacteriology and Phytoplasmology, AgroscopeResearch Group Virology, Bacteriology and Phytoplasmology, AgroscopeResearch Group Virology, Bacteriology and Phytoplasmology, AgroscopeResearch Group Virology, Bacteriology and Phytoplasmology, AgroscopeAbstract Leaves of hollyhock (Alcea rosea) exhibiting vein chlorosis and yellow mosaic symptoms were collected at public sites in Lausanne and Nyon, two cities of western Switzerland. Diagnostic methods untangled in samples from both sites the mixed infections of a novel isometric virus, tentatively named “Alcea yellow mosaic virus” (AYMV) with the carlavirus Gaillardia latent virus. A new potyvirus was also identified in samples from Nyon. A combination of Illumina, Nanopore and Sanger sequencing was necessary to assemble the full-length genome of AYMV, revealing an exceptionally high cytidine content and other features typically associated with members of the genus Tymovirus. The host range of AYMV was found to be restricted to mallows, including ornamentals as well as economically important plants. Phylogenetic analyses further showed that AYMV belongs to a Tymovirus subclade that also gathers the other mallow-infecting members. The virus was readily transmitted by sap inoculation, and the weevil species Aspidapion radiolus was evidenced as a vector. Transmission assays using another weevil or other insect species did not succeed, and seed transmission was not observed.https://doi.org/10.1186/s12985-023-01976-6TymovirusTymoviridaeWeevilHollyhockMixed infectionCarlavirus
spellingShingle Mathieu Mahillon
Justine Brodard
Isabelle Kellenberger
Arnaud G. Blouin
Olivier Schumpp
A novel weevil-transmitted tymovirus found in mixed infection on hollyhock
Virology Journal
Tymovirus
Tymoviridae
Weevil
Hollyhock
Mixed infection
Carlavirus
title A novel weevil-transmitted tymovirus found in mixed infection on hollyhock
title_full A novel weevil-transmitted tymovirus found in mixed infection on hollyhock
title_fullStr A novel weevil-transmitted tymovirus found in mixed infection on hollyhock
title_full_unstemmed A novel weevil-transmitted tymovirus found in mixed infection on hollyhock
title_short A novel weevil-transmitted tymovirus found in mixed infection on hollyhock
title_sort novel weevil transmitted tymovirus found in mixed infection on hollyhock
topic Tymovirus
Tymoviridae
Weevil
Hollyhock
Mixed infection
Carlavirus
url https://doi.org/10.1186/s12985-023-01976-6
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