Metatranscriptome analysis of symptomatic bitter apple plants revealed mixed viral infections with a putative novel polerovirus

Abstract Background Next-generation Sequencing (NGS) combined with bioinformatic analyses constitutes a powerful approach for identifying and characterizing previously unknown viral genomes. In this study, leaf samples from bitter apple plants (Citrullus colocynthis (L.) Schrad) exhibiting symptoms...

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Main Authors: Shahrbanou Ghorani, Hossein Massumi, Samin H. Farhangi, Mehdi Mansouri, Jahangir Heydarnejad, Akbar Hosseinipour
Format: Article
Language:English
Published: BMC 2024-02-01
Series:BMC Genomics
Subjects:
Online Access:https://doi.org/10.1186/s12864-024-10057-z
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author Shahrbanou Ghorani
Hossein Massumi
Samin H. Farhangi
Mehdi Mansouri
Jahangir Heydarnejad
Akbar Hosseinipour
author_facet Shahrbanou Ghorani
Hossein Massumi
Samin H. Farhangi
Mehdi Mansouri
Jahangir Heydarnejad
Akbar Hosseinipour
author_sort Shahrbanou Ghorani
collection DOAJ
description Abstract Background Next-generation Sequencing (NGS) combined with bioinformatic analyses constitutes a powerful approach for identifying and characterizing previously unknown viral genomes. In this study, leaf samples from bitter apple plants (Citrullus colocynthis (L.) Schrad) exhibiting symptoms such as dwarfing, leaf crinkling, and chlorosis were collected from the southern part of Kerman province, Iran. Results Putative infecting viruses were identified through de novo assembly of sequencing reads using various tools, followed by BLAST analysis. Complete genomes for Squash vein yellowing virus (SqVYV), Citrus-associated rhabdovirus (CiaRV), and a novel polerovirus-related strain termed Bitter apple aphid-borne yellows virus (BaABYV) were assembled and characterized. Additionally, a partial genome for Watermelon mosaic virus (WMV) was assembled. The genomic organization of the BaABYV was determined to be 5’-ORF0-ORF1-ORF1,2-ORF3a-ORF3-ORF3,5-ORF4-3’. Amino acid sequence identities for inferred proteins (P0 and P1, P1,2) with known poleroviruses were found to be the 90% species delineation limit, implying that BaABYV should be considered a new member of the genus Polerovirus. Recombination events were observed in the BaABYV and WMV strains; such events were not found in the CiaRV strain. Conclusions Molecular evidence from this study suggests that C. colocynthis is a reservoir host of several plant viruses. Among them, BaABYV is proposed as a new member of the genus Polerovirus. Furthermore, the CiaRV strain has been reported for the first time from Iran.
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spelling doaj.art-287724d3db0043b9b3cc94774712fee32024-03-05T17:47:00ZengBMCBMC Genomics1471-21642024-02-0125111410.1186/s12864-024-10057-zMetatranscriptome analysis of symptomatic bitter apple plants revealed mixed viral infections with a putative novel polerovirusShahrbanou Ghorani0Hossein Massumi1Samin H. Farhangi2Mehdi Mansouri3Jahangir Heydarnejad4Akbar Hosseinipour5Department of Plant Protection, College of Agriculture, Shahid Bahonar University of KermanDepartment of Plant Protection, College of Agriculture, Shahid Bahonar University of KermanAnimal Breeding and Genomics, Wageningen University & ResearchDepartment of Agricultural Biotechnology, College of Agriculture, Shahid Bahonar University of KermanDepartment of Plant Protection, College of Agriculture, Shahid Bahonar University of KermanDepartment of Plant Protection, College of Agriculture, Shahid Bahonar University of KermanAbstract Background Next-generation Sequencing (NGS) combined with bioinformatic analyses constitutes a powerful approach for identifying and characterizing previously unknown viral genomes. In this study, leaf samples from bitter apple plants (Citrullus colocynthis (L.) Schrad) exhibiting symptoms such as dwarfing, leaf crinkling, and chlorosis were collected from the southern part of Kerman province, Iran. Results Putative infecting viruses were identified through de novo assembly of sequencing reads using various tools, followed by BLAST analysis. Complete genomes for Squash vein yellowing virus (SqVYV), Citrus-associated rhabdovirus (CiaRV), and a novel polerovirus-related strain termed Bitter apple aphid-borne yellows virus (BaABYV) were assembled and characterized. Additionally, a partial genome for Watermelon mosaic virus (WMV) was assembled. The genomic organization of the BaABYV was determined to be 5’-ORF0-ORF1-ORF1,2-ORF3a-ORF3-ORF3,5-ORF4-3’. Amino acid sequence identities for inferred proteins (P0 and P1, P1,2) with known poleroviruses were found to be the 90% species delineation limit, implying that BaABYV should be considered a new member of the genus Polerovirus. Recombination events were observed in the BaABYV and WMV strains; such events were not found in the CiaRV strain. Conclusions Molecular evidence from this study suggests that C. colocynthis is a reservoir host of several plant viruses. Among them, BaABYV is proposed as a new member of the genus Polerovirus. Furthermore, the CiaRV strain has been reported for the first time from Iran.https://doi.org/10.1186/s12864-024-10057-zCitrullus colocynthisNext-generation sequencingRecombinationBitter apple aphid-borne yellows virus
spellingShingle Shahrbanou Ghorani
Hossein Massumi
Samin H. Farhangi
Mehdi Mansouri
Jahangir Heydarnejad
Akbar Hosseinipour
Metatranscriptome analysis of symptomatic bitter apple plants revealed mixed viral infections with a putative novel polerovirus
BMC Genomics
Citrullus colocynthis
Next-generation sequencing
Recombination
Bitter apple aphid-borne yellows virus
title Metatranscriptome analysis of symptomatic bitter apple plants revealed mixed viral infections with a putative novel polerovirus
title_full Metatranscriptome analysis of symptomatic bitter apple plants revealed mixed viral infections with a putative novel polerovirus
title_fullStr Metatranscriptome analysis of symptomatic bitter apple plants revealed mixed viral infections with a putative novel polerovirus
title_full_unstemmed Metatranscriptome analysis of symptomatic bitter apple plants revealed mixed viral infections with a putative novel polerovirus
title_short Metatranscriptome analysis of symptomatic bitter apple plants revealed mixed viral infections with a putative novel polerovirus
title_sort metatranscriptome analysis of symptomatic bitter apple plants revealed mixed viral infections with a putative novel polerovirus
topic Citrullus colocynthis
Next-generation sequencing
Recombination
Bitter apple aphid-borne yellows virus
url https://doi.org/10.1186/s12864-024-10057-z
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