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First Detection and Genome Characterization of a New RNA Virus, Hibiscus Betacarmovirus, and a New DNA Virus, Hibiscus Soymovirus, Naturally Infecting Hibiscus spp. in Hawaii

Hibiscus ( spp., family Malvaceae) leaves exhibiting symptoms of mosaic, ringspot, and chlorotic spots were collected in 2020 on Oahu, HI. High-throughput sequencing analysis was conducted on ribosomal RNA-depleted composite RNA samples extracted from symptomatic leaves. About 77 million paired-end...

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Bibliographic Details
Published in:Viruses 2022-12, Vol.15 (1), p.90
Main Authors: Wang, Xupeng, Larrea-Sarmiento, Adriana E, Olmedo-Velarde, Alejandro, Kong, Alexandra, Borth, Wayne, Suzuki, Jon Y, Wall, Marisa M, Melzer, Michael J, Hu, John
Format: Article
Language:English
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Summary:Hibiscus ( spp., family Malvaceae) leaves exhibiting symptoms of mosaic, ringspot, and chlorotic spots were collected in 2020 on Oahu, HI. High-throughput sequencing analysis was conducted on ribosomal RNA-depleted composite RNA samples extracted from symptomatic leaves. About 77 million paired-end reads and 161,970 contigs were generated after quality control, trimming, and de novo assembly. Contig annotation with BLASTX/BLASTN searches revealed a sequence (contig 1) resembling the RNA virus, hibiscus chlorotic ringspot virus (genus ), and one (contig 2) resembling the DNA virus, peanut chlorotic streak virus (genus ). Further bioinformatic analyses of the complete viral genome sequences indicated that these viruses, with proposed names of hibiscus betacarmovirus and hibiscus soymovirus, putatively represent new species in the genera and , respectively. RT-PCR using specific primers, designed based on the retrieved contigs, coupled with Sanger sequencing, further confirmed the presence of these viruses. An additional 54 hibiscus leaf samples from other locations on Oahu were examined to determine the incidence and distribution of these viruses.
ISSN:1999-4915
1999-4915
DOI:10.3390/v15010090