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Journal articles on the topic 'Marnaviridae'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Wang, Han, Anna Munke, Siqi Li, Yuji Tomaru, and Kenta Okamoto. "Structural Insights into Common and Host-Specific Receptor-Binding Mechanisms in Algal Picorna-like Viruses." Viruses 14, no. 11 (2022): 2369. http://dx.doi.org/10.3390/v14112369.

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Marnaviridae viruses are abundant algal viruses that regulate the dynamics of algal blooms in aquatic environments. They employ a narrow host range because they merely lyse their algal host species. This host-specific lysis is thought to correspond to the unique receptor-binding mechanism of the Marnaviridae viruses. Here, we present the atomic structures of the full and empty capsids of Chaetoceros socialis forma radians RNA virus 1 built-in 3.0 Å and 3.1 Å cryo-electron microscopy maps. The empty capsid structure and the structural variability provide insights into its assembly and uncoating

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2

Luo, Jingfei, Fan Zhang, Chengyan Zhou, et al. "Meta-Transcriptomic Analysis Reveals Novel RNA Viruses in Polychaetes Perinereis." Veterinary Sciences 11, no. 6 (2024): 273. http://dx.doi.org/10.3390/vetsci11060273.

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Perinereis species are essential benthonic animals in coastal ecosystems and have significant roles as live feed in aquaculture, owing to their high-protein and low-fat nutritional profile. Despite their ecological importance, the viral communities associated with these organisms need to be better understood. In this study, we generated 2.6 × 108 reads using meta-transcriptomic sequencing and de novo assembled 5.3 × 103 virus-associated contigs. We identified 12 novel RNA viruses from two species, Perinereis aibuhitensis and P. wilsoni, which were classified into four major viral groups: Picob

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3

Potapov, Sergey, Anna Gorshkova, Andrey Krasnopeev, et al. "RNA-Seq Virus Fraction in Lake Baikal and Treated Wastewaters." International Journal of Molecular Sciences 24, no. 15 (2023): 12049. http://dx.doi.org/10.3390/ijms241512049.

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In this study, we analyzed the transcriptomes of RNA and DNA viruses from the oligotrophic water of Lake Baikal and the effluent from wastewater treatment plants (WWTPs) discharged into the lake from the towns of Severobaikalsk and Slyudyanka located on the lake shores. Given the uniqueness and importance of Lake Baikal, the issues of biodiversity conservation and the monitoring of potential virological hazards to hydrobionts and humans are important. Wastewater treatment plants discharge treated effluent directly into the lake. In this context, the identification and monitoring of allochthono

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4

Han, Zhenzhi, Jinbo Xiao, Yang Song, et al. "The Husavirus Posa-Like Viruses in China, and a New Group of Picornavirales." Viruses 12, no. 9 (2020): 995. http://dx.doi.org/10.3390/v12090995.

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Novel posa-like viral genomes were first identified in swine fecal samples using metagenomics and were designated as unclassified viruses in the order Picornavirales. In the present study, nine husavirus strains were identified in China. Their genomes share 94.1–99.9% similarity, and alignment of these nine husavirus strains identified 697 nucleotide polymorphism sites across their full-length genomes. These nine strains were directly clustered with the Husavirus 1 lineage, and their genomic arrangement showed similar characteristics. These posa-like viruses have undergone a complex evolutiona

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5

Chase, Emily E., Sonia Monteil-Bouchard, Angélique Gobet, Felana H. Andrianjakarivony, Christelle Desnues, and Guillaume Blanc. "A High Rate Algal Pond Hosting a Dynamic Community of RNA Viruses." Viruses 13, no. 11 (2021): 2163. http://dx.doi.org/10.3390/v13112163.

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Despite a surge of RNA virome sequencing in recent years, there are still many RNA viruses to uncover—as indicated by the relevance of viral dark matter to RNA virome studies (i.e., putative viruses that do not match to taxonomically identified viruses). This study explores a unique site, a high-rate algal pond (HRAP), for culturing industrially microalgae, to elucidate new RNA viruses. The importance of viral-host interactions in aquatic systems are well documented, and the ever-expanding microalgae industry is no exception. As the industry becomes a more important source of sustainable plast

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6

Wolf, Yuri I., Sukrit Silas, Yongjie Wang, et al. "Doubling of the known set of RNA viruses by metagenomic analysis of an aquatic virome." Nature Microbiology 5, no. 10 (2020): 1262–70. http://dx.doi.org/10.1038/s41564-020-0755-4.

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Abstract RNA viruses in aquatic environments remain poorly studied. Here, we analysed the RNA virome from approximately 10 l water from Yangshan Deep-Water Harbour near the Yangtze River estuary in China and identified more than 4,500 distinct RNA viruses, doubling the previously known set of viruses. Phylogenomic analysis identified several major lineages, roughly, at the taxonomic ranks of class, order and family. The 719-member-strong Yangshan virus assemblage is the sister clade to the expansive class Alsuviricetes and consists of viruses with simple genomes that typically encode only RNA-

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7

Zell, Roland, Marco Groth, Lukas Selinka, and Hans-Christoph Selinka. "Diversity of Picorna-Like Viruses in the Teltow Canal, Berlin, Germany." Viruses 16, no. 7 (2024): 1020. http://dx.doi.org/10.3390/v16071020.

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The viromes of freshwater bodies are underexplored. The Picornavirales order, with 371 acknowledged species, is one of the most expansive and diverse groups of eukaryotic RNA viruses. In this study, we add 513 picorna-like viruses to the assemblage of more than 2000 unassigned picorna-like viruses. Our set of the aquatic Picornavirales virome of the Teltow Canal in Berlin, Germany, consists of 239 complete and 274 partial genomes. This urban freshwater body is characterized by the predominance of marna-like viruses (30.8%) and dicistro-like viruses (19.1%), whereas picornaviruses, iflaviruses,

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8

Lang, Andrew S., Marli Vlok, Alexander I. Culley, Curtis A. Suttle, Yoshitake Takao, and Yuji Tomaru. "ICTV Virus Taxonomy Profile: Marnaviridae 2021." Journal of General Virology 102, no. 8 (2021). http://dx.doi.org/10.1099/jgv.0.001633.

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The family Marnaviridae comprises small non-enveloped viruses with positive-sense RNA genomes of 8.6–9.6 kb. Isolates infect marine single-celled eukaryotes (protists) that come from diverse lineages. Some members are known from metagenomic studies of ocean virioplankton, with additional unclassified viruses described from metagenomic datasets derived from marine and freshwater environments. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Marnaviridae, which is available at ictv.global/report/marnaviridae.

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9

Vlok, Marli, Andrew S. Lang, and Curtis A. Suttle. "Application of a sequence-based taxonomic classification method to uncultured and unclassified marine single-stranded RNA viruses in the order Picornavirales." Virus Evolution 5, no. 2 (2019). http://dx.doi.org/10.1093/ve/vez056.

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Abstract Metagenomics has altered our understanding of microbial diversity and ecology. This includes its applications to viruses in marine environments that have demonstrated their enormous diversity. Within these are RNA viruses, many of which share genetic features with members of the order Picornavirales; yet, very few of these have been taxonomically classified. The only recognized family of marine RNA viruses is the Marnaviridae, which was founded based on discovery and characterization of the species Heterosigma akashiwo RNA virus. Two additional genera of marine RNA viruses, Labyrnavir

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10

Xu, Ailan, Shan Xu, Qihang Tu, et al. "A novel virus in the family Marnaviridae as a potential pathogen of Penaeus vannamei glass post-larvae disease." Virus Research, December 2022, 199026. http://dx.doi.org/10.1016/j.virusres.2022.199026.

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11

Charon, Justine, Shauna Murray, and Edward C. Holmes. "Revealing RNA virus diversity and evolution in unicellular algae transcriptomes." Virus Evolution 7, no. 2 (2021). http://dx.doi.org/10.1093/ve/veab070.

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Abstract Remarkably little is known about the diversity and evolution of RNA viruses in unicellular eukaryotes. We screened a total of 570 transcriptomes from the Marine Microbial Eukaryote Transcriptome Sequencing Project that encompasses a wide diversity of microbial eukaryotes, including most major photosynthetic lineages (i.e. the microalgae). From this, we identified thirty new and divergent RNA virus species, occupying a range of phylogenetic positions within the overall diversity of RNA viruses. Approximately one-third of the newly described viruses comprised single-stranded positive-se

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12

Shen, Lixin, Ziqiang Zhang, Rui Wang, Shuang Wu, Yongjie Wang, and Songzhe Fu. "Metatranscriptomic data mining together with microfluidic card uncovered the potential pathogens and seasonal RNA viral ecology in a drinking water source." Journal of Applied Microbiology, December 21, 2023. http://dx.doi.org/10.1093/jambio/lxad310.

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Abstract Aims Despite metatranscriptomics becoming an emerging tool for pathogen surveillance, very little is known about the feasibility of this approach for understanding the fate of human-derived pathogens in drinking water sources. Methods and results We conducted multiplexed microfluidic cards and metatranscriptomic sequencing of the drinking water source in a border city of North Korea in four seasons. Microfluidic card detected norovirus, hepatitis B virus (HBV), enterovirus and Vibrio cholerae in the water. Phylogenetic analyses showed that environmental-derived sequences from noroviru

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13

Munke, Anna, Kei Kimura, Yuji Tomaru, and Kenta Okamoto. "Capsid Structure of a Marine Algal Virus of the Order Picornavirales." Journal of Virology 94, no. 9 (2020). http://dx.doi.org/10.1128/jvi.01855-19.

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ABSTRACT The order Picornavirales includes viruses that infect different kinds of eukaryotes and that share similar properties. The capsid proteins (CPs) of viruses in the order that infect unicellular organisms, such as algae, presumably possess certain characteristics that have changed little over the course of evolution, and thus these viruses may resemble the Picornavirales ancestor in some respects. Herein, we present the capsid structure of Chaetoceros tenuissimus RNA virus type II (CtenRNAV-II) determined using cryo-electron microscopy at a resolution of 3.1 Å, the first alga virus belo

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14

Carella, Francesca, Patricia Prado, Gionata De Vico, et al. "A widespread picornavirus affects the hemocytes of the noble pen shell (Pinna nobilis), leading to its immunosuppression." Frontiers in Veterinary Science 10 (December 13, 2023). http://dx.doi.org/10.3389/fvets.2023.1273521.

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IntroductionThe widespread mass mortality of the noble pen shell (Pinna nobilis) has occurred in several Mediterranean countries in the past 7 years. Single-stranded RNA viruses affecting immune cells and leading to immune dysfunction have been widely reported in human and animal species. Here, we present data linking P. nobilis mass mortality events (MMEs) to hemocyte picornavirus (PV) infection. This study was performed on specimens from wild and captive populations.MethodsWe sampled P. nobilis from two regions of Spain [Catalonia (24 animals) and Murcia (four animals)] and one region in Ita

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15

Lim, Shen Jean, Alexandra Rogers, Karyna Rosario, et al. "Diverse ssRNA viruses associated with Karenia brevis harmful algal blooms in southwest Florida." mSphere, March 20, 2025. https://doi.org/10.1128/msphere.01090-24.

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ABSTRACT Harmful algal blooms (HABs) caused by the dinoflagellate Karenia brevis frequently occur in the eastern Gulf of Mexico, where they negatively impact the environment, human health, and economy. Very little is known about viruses associated with K. brevis blooms, although viral infection of other HAB-forming phytoplankton species can play an important role in bloom dynamics. We used viral metagenomics to identify viruses in 11 pooled seawater samples collected from southwest Florida, USA, in 2021 during a severe, spatiotemporally dynamic K. brevis bloom. Assembled viral genomes were sim

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