Open AccessDOI
Leviviricetes: expanding and restructuring the taxonomy of bacteria-infecting single-stranded RNA viruses.
Julie Callanan,Stephen R. Stockdale,Evelien M. Adriaenssens,Jens H. Kuhn,Janis Rumnieks,Mark J. Pallen,Mark J. Pallen,Mark J. Pallen,Andrey N. Shkoporov,Lorraine A. Draper,R. Paul Ross,Colin Hill +11 more
- Vol. 7, Iss: 11
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TLDR
The Leviviricetes taxonomy as discussed by the authors was proposed by the International Committee on Taxonomy of Viruses (ICT) in 2019 and was validated by the ICT in 2019.Abstract:
The vast majority of described prokaryotic viruses have double-stranded or single-stranded DNA or double-stranded RNA genomes. Until 2020, a mere four prokaryotic single-stranded, positive-sense RNA viruses have been classified in two genera (Riboviria; Lenarviricota; Allassoviricetes; Leviviridae). Several recent metagenomic and metatranscriptomic studies revealed a vastly greater diversity of these viruses in prokaryotic soil communities than ever anticipated. Phylogenetic analysis of these newly discovered viruses prompted the reorganization of class Allassoviricetes, now renamed Leviviricetes, to include two orders, Norzivirales and Timlovirales, and a total of six families, 428 genera and 882 species. Here we outline the new taxonomy of Leviviricetes, approved and ratified in 2021 by the International Committee on Taxonomy of Viruses, and describe open-access hidden Markov models to accommodate the anticipated identification and future classification of hundreds, if not thousands, of additional class members into this new taxonomic framework.read more
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Cryptic and abundant marine viruses at the evolutionary origins of Earth’s RNA virome
Ahmed A. Zayed,James M. Wainaina,Guillermo Domínguez-Huerta,Eric Pelletier,Jiarong Guo,Mohamed Mohssen,Funing Tian,Akbar Adjie Pratama,Benjamin Bolduc,Olivier Zablocki,Dylan R. Cronin,Lindsey M. Solden,Erwan Delage,Adriana Alberti,Jean-Marc Aury,Quentin Carradec,Corinne Da Silva,Karine Labadie,Julie Poulain,Hans-Joachim Ruscheweyh,Guillem Salazar,Elan A Shatoff,Ralf Bundschuh,Kurt Fredrick,Laura Kubatko,S. Chaffron,Alexander I. Culley,Shinichi Sunagawa,Jens H. Kuhn,Matthew B. Sullivan,Silvia G. Acinas,Marcel Babin,Peer Bork,Emmanuel Boss,Chris Bowler,Guy Cochrane,Colomban de Vargas,Gabriel Gorsky,Lionel Guidi,Nigel Grimsley,Pascal Hingamp,Daniele Iudicone,Olivier Jaillon,Stefanie Kandels,Lee Karp-Boss,Eric Karsenti,Fabrice Not,Hiroyuki Ogata,Nicole J. Poulton,Stephane Pesant,Christian Sardet,Sabrinia Speich,Lars Stemmann,Shinichi Sungawa,Patrick Wincker +54 more
TL;DR: Viruses of two candidate phyla are abundant in the ocean and revise the understanding of early RNA virus evolution, as well as identifying RNA viruses that necessitate substantive revisions of taxonomy and evolutionary understanding.
Journal ArticleDOI
Abolishment of morphology-based taxa and change to binomial species names: 2022 taxonomy update of the ICTV bacterial viruses subcommittee
Dann Turner,Andrey N. Shkoporov,Cédric Lood,Andrew D. Millard,Bas E. Dutilh,Poliane Alfenas-Zerbini,Leonardo Joaquim van Zyl,Ramy K. Aziz,Hanna M. Oksanen,Minna M. Poranen,Andrew M. Kropinski,Jakub Barylski,J. Rodney Brister,Nina Chanisvili,Rob A. Edwards,François Enault,Annika Gillis,Petar Knezevic,Mart Krupovic,İpek Kurtböke,Alla Kushkina,Rob Lavigne,Susan M. Lehman,M Lobocka,Cristina Moraru,Andrea I. Moreno Switt,V. V. Morozova,Jesca L. Nakavuma,Alejandro Reyes Muñoz,Janis Rumnieks,BL Sarkar,Matthew B. Sullivan,Jumpei Uchiyama,Johannes Wittmann,Tong Yi-gang,Evelien M. Adriaenssens +35 more
TL;DR: The activities of the Bacterial Viruses Subcommittee of the International Committee on Taxonomy of Viruses for the period of March 2021-March 2022 are summarized in this article , where the authors provide an overview of the new taxa proposed in 2021, approved by the Executive Committee, and ratified by vote in 2022.
Journal ArticleDOI
Organizing the Global Diversity of Microviruses
TL;DR: The largest collection of microviral genomes to date is amassed and a pipeline that enables the fast and facile sorting of novel microvirus genomes into well-defined taxonomic groups is developed, providing new insights into the biology of microviruses and emphasize fundamental differences between these miniature phages and their large, double-stranded DNA phage competitors.
Journal ArticleDOI
Three new clades of putative viral RNA-dependent RNA polymerases with rare or unique catalytic triads discovered in libraries of ORFans from powdery mildews and the yeast of oenological interest <i>Starmerella bacillari</i>s
TL;DR: In this article , a theoretical framework was used to report the finding of three conserved clades of protein-coding RNA segments without a corresponding DNA in fungi, which are distantly related to viral RNA-dependent RNA polymerases (RdRP).
Journal ArticleDOI
Guidance for creating individual and batch latinized binomial virus species names
Thomas S. Postler,Luisa Rubino,Evelien M. Adriaenssens,Bas E. Dutilh,Balázs Harrach,Sandra Junglen,Andrew M. Kropinski,Mart Krupovic,Jiro Wada,Anya Crane,Jens H. Kuhn,Arcady Mushegian,Janis Rumnieks,Sead Sabanadzovic,Peter Simmonds,Arvind Varsani,F. Murilo Zerbini,Julie Callanan,Lorraine A. Draper,Colin Hill,Stephen R. Stockdale +20 more
TL;DR: The International Committee on Taxonomy of Viruses recently adopted, and is gradually implementing, a binomial naming format for virus species as mentioned in this paper , which has the advantage of comparability with all other biological taxonomies.
References
More filters
Journal ArticleDOI
OrthoMCL: identification of ortholog groups for eukaryotic genomes.
TL;DR: OrthoMCL provides a scalable method for constructing orthologous groups across multiple eukaryotic taxa, using a Markov Cluster algorithm to group (putative) orthologs and paralogs.
Journal ArticleDOI
Redefining the invertebrate RNA virosphere
Mang Shi,Xian-Dan Lin,Jun-Hua Tian,Liangjun Chen,Xiao Chen,Ci-Xiu Li,Xin-Cheng Qin,Jun Li,Jian-Ping Cao,John-Sebastian Eden,Jan P. Buchmann,Wen Wang,Jianguo Xu,Edward C. Holmes,Edward C. Holmes,Yong-Zhen Zhang +15 more
TL;DR: A view of the RNA virosphere is presented that is more phylogenetically and genomically diverse than that depicted in current classification schemes and provide a more solid foundation for studies in virus ecology and evolution.
Journal ArticleDOI
Complete nucleotide sequence of bacteriophage MS2 RNA: primary and secondary structure of the replicase gene.
Walter Fiers,Roland Contreras,F Duerinck,Guy Haegeman,Dirk Iserentant,J. Merregaert,W. Min Jou,Francis Molemans,A Raeymaekers,A Van den Berghe,Guido Volckaert,M. Ysebaert +11 more
TL;DR: The complete, primary chemical structure of a viral genome has now been established and biological properties, such as ribosome binding and codon interactions can now be discussed on a molecular basis.
Journal ArticleDOI
RNA Viral Community in Human Feces: Prevalence of Plant Pathogenic Viruses
Tao Zhang,Mya Breitbart,Wah Heng Lee,Jin-Quan Run,Chia-Lin Wei,Shirlena Wee Ling Soh,Martin L. Hibberd,Edison T. Liu,Forest Rohwer,Yijun Ruan +9 more
TL;DR: The most abundant fecal virus in this study was pepper mild mottle virus (PMMV), which was found in high concentrations—up to 109 virions per gram of dry weight fecal matter, indicating that this plant virus is prevalent in the human population.
Journal ArticleDOI
Polypeptide Chain Initiation: Nucleotide Sequences of the Three Ribosomal Binding Sites in Bacteriophage R17 RNA
TL;DR: The initiator regions of the three cistrons of R17 bacteriophage RNA have been isolated and sequenced and contain a UGA triplet as well as the expected AUG and two contain the sequence GGUUUGA.