Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Rous Sarcoma Virus (RSV) and Cancer01:03

Rous Sarcoma Virus (RSV) and Cancer

6.4K
Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand  RNA genome. Its genome consists of four main open...
6.4K
Transmission-based Precautions I: Contact, Enteric, and Droplets01:17

Transmission-based Precautions I: Contact, Enteric, and Droplets

4.7K
Transmission-based precautions are for patients known to be infected or suspected to be infected or colonized with organisms that pose a significant risk to others. Some transmission-based precautions include contact, enteric, and droplet.
Contact Precautions:
Contact precautions are the measures taken to prevent the transmission of infectious agents, especially epidemiologically important microorganisms such as MRSA or influenza, primarily transmitted through direct or indirect contact with an...
4.7K
Retrovirus Life Cycles01:10

Retrovirus Life Cycles

49.8K
Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the...
49.8K
Viruses with RNA Genomes01:29

Viruses with RNA Genomes

981
RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...
981
Retroviruses02:33

Retroviruses

15.0K
Retroviruses and retrotransposons both insert copies of their genetic elements into the genome of the host cell. Thus, the viral genes are passed on when the host genome is replicated or translated. A typical retroviral DNA sequence contains 3-4 genes that encode the different proteins required for its structural assembly and function as a molecular parasite. This DNA is transcribed into a single mRNA, which is very similar in structure to conventional mRNAs, i.e., it is capped at the 5’...
15.0K
Subviral Agents01:29

Subviral Agents

596
Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...
596

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A Phylogeny of the Tymoviruses, Sensu Stricto, and Its Global Interpretation in Space and Time.

Plant disease·2025
Same author

Genomic Sequence of a Czech Isolate of Erysimum Latent Virus from <i>Sisymbrium altissimum</i>.

Plants (Basel, Switzerland)·2024
Same author

A Genetic Study of Spillovers in the Bean Common Mosaic Subgroup of Potyviruses.

Viruses·2024
Same author

Evolution and biogeography of apple stem grooving virus.

Virology journal·2023
Same author

Genomic High Plains Wheat Mosaic Virus Sequences from Australia: Their Phylogenetics and Evidence for Emaravirus Recombination and Reassortment.

Viruses·2023
Same author

Enhanced Apiaceous Potyvirus Phylogeny, Novel Viruses, and New Country and Host Records from Sequencing <i>Apiaceae</i> Samples.

Plants (Basel, Switzerland)·2022
Same journal

Molecular epidemiological investigation of viruses in Amur tigers in Northeast China.

Archives of virology·2026
Same journal

Mining viruses in public databases unveils the diversity within the Deltaflexiviridae family.

Archives of virology·2026
Same journal

Identification of novel hepaciviruses in rock pigeon (Columba livia [Gmelin, 1789]), rusty-margined flycatcher (Myiozetetes cayanensis [Linnaeus, 1766]), and Hispaniolan amazon (Amazona ventralis [Statius Muller, 1776]).

Archives of virology·2026
Same journal

Structural insights into DENV-2 NS2B-NS3 protease and inhibition by glutathione-coated gold nanocluster.

Archives of virology·2026
Same journal

Genomic characterization of three novel Shiga toxin-producing Escherichia coli lytic phages.

Archives of virology·2026
Same journal

Molecular characterization of a novel partitivirus isolated from Fusarium solani, the causal agent of tobacco root rot.

Archives of virology·2026
See all related articles

Related Experiment Video

Updated: Feb 17, 2026

A Rapid Strategy for the Isolation of New Faustoviruses from Environmental Samples Using Vermamoeba vermiformis
09:27

A Rapid Strategy for the Isolation of New Faustoviruses from Environmental Samples Using Vermamoeba vermiformis

Published on: June 4, 2016

8.2K

Rymovirus: a cautionary tale.

Adrian J Gibbs1, Mark J Gibbs2

  • 1Emeritus Faculty, Australian National University, Canberra, ACT, 2601, Australia. adrian_j_gibbs@hotmail.com.

Archives of Virology
|December 11, 2017
PubMed
Summary
This summary is machine-generated.

The genus Rymovirus should not be merged with Potyvirus. Relying solely on sequence identity can misrepresent the true evolutionary relationships between distinct virus groups.

More Related Videos

Arbovirus Infections As Screening Tools for the Identification of Viral Immunomodulators and Host Antiviral Factors
06:02

Arbovirus Infections As Screening Tools for the Identification of Viral Immunomodulators and Host Antiviral Factors

Published on: September 13, 2018

7.5K
Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo
12:42

Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo

Published on: January 7, 2019

10.3K

Related Experiment Videos

Last Updated: Feb 17, 2026

A Rapid Strategy for the Isolation of New Faustoviruses from Environmental Samples Using Vermamoeba vermiformis
09:27

A Rapid Strategy for the Isolation of New Faustoviruses from Environmental Samples Using Vermamoeba vermiformis

Published on: June 4, 2016

8.2K
Arbovirus Infections As Screening Tools for the Identification of Viral Immunomodulators and Host Antiviral Factors
06:02

Arbovirus Infections As Screening Tools for the Identification of Viral Immunomodulators and Host Antiviral Factors

Published on: September 13, 2018

7.5K
Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo
12:42

Paramyxoviruses for Tumor-targeted Immunomodulation: Design and Evaluation Ex Vivo

Published on: January 7, 2019

10.3K

Area of Science:

  • Plant virology
  • Molecular evolution
  • Virus taxonomy

Background:

  • The classification of plant viruses is crucial for understanding disease transmission and developing control strategies.
  • The genus Rymovirus shares some characteristics with the genus Potyvirus, leading to a recent proposal for their assimilation.
  • Phylogenetic analysis is a key tool in determining the relatedness of viral species and genera.

Purpose of the Study:

  • To evaluate the proposal of assimilating the genus Rymovirus into the genus Potyvirus.
  • To critically assess the criteria used for distinguishing closely related virus groups.
  • To highlight the limitations of using sequence identity as the sole indicator of phylogenetic relatedness.

Main Methods:

  • Comparative analysis of genomic and proteomic data between Rymovirus and Potyvirus species.
  • Phylogenetic reconstruction using established bioinformatics tools.
  • Review of existing literature and taxonomic guidelines for virus classification.

Main Results:

  • The proposal to assimilate Rymovirus into Potyvirus was rejected based on comprehensive analysis.
  • Significant differences in key biological and genomic features were identified between the two genera.
  • Sequence identity alone was found to be an unreliable metric for determining phylogenetic relatedness in this context.

Conclusions:

  • Rymovirus and Potyvirus represent distinct genera that should be maintained separately.
  • Over-reliance on sequence identity can lead to inaccurate phylogenetic interpretations and flawed taxonomic decisions.
  • Robust phylogenetic analyses incorporating multiple data types are essential for accurate virus classification.