# Summary of taxonomy changes ratified by the International Committee on Taxonomy of Viruses from the Plant Viruses Subcommittee, 2025

Luisa Rubino, Peter Abrahamian, Wenxia An, Miguel Aranda, José T Ascencio-Ibañez, Nicolas Bejerman, Arnaud G Blouin, Thierry Candresse, Tomas Canto, Mengji Cao, et al.

► To cite this version:

Luisa Rubino, Peter Abrahamian, Wenxia An, Miguel Aranda, José T Ascencio-Ibañez, et al. Summary of taxonomy changes ratified by the International Committee on Taxonomy of Viruses from the Plant Viruses Subcommittee, 2025. Journal of General Virology, 2025, 106 (7), pp.002114. 10.1099/jgv.0.002114. hal-05190019

HAL Id: hal-05190019

https://hal.science/hal-05190019v1

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# Summary of taxonomy changes ratified by the International Committee on Taxonomy of Viruses from the Plant Viruses Subcommittee, 2025

Luisa Rubino¹*, Peter Abrahamian², Wenxia An³, Miguel A. Aranda⁴, José T. Ascencio-Ibañez⁵, Nicolas Bejerman⁶, Arnaud G. Blouin⁷, Thierry Candresse⁸, Tomas Canto⁹, Mengji Cao¹⁰, John P. Carr¹¹, Won Kyong Cho¹², Fiona Constable¹³, Indranil Dasgupta¹⁴, Humberto Debat⁶, Ralf G. Dietzgen¹⁵, Michele Digiaro¹⁶, Livia Donaire⁶, Toufic Elbeaino¹⁶, Denis Fargette¹⁷, Fiona Filardo¹⁸, Matthias G. Fischer¹⁹, Nuria Fontdevila⁷, Adrian Fox²⁰, Juliana Freitas-Astua²¹, Marc Fuchs²², Andrew D.W. Geering¹⁵, Mahan Ghafari²³, Anders Hafrén²⁴, John Hammond²⁵, Rosemarie Hammond²⁶, Beata Hasiów-Jaroszewska²⁷, Eugenie Hebrard²⁸, Carmen Hernández²⁹, Jean-Michel Hily³⁰, Ahmed Hosseini³¹, Roger Hull³², Alice K. Inoue-Nagata³³, Ramon Jordan²⁵, Hideki Kondo³⁴, Jan F. Kreuze³⁵, Mart Krupovic³⁶, Kenji Kubota³⁷, Jens H. Kuhn³⁸, Scott Leisner³⁹, Jean-Michel Lett⁴⁰, Chengyu Li³, Fan Li⁴¹, Jun Min Li⁴², Paola M. López-Lambertini⁴³, Juan J. Lopez-Moya⁴⁴, Francois Maclot⁸, Kristiina Mäkinen⁴⁵, Darren Martin⁴⁶, Sebastien Massart⁴⁷, W. Allen Miller⁴⁸, Musa Mohammadi⁴⁹, Dimitre Mollov⁵⁰, Emmanuelle Muller⁵¹, Tatsuya Nagata⁵², Jesús Navas-Castillo⁵³, Yutaro Neriya⁵⁴, Francisco M. Ochoa-Corona⁵⁵, Kazusato Ohshima⁵⁶, Vicente Pallás²⁹, Hanu Pappu⁵⁷, Karel Petrzik⁵⁸, Mikhail Pooggin²⁸, Maria Isabella Prigigallo¹, Pedro L. Ramos-González⁵⁹, Simone Ribeiro⁶⁰, Katja R. Richert-Pöggeler⁶¹, Philippe Roumagnac⁶², Avijit Roy²⁶, Sead Sabanadzovic⁶³, Dana Šafářová⁶⁴, Pasquale Saldarelli¹, Hélène Sanfaçon⁶⁵, Cecilia Sarmiento⁶⁶, Takahide Sasaya⁶⁷, Kay Scheets⁶⁸, Willem E.W. Schravesande⁶⁹, Susan Seal⁷⁰, Yoshifumi Shimomoto⁷¹, Merike Sõmera⁶⁶, Livia Stavolone¹, Lucy R. Stewart⁷², Pierre-Yves Teycheney⁷³, John E. Thomas¹⁵, Jeremy R. Thompson⁷⁴, Antonio Tiberini⁷⁵, Yasuhiro Tomitaka³⁷, Ioannis Tzanetakis⁷⁶, Marie Umber⁷⁷, Cica Urbino²⁸, Harrold A. van den Burg⁶⁹, René A.A. Van der Vlugt⁷⁸, Arvind Varsani⁷⁹, Adriaan Verhage⁸⁰, Dan Villamor⁷⁶, Susanne von Bargen⁸¹, Peter J. Walker⁸², Thierry Wetzel⁸³, Anna E. Whitfield⁸⁴, Stephen J. Wylie⁸⁵, Caixia Yang³, F. Murilo Zerbini⁸⁶, Song Zhang¹⁰ and ICTV Taxonomy Summary Consortium

## Abstract

In March 2025, following the annual International Committee on Taxonomy of Viruses (ICTV) ratification vote, newly proposed taxa were added to those under the mandate of the Plant Viruses Subcommittee. In brief, 1 new order, 3 new families, 6 new genera, 2 new subgenera and 206 new species were created. Some taxa were reorganized. Genus *Cytorhabdovirus* in the family *Rhabdoviridae* was abolished and its taxa were redistributed into three new genera *Alphacytorhabdovirus*, *Betacytorhabdovirus* and *Gammacytorhabdovirus*. Genus *Waikavirus* in the family *Secoviridae* was reorganized into two subgenera (*Actinidivirus* and *Ritunrivirus*). One family and four previously unaffiliated genera were moved to the newly established order *Tombendovirales*. Twelve species not assigned to a genus were abolished. To comply with the ICTV mandate of a binomial format for virus species, eight species were renamed. Demarcation criteria in the absence of biological information were defined in the genus *Ilarvirus* (family *Bromoviridae*). This article presents the updated taxonomy put forth by the Plant Viruses Subcommittee and ratified by the ICTV.

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# INTRODUCTION

The Plant Viruses Subcommittee of the International Committee on Taxonomy of Viruses (ICTV) deals with the taxonomic classification of most viruses infecting or isolated from plants [1]. It consists of 22 Study Groups, composed of more than 180 members, covering 27 virus families.

Viruses, viroids, satellite viruses and satellite nucleic acids originally isolated from plants have been classified into 2,392 species belonging to 247 genera in 55 families, 25 orders, 16 classes, 7 phyla, 3 kingdoms and 2 realms [2]. Following the 2025 ICTV ratification vote, these taxa were expanded by creating 1 new order, 3 new families, 6 new genera, 2 new subgenera and 206 new species.

To comply with the ICTV mandate of a binomial format for virus species [3, 4], species names will consist of the genus name followed by a Latinized or not Latinized (freeform) epithet [5, 6]. The adoption of the binomial format for virus species names was completed by renaming eight species. Similarly, 12 species in the families *Rhabdoviridae* and *Tombusviridae* were abolished because they could not be assigned to a genus due to the lack of a genome sequence. Viruses in many of the new species were discovered by metagenomic analysis and were classified according to Simmonds *et al.* [7].

Some established taxa have been extensively reorganized. The family *Rhabdoviridae* has been expanded by the creation of one new genus, whereas the genus *Cytorhabdovirus* was abolished and replaced with three new genera *Alphacytorhabdovirus*, *Beta-cytorhabdovirus* and *Gammacytorhabdovirus*, representing distinct evolutionary lineages. In the family *Secoviridae*, one new genus was created and the established genus *Waikavirus* was reorganized into two subgenera. The establishment of the new order *Tombendovirales* allowed the placement of four previously unaffiliated genera of plant satellite viruses into four families based on high-resolution capsid structure studies rather than sequence identity.

The classification of viruses discovered by metagenomics prompted some refinement of demarcation criteria in the absence of biological information. For instance, species demarcation criteria based on 'serology, host range and sequence similarity' in the genus *Ilarvirus*, family *Bromoviridae*, have been refined to require less than 85% amino acid identity for the complete RNA2-encoded 2a protein.

All of these changes contribute to the advancement of virus taxonomy. To disseminate taxonomy decisions, the annual publication of summaries of all taxonomy proposals from each ICTV Subcommittee will provide a compendium of the taxonomy changes [8]. Therefore, the updated taxonomy from the Plant Viruses Subcommittee as now accepted by the ICTV is summarized in this article. It should be noted that the article does not necessarily cover all changes in the taxonomy of plant viruses, and consultation of reports from the Fungal and Protist Viruses Subcommittee [9] and the Animal dsRNA and ssRNA(-) Viruses Subcommittee [10] may be needed. A file including all the Tables of taxonomic changes below is available as a supplementary file to this article.

# MAIN TEXT

## CONTENTS

* 2024.001P.Fimoviridae_1nsp

* 2024.002P.Alphaflexiviridae_7nsp

* 2024.003P.Tospoviridae_2nsp

* 2024.004P.Konkoviridae_1nsp

* 2024.005P.Caulimoviridae_3nsp

* 2024.006P.Kitaviridae_3nsp

* 2024.007P.Geminiviridae_Capulavirus_1nsp

* 2024.008P.Geminiviridae_Citlodavirus_2nsp

* 2024.009P.Geminiviridae_Mastrevirus_5nsp

* 2024.010P.Geminiviridae_Begomovirus_18nsp

* 2024.011P.Bromoviridae_4nsp

* 2024.012P.Potyviridae_1ng_10nsp

* 2024.013P.Secoviridae_1ng_2nsg_34nsp

* 2024.014P.Rhabdoviridae_2nsp

* 2024.015P.Rhabdoviridae_Cytorhabdovirus_splitgen

* 2024.016P.Rhabdoviridae_1ngen_5nsp

* 2024.017P.Tombusviridae_abolishsp

* 2024.018P.Tombusviridae_1nsp

* 2024.019P.Closteroviridae_1nsp

* 2024.021P.Riboviria_1nord

* 2024.022P.Betaflexiviridae_abolishsp
2024.023P.Solemoviridae_rename_sp

2024.024P.Tymoviridae_abolish_sp

## 2024.001P.Fimoviridae_1nsp

**Title:** Create *Emaravirus clematis* as a new species in the genus *Emaravirus*, family *Fimoviridae*

**Authors:** Yang C., An W., Li C., Zhang S., Cao M., Digiaro M. (digiaro@iamb.it), Elbeaino T., Kubota K., Ochoa Corona F.M., von Bargen S.

### Summary

**Taxonomic rank(s) affected**

Species

**Description of current taxonomy**

The family *Fimoviridae* currently includes 32 virus species in the genus *Emaravirus*.

**Proposed taxonomic change(s)**

Add one (1) new virus species to genus *Emaravirus* within the family *Fimoviridae*.

**Justification**

The creation of the new species *Emaravirus clematis* in the genus *Emaravirus*, family *Fimoviridae*, is proposed to accommodate Clematis yellow mottle-associated virus, identified in China on *Clematis brevicaudata* DC. The virus assigned to the new species consists of a fully sequenced five-segmented, linear, single-stranded (ss), negative-sense RNA genome (of which two RNA3s encode the nucleocapsid protein), which shows features common to homologous RNAs of viruses assigned to other *Emaravirus* species but from which they differ significantly in nucleotide and amino acid sequences.

**Submitted:** 30/04/24; **Revised:** 16/09/24

<table><caption>**Table 1.** *Fimoviridae*, 1 new taxon*</caption><thead><tr><td>Operation</td><td>Rank</td><td>New taxon name</td><td>Virus name</td><td>Exemplar</td></tr></thead><tbody><tr><td>New taxon</td><td>Species</td><td><i>Emaravirus clematis</i></td><td>Clematis yellow mottle-associated virus</td><td>RNA1: OP807964; RNA2: OP807965; RNA3a: OP807966; RNA3b: OP807967; RNA4: OP807968</td></tr></tbody></table>

## 2024.002P.Alphaflexiviridae_7nsp

**Title:** Create seven new species in the family *Alphaflexiviridae*

**Authors:** Abrahamian P., Donaire L., Candresse T., Fox A., Hammond J., Hasiów-Jaroszewska B., Kreuze J., Rubino L., Aranda M.A. (m.aranda@cebas.csic.es)

### Summary

**Taxonomic rank(s) affected**

Species

**Description of current taxonomy**

The family *Alphaflexiviridae* currently includes 65 virus species in genera *Allexivirus* (13), *Botrexvirus* (1), *Lolavirus* (1), *Platypuvirus* (1), *Potexvirus* (48) and *Sclerodarnavirus* (1).

**Proposed taxonomic change(s)**

Add seven (7) new virus species to genera *Allexivirus* (1), *Botrexvirus* (2) and *Potexvirus* (4) within the family *Alphaflexiviridae*.

**Justification**

Throughout the family, isolates of viruses assigned to different species have less than 72% nucleotide identity (or 80% amino acid identity) among their respective coat protein or polymerase genes (or proteins). Viruses from different genera usually have <45% nucleotide identity in these genes. The nucleotide or amino acid sequences of viruses belonging to the seven newly proposed species fit well within these demarcation criteria.

**Submitted:** 14/06/24

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.001P.Fimoviridae_1nsp.zip.</footnote>
<table><caption>**Table 2.** *Alphaflexiviridae*, 7 new taxa*</caption><thead><tr><td>Operation</td><td>Rank</td><td>New taxon name</td><td>Virus name</td><td>Exemplar</td></tr></thead><tbody><tr><td>New taxon</td><td>Species</td><td>Allexivirus rehmanniae</td><td>Rehmannia allexivirus</td><td>PP097219</td></tr><tr><td>New taxon</td><td>Species</td><td>Botrexvirus unosclerotiniae</td><td>Sclerotinia sclerotiorum alphaflexivirus 1</td><td>ON993219</td></tr><tr><td>New taxon</td><td>Species</td><td>Botrexvirus duosclerotiniae</td><td>Sclerotinia sclerotiorum alphaflexivirus 2</td><td>OQ865609</td></tr><tr><td>New taxon</td><td>Species</td><td>Potexvirus ecsadenii</td><td>Adenium obesum virus X</td><td>OR039325</td></tr><tr><td>New taxon</td><td>Species</td><td>Potexvirus chaenostomae</td><td>Chaenostoma potexvirus</td><td>OL979628</td></tr><tr><td>New taxon</td><td>Species</td><td>Potexvirus ecshibisci</td><td>Hibiscus virus X</td><td>PP115950</td></tr><tr><td>New taxon</td><td>Species</td><td>Potexvirus ecscaricae</td><td>papaya virus X</td><td>MN265368</td></tr></tbody></table>

## 2024.003P.Tospoviridae_2nsp

**Title:** Create two new species in the genus *Orthotospovirus* (Elliovirales: Tospoviridae)

**Authors:** Tomitaka Y., Shimomoto Y., Sasaya T. (tsasaya@affrc.go.jp)

### Summary

**Taxonomic rank(s) affected**

Species

**Description of current taxonomy**

The family *Tospoviridae* currently includes 28 virus species in the genus *Orthotospovirus*.

**Proposed taxonomic change(s)**

Add two (2) new virus species to genus *Orthotospovirus* within the family *Tospoviridae*.

**Justification**

It is proposed that two (2) newly discovered tospovirids be classified into new species in the genus *Orthotospovirus* on the basis of species demarcation criteria in the amino acid sequence of the RNA-directed RNA polymerase and nucleocapsid protein.

**Submitted:** 13/06/24

<table><caption>**Table 3.** *Tospoviridae*, 2 new taxa*</caption><thead><tr><td>Operation</td><td>Rank</td><td>New taxon name</td><td>Virus name</td><td>Exemplar</td></tr></thead><tbody><tr><td>New taxon</td><td>Species</td><td>Orthotospovirus eustomae</td><td>lisianthus necrotic ringspot virus</td><td>MF469045; MF469046; MF469047</td></tr><tr><td>New taxon</td><td>Species</td><td>Orthotospovirus fatsiae</td><td>Fatsia japonica ringspot-associated virus</td><td>LC626335; LC626336; LC626337</td></tr></tbody></table>

## 2024.004P.Konkoviridae_1nsp

**Title:** Create one new species in the genus *Olpivirus* (Hareavirales: Konkoviridae)

**Authors:** Neriya Y., Schravesande W.E.W., van den Burg H.A., Verhage A., Tomitaka Y., Sasaya T. (tsasaya@affrc.go.jp)

### Summary

**Taxonomic rank(s) affected**

Species

**Description of current taxonomy**

The family *Konkoviridae* currently includes one virus species in the genus *Olpivirus*.

**Proposed taxonomic change(s)**

Add one (1) new virus species to genus *Olpivirus* within the family *Konkoviridae*.

**Justification**

It is proposed that one (1) newly discovered konkovirid be classified into a new species in the genus *Olpivirus* on the basis of a species demarcation criterion of <95% identity in the amino acid sequence of the RNA-directed RNA polymerase.

**Submitted:** 13/06/24; **Revised:** 07/10/24

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.002P.Alphaflexiviridae_7nsp.zip.</footnote>

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.003P.Tospoviridae_2nsp.zip.</footnote>
<table><caption>**Table 4.** *Konkoviridae*, 1 new taxon*</caption><thead><tr><th>Operation</th><th>Rank</th><th>New taxon name</th><th>Virus name</th><th>Exemplar</th></tr></thead><tbody><tr><td>New taxon</td><td>Species</td><td>Olpivirus lactucae</td><td>Lactuca big vein associated phlebovirus</td><td>RNA1: OR610326; RNA2: OR610327; RNA3: OR610328; RNA4: OR610329</td></tr></tbody></table>

## 2024.005P.Caulimoviridae_3nsp

**Title:** Create three new species in the genus *Badnavirus* (*Ortervirales: Caulimoviridae*)

**Authors:** Umber M., Dasgupta I., Geering A.D.W., Hafrén A., Hull R., Kreuze J., Leisner S., Muller E., Pappu H., Pooggin M., Richert-Pöggeler K.R., Seal S., Stavolone L., Teycheney P.Y. (teycheney@cirad.fr)

### Summary

**Taxonomic rank(s) affected**

Genus (*Badnavirus*)

**Description of current taxonomy**

The family *Caulimoviridae* [11] currently comprises 11 genera whose members share a similar genome organization. The molecular species demarcation criterion is <80% identity of nucleotide sequences in the reverse transcriptase/ribonuclease H region of the polymerase. Genus *Badnavirus* [12] currently includes 71 species and is the largest genus within the family *Caulimoviridae*.

**Proposed taxonomic change(s)**

Add three (3) new species to the genus *Badnavirus* (*Badnavirus fatsiae*, *Badnavirus tetainflatheobromae* and *Badnavirus ziziphi*).

**Justification**

Complete genomes of the exemplar members of the three proposed new species were sequenced and published recently. Their organizations are similar to those of other members of the genus *Badnavirus*. Phylogenetic analyses place them in this genus as distinct representatives of novel species.

**Submitted:** 14/06/2024

<table><caption>**Table 5.** *Caulimoviridae*, 3 new taxa*</caption><thead><tr><th>Operation</th><th>Rank</th><th>New taxon name</th><th>Virus name</th><th>Exemplar</th></tr></thead><tbody><tr><td>New taxon</td><td>Species</td><td>Badnavirus fatsiae</td><td>Fatsia badnavirus 1</td><td>OM540428</td></tr><tr><td>New taxon</td><td>Species</td><td>Badnavirus tetainflatheobromae</td><td>cacao swollen shoot Ghana T virus</td><td>MN179342</td></tr><tr><td>New taxon</td><td>Species</td><td>Badnavirus ziziphi</td><td>jujube badnavirus WS</td><td>OL739567</td></tr></tbody></table>

## 2024.006P.Kitaviridae_3nsp

**Title:** Create a new species in the genus *Cilevirus* and two in the genus *Higrevirus*, family *Kitaviridae* (*Martellivirales*)

**Authors:** Li C., An W., Zhang S., Cao M., Yang C. (xueyang27@126.com), Mohammadi M., Hosseini A., Nasrollanejad S., Roy A., Freitas-Astua J., Tiberini A., Li J.M., Ramos-González P.L.

### Summary

**Taxonomic rank(s) affected**

Species

**Description of current taxonomy**

Family *Kitaviridae*, order *Martellivirales*, includes plant-infecting viruses having linear single-stranded (ss) positive-sense (+) segmented RNA genomes. Viruses in this family are assigned to the genera *Cilevirus*, *Higrevirus* or *Blunervirus* [13, 14].

**Proposed taxonomic change(s)**

Add three (3) new species to the family *Kitaviridae*, one (1) to the genus *Cilevirus* and two (2) to the genus *Higrevirus*.

**Justification**

The genomes of the three novel viruses show an arrangement that resembles that of kitvirids, and their core conserved proteins share relatively low amino acid sequence identities (<85%) with recognized members of the family *Kitaviridae*. In phylogenetic analyses, the three viruses group with characterized members of the genera *Cilevirus* and *Higrevirus*, but they

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.004P.Konkoviridae_1nsp.zip.</footnote>

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.005P.Caulimoviridae_3nsp.zip.</footnote>
are well-separated and supported by bootstrap values >95%. All new species meet the already established or the demarcation criteria defined in this proposal.

**Submitted:** 11/06/2024

<table><caption>**Table 6.** *Kitaviridae*, 3 new taxa*</caption><thead><tr><th>Operation</th><th>Rank</th><th>New taxon name</th><th>Virus name</th><th>Exemplar</th></tr></thead><tbody><tr><td>New taxon</td><td>Species</td><td><i>Higrevirus amurense</i></td><td>Phellodendron-associated higre-like virus</td><td>RNA1: OP324809; RNA2: OP324810; RNA3: OP324811</td></tr><tr><td>New taxon</td><td>Species</td><td><i>Higrevirus pistaciae</i></td><td>pistachio virus X</td><td>RNA1: MT334620; RNA2: MT334619; RNA3: MT334618</td></tr><tr><td>New taxon</td><td>Species</td><td><i>Cilevirus pistaciae</i></td><td>pistachio virus Y</td><td>RNA1: MT362606; RNA2: MT362605</td></tr></tbody></table>

## 2024.007P.Geminiviridae_Capulavirus_1nsp

**Title:** Create one new species in the genus *Capulavirus* (Geplafuvirales: Geminiviridae)

**Authors:** Roumagnac P. (philippe.roumagnac@cirad.fr), Ascencio-Ibanez J., Lett J.-M., López-Lambertini P.M., Martin D.P., Navas-Castillo J., Ribeiro S., Urbino C., Varsani A., Zerbini F.M.

### Summary

**Taxonomic rank(s) affected**

Genus (*Capulavirus*)

**Description of current taxonomy**

Monodnaviria: *Shotokuvirae*: *Cressdnaviricota*: *Repensiviricetes*: *Geplafuvirales*: *Geminiviridae*: *Capulavirus*.

**Proposed taxonomic change(s)**

Add one (1) new species to the genus *Capulavirus* (*Capulavirus trifolii*).

**Justification**

Similar to members of the *Capulavirus* genus, members of the proposed new species *Capulavirus trifolii* have the virion-strand origin of replication nonanucleotide motif 'TAATATTAC' and show a typical capulavirus genome organization, with putative multiple overlapping short ORFs (V3 and V4) upstream of the coat protein gene that encode putative movement proteins. In addition, genome-wide pairwise analysis of the representative genomes of capulaviruses showed that viruses in the species *Capulavirus trifolii* share <78% identity with all representative genomes of capulaviruses. Because 78% nucleotide identity is the genome-wide species demarcation threshold for capulaviruses, it was concluded that *Capulavirus trifolii* represents a new species in the genus *Capulavirus*.

**Submitted:** 10/06/24

<table><caption>**Table 7.** *Geminiviridae*, 1 new taxon*</caption><thead><tr><th>Operation</th><th>Rank</th><th>New taxon name</th><th>Virus name</th><th>Exemplar</th></tr></thead><tbody><tr><td>New taxon</td><td>Species</td><td><i>Capulavirus trifolii</i></td><td>Trifolium virus 1</td><td>MW698813</td></tr></tbody></table>

## 2024.008P.Geminiviridae_Citlodavirus_2nsp

**Title:** Create two new species in the genus *Citlodavirus* (Geplafuvirales: Geminiviridae)

**Authors:** Roumagnac P. (philippe.roumagnac@cirad.fr), Ascencio-Ibanez J., Lett J.-M., López-Lambertini P.M., Martin D.P., Navas-Castillo J., Ribeiro S., Urbino C., Varsani A., Zerbini F.M.

### Summary

**Taxonomic rank(s) affected**

Genus (*Citlodavirus*)

**Description of current taxonomy**

Monodnaviria: *Shotokuvirae*: *Cressdnaviricota*: *Repensiviricetes*: *Geplafuvirales*: *Geminiviridae*: *Citlodavirus*.

**Proposed taxonomic change(s)**

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.006PKitaviridae_3nsp.zip.</footnote>

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.007P.Geminiviridae_Capulavirus_1nsp.zip.</footnote>
Add two (2) new species to genus *Citlodavirus* (*Citlodavirus apijamaicaense* and *Citlodavirus myricae*).

**Justification**

Similar to members of the *Citlodavirus* genus, members of the proposed new species *Citlodavirus apijamaicaense* and *Citlodavirus myricae* have the virion-strand origin of replication nonanucleotide motif 'TAA TAT TAC', a relatively large genome (3,918 and 3,775 nt, respectively) and unique genome arrangements that, in both cases, include the putative *mp* gene (888 and 912 nt, respectively) that is similar in size to the *mp* gene in the DNA-B of bipartite begomoviruses. Genome-wide pairwise analysis of the representative genomes of citlodaviruses showed that viruses in the species *Citlodavirus apijamaicaense* and *Citlodavirus myricae* share <78% identity with all representative genomes of citlodaviruses and with each other. Since 78% nucleotide identity is the genome-wide species demarcation threshold for citlodaviruses, it has been concluded that *Citlodavirus apijamaicaense* and *Citlodavirus myricae* represent two new species in the genus *Citlodavirus*.

**Submitted:** 10/06/2024

<table><caption>**Table 8.** *Geminiviridae*, 2 new taxa*</caption><thead><tr><td>Operation</td><td>Rank</td><td>New taxon name</td><td>Virus name</td><td>Exemplar</td></tr></thead><tbody><tr><td>New taxon</td><td>Species</td><td>Citlodavirus apijamaicaense</td><td>apiscitlodal virus</td><td>PP467584</td></tr><tr><td>New taxon</td><td>Species</td><td>Citlodavirus myricae</td><td>Myrica rubra citlodavirus 1</td><td>OP374189</td></tr></tbody></table>

**2024.009P.Geminiviridae_Mastrevirus_5nsp**

**Title:** Establish five new species in the genus *Mastrevirus*

**Authors:** Varsani A. (Arvind varsani@asu.edu), Martin D.P., Roumagnac P., Ascencio-Ibanez J., Lett J.-M., López-Lambertini P.M., Navas-Castillo J., Ribeiro S., Urbino C., Zerbini F.M.

**Summary**

**Taxonomic rank(s) affected**

Species

**Description of current taxonomy**

*Monodnaviria: Shotokuvirae: Cressdnaviricota: Repensiviricetes: Geplafuvirales: Geminiviridae: Mastrevirus.* Within the genus *Mastrevirus*, viruses are classified into species based on a 78% genome-wide pairwise identity threshold [15].

**Proposed taxonomic change(s)**

Add five (5) new species to classify a suite of new mastreviruses that have been identified over the last year or so.

**Justification**

The members of the five new proposed species in the genus *Mastrevirus* share <78% genome-wide pairwise identity with sequences of members of currently established mastrevirus species.

**Submitted:** 10/06/24

<table><caption>**Table 9.** *Geminiviridae*, 5 new taxa*</caption><thead><tr><td>Operation</td><td>Rank</td><td>New taxon name</td><td>Virus name</td><td>Exemplar</td></tr></thead><tbody><tr><td>New taxon</td><td>Species</td><td>Mastrevirus urochloareunionense</td><td>Urochloa decumbens associated virus</td><td>OQ451139</td></tr><tr><td>New taxon</td><td>Species</td><td>Mastrevirus nomiae</td><td>nomiamastrel virus</td><td>PP467585</td></tr><tr><td>New taxon</td><td>Species</td><td>Mastrevirus brachypodiumprimi</td><td>Brachypodium phoenicoides associated virus 1</td><td>OR596402</td></tr><tr><td>New taxon</td><td>Species</td><td>Mastrevirus bothriochloae</td><td>Bothriochloa barbinodis associated virus</td><td>OR596403</td></tr><tr><td>New taxon</td><td>Species</td><td>Mastrevirus brachypodiumsecundi</td><td>Brachypodium phoenicoides associated virus 2</td><td>OR596405</td></tr></tbody></table>

**2024.010P.Geminiviridae_Begomovirus_18nsp**

**Title:** Create 18 new species in the genus *Begomovirus* (*Geplafuvirales: Geminiviridae*)

**Authors:** Zerbini F.M. (zerbini@ufv.br), Ascencio-Ibanez J., Lett J.M., Navas-Castillo J., Urbino C., López-Lambertini P.M., Martin D.P., Ribeiro S.G., Roumagnac P., Varsani A.

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.008P.Geminiviridae_Citlodavirus_2nsp.zip.</footnote>

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.009P.Geminiviridae_Mastrevirus_5nsp.zip.</footnote>
# Summary

## Taxonomic rank(s) affected

Species in the genus *Begomovirus*

## Description of current taxonomy

*Monodnaviria: Shotokuvirae: Cressdnaviricota: Repensiviricetes: Geplafuvirales: Geminiviridae: Begomovirus.* Within the genus *Begomovirus*, viruses are classified into species based on a 91% genome-wide (or DNA-A in the case of bipartite viruses) pairwise identity threshold [16].

## Proposed taxonomic change(s)

Creation of 18 new species to classify new begomoviruses that have been identified and described in the literature over the last 3 years.

## Justification

All 18 proposed new species have <91% genome-wide (or DNA-A in the case of bipartite viruses) pairwise identity with sequences of members of currently established begomovirus species.

**Submitted: 10/06/24**

<table><caption>**Table 10.** *Begomovirus*, 18 new taxa*</caption><thead><tr><td>Operation</td><td>Rank</td><td>New taxon name</td><td>Virus name</td><td>Exemplar</td></tr></thead><tbody><tr><td>New taxon</td><td>Species</td><td>Begomovirus chuxiongense</td><td>tomato leaf curl Chuxiong virus</td><td>OR543988</td></tr><tr><td>New taxon</td><td>Species</td><td>Begomovirus solanumaureusreti</td><td>tomato golden net virus</td><td>MT214095</td></tr><tr><td>New taxon</td><td>Species</td><td>Begomovirus solanumflavusreti</td><td>tomato yellow net virus</td><td>MT214096</td></tr><tr><td>New taxon</td><td>Species</td><td>Begomovirus whitaniae</td><td>Withania leaf curl virus</td><td>OP617239</td></tr><tr><td>New taxon</td><td>Species</td><td>Begomovirus cajani</td><td>Cajanus scarabaeoides yellow mosaic virus</td><td>OM397101; OM397102</td></tr><tr><td>New taxon</td><td>Species</td><td>Begomovirus hortuscrotoni</td><td>garden croton enation leaf curl virus</td><td>MW816855; MW816857</td></tr><tr><td>New taxon</td><td>Species</td><td>Begomovirus jatrophagunturense</td><td>Jatropha leaf curl Guntur virus</td><td>MZ217773</td></tr><tr><td>New taxon</td><td>Species</td><td>Begomovirus hyptidis</td><td>Hyptis golden mosaic virus</td><td>ON073795; ON073796</td></tr><tr><td>New taxon</td><td>Species</td><td>Begomovirus galii</td><td>Galium leaf distortion virus</td><td>OL689630</td></tr><tr><td>New taxon</td><td>Species</td><td>Begomovirus myanmarense</td><td>tobacco curly shoot Myanmar virus</td><td>MK920410</td></tr><tr><td>New taxon</td><td>Species</td><td>Begomovirus caboniensis</td><td>Cnidoscolus mild mosaic virus</td><td>MZ465527; MZ465585</td></tr><tr><td>New taxon</td><td>Species</td><td>Begomovirus pyrenacanthae</td><td>Pyrenacantha yellow mosaic virus</td><td>MZ390982; MZ390984</td></tr><tr><td>New taxon</td><td>Species</td><td>Begomovirus puerense</td><td>tobacco leaf curl Puer virus</td><td>MZ465370</td></tr><tr><td>New taxon</td><td>Species</td><td>Begomovirus solanumdistorsionis</td><td>tomato mottle leaf distortion virus</td><td>MW561191; MW650837</td></tr><tr><td>New taxon</td><td>Species</td><td>Begomovirus alceacrispi</td><td>hollyhock vein yellowing virus</td><td>LK028571</td></tr><tr><td>New taxon</td><td>Species</td><td>Begomovirus muntiflavi</td><td>Muntingia yellow spot virus</td><td>MW032664; MW032665</td></tr><tr><td>New taxon</td><td>Species</td><td>Begomovirus flavintervenae</td><td>tomato interveinal yellowing virus</td><td>MW057360</td></tr><tr><td>New taxon</td><td>Species</td><td>Begomovirus sidaflavitessellati</td><td>Sida yellow mosaic Gujarat virus</td><td>KX513859</td></tr></tbody></table>

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.010P.Geminiviridae_Begomovirus_18nsp.zip.</footnote>
## 2024.011P.Bromoviridae_4nsp

**Title:** Create four (4) new species in the genus *Ilarvirus* (*Martellivirales: Bromoviridae*)

**Authors:** Thompson J.R. (jeremy.thompson@mpi.govt.nz), Canto T., Carr J.P., Pallás V., Šafářová D.

### Summary

**Taxonomic rank(s) affected**

Species

**Description of current taxonomy**

The family *Bromoviridae* currently includes 49 virus species in genera *Alfamovirus* (1), *Anulavirus* (4), *Bromovirus* (7), *Cucumovirus* (4), *Ilarvirus* (32) and *Oleavirus* (1).

**Proposed taxonomic change(s)**

Add four (4) new virus species to genus *Ilarvirus* within the family *Bromoviridae*.

**Justification**

This taxonomic proposal considers the recognition of four new virus species based on species demarcation criteria in the family *Bromoviridae*, genus *Ilarvirus* of 'serology, host range and sequence similarity'. In the absence of biological information, it is proposed that a refinement of the 'sequence similarity' criterion be made to require that members of different species display <85% amino acid identity for the complete RNA2-encoded 2a protein.

**Submitted:** 10/06/24; **Revised:** 07/10/24

<table><caption>**Table 11.** *Bromoviridae*, 4 new taxa*</caption><thead><tr><td>Operation</td><td>Rank</td><td>New taxon name</td><td>Virus name</td><td>Exemplar</td></tr></thead><tbody><tr><td>New taxon</td><td>Species</td><td>Ilarvirus ApNMV</td><td>apple necrotic mosaic virus</td><td>LC108993; LC108994; LC108995</td></tr><tr><td>New taxon</td><td>Species</td><td>Ilarvirus BabIV1</td><td>babaco ilarvirus 1</td><td>OQ256238; OQ256239; OQ256240</td></tr><tr><td>New taxon</td><td>Species</td><td>Ilarvirus TIV1</td><td>tomato ilarvirus 1</td><td>OL472057; OL472058; OL472059</td></tr><tr><td>New taxon</td><td>Species</td><td>Ilarvirus ToNSV</td><td>tomato necrotic spot virus</td><td>MH780154; MH780155; MH780156</td></tr></tbody></table>

## 2024.012P.Potyviridae_1ng_10nsp

**Title:** Create 1 new genus (*Phragmivirus*) with 2 species and 8 new species in the genus *Potyvirus* (*Patatavirales: Potyviridae*)

**Authors:** Inoue-Nagata A.K. (alice.nagata@embrapa.br), Jordan R., Kreuze J.F., Li F., Lopez-Moya J.J., Mäkinen K., Ohshima K., Wylie S.J.

### Summary

**Taxonomic rank(s) affected**

Genus within the family *Potyviridae* and species within the genus *Potyvirus* and the newly proposed genus *Phragmivirus*

**Description of current taxonomy**

According to the ICTV Report chapter on *Potyviridae*, 12 genera are differentiated by biological criteria, mainly transmission by specific vectors, and by molecular data, in which members of different genera are <46% identical in nucleotide sequence. Members of different species have complete ORF sequences that are generally <76% identical in nucleotide sequence and <82% identical in amino acid sequence. In considering the evidence for new species or genera in the family *Potyviridae*, the Study Group will evaluate each new case based on complete- or near-complete genome sequence(s) together with host and biological characteristics.

**Proposed taxonomic change(s)**

Create one (1) new genus (*Phragmivirus*), two (2) new species in the genus *Phragmivirus* (*Phragmivirus phragmii* and *Phragmivirus spartinae*) and eight (8) new species in the genus *Potyvirus* (*Potyvirus aconiti*, *Potyvirus puerariae*, *Potyvirus alilii*, *Potyvirus parisflavitessellati*, *Potyvirus catharanthiflavitessellati*, *Potyvirus polygonatimaculae*, *Potyvirus crocitessellati* and *Potyvirus galanthi*).

**Justification**

The genomes of the proposed members in the new genus *Phragmivirus* share sequence identity below the threshold for genus differentiation in the family *Potyviridae*; members of the proposed species have a genome strategy typical of members of genus *Phragmivirus* (two species) and *Potyvirus* (eight species), and their nucleotide and amino acid sequences are below the threshold for species demarcation criteria for the genera.

**Submitted:** 11/06/24; **Revised:** 21/09/24

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.011P.Bromoviridae_4nsp.zip.</footnote>
<table><caption>**Table 12.** *Potyviridae*, 11 new taxa*</caption><thead><tr><th>Operation</th><th>Rank</th><th>New taxon name</th><th>Virus name</th><th>Exemplar</th></tr></thead><tbody><tr><td>New taxon</td><td>Species</td><td>Potyvirus aconiti</td><td>Aconitum virus 2</td><td>MZ389235</td></tr><tr><td>New taxon</td><td>Species</td><td>Potyvirus puerariae</td><td>kudzu chlorotic ring blotch virus</td><td>OQ148665</td></tr><tr><td>New taxon</td><td>Species</td><td>Potyvirus alilii</td><td>lily virus A</td><td>OR879085</td></tr><tr><td>New taxon</td><td>Species</td><td>Potyvirus parisflavitessellati</td><td>Paris yunnanensis mosaic chlorotic virus</td><td>ON871824</td></tr><tr><td>New taxon</td><td>Species</td><td>Potyvirus catharanthiflavitessellati</td><td>periwinkle mild yellow mosaic virus</td><td>PP382205</td></tr><tr><td>New taxon</td><td>Species</td><td>Potyvirus polygonatimaculae</td><td>Polygonatum kingianum mottle virus</td><td>ON428226</td></tr><tr><td>New taxon</td><td>Species</td><td>Potyvirus crocitessellati</td><td>saffron yellow mosaic virus</td><td>OK632024</td></tr><tr><td>New taxon</td><td>Species</td><td>Potyvirus galanthi</td><td>snowdrop virus Y</td><td>OP871788</td></tr><tr><td>New taxon</td><td>Genus</td><td>Phragmivirus</td><td></td><td></td></tr><tr><td>New taxon</td><td>Species</td><td>Phragmivirus phragmii</td><td>common reed chlorotic stripe virus</td><td>KY612317</td></tr><tr><td>New taxon</td><td>Species</td><td>Phragmivirus spartinae</td><td>Spartina mottle virus</td><td>MN788417</td></tr></tbody></table>

## 2024.013P.Secoviridae_1ng_2nsg_34nsp

**Title:** Create a new genus, two new subgenera and 34 new species in the family *Secoviridae* (*Picornavirales*)

**Authors:** Fuchs M. (mf13@cornell.edu), Hily J.-M., Petrzik K., Sanfaçon H., Stewart L., Thompson J.R., Van der Vlugt R.A.A., Wetzel T.

### Summary

**Taxonomic rank(s) affected**

Genus, subgenus, species

**Description of current taxonomy**

The recognition of new virus species is based on demarcation criteria in the family *Secoviridae* of <75% amino acid sequence identity in the coat protein (CP)(s) and/or <80% amino acid sequence identity in the conserved protease (Pro)-polymerase (Pol) region (from the protease CG motif to the polymerase GDD motif) and/or distinct plant hosts and biological properties.

**Proposed taxonomic change(s)**

Create one (1) new genus (*Mersevirus*), two (2) new subgenera in the genus *Waikavirus* (*Ritunrivirus* and *Actinidivirus*), create two (2) new species in the genus *Fabavirus* (*Fabavirus betavitis* and *Fabavirus cirssii*), create four (4) new species in the new genus *Mersevirus* (*Mersevirus mercurialis*, *Mersevirus paris*, *Mersevirus boehmeriae* and *Mersevirus jujubae*), create two (2) new species in the genus *Nepovirus* (*Nepovirus betaparis* and *Nepovirus mirae*), create three (3) new species in the genus *Sadwavirus* (*Sadwavirus cattleyae*, *Sadwavirus gymnemae* and *Sadwavirus chrysanthemi*), create three (3) new species in the genus *Torradovirus* (*Torradovirus physalis*, *Torradovirus nanorugosum* and *Torradovirus arctii*) and create 20 new species in the genus *Waikavirus* (*Waikavirus ajugae*, *Waikavirus anacycli*, *Waikavirus betacamelliae*, *Waikavirus eleocharis*, *Waikavirus hirtae*, *Waikavirus juglandis*, *Waikavirus ligustici*, *Waikavirus mertensiae*, *Waikavirus populi*, *Waikavirus pedicularis*, *Waikavirus primulae*, *Waikavirus querci*, *Waikavirus ranunculi*, *Waikavirus thymi*, *Waikavirus trifoccidentale*, *Waikavirus thapsiae*, *Waikavirus violae*, *Waikavirus carotae*, *Waikavirus celtis* and *Waikavirus pittospori*).

**Justification**

The proposed new genus *Mersevirus* is based on the distinct genome organization of *Mersevirus mercurialis*, *Mersevirus paris*, *Mersevirus boehmeriae* and *Mersevirus jujubae* with a Ham1 domain with predicted inosine triphosphate pyrophosphatase activity at the C-terminus of the RNA-directed RNA polymerase - a feature unique among members of the family *Secoviridae* - and a grouping on a monophyletic clade of the amino acid sequence of the CPs and conserved Pro-Pol region. The proposed new subgenus *Ritunrivirus* is based on a statistically supported single lineage of 22 distinct species in the genus *Waikavirus* defined by the amino acid sequence of the combined three CPs and the conserved Pro-Pol region. The proposed new subgenus *Actinidivirus* is based on a statistically supported single lineage of 16 distinct species in the genus *Waikavirus* defined by the

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.012P.Potyviridae_1ng_10nsp.zip.</footnote>
amino acid sequence of the combined 3 CPs and conserved Pro-Pol region. The creation of the proposed new 34 species is based on <75% amino acid sequence identity in the CP(s) and/or <80% amino acid sequence identity in the conserved Pro-Pol region (from the protease CG motif to the polymerase GDD motif) compared with members of classified species of the family *Secoviridae*.

Submitted: 10/06/24; Revised: 11/10/24

<table><caption>**Table 13.** *Secoviridae*, 37 new taxa*</caption><thead><tr><th>Operation</th><th>Rank</th><th>New taxon name</th><th>Virus name</th><th>Exemplar</th></tr></thead><tbody><tr><td>New taxon</td><td>Genus</td><td>Mersevirus</td><td></td><td></td></tr><tr><td>New taxon</td><td>Species</td><td>Mersevirus boehmeriae</td><td>Boehmeria nivea secovirus</td><td>BK061322; BK061323</td></tr><tr><td>New taxon</td><td>Species</td><td>Mersevirus jujubae</td><td>jujube-associated virus 1</td><td>MT375548; MT375547</td></tr><tr><td>New taxon</td><td>Species</td><td>Mersevirus mercurialis</td><td>Mercurialis secovirus 1</td><td>OR544055; OR544056</td></tr><tr><td>New taxon</td><td>Species</td><td>Mersevirus paris</td><td>Paris polyphylla secovirus 2</td><td>BK061330; BK061331</td></tr><tr><td>New taxon</td><td>Subgenus</td><td>Actinidivirus</td><td></td><td></td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus betacamelliae</td><td>Camellia virus B</td><td>BK062984</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus carotae</td><td>carrot psyllid-borne associated virus</td><td>OM801008</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus celtis</td><td>hackberry virus A</td><td>OP533794</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus hirtae</td><td>Ficus hirta waikavirus</td><td>BK062987</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus juglandis</td><td>Juglans nigra waikavirus</td><td>BK062989</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus pittospori</td><td>Pittosporum tobira virus</td><td>OR659471</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus populi</td><td>Populus alba waikavirus</td><td>BK062992</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus querci</td><td>Quercus robur waikavirus</td><td>BK062996</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus trifoccidentale</td><td>Trifolium occidentale waikavirus</td><td>BK063000</td></tr><tr><td>New taxon</td><td>Subgenus</td><td>Ritunrivirus</td><td></td><td></td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus ajugae</td><td>Ajuga reptans waikavirus</td><td>BK062980</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus anacycli</td><td>Anacyclus depressus waikavirus</td><td>BK062979</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus eleocharis</td><td>Eleocharis dulcis waikavirus</td><td>BK062986</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus ligustici</td><td>Ligusticum chuanxiong waikavirus</td><td>BK062990</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus mertensiae</td><td>Mertensia paniculata waikavirus</td><td>BK062991</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus pedicularis</td><td>Pedicularis rex waikavirus</td><td>BK062993</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus primulae</td><td>Primula vulgaris waikavirus</td><td>BK062995</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus ranunculi</td><td>Ranunculus cantoniensis waikavirus</td><td>BK062997</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus thapsiae</td><td>Thapsia villosa waikavirus</td><td>BK063001</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus thymi</td><td>Thymus vulgaris waikavirus</td><td>BK062999</td></tr><tr><td>New taxon</td><td>Species</td><td>Waikavirus violae</td><td>Viola inconspicua waikavirus</td><td>BK063002</td></tr><tr><td>New taxon</td><td>Species</td><td>Fabavirus betavitis</td><td>grapevine secovirus</td><td>OR947508; OR947509</td></tr><tr><td>New taxon</td><td>Species</td><td>Fabavirus cirsii</td><td>Cirsium virus A</td><td>OP794357; OP794358</td></tr><tr><td>New taxon</td><td>Species</td><td>Nepovirus betaparis</td><td>Paris polyphylla secovirus 1</td><td>BK061328; BK061329</td></tr><tr><td>New taxon</td><td>Species</td><td>Nepovirus mirae</td><td>Prunus mira virus A</td><td>BK064709; BK064710</td></tr><tr><td>New taxon</td><td>Species</td><td>Sadwavirus cattleyae</td><td>Cattleya purple ringspot virus</td><td>OR439368; OR439369</td></tr></tbody></table>

Continued
<table><caption>**Table 13. Continued**</caption><thead><tr><th>Operation</th><th>Rank</th><th>New taxon name</th><th>Virus name</th><th>Exemplar</th></tr></thead><tbody><tr><td>New taxon</td><td>Species</td><td>Sadwavirus gymnemae</td><td>Gymnema sylvestre virus 1</td><td>BK062888; BK062889</td></tr><tr><td>New taxon</td><td>Species</td><td>Sadwavirus chysanthemi</td><td>chrysanthemum sadwavirus</td><td>OR413567; OR413568</td></tr><tr><td>New taxon</td><td>Species</td><td>Torradovirus arctii</td><td>burdock mosaic virus</td><td>OQ087134; OQ087135</td></tr><tr><td>New taxon</td><td>Species</td><td>Torradovirus nanorugosum</td><td>potato rugose stunting virus</td><td>ON871623; ON871624</td></tr><tr><td>New taxon</td><td>Species</td><td>Torradovirus physalis</td><td>Physalis torrado virus</td><td>MZ357183; MZ357184</td></tr></tbody></table>

<table><caption>**Table 14. Secoviridae, 13 move taxa***</caption><thead><tr><th>Operation</th><th>Rank</th><th>Taxon name</th><th>Old parent taxon</th><th>New parent taxon</th></tr></thead><tbody><tr><td>Move taxon</td><td>Species</td><td>Waikavirus actinidiae</td><td>Waikavirus</td><td>Subgenus Actinidivirus</td></tr><tr><td>Move taxon</td><td>Species</td><td>Waikavirus camelliae</td><td>Waikavirus</td><td>Subgenus Actinidivirus</td></tr><tr><td>Move taxon</td><td>Species</td><td>Waikavirus diospyri</td><td>Waikavirus</td><td>Subgenus Actinidivirus</td></tr><tr><td>Move taxon</td><td>Species</td><td>Waikavirus liegense</td><td>Waikavirus</td><td>Subgenus Actinidivirus</td></tr><tr><td>Move taxon</td><td>Species</td><td>Waikavirus rhododendri</td><td>Waikavirus</td><td>Subgenus Actinidivirus</td></tr><tr><td>Move taxon</td><td>Species</td><td>Waikavirus brassicae</td><td>Waikavirus</td><td>Subgenus Ritunrivirus</td></tr><tr><td>Move taxon</td><td>Species</td><td>Waikavirus campanulae</td><td>Waikavirus</td><td>Subgenus Ritunrivirus</td></tr><tr><td>Move taxon</td><td>Species</td><td>Waikavirus lactucae</td><td>Waikavirus</td><td>Subgenus Ritunrivirus</td></tr><tr><td>Move taxon</td><td>Species</td><td>Waikavirus oryzae</td><td>Waikavirus</td><td>Subgenus Ritunrivirus</td></tr><tr><td>Move taxon</td><td>Species</td><td>Waikavirus ribesnigri</td><td>Waikavirus</td><td>Subgenus Ritunrivirus</td></tr><tr><td>Move taxon</td><td>Species</td><td>Waikavirus rosae</td><td>Waikavirus</td><td>Subgenus Ritunrivirus</td></tr><tr><td>Move taxon</td><td>Species</td><td>Waikavirus trifolii</td><td>Waikavirus</td><td>Subgenus Ritunrivirus</td></tr><tr><td>Move taxon</td><td>Species</td><td>Waikavirus zeae</td><td>Waikavirus</td><td>Subgenus Ritunrivirus</td></tr></tbody></table>

## 2024.014P.Rhabdoviridae_2nsp

**Title:** Create one new species in the genus *Alphanucleorhabdovirus* and one species in the genus *Betanucleorhabdovirus*, subfamily *Betarhabdovirinae* (*Mononegavirales: Rhabdoviridae*)

**Authors:** Bejerman N. (bejerman.nicolas@inta.gob.ar), Debat H., Dietzgen R., Freitas-Astua J., Kondo H., Ramos-Gonzalez P., Whitfield A., Walker P.

### Summary

#### Taxonomic rank(s) affected

Species

#### Description of current taxonomy

Viruses classified in the genera *Alphanucleorhabdovirus* and *Betanucleorhabdovirus* infect a wide range of plants, and the assignment of viruses to these genera is based on the placement of the viruses on maximum likelihood trees inferred from complete L protein sequences.

#### Proposed taxonomic change(s)

Add one (1) new species to the genus *Alphanucleorhabdovirus* (*Alphanucleorhabdovirus babaci*) and one (1) new species in the genus *Betanucleorhabdovirus* (*Betanucleorhabdovirus paridis*).

#### Justification

Two novel rhabdoviruses were identified in babaco [17] and *Paris polyphylla* [18]. The characterization of both viruses showed that the babaco-associated virus should be classified as a novel species within the genus *Alphanucleorhabdovirus*, while the *P. polyphylla*-associated virus should be classified as a novel species within the genus *Betanucleorhabdovirus*.

**Submitted:** 10/06/24

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.013P.Secoviridae_1ng_2nsg_34nsp.zip.</footnote>
<table><caption>**Table 15.** *Rhabdoviridae*, 2 new taxa*</caption><thead><tr><th>Operation</th><th>Rank</th><th>New taxon name</th><th>Virus name</th><th>Exemplar</th></tr></thead><tbody><tr><td>New taxon</td><td>Species</td><td>Alphanucleorhabdovirus babaci</td><td>babaco nucleorhabdovirus 1</td><td>OQ256237</td></tr><tr><td>New taxon</td><td>Species</td><td>Betanucleorhabdovirus paridis</td><td>Paris yunnanensis rhabdovirus 1</td><td>OL439478</td></tr></tbody></table>

## 2024.015P.Rhabdoviridae_Cytorhabdovirus_splitgen

**Title:** Abolish one genus and create three new genera to include 98 new species in the subfamily *Betarhabdovirinae* (*Mononegavirales: Rhabdoviridae*)

**Authors:** Bejerman N. (bejerman.nicolas@inta.gob.ar), Debat H., Dietzgen R., Freitas-Astua J., Kondo H., Ramos-Gonzalez P., Whitfield A., Walker P.

### Summary

**Taxonomic rank(s) affected**

Genus and species

**Description of current taxonomy**

Viruses classified in the genus *Cytorhabdovirus* infect a wide range of plants, and the assignment of viruses to this genus is based on the placement of the viruses on maximum likelihood trees inferred from complete L protein sequences.

**Proposed taxonomic change(s)**

Abolish the genus *Cytorhabdovirus* and add three (3) new genera (*Alphacytorhabdovirus*, *Betacytorhabdovirus* and *Gammacytorhabdovirus*), including 98 new species in the subfamily *Betarhabdovirinae* (*Mononegavirales: Rhabdoviridae*). Abolish four (4) *Cytorhabdovirus* species and reassign the remaining species to the new genera.

**Justification**

Recently, 98 new putative cytorhabdoviruses were discovered. The phylogenetic relationships of the now significantly expanded number of known cytorhabdoviruses provide support for splitting the genus *Cytorhabdovirus* into three genera that represent distinct evolutionary lineages to be named *Alphacytorhabdovirus*, *Betacytorhabdovirus* and *Gammacytorhabdovirus*. Also, it is proposed that four *Cytorhabdovirus* species be abolished based on the lack of sequence data for them.

**Submitted:** 10/06/24; **Revised:** 03/10/24

<caption>**Table 16.** *Rhabdoviridae*, 101 new taxa*. Table too large, see supplementary information sheet supp_info_tab_16</caption>

<caption>**Table 17.** *Rhabdoviridae*, 51 move; rename taxa*. Table too large, see supplementary information sheet supp_info_tab_17</caption>

<table><caption>**Table 18.** *Rhabdoviridae*, 4 abolish taxa*</caption><thead><tr><th>Operation</th><th>Rank</th><th>Abolished taxon name</th></tr></thead><tbody><tr><td>Abolish taxon</td><td>Species</td><td>Cytorhabdovirus brassicae</td></tr><tr><td>Abolish taxon</td><td>Species</td><td>Cytorhabdovirus festucae</td></tr><tr><td>Abolish taxon</td><td>Species</td><td>Cytorhabdovirus sonchi</td></tr><tr><td>Abolish taxon</td><td>Species</td><td>Cytorhabdovirus tritici</td></tr></tbody></table>

## 2024.016P.Rhabdoviridae_1ngen_5nsp

**Title:** Create one new genus to include five new species in the subfamily *Betarhabdovirinae* (*Mononegavirales: Rhabdoviridae*)

**Authors:** Bejerman N. (bejerman.nicolas@inta.gob.ar), Debat H., Dietzgen R.G., Freitas-Astua J., Kondo H., Ramos-Gonzalez P., Whitfield A., Walker P.

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.014P.Rhabdoviridae_2nsp.zip.</footnote>

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.015P.Rhabdoviridae_Cytorhabdovirus_splitgen.zip.</footnote>
# Summary

## Taxonomic rank(s) affected

Genus and species

## Description of current taxonomy

Almost all viruses classified in the subfamily *Betarhabdovirinae*, family *Rhabdoviridae*, are unsegmented, but plant-associated rhabdoviruses with bi-segmented genomes have also been identified and included in the genera *Varicosavirus* and *Dichorhavirus* within the subfamily *Betarhabdovirinae*. The assignment of viruses to these genera is based on the placement of the viruses on maximum likelihood trees inferred from complete L protein sequences.

## Proposed taxonomic change(s)

Add one (1) new genus to include five (5) new species in the subfamily *Betarhabdovirinae*, family *Rhabdoviridae*. These new species (*Trirhavirus alni*, *Trirhavirus chrysanthemi*, *Trirhavirus erysimi*, *Trirhavirus medicagonis* and *Trirhavirus picridis*) are placed in a new genus named *Trirhavirus*.

## Justification

Five novel rhabdoviruses were identified in *Alnus rubra*, *Chrysanthemum morifolium*, *Erysimum nevadense*, *Medicago sativa* and *Picris echioioides* [19]. Unexpectedly, these five viruses have tri-segmented genomes, which represent the first tri-segmented genomes among rhabdoviruses. The characterization of these five viruses showed they should be classified as members of novel species within a novel genus within the subfamily *Betarhabdovirinae*, family *Rhabdoviridae*, for which the name *Trirhavirus* is proposed [19].

**Submitted:** 10/06/24

<table><caption>**Table 19.** *Rhabdoviridae*, 6 new taxa*</caption><thead><tr><th>Operation</th><th>Rank</th><th>New taxon name</th><th>Virus name</th><th>Exemplar</th></tr></thead><tbody><tr><td>New taxon</td><td>Genus</td><td>Trirhavirus</td><td></td><td></td></tr><tr><td>New taxon</td><td>Species</td><td>Trirhavirus alni</td><td>Alnus trirhavirus 1</td><td>BK064247; BK064248; BK064249</td></tr><tr><td>New taxon</td><td>Species</td><td>Trirhavirus chrysanthemi</td><td>chrysanthemum trirhavirus 1</td><td>BK064250; BK064251; BK064252</td></tr><tr><td>New taxon</td><td>Species</td><td>Trirhavirus erysimi</td><td>Erysimum trirhavirus 1</td><td>BK064253; BK064254; BK064255</td></tr><tr><td>New taxon</td><td>Species</td><td>Trirhavirus medicagonis</td><td>Medicago trirhavirus</td><td>BK064256; BK064257; BK064258</td></tr><tr><td>New taxon</td><td>Species</td><td>Trirhavirus picridis</td><td>Picris trirhavirus 1</td><td>BK064259; BK064260; BK064261</td></tr></tbody></table>

# 2024.017P.Tombusviridae_abolishsp

**Title:** Abolish five unassigned species in the family *Tombusviridae*

**Authors:** Scheets K. (kay.scheets@okstate.edu), Hernández C., Jordan R., Miller W.A., Prigigallo M.I., Rubino L.

# Summary

## Taxonomic rank(s) affected

Species in the family *Tombusviridae*

## Description of current taxonomy

*Ahlum waterborne virus*, *Bean mild mosaic virus*, *Chenopodium necrosis virus*, *Cucumber soil-borne virus* and *Weddel waterborne virus* are currently classified as unassigned species in the family *Tombusviridae*.

## Proposed taxonomic change(s)

Abolish five (5) species.

## Justification

The proposed abolishment of these species is based on the lack of sequence data for them.

**Submitted:** 21/06/24

<table><caption>**Table 20.** *Tombusviridae*, 5 abolish taxa*</caption><thead><tr><th>Operation</th><th>Rank</th><th>Abolished taxon name</th></tr></thead><tbody><tr><td>Abolish taxon</td><td>Species</td><td>Ahlum waterborne virus</td></tr><tr><td>Abolish taxon</td><td>Species</td><td>Bean mild mosaic virus</td></tr></tbody></table>

Continued

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.016PRhabdoviridae_1ngen_5nsp.zip.</footnote>
<table><caption>**Table 20. Continued**</caption><thead><tr><td>Operation</td><td>Rank</td><td>Abolished taxon name</td></tr></thead><tbody><tr><td>Abolish taxon</td><td>Species</td><td>Chenopodium necrosis virus</td></tr><tr><td>Abolish taxon</td><td>Species</td><td>Cucumber soil-borne virus</td></tr><tr><td>Abolish taxon</td><td>Species</td><td>Weddel waterborne virus</td></tr></tbody></table>

## 2024.018P.Tombusviridae_1nsp

**Title:** Create one new species in the genus *Machlomovirus* (Tolivirales: Tombusviridae)

**Authors:** Maclot F., Massart S. (sebastien.massart@uliege.be)

### Summary

**Taxonomic rank(s) affected**

Genus *Machlomovirus* (Tolivirales: Tombusviridae)

**Description of current taxonomy**

One virus species, *Machlomovirus zeae*, is currently described within the genus *Machlomovirus*.

**Proposed taxonomic change(s)**

Add a second species (*Machlomovirus liegense*) to the genus *Machlomovirus* to accommodate a recently identified virus in the wild grass common bent (*Agrostis capillaris*), tentatively named Poaceae Liege machlomovirus.

**Justification**

Analysis of Poaceae Liege machlomovirus genomic structure and phylogenetic analyses of its complete sequence and specific genes (polymerase and coat protein) placed this virus as a member of a novel species in the genus *Machlomovirus*.

**Submitted:** 21/06/24

<table><caption>**Table 21.** *Tombusviridae*, 1 new taxon*</caption><thead><tr><td>Operation</td><td>Rank</td><td>New taxon name</td><td>Virus name</td><td>Exemplar</td></tr></thead><tbody><tr><td>New taxon</td><td>Species</td><td><i>Machlomovirus liegense</i></td><td>Poaceae Liege machlomovirus</td><td>ON137711</td></tr></tbody></table>

## 2024.019P.Closteroviridae_1nsp

**Title:** Create one new species in the genus *Velarivirus* (order *Martellivirales*, family *Closteroviridae*)

**Authors:** Fontdevila N., Massart S. (sebastien.massart@uliege.be)

### Summary

**Taxonomic rank(s) affected**

Genus *Velarivirus* (order *Martellivirales*, family *Closteroviridae*)

**Description of current taxonomy**

The family *Closteroviridae* comprises plant viruses with long, filamentous particles (650–2,200 nm in length) and large positive-sense RNA genomes (mono-, bi- or tripartite). There are 57 recognized species in the family, classified in 1 of the 7 existing genera (*Ampelovirus*, *Bluvavirus*, *Closterovirus*, *Crinivirus*, *Menthavirus*, *Olivavirus* and *Velarivirus*). Within the genus *Velarivirus*, there are currently eight recognized species.

**Proposed taxonomic change(s)**

The authors propose adding a ninth species in the genus *Velarivirus*, named *Velarivirus gembloutense*, to classify the recently identified virus *Pyrus* virus A in pear trees (*Pyrus communis* L.).

**Justification**

Analysis of the genomic structure of *Pyrus* virus A and subsequent phylogenetic analyses of the specific HSP70h gene placed this virus as a member of a novel species of the genus *Velarivirus* within the family *Closteroviridae*.

**Submitted:** 21/06/24; **Revised:** 07/10/24

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.018P.Tombusviridae_abolishsp.zip.</footnote>

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.018P.Tombusviridae_1nsp.zip.</footnote>
<table><caption>**Table 22.** *Closteroviridae*, 1 new taxon*</caption><thead><tr><th>Operation</th><th>Rank</th><th>New taxon name</th><th>Virus name</th><th>Exemplar</th></tr></thead><tbody><tr><td>New taxon</td><td>Species</td><td>Velarivirus gembloutense</td><td>Pyrus virus A</td><td>OR887735</td></tr></tbody></table>

*Source/full text: https://ictv.global/ictv/proposals/2024.019P.Closteroviridae_1nsp.zip.

## 2024.021P.Riboviria_1nord

**Title:** Create one new unassigned order in realm *Riboviria*, and three new families for four currently unassigned genera of plant satellite viruses

**Authors:** Krupovic M. (mart.krupovic@pasteur.fr), Fischer M.G., Kuhn J.H.

### Summary

**Taxonomic rank(s) affected**

Species, genus, family

**Description of current taxonomy**

*Riboviria:* unassigned family *Sarthroviridae* and genera *Albetovirus*, *Aumaivirus*, *Papanivirus* and *Virtovirus*.

**Proposed taxonomic change(s)**

*Riboviria:* *Tombendovirales* to include family *Sarthroviridae* and two (2) new families, *Pamosaviridae* (*Papanivirus*) and *Tomosaviridae* (*Virtovirus*); *Riboviria:* *Tonesaviridae* (*Albetovirus*, *Aumaivirus*); renaming of all species in the four genera to fulfil the ICTV's binomial naming mandate.

**Justification**

Structural comparison of the satellite virus capsid proteins indicates that these viruses are not monophyletic and form two distinct assemblages.

**Submitted:** 21/06/24

<table><caption>**Table 23.** *Riboviria*, 6 rename taxa*</caption><thead><tr><th>Operation</th><th>Rank</th><th>New taxon name</th><th>Previous taxon name</th></tr></thead><tbody><tr><td>Rename taxon</td><td>Species</td><td>Papanivirus panici</td><td>Panicum papanivirus 1</td></tr><tr><td>Rename taxon</td><td>Species</td><td>Virtovirus tabaci</td><td>Tobacco virtovirus 1</td></tr><tr><td>Rename taxon</td><td>Species</td><td>Albetovirus alphatabaci</td><td>Tobacco albetovirus 1</td></tr><tr><td>Rename taxon</td><td>Species</td><td>Albetovirus betatabaci</td><td>Tobacco albetovirus 2</td></tr><tr><td>Rename taxon</td><td>Species</td><td>Albetovirus gammatabaci</td><td>Tobacco albetovirus 3</td></tr><tr><td>Rename taxon</td><td>Species</td><td>Aumaivirus maidis</td><td>Maize aumaivirus 1</td></tr></tbody></table>

<table><caption>**Table 24.** *Riboviria*, 5 move taxa*</caption><thead><tr><th>Operation</th><th>Rank</th><th>Taxon name</th><th>New parent taxon</th><th>Old parent taxon</th></tr></thead><tbody><tr><td>Move taxon</td><td>Family</td><td>Sarthroviridae</td><td>Tombendovirales</td><td>Riboviria</td></tr><tr><td>Move taxon</td><td>Genus</td><td>Papanivirus</td><td>Pamosaviridae</td><td>Riboviria</td></tr><tr><td>Move taxon</td><td>Genus</td><td>Virtovirus</td><td>Tomosaviridae</td><td>Riboviria</td></tr><tr><td>Move taxon</td><td>Genus</td><td>Albetovirus</td><td>Tonesaviridae</td><td>Riboviria</td></tr><tr><td>Move taxon</td><td>Genus</td><td>Aumaivirus</td><td>Tonesaviridae</td><td>Riboviria</td></tr></tbody></table>

<table><caption>**Table 25.** *Riboviria*, 4 new taxa*</caption><thead><tr><th>Operation</th><th>Rank</th><th>New taxon name</th></tr></thead><tbody><tr><td>New taxon</td><td>Order</td><td>Tombendovirales</td></tr><tr><td>New taxon</td><td>Family</td><td>Pamosaviridae</td></tr></tbody></table>

Continued
<table><caption>**Table 25. Continued**</caption><thead><tr><td>Operation</td><td>Rank</td><td>New taxon name</td></tr></thead><tbody><tr><td>New taxon</td><td>Family</td><td>Tomosaviridae</td></tr><tr><td>New taxon</td><td>Family</td><td>Tonesaviridae</td></tr></tbody></table>

## 2024.022P.Betaflexiviridae_abolishsp

**Title:** Abolish one unassigned species in the family *Betaflexiviridae*

**Authors:** Nagata T. (tatsuya@unb.br), Blouin A., Candresse T., Cao M., Cho W.K., Constable F., Sabanadzovic S., Saldarelli P., Tzanetakis I., Villamor D.

### Summary

**Taxonomic rank(s) affected**

Species in the family *Betaflexiviridae*

**Description of current taxonomy**

*Banana virus X* is currently classified as an unassigned species in the family *Betaflexiviridae*.

**Proposed taxonomic change(s)**

Abolish one (1) species.

**Justification**

The proposed abolishment of this betaflexivirid species is based on the lack of Rep sequence data.

**Submitted:** 30/06/24

<table><caption>**Table 26.** *Betaflexiviridae*, 1 abolish taxon*</caption><thead><tr><td>Operation</td><td>Rank</td><td>Abolished taxon name</td></tr></thead><tbody><tr><td>Abolish taxon</td><td>Species</td><td>Banana virus X</td></tr></tbody></table>

## 2024.023P.Solemoviridae*_rename_sp*

**Title:** Rename two species in the genus *Sobemovirus* (family *Solemoviridae*)

**Authors:** Sômera M. (merike.somera@taltech.ee), Fargette D., Filardo F., Ghafari M., Hebrard E., Sarmiento C., Thomas J.E.

### Summary

**Taxonomic rank(s) affected**

Species

**Description of current taxonomy**

*Riboviria: Orthornavirae: Pisuviricota: Pisoniviricetes: Sobelivirales: Solemoviridae: Sobemovirus: Cocksfoot mottle virus. Riboviria: Orthornavirae: Pisuviricota: Pisoniviricetes: Sobelivirales: Solemoviridae: Sobemovirus: Sobemovirus smamv.*

**Proposed taxonomic change(s)**

Renaming of *Cocksfoot mottle virus* and *Sobemovirus smamv*.

**Justification**

Renaming of *Cocksfoot mottle virus* to fulfil the ICTV's binomial naming mandate. Renaming of *Sobemovirus smamv* for consistency with other species in the family *Solemoviridae*.

**Submitted:** 28/06/24; **Revised:** 07/10/24

<table><caption>**Table 27.** *Solemoviridae*, 2 rename taxa*</caption><thead><tr><td>Operation</td><td>Rank</td><td>New taxon name</td><td>Previous taxon name</td></tr></thead><tbody><tr><td>Rename taxon</td><td>Species</td><td>Sobemovirus CFMV</td><td>Cocksfoot mottle virus</td></tr><tr><td>Rename taxon</td><td>Species</td><td>Sobemovirus SMAMV</td><td>Sobemovirus smamv</td></tr></tbody></table>

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.021P.Riboviria_1nord.zip.</footnote>

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.022P.Betaflexiviridae_abolishsp.zip.</footnote>

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.023P.Solemoviridaeaholdsp.zip.</footnote>
2024.024P.Tymoviridae_abolish_sp

**Title:** Abolish two unassigned species in the family *Tymoviridae*

**Authors:** Hammond R. (rose.hammond@usda.gov), Abrahamian P., Bejerman N., Mollov D., Nagata T., Sabanadzovic S.

**Summary**

**Taxonomic rank(s) affected**

Species in the family *Tymoviridae*

**Description of current taxonomy**

*Bombyx mori* latent virus and *Poinsettia mosaic virus* are currently classified as unassigned species in the family *Tymoviridae*.

**Proposed taxonomic change(s)**

Abolish two (2) species.

**Justification**

*Bombyx mori* latent virus and *Poinsettia mosaic virus* are unassigned species in the family *Tymoviridae* which cannot be assigned to a genus because of the lack of genome sequence. Therefore, it is not possible to comply with the ICTV mandate of a binomial format for virus species and it is proposed that these tymovirid species be abolished.

**Submitted:** 14/07/24

<table><caption>**Table 28.** *Tymoviridae*, 2 abolish taxa*</caption><thead><tr><td>Operation</td><td>Rank</td><td>Abolished taxon name</td></tr></thead><tbody><tr><td>Abolish taxon</td><td>Species</td><td><i>Bombyx mori</i> latent virus</td></tr><tr><td>Abolish taxon</td><td>Species</td><td><i>Poinsettia mosaic virus</i></td></tr></tbody></table>

**Author affiliations:** ¹Istituto per la Protezione Sostenibile delle Piante, CNR, Bari, Italy; ²USDA-ARS, BARC, National Germplasm Resources Laboratory, Beltsville, MD, USA; ³Liaoning Key Laboratory of Urban Integrated Pest Management and Ecological Security, Shenyang University, Dadong, Shenyang, Liaoning, PR China; ⁴Centro de Edafología y Biología Aplicada del Segura-CSIC, Murcia, Spain; ⁵Department of Molecular and Structural Biochemistry, North Carolina State University, Raleigh, NC, USA; ⁶Unidad de Fitopatología y Modelización Agrícola (UFYMA) INTA-CONICET, Buenos Aires, Argentina; ⁷Plant Protection Department, Agroscope, Nyon, Switzerland; ⁸UMR 1332 Biologie du Fruit et Pathologie, University of Bordeaux, INRAE, Domaine de la Grande Ferrade, 71 Avenue Edouard Bourlaux, CS 20032, 33882 Villenave d'Ornon Cedex, France; ⁹Margarita Salas Center for Biological Research (CIB-CSIC) Spanish Council for Scientific Research (CSIC), Madrid, Spain; ¹⁰National Citrus Engineering and Technology Research Center, Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Citrus Research Institute, Southwest University, Beibei, Chongqing, PR China; ¹¹Department of Plant Sciences, University of Cambridge, Cambridge, UK; ¹²Agriculture and Life Sciences Research Institute, Kangwon National University, Chuncheon, Republic of Korea; ¹³Agriculture Victoria Research, Department of Energy, Environment and Climate Action and School of Applied Systems Biology, La Trobe University, Bundoora, Australia; ¹⁴University of Delhi South Campus, Benito Juárez Road, New Delhi, India; ¹⁵Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia QLD, Australia; ¹⁶CIHEAM, Istituto Agronomico Mediterraneo of Bari, Via Ceglie 9, Valenzano (BA), Italy; ¹⁷Virus South Data, CDV 230980, La Mure, France; ¹⁸Queensland Department of Primary Industries, Brisbane, Australia; ¹⁹Max Planck Institute for Marine Microbiology, Bremen, Germany; ²⁰Fera Science Ltd (Fera), York Biotech Campus, Sand Hutton, York, UK; ²¹Embrapa Cassava and Fruits, Brazilian Agricultural Research Corporation, Cruz das Almas, Brazil; ²²Plant Pathology, Cornell University, Geneva, NY, USA; ²³Department of Biology, University of Oxford, Oxford, UK; ²⁴Swedish University of Agriculture, Almas Allé 5, Uppsala, Sweden; ²⁵USDA-ARS, USNA, Floral and Nursery Plants Research Unit, Beltsville, MD, USA; ²⁶USDA-ARS, BARC, Molecular Plant Pathology Laboratory, Beltsville, MD, USA; ²⁷Institute of Plant Protection-NRI, ul. Wt. Węgorka 20, Poznań, Poland; ²⁸PHIM Plant Health Institute, University of Montpellier, INRAE, CIRAD, IRD, Institute Agro, Montpellier, France; ²⁹Instituto de Biología Molecular y Celular de Plantas (IBMCP), Universitat Politècnica de Valencia-CSIC, Valencia, Spain; ³⁰Institut Français de la Vigne et du Vin, Le Grau du Roi, France; ³¹Vali-e-Asr University of Rafsanjan, Department of Plant Protection, Rafsanjan, Iran; ³²Retired from John Innes Centre, Norwich, UK; ³³Embrapa Hortaliças, Brasília, DF, Brazil; ³⁴Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan; ³⁵International Potato Center (CIP), Lima, Peru; ³⁶Institut Pasteur, Université Paris Cité, CNRS UMR6047, Archaeal Virology Unit, Paris, France; ³⁷Institute for Plant Protection, NARO, 2-1-18, Kannondai, Tsukuba, Japan; ³⁸Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD, USA; ³⁹Department of Biological Sciences, University of Toledo, Toledo, OH, USA; ⁴⁰CIRAD, UMR PVBMT, Saint Pierre, La Réunion, France; ⁴¹State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, PR China; ⁴²Institute of Plant Virology, Ningbo University, Ningbo, PR China; ⁴³Instituto de Patología Vegetal (IPAVE), INTA, Unidad de Fitopatología y Modelización Agrícola (UFYMA) INTA-CONICET, Córdoba, Argentina; ⁴⁴Centre for Research in Agricultural Genomics, CRAG (CSIC-IRTA-UAB-UB), Barcelona, Spain; ⁴⁵Department of Agricultural Sciences, University of Helsinki, Helsinki, Finland; ⁴⁶Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa; ⁴⁷Plant Pathology Laboratory, TERRA Gembloux Agro-Bio Tech, University of Liège, Liège, Belgium; ⁴⁸Department of Plant Pathology, Entomology and Microbiology, Iowa State University, Ames, IA, USA; ⁴⁹Department of Plant Protection, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran; ⁵⁰USDA-APHIS, Plant Protection and Quarantine, 4700 River Road, Riverdale, MD, USA; ⁵¹CIRAD, AGAP Institut; AGAP Institut, University of Montpellier; CIRAD, INRAE, Institut Agro, 34398 Montpellier, France; ⁵²Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, Brazil; ⁵³Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Consejo Superior de Investigaciones Científicas, Algarrobo-Costa, Málaga, Spain; ⁵⁴Utsunomiya University, Utsunomiya, Japan; ⁵⁵Oklahoma State University, Institute for Biosecurity & Microbial Forensics, 127 NRC Stillwater, OK, USA; ⁵⁶Saga University, Saga, Japan; ⁵⁷Department of Plant Pathology, Washington State University, Pullman, WA, USA; ⁵⁸Institute of Plant Molecular Biology, České Budějovice, Czech Republic; ⁵⁹Applied Molecular Biology Laboratory, Instituto Biológico de São Paulo, São Paulo, Brazil; ⁶⁰Embrapa Recursos Genéticos e Biotecnologia, Brasília, Brazil; ⁶¹Julius Kühn Institute, Federal Research Centre for Cultivated Plants,

<footnote>*Source/full text: https://ictv.global/ictv/proposals/2024.024P.Tymoviridae_abolish_sp.zip.</footnote>
Institute for Epidemiology and Pathogen Diagnostics, Braunschweig, Germany; ⁶²CIRAD, UMR PHIM, Montpellier, France; ⁶³Department of Agricultural Science and Plant Protection, Mississippi State University, Mississippi State, MS, USA; ⁶⁴Department of Cell Biology and Genetics, Faculty of Science, Palacký University Olomouc, Olomouc, Czech Republic; ⁶⁵Summerland Research and Development Centre, Agriculture and Agri-Food Canada, Summerland, Canada; ⁶⁶Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn, Estonia; ⁶⁷Strategic Planning Headquarters, NARO, 3-1-1 Kannondai, Tsukuba, Japan; ⁶⁸Department of Plant Pathology, Ecology and Evolution, Oklahoma State University, Stillwater, OK, USA; ⁶⁹Molecular Plant Pathology, University of Amsterdam, Amsterdam, Netherlands; ⁷⁰Natural Resources Institute, University of Greenwich, Central Avenue, Chatham Maritime, Kent, UK; ⁷¹Kochi Agricultural Research Center, Nankoku, Japan; ⁷²Currently unaffiliated; ⁷³CIRAD, UMR PVBMT & UMR PVBMT, Université de la Réunion, F 97410 Saint Pierre de La Réunion, France; ⁷⁴Plant Health and Environment Laboratory, 231 Morrin Rd, St. Johns, Auckland, New Zealand; ⁷⁵Council for Agricultural Research and Economics, Research Centre for Plant Protection and Certification, Rome, Italy; ⁷⁶Department of Entomology and Plant Pathology, Division of Agriculture, University of Arkansas System, Fayetteville, AR, USA; ⁷⁷INRAE, UR ASTRO, Domaine de Duclos, Petit Bourg, France; ⁷⁸Wageningen University and Research, Wageningen, Netherlands; ⁷⁹The Biodesign Center for Fundamental and Applied Microbiomics, Center for Evolution and Medicine, School of Life Sciences, Arizona State University, Tempe, AZ, USA; ⁸⁰Rijk Zwaan Breeding B.V., De Lier, Netherlands; ⁸¹Humboldt-Universität zu Berlin, Thaer-Institute of Agricultural and Horticultural Sciences, Unter den Linden 6, Berlin, Germany; ⁸²The University of Queensland, St Lucia, Australia; ⁸³Dienstleistungszentrum Ländlicher Raum Rheinpfalz, Breitenweg 71, Neustadt an der Weinstrasse, Germany; ⁸⁴North Carolina State University, Raleigh, NC, USA; ⁸⁵Food Futures Institute, Murdoch University, 90 South Street, Perth, Australia; ⁸⁶Dep. de Fitopatologia/BIOAGRO, Universidade Federal de Viçosa, Viçosa, Brazil.

**Keywords:** Actinidivirus; Ahlum waterborne virus; Albetovirus alphatabaci; Albetovirus betatabaci; Albetovirus gammatabaci; Allexivirus rehmanniae; Alphacytorhabdovirus; Alphacytorhabdovirus actinidiae; Alphacytorhabdovirus allii; Alphacytorhabdovirus alphaartemisiae; Alphacytorhabdovirus alphachysanthemi; Alphacytorhabdovirus alphafragariae; Alphacytorhabdovirus alphamedicagonis; Alphacytorhabdovirus alphapogostemi; Alphacytorhabdovirus alphaprimulae; Alphacytorhabdovirus alpharubi; Alphacytorhabdovirus alphatrifolii; Alphacytorhabdovirus alphawuhaninsectum; Alphacytorhabdovirus arctii; Alphacytorhabdovirus asclepiadis; Alphacytorhabdovirus baccharis; Alphacytorhabdovirus bacopae; Alphacytorhabdovirus betaartemisiae; Alphacytorhabdovirus betachrysanthemi; Alphacytorhabdovirus betafragariae; Alphacytorhabdovirus betamedicagonis; Alphacytorhabdovirus betapogostemi; Alphacytorhabdovirus betaprimulae; Alphacytorhabdovirus betarubi; Alphacytorhabdovirus betatrifolii; Alphacytorhabdovirus betawuhaninsectum; Alphacytorhabdovirus brassicicolae; Alphacytorhabdovirus cardaminis; Alphacytorhabdovirus chelidonii; Alphacytorhabdovirus cnidii; Alphacytorhabdovirus conopholis; Alphacytorhabdovirus coriandri; Alphacytorhabdovirus cynarae; Alphacytorhabdovirus daphnis; Alphacytorhabdovirus deltapogostemi; Alphacytorhabdovirus euphorbiae; Alphacytorhabdovirus fici; Alphacytorhabdovirus fragariarugosus; Alphacytorhabdovirus gammaartemisiae; Alphacytorhabdovirus gammapogostemi; Alphacytorhabdovirus gammawuhaninsectum; Alphacytorhabdovirus gei; Alphacytorhabdovirus glehniae; Alphacytorhabdovirus hederae; Alphacytorhabdovirus hyptisis; Alphacytorhabdovirus ilicis; Alphacytorhabdovirus keyenyatuberosum; Alphacytorhabdovirus lactucanecante; Alphacytorhabdovirus lactucamaculante; Alphacytorhabdovirus lycopersici; Alphacytorhabdovirus menthae; Alphacytorhabdovirus morindae; Alphacytorhabdovirus nymphaeae; Alphacytorhabdovirus ocimi; Alphacytorhabdovirus paludis; Alphacytorhabdovirus pastinacae; Alphacytorhabdovirus pelargonii; Alphacytorhabdovirus persimmon; Alphacytorhabdovirus phyllostachysis; Alphacytorhabdovirus pinelliae; Alphacytorhabdovirus plumaginis; Alphacytorhabdovirus pruri; Alphacytorhabdovirus ribes; Alphacytorhabdovirus rosae; Alphacytorhabdovirus sambuci; Alphacytorhabdovirus scutellariae; Alphacytorhabdovirus taraxaci; Alphacytorhabdovirus tolmieae; Alphacytorhabdovirus trichosanthei; Alphacytorhabdovirus tritici; Alphacytorhabdovirus utriculariae; Alphacytorhabdovirus wurfbainiae; Alphacytorhabdovirus zea; Aphanuleucorhabdovirus babaci; Aumaivirus maidis; Badnavirus fatsiae; Badnavirus tetainflathebormae; Badnavirus ziziphi; Banana virus X; Bean mild mosaic virus; Begomovirus alceacrisci; Begomovirus caboniensis; Begomovirus cajani; Begomovirus chuxiongense; Begomovirus flavintervenae; Begomovirus galii; Begomovirus hortuscrotoni; Begomovirus hyptidis; Begomovirus jatrophagunturense; Begomovirus muntiflavi; Begomovirus myanmarse; Begomovirus puerenae; Begomovirus pyrenicananthae; Begomovirus sidaflavittessellati; Begomovirus solanumaureusreti; Begomovirus solanumdistorsionis; Begomovirus solanumflavusreti; Begomovirus whitaniae; Betacytorhabdovirus; Betacytorhabdovirus alphabetulae; Betacytorhabdovirus alphacucurbitae; Betacytorhabdovirus alpharosae; Betacytorhabdovirus alphaturbaesoli; Betacytorhabdovirus alphazanthoxyli; Betacytorhabdovirus anthuri; Betacytorhabdovirus aristochloae; Betacytorhabdovirus colocasiae; Betacytorhabdovirus coryli; Betacytorhabdovirus cypripedii; Betacytorhabdovirus dryobalanopis; Betacytorhabdovirus durionis; Betacytorhabdovirus flaviyerbamate; Betacytorhabdovirus gammazanthoxyli; Betacytorhabdovirus gleditsiae; Betacytorhabdovirus glycinis; Betacytorhabdovirus glycyrrhizae; Betacytorhabdovirus gramineae; Betacytorhabdovirus hepaticae; Betacytorhabdovirus hordei; Betacytorhabdovirus howeae; Betacytorhabdovirus ipomoeae; Betacytorhabdovirus ixeris; Betacytorhabdovirus justiceiae; Betacytorhabdovirus kobresiae; Betacytorhabdovirus leucadendri; Betacytorhabdovirus lycii; Betacytorhabdovirus mangonis; Betacytorhabdovirus maydis; Betacytorhabdovirus maysflavostriatis; Betacytorhabdovirus mori; Betacytorhabdovirus nitriariae; Betacytorhabdovirus oryzae; Betacytorhabdovirus panici; Betacytorhabdovirus passiflorae; Betacytorhabdovirus pentaphragmae; Betacytorhabdovirus phellodendri; Betacytorhabdovirus populi; Betacytorhabdovirus puerariae; Betacytorhabdovirus rubeckae; Betacytorhabdovirus schiedeae; Betacytorhabdovirus sesami; Betacytorhabdovirus sophora; Betacytorhabdovirus tagetis; Betacytorhabdovirus tiliae; Betacytorhabdovirus trifolii; Betacytorhabdovirus viciae; Betacytorhabdovirus yerbamate; Betanucleorhabdovirus paridis; Bombyx mori latent virus; Botrexvirus duosclerotiniae; Botrexvirus unosclerotiniae; Capulavirus trifolii; Chenopodium necrosis virus; Cilevirus pistaciae; Citlodavirus apijamaicaense; Citlodavirus myricae; Cocksfoot mottle virus; Cucumber soil-borne virus; Cytorhabdovirus brassicae; Cytorhabdovirus festucae; Cytorhabdovirus sonchi; Cytorhabdovirus tritici; Emaravirus clematis; Fabavirus betavitis; Fabavirus cirsii; Gammacytorhabdovirus; Gammacytorhabdovirus alphacuscutae; Gammacytorhabdovirus alphafraxini; Gammacytorhabdovirus apiii; Gammacytorhabdovirus argyranthemi; Gammacytorhabdovirus betacuscutae; Gammacytorhabdovirus betafraxini; Gammacytorhabdovirus coptis; Gammacytorhabdovirus cypripedii; Gammacytorhabdovirus dauci; Gammacytorhabdovirus epipactis; Gammacytorhabdovirus gymnadeniae; Gammacytorhabdovirus heliospermae; Gammacytorhabdovirus hibisci; Gammacytorhabdovirus lonatis; Gammacytorhabdovirus lupinis; Gammacytorhabdovirus rhopalocnemis; Gammacytorhabdovirus silenis; Gammacytorhabdovirus trachyspermi; Higrevirus amurense; Higrevirus pistaciae; Ilarvirus ApNMV; Ilarvirus BabIV1; Ilarvirus TIV1; Ilarvirus ToNSV; Machlomovirus liegense; Maize aumaivirus 1; Mastrevirus bothriochloae; Mastrevirus brachypodiumprimi; Mastrevirus brachypodiumsecundi; Mastrevirus nomiae; Mastrevirus urochloareunionense; Mersevirus; Mersevirus boehmeriae; Mersevirus jujubae; Mersevirus mercurialis; Mersevirus paris; Nepovirus betaparis; Nepovirus mirae; Olpivirus lactucae; Orthotospovirus eustomae; Orthotospovirus fatsiae; Pamosaviridae; Panicum papanivirus 1; Papanivirus panici; Phragmivirus; Phragmivirus phragmii; Phragmivirus spartinae; Poinsettia mosaic virus; Potexvirus chaenostomae; Potexvirus.ecsadenni; Potexvirus ecscaricae; Potexvirus ecshibisci; Potyvirus aconiti; Potyvirus alilii; Potyvirus catharanthiflavittessellati; Potyvirus crocitessellati; Potyvirus galanthi; Potyvirus parisflavittessellati; Potyvirus polygonatimaculae; Potyvirus puerariae; Ritunrivirus; Sadwavirus cattleyae; Sadwavirus gymnemae; Sobemovirus CFMV; Sobemovirus SMAMV; Sobemovirus smamy; Tobacco albetovirus 1; Tobacco albetovirus 2; Tobacco albetovirus 3; Tobacco virtovirus 1; Tombendovirales; Tomosaviridae; Tonesaviridae; Torradovirus arctii; Torradovirus nanorugosum; Torradovirus physalis; Trirhavirus; Trirhavirus alni; Trirhavirus chrysanthemi; Trirhavirus erysimi; Trirhavirus medicagonis; Trirhavirus picridis; Velarivirus gembloutense; Virtovirus tabaci; Waikavirus; Waikavirus ajugae; Waikavirus anacycli; Waikavirus betacamelliae; Waikavirus carotae; Waikavirus celtis; Waikavirus eleocharis; Waikavirus hirtae; Waikavirus juglandis; Waikavirus ligustici; Waikavirus
mertensiae; Waikavirus pedicularis; Waikavirus pittospori; Waikavirus populi; Waikavirus primulae; Waikavirus querci; Waikavirus ranunculi; Waikavirus thapsiae; Waikavirus thymi; Waikavirus trifoccidentale; Waikavirus violae; Weddel waterborne virus.

**ICTV Taxonomy Summary Consortium:** Adriaenssens E.M.; Alfenas-Zerbini P.; Aylward F.O.; Hendrickson R.C.; Hughes H.R.; Lefkowitz E.J.; Lobocka M.; Mayne R.; Mushegian A.R.; Oksanen H.M.; Penzes J.; Reyes Muñoz A.; Robertson D.L.; Roux S.; Simmonds P.; Smith D.B.; Suzuki N.; Turner D.; Van Doorslaer K.

**Funding information**

L.R. and M.I.P. acknowledge that part of this work was granted by the European Commission - NextGenerationEU, Project SUS-MIRRI.IT "Strengthening the MIRRI Italian Research Infrastructure for Sustainable Bioscience and Bioeconomy", code n. IR0000005. H.M.O. was supported by the University of Helsinki and the Research Council of Finland by funding for FINStruct and Instruct Centre FI, part of Biocenter Finland and Instruct-ERIC and Horizon MSCA 101120407. This publication was supported by the National Institute of Allergy and Infectious Diseases of the National Institutes of Health under Award No. U24AI162625. This project was supported in part through a Laulima Government Solutions, LLC, prime contract with the U.S. National Institute of Allergy and Infectious Diseases (NIAID) under Contract No. HHSN272201800013C. J.H.K. performed this work as an employee of Tunnell Government Services (TGS), a subcontractor of Laulima Government Solutions, LLC, under Contract No. HHSN272201800013C. The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Department of Health and Human Services or of the institutions and companies affiliated with the authors, nor does mention of trade names, commercial products or organisations imply endorsement by the U.S. Government. P.Y.T. was funded by the European Regional Development Fund (ERDF, contract REU005756) and Région Réunion through the project "Dispositif de partenariat en santé et biodiversité". S.S. acknowledges support from the Mississippi Agricultural and Forestry Experiment Station (MAFES), USDA-ARS project 58-6066-3-044, USDA-NIFA SCI Project 1029242 and NIFA-USDA Hatch Project 7006130.

**Acknowledgements**

The authors thank Anya Crane (Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick, Frederick, MD, USA) for critically editing the manuscript. This is a publication of the International Committee on Taxonomy of Viruses (ICTV), a non-profit, volunteer committee of the Virology Division of the International Union of Microbiology Societies (IUMS). The ICTV does not represent or endorse the views and actions of governments or the institutions or organisations for which its co-authors work.

**Conflicts of interest**

The authors declare that there are no conflicts of interest.

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