List of non‐EU viruses and viroids infecting potato (Solanum tuberosum) and other tuber‐forming Solanum species

Bragard, Claude; Dehnen‐Schmutz, Katharina; Gonthier, Paolo; Jacques, Marie‐Agnès; Miret, Josep Anton Jaques; Justesen, Annemarie Fejer; MacLeod, Alan; Magnusson, Christer Sven; Milonas, Panagiotis; Navas‐Cortés, Juan A; Parnell, Stephen; Potting, Roel; Reignault, Philippe Lucien; Thulke, Hans‐Hermann; Werf, Wopke Van der; Civera, Antonio Vicent; Yuen, Jonathan; Zappalà, Lucia; Candresse, Thierry; Lacomme, Christophe; Bottex, Bernard; Kałuski, Tomasz; Oplaat, Carla; Roenhorst, Annelien; Schenk, Martijn; Serio, Francesco Di

doi:10.2903/j.efsa.2020.5852

Cited by 3 publications

(3 citation statements)

References 74 publications

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“…However, the associated publication (Steenken and Halaweh, 2011 ) does not mention S. tuberosum among the screened hosts. CaCV is also listed as a virus associated with potato in the EFSA scientific opinion on the list of non‐EU viruses and viroids infecting potato and other tuber‐forming Solanum species (EFSA PLH Panel, 2020 ), based on information retrieved from GenBank database, where three accessions of the CaCV NSs gene from potato are reported. These findings were recorded in 2010 from plants grown in Thailand.…”

Section: Pest Categorisationmentioning

confidence: 99%

Pest categorisation of Capsicum chlorosis virus

Bragard¹,

Baptista²,

Chatzivassiliou³

et al. 2022

EFS2

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The EFSA Panel on Plant Health conducted a pest categorisation of Capsicum chlorosis virus (CaCV) for the EU territory. The identity of CaCV, a member of the genus Orthotospovirus (family Tospoviridae ), is established and reliable detection and identification methods are available. The pathogen is not included in the EU Commission Implementing Regulation 2019/2072. CaCV has been reported in Australia, China, India, Iran, Taiwan, Thailand and USA (Hawaii). In the EU, it has been reported once in Greece (Crete Island). The NPPO of Greece reported that CaCV is no longer present in Greece. CaCV infects plant species in the family Solanaceae (i.e. pepper, tomato) and several species of other families, including ornamentals. It may induce severe symptoms on its hosts, mainly on leaves and fruits, which may become unmarketable. The virus is transmitted in a persistent propagative mode by the thrips Ceratothripoides claratris, Frankliniella schultzei, Microcephalothrips abdominalis and Thrips palmi. C. claratris and T. palmi are EU quarantine pests. M . abdominalis is known to be present in several EU member states and it is not regulated in the EU. Plants for planting, parts of plants, fruits and cut flowers of CaCV hosts, and viruliferous thrips were identified as the most relevant pathways for the entry of CaCV into the EU. Cultivated and wild hosts of CaCV are distributed across the EU. Should the pest enter and establish in the EU territory, impact on the production of cultivated hosts is expected. Phytosanitary measures are available to prevent entry and spread of the virus in the EU. CaCV fulfils the criteria that are within the remit of EFSA to assess for it to be regarded as a potential Union quarantine pest.

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Section: Pest Categorisationmentioning

confidence: 99%

Pest categorisation of Capsicum chlorosis virus

Bragard¹,

Baptista²,

Chatzivassiliou³

et al. 2022

EFS2

Self Cite

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“…(hereafter referred to as potato). The selection of viruses is based on information collected from various literature sources and databases in the opinion listing and grouping potato viruses (EFSA PLH Panel, 2020).…”

Section: Interpretation Of the Terms Of Referencementioning

confidence: 99%

Pest categorisation of non‐EU viruses and viroids of potato

Bragard¹,

Dehnen‐Schmutz²,

Gonthier³

et al. 2020

EFS2

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Following a request from the EU Commission, the Panel on Plant Health has addressed the pest categorisation of those viruses and viroids (hereafter referred to as viruses) of Solanum tuberosum and other tuber-forming Solanum spp. (hereafter referred to as potato) which are considered to be either non-EU or of undetermined standing based on a previous EFSA opinion. These viruses belong to different families and genera and either have an established identity or produce consistent symptoms. Plants for planting is the main pathway for entry for all categorised viruses as they can all be transmitted by vegetative propagation. Several categorised viruses have a relatively wide host range and/or are vector-transmitted, increasing the potential for entry. The information currently available on geographical distribution, biology, epidemiology, impact and potential entry pathways has been evaluated with regard to the criteria to qualify as potential Union quarantine pest or as Union regulated non-quarantine pest (RNQP). Since this opinion addresses specifically the non-EU potato viruses, in general these viruses do not meet the criteria assessed by EFSA to qualify as potential Union regulated non-quarantine pests. The following viruses meet the criteria to qualify as potential Union quarantine pest: APLV, APMMV, APMoV, ChiLCV, CYSDV, PAMV, PBRSV, PVH, PVP, PVT, PYDV, PYMV, PYV, PYVV, RCVMV, SALCV, SB26/29, ToCV, ToLCNDV, ToMHaV, ToMoTV, ToSRV and ToYVSV. With the exception of the criterion regarding the potential for consequences in the EU territory, for which the Panel is unable to conclude because of lack of information, AVB, CPSbV, PaLCrV, PapMV, PVB, PVU, SB41 and TVBMV meet all the other criteria to qualify as potential Union quarantine pest. PotLV and WPMV do not qualify as potential Union quarantine pest, since they are not reported to have any impact. For most of the categorised viruses, the conclusions of the Panel have inherent uncertainties, due to the lack of quantitative data on their impact and/or absence or limited availability of information on the biology, epidemiology and geographical distribution.

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“…Various pathogens, including viruses, drastically decrease potato yield and quality, threatening an important food resource. Over 50 viruses and one viroid have been reported to infect potatoes worldwide [ 2 – 4 ]. However, only a limited number of those viruses are known to cause major global losses.…”

Section: Introductionmentioning

confidence: 99%

Exploring virus presence in field-collected potato leaf samples using RNA sequencing

Elwan,

Rabie,

Aleem

et al. 2023

Journal of Genetic Engineering and Biotechnology

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Background The quick and accurate identification of viruses is essential for plant disease management. Next-generation sequencing (NGS) technology may allow the discovery, detection, and identification of plant pathogens. This study adopted RNA-sequencing (RNA-Seq) technology to explore the viruses in three potato plants (S3, S4, and S6) growing under field conditions. Results Potato-known infecting viruses, such as alfalfa mosaic virus (AMV), potato leafroll virus (PLRV), and potato virus Y (PVY), were identified using bioinformatics programs and validated using RT-PCR. The presence of these potato viruses was also confirmed by visual inspection of host symptoms. In addition, the nearly complete genome of PLRV and the complete or partial genome sequence of multipartite virus segments have been identified. Besides the three major potato viruses that BLASTn analysis revealed were present in our samples, BLASTx analysis revealed some reads are derived from other potato viruses, such as potato virus V (PVV), Andean potato latent virus (APLV), and tomato chlorosis virus (ToCV), which are not frequently reported in potato field screenings in Egypt. Other microbial agents, such as bacteria and fungi, were also identified in the examined sample sequences. Some mycovirus sequences derived from ourmia-like viruses and Alternaria alternata chrysovirus were also identified in sample S4, confirming the complexity of the potato microbiome under field conditions. Conclusion NGS quickly and accurately identifies potato plant viruses under field conditions. Implementing this technology on a larger scale is recommended to explore potato fields and imported plants, where symptoms may be absent, unspecific, or only triggered under certain conditions.

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List of non‐EU viruses and viroids infecting potato (Solanum tuberosum) and other tuber‐forming Solanum species

Cited by 3 publications

References 74 publications

Pest categorisation of Capsicum chlorosis virus

Pest categorisation of Capsicum chlorosis virus

Pest categorisation of non‐EU viruses and viroids of potato

Exploring virus presence in field-collected potato leaf samples using RNA sequencing

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