High Plains wheat mosaic virus: An enigmatic disease of wheat and corn causing the High Plains disease

Satyanarayana, T.; Hein, Gary L.

doi:10.1111/mpp.13113

Cited by 20 publications

(41 citation statements)

References 70 publications

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“…Australian HPWMoV isolates had nucleotide sequence identities very similar to those of a Nebraska (USA) isolate [184]. Seed-transmission of HPWMoV at low levels is reported in sweet corn [185,186], so may also occur in wheat which would explain it occurrence in wheat parts of Australia where maize and sweet corn are absent. Three strains of SCMV, which is non-persistently aphid-transmitted, are present in tropical and subtropical Australia: SCMV-SG, SCMV-Q and SCMV-SC.…”

Section: Other Cereal Virusesmentioning

confidence: 84%

Virus Diseases of Cereal and Oilseed Crops in Australia: Current Position and Future Challenges

Jones

Sharman

Trębicki

et al. 2021

Viruses

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This review summarizes research on virus diseases of cereals and oilseeds in Australia since the 1950s. All viruses known to infect the diverse range of cereal and oilseed crops grown in the continent’s temperate, Mediterranean, subtropical and tropical cropping regions are included. Viruses that occur commonly and have potential to cause the greatest seed yield and quality losses are described in detail, focusing on their biology, epidemiology and management. These are: barley yellow dwarf virus, cereal yellow dwarf virus and wheat streak mosaic virus in wheat, barley, oats, triticale and rye; Johnsongrass mosaic virus in sorghum, maize, sweet corn and pearl millet; turnip yellows virus and turnip mosaic virus in canola and Indian mustard; tobacco streak virus in sunflower; and cotton bunchy top virus in cotton. The currently less important viruses covered number nine infecting nine cereal crops and 14 infecting eight oilseed crops (none recorded for rice or linseed). Brief background information on the scope of the Australian cereal and oilseed industries, virus epidemiology and management and yield loss quantification is provided. Major future threats to managing virus diseases effectively include damaging viruses and virus vector species spreading from elsewhere, the increasing spectrum of insecticide resistance in insect and mite vectors, resistance-breaking virus strains, changes in epidemiology, virus and vectors impacts arising from climate instability and extreme weather events, and insufficient industry awareness of virus diseases. The pressing need for more resources to focus on addressing these threats is emphasized and recommendations over future research priorities provided.

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Section: Other Cereal Virusesmentioning

confidence: 84%

Virus Diseases of Cereal and Oilseed Crops in Australia: Current Position and Future Challenges

Jones

Sharman

Trębicki

et al. 2021

Viruses

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“…RNA 5 and RNA 6, of 1,715 and 1,752 nt, encode for P5 (478 aa, 56 kDA) and P6 (492 aa, 58 kDA), respectively, with unknown functions, which are slightly conserved among emaraviruses. RNA 7 (1,434 nt) and RNA 8 (1,339 nt) code for P7 (305 aa, 36 kDA) and P8 (176 aa, 21 kDA), respectively (Tatineni and Hein, 2021 ). P7 and P8 may function as silencing suppressors (Gupta et al, 2018 ).…”

Section: Pest Categorisationmentioning

confidence: 99%

“…The genomic RNAs of HPWMoV were completely sequenced and the sequences are publicly available in the GenBank database (Tatineni et al, 2014 ). RNAs 6–8 are typical of HPWMoV and do not show any sequence homology with other viruses in the GenBank (Tatineni and Hein, 2021 ). The first and last 14 nt at the 5’ and 3’ ends are conserved among all the eight HPWMoV RNA segments and are reverse complementary to each other, thus contributing to the formation of panhandle‐like structures, which are often found among negative‐stranded RNA virus (Tatineni and Hein, 2021 ).…”

Section: Pest Categorisationmentioning

confidence: 99%

“…Typical symptoms caused by single infections of these viruses are difficult to distinguish from each other and co‐infected plants may show exacerbated symptoms (Burrows et al, 2009 ). HPWMoV, TriMV and WSMV form a complex of viruses transmitted by the same mite vector ( Aceria tosichella ) and cause one of the most important diseases of wheat in the USA (Tatineni and Hein, 2021 ).…”

Section: Pest Categorisationmentioning

confidence: 99%

“…Transmission of HPWMoV to several hosts in the family Poaceae by the wheat curl mite Aceria tosichella Keifer has been documented (Seifers et al, 1997 ). As for other mite‐transmitted viruses, the transmission mode of HPWMoV by A. tosichella is not known (Tatineni and Hein, 2021 ). A high level of genetic diversity in wheat curl mite has been reported, with at least 29 different lineages identified (Seifers et al, 2002 ; Carew et al, 2009 ; Skoracka et al, 2012 ; Skoracka et al, 2013 ; Szydlo et al, 2015 ; Skoracka et al, 2018 , Khalaf et al, 2020 ).…”

Section: Pest Categorisationmentioning

confidence: 99%

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Pest categorisation of High Plains wheat mosaic virus

Bragard¹,

Baptista²,

Chatzivassiliou³

et al. 2022

EFS2

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The EFSA Panel on Plant Health conducted a pest categorisation of High Plains wheat mosaic virus (HPWMoV) for the EU territory. The identity of HPWMoV, a member of the genus Emaravirus (family Fimoviridae ), is well established and reliable identification methods are available. The pathogen is not included in the EU Commission Implementing Regulation 2019/2072. HPWMoV has been reported from Argentina, Australia, Canada, Ukraine and USA, and it is not known to be present in the EU. HPWMoV infects plant species of the family Poaceae (i.e. wheat, maize and several other cultivated or wild Poaceae species). It is the causal agent of High Plains disease of wheat and maize, inducing symptoms ranging from mild to severe mosaic, chlorosis and necrosis in wheat, and chlorotic streaks in maize plants. The virus is transmitted by the wheat curl mite Aceria tosichella, which is present in the EU. HPWMoV transmission via seeds was reported to occur in sweet corn. Sweet corn seeds for sowing were identified as the most relevant pathway for entry of HPWMoV into the EU. Seeds from other hosts and viruliferous wheat curl mites were identified as entry pathways associated with uncertainties. Machinery not appropriately cleaned may move infected seeds and/or parts of cereals infested by viruliferous mites. Cultivated and wild hosts of HPWMoV are distributed across the EU. Would the pest enter and establish in the EU territory, economic impact on the production of cultivated hosts is expected. Phytosanitary measures are available to prevent entry and spread of the virus in the EU. HPWMoV 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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Agronomic and quality impact of a shortened translocation for wheat streak mosaic virus resistance

et al. 2023

Self Cite

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Wheat streak mosaic virus (WSMV) is a mite‐vectored virus with substantial economic impact on wheat production. One of the effective sources of resistance to WSMV, Wsm1, is carried on a translocation from Thinopyrum intermedium. The original whole arm form of this translocation (T4DL·4JsS) was highly effective against WSMV but carried a substantial yield penalty in the absence of the virus. Shorter recombinants of the Th. intermedium translocation are now available. This study characterized the agronomic performance of near‐isogenic sib‐pair families in 10 yield trials using one of these shortened T4DL·4DS‐4JsS translocations, named “rec213,” in the absence of visible disease. This translocation had no effect on heading date, was associated with a modest reduction (≤ 4.8 cm) in plant height, and the translocation had a favorable effect (≤ 12.6%) on grain yield in those environments where highly significant genotype effects were detected. The translocation did not affect protein concentration or lactic acid‐sodium dodecyl sulfate solvent retention capacity, a measure of gluten quality. However, families with the translocation had slightly (≤ 5%) lower protein quality scores than paired families without the translocation. We do not expect this modest difference in quality to be a barrier to utilization of the rec213 translocation for Wsm1, but we encourage breeders to work within high‐quality genetic backgrounds when using the rec213 translocation and to monitor the quality of breeding selections. Improved codominant PCR‐based marker assays were developed to facilitate the use of the rec213 Wsm1 trait in breeding programs.

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High Plains wheat mosaic virus: An enigmatic disease of wheat and corn causing the High Plains disease

Abstract: This is an open access article under the terms of the Creat ive Commo ns Attri bution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 20 publications

References 70 publications

Virus Diseases of Cereal and Oilseed Crops in Australia: Current Position and Future Challenges

Virus Diseases of Cereal and Oilseed Crops in Australia: Current Position and Future Challenges

Pest categorisation of High Plains wheat mosaic virus

Agronomic and quality impact of a shortened translocation for wheat streak mosaic virus resistance

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