Host plant resistance in wheat to barley yellow dwarf viruses and their aphid vectors: a review

Aradottir, G. I.; Crespo‐Herrera, Leonardo

doi:10.1016/j.cois.2021.01.002

Cited by 53 publications

(54 citation statements)

References 80 publications

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“…Currently, 11 YDV variants are recognized worldwide [113,114]. However, the only variants found in Australia so far are: BYDV-PAV, BYDV-MAV, CYDV-RPV and maize yellow dwarf virus (MYDV-RMV) [35,[79][80][81]83,86,89,110,115].…”

Section: Yellow Dwarf Virusesmentioning

confidence: 99%

“…Bdv2, Bdv3 and Bdv4 are all from intermediate wheatgrass (Thinopyrum intermedium). They confer partial resistance to BYDV-PAV (Bdv2), full resistance to CYDV-RPV and moderate resistance to BYDV-MAV and BYDV-PAV (Bdv3), or partial resistance to BYDV-PAV (Bdv4) [114,128,133,136]. In Australia, Byd2 has been widely used to breed BYDV-PAV resistant wheat cultivars [144], but resistance genes Bdv1, Bdv3 and Bdv4 are now all being used currently in wheat breeding [137].…”

Section: Below)mentioning

confidence: 99%

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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: Yellow Dwarf Virusesmentioning

confidence: 99%

Section: Below)mentioning

confidence: 99%

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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“…Breeding for BYD resistance can be improved by applying strategies for more effective evaluation and utilization of the identified resistance. To get a better understanding of BYD and its quantitative nature, consistent and high-throughput methods are needed for the identification of resistant wheat lines for large-scale selection in breeding programs (Aradottir and Crespo-Herrera 2021). Effective selection on the quantitative resistance with low heritability can be aided by the high-throughput genotyping, high-throughput phenotyping (HTP), or a combination of both.…”

Section: Introductionmentioning

confidence: 99%

Applied phenomics and genomics for improving barley yellow dwarf resistance in winter wheat

Silva

Evers

Kieffaber

et al. 2022

Preprint

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Barley yellow dwarf (BYD) is one of the major viral diseases of cereals. Phenotyping BYD in wheat is extremely challenging due to similarities to other biotic and abiotic stresses. Breeding for resistance is additionally challenging as the wheat primary germplasm pool lacks genetic resistance, with most of the few resistance genes named to date originating from a wild relative species. The objectives of this study were to, i) evaluate the use of high-throughput phenotyping (HTP) from unmanned aerial systems to improve BYD assessment and selection, ii) identify genomic regions associated with BYD resistance, and iii) evaluate genomic prediction models ability to predict BYD resistance. Up to 107 wheat lines were phenotyped during each of five field seasons under both insecticide treated and untreated plots. Across all seasons, BYD severity was lower with the insecticide treatment and plant height (PTHTM) and grain yield (GY) showed increased values relative to untreated entries. Only 9.2% of the lines were positive for the presence of the translocated segment carrying resistance gene Bdv2 on chromosome 7DL. Despite the low frequency, this region was identified through association mapping. Furthermore, we mapped a potentially novel genomic region for resistance on chromosome 5AS. Given the variable heritability of the trait (0.211 0.806), we obtained relatively good predictive ability for BYD severity ranging between 0.06 0.26. Including Bdv2 on the predictive model had a large effect for predicting BYD but almost no effect for PTHTM and GY. This study was the first attempt to characterize BYD using field-HTP and apply GS to predict the disease severity. These methods have the potential to improve BYD characterization and identifying new sources of resistance will be crucial for delivering BYD resistant germplasm.

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“…In Europe, the most prominent and economically important cereal aphids are the Bird cherry-oat aphid ( Rhopalosiphum padi (L.)), English grain aphid ( Sitobion avenae (F.)) and the Rose grain aphid ( Metopolophium dirhodum (Wlk.)). All three species are known to vector BYDV 7 – 11 and can on their own and in combination with virus transmission cause between 5 and 80% yield loss 7 , 12 , 13 .…”

Section: Introductionmentioning

confidence: 99%

Identifying aphid resistance in the ancestral wheat Triticum monococcum under field conditions

Simon

Caulfield

Hammond‐Kosack

et al. 2021

Sci Rep

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Wheat is an economically, socially, and nutritionally important crop, however, aphid infestation can often reduce wheat yield through feeding and virus transmission. Through field phenotyping, we investigated aphid resistance in ancestral wheat Triticum monococcum (L.). Aphid (Rhopalosiphum padi (L.), Sitobion avenae (F.) and Metopolophium dirhodum (Wlk.)) populations and natural enemy presence (parasitised mummified aphids, ladybird adults and larvae and lacewing eggs and larvae) on two naturally susceptible wheat varieties, Triticum aestivum (L.) var. Solstice and T. monococcum MDR037, and three potentially resistant genotypes T. monococcum MDR657, MDR045 and MDR049 were monitored across three years of field trials. Triticum monococcum MDR045 and MDR049 had smaller aphid populations, whereas MDR657 showed no resistance. Overall, natural enemy presence was positively correlated with aphid populations; however, MDR049 had similar natural enemy presence to MDR037 which is susceptible to aphid infestation. It is hypothesised that alongside reducing aphid population growth, MDR049 also confers indirect resistance by attracting natural enemies. The observed resistance to aphids in MDR045 and MDR049 has strong potential for introgression into commercial wheat varieties, which could have an important role in Integrated Pest Management strategies to reduce aphid populations and virus transmission.

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Host plant resistance in wheat to barley yellow dwarf viruses and their aphid vectors: a review

Cited by 53 publications

References 80 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

Applied phenomics and genomics for improving barley yellow dwarf resistance in winter wheat

Identifying aphid resistance in the ancestral wheat Triticum monococcum under field conditions

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