Temperature Sensitivity and Efficacy of Wheat Streak Mosaic Virus Resistance Derived from<i>Agropyron intermedium</i>

Seifers, D. L.; Martin, Taylor; Harvey, T. L.; Gills, B. S.

doi:10.1094/pd-79-1104

Cited by 64 publications

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“…Experiments were conducted in a growth chamber at a constant temperature of 27°C and a 12-h photoperiod. Certain A. intermedium-wheat translocation lines appear resistant to WSM below 25°C, but not at higher temperatures (9,41). The higher temperature was used in this study to avoid selection of temperature sensitive resistance that might be less valuable in the field.…”

Section: Methodsmentioning

confidence: 99%

Reactions of Perennial Grain Accessions to Four Major Cereal Pathogens of the Great Plains

et al. 2005

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Methods of disease management used in annual grain crops, especially cultural practices designed to disrupt the disease cycle of a particular pathogen, will not necessarily be applicable to perennial grain crops. Resistance to multiple pathogens, therefore, will clearly be important in disease management. The objective of this research was to evaluate disease resistance in 10 perennial grain accessions (one to two accessions of each: perennial wheat (Thinopyrum sp. × Triticum aestivum), intermediate wheatgrass (Thinopyrum intermedium), perennial rye (Secale montanum), hexaploid triticale (Triticum turgidum × S. montanum), octoploid triticale (Triticum aestivum × S. montanum), tetraploid perennial rye (Secale cereale × S. montanum), and tall wheat-grass (Thinopyrum ponticum)) to tan spot (caused by Pyrenophora tritici-repentis), take-all (caused by Gaeumannomyces graminis var. tritici), wheat streak mosaic, and barley yellow dwarf, four important diseases of the Great Plains. Several of the grasses were resistant to tan spot, barley yellow dwarf, and wheat streak mosaic. Indeed, the wild grasses and perennial donors T. intermedium (including BFPMC1), T. ponticum, and S. montanum, in addition to Permontra, a tetraploid perennial rye, were highly resistant to all three diseases. Additionally, the remaining grasses tested were also more resistant to tan spot than the susceptible wheat control. However, none of the 10 grass accessions appeared highly resistant to take-all, and substantial losses in biomass were observed, although such effects may be moderated under field conditions due to the potential for take-all decline in perennial plantings.

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Section: Methodsmentioning

confidence: 99%

Reactions of Perennial Grain Accessions to Four Major Cereal Pathogens of the Great Plains

et al. 2005

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“…Antiserum against HPV was prepared and used as previously described (13). Antiserum to Wheat streak mosaic virus (WSMV) was prepared using previously described procedures (15).…”

Section: Methodsmentioning

confidence: 99%

Seed Transmission of the High Plains virus in Sweet Corn

et al. 2001

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The High Plains virus (HPV), which infects corn and other cereals, was first found in 1993 in the United States. Research was initiated in 1995 to investigate the potential for seed transmission of HPV. Sweet corn seeds of various cultivars harvested in 1994 to 1996 from 13 fields and research plots in southwestern Idaho, Colorado, and Nebraska were seeded in potting mix in the greenhouse. Leaf samples collected at the three- to six-leaf stage from both symptomatic and asymptomatic plants were tested by enzyme-linked immunosorbent assay (ELISA). Of the 46,600 seeds planted, 38,473 seedlings emerged, and three tested positive by ELISA, exhibited mosaic symptoms, and had the presence of HPV confirmed by an additional test. One of the positive plants was used for successful acquisition and transmission of HPV by the wheat curl mite to Westford barley. The other two plants were used to successfully transfer HPV to other corn plants by vascular puncture inoculation of seed. These results indicate that HPV can be seed transmitted at a very low frequency in sweet corn.

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“…Subsequent breeding led to the development of wheat lines with Wsm1 and the potential to prevent major economic losses. However, many derived lines suffered from poor bread-making quality or agronomic properties (Seifers et al, 1995), perhaps due to negative epistatic effects of Wsm1 or closely linked genes.…”

Section: Introductionmentioning

confidence: 99%

Agronomic and quality effects in winter wheat of a gene conditioning resistance to wheat streak mosaic virus

Divis¹,

Graybosch²,

Peterson

et al. 2006

Euphytica

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Wheat streak mosaic virus (WSMV) is one of the most important diseases limiting winter wheat (Triticum aestivum L.) production in the western Great Plains of North America. There is no known effective WSMV resistance within the primary gene pool of wheat. However, a resistance gene (Wsm1) has been transferred to wheat from a perennial relative, intermediate wheat-grass [Thinopyrum intermedium (Host) . Nebraska-adapted winter wheat lines carrying Wsm1 were used to characterize the effects of this alien introgression on agronomic and quality traits. Sister-lines from six breeding populations were evaluated under virus-free conditions, and under a naturally occurring viral infection. In uninfected locations, no significant difference for grain yield was detected between resistant (R) and susceptible (S) lines, when averaged over populations, but resistant lines had significantly higher test weights. Within populations, significantly higher grain yield was observed only in population 1, while significantly higher test weights occurred in populations 1, 2, 5 and 6. At the infected location, resistant lines were significantly higher in yield in five of six populations. In two of six populations, susceptible lines were significantly higher in bread loaf volume and bake mix time, while in the remaining populations, no significant quality differences were observed. As the Wsm1 gene provided yield advantages under viral infection, and there was no yield detriment in the absence of the virus, its deployment in hard winter wheat cultivars merits consideration.

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Temperature Sensitivity and Efficacy of Wheat Streak Mosaic Virus Resistance Derived fromAgropyron intermedium

Cited by 64 publications

References 0 publications

Reactions of Perennial Grain Accessions to Four Major Cereal Pathogens of the Great Plains

Reactions of Perennial Grain Accessions to Four Major Cereal Pathogens of the Great Plains

Seed Transmission of the High Plains virus in Sweet Corn

Agronomic and quality effects in winter wheat of a gene conditioning resistance to wheat streak mosaic virus

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