scholarly journals Temperature-Sensitive Wheat streak mosaic virus Resistance Identified in KS03HW12 Wheat

Plant Disease ◽  
2007 ◽  
Vol 91 (8) ◽  
pp. 1029-1033 ◽  
Author(s):  
D. L. Seifers ◽  
T. J. Martin ◽  
T. L. Harvey ◽  
S. Haber
Keyword(s):  
Mosaic Virus ◽  
Field Tests ◽  
Wheat Breeding ◽  
Wheat Streak Mosaic Virus ◽  
Temperature Sensitive ◽  
Geographic Origins ◽  
Different Temperatures ◽  
Parental Lines ◽  
The Stability ◽  
Wheat Lines

Wheat streak mosaic virus (WSMV) infection reduces seed yield and quality in wheat. These losses can be alleviated significantly by exploiting genetic host plant resistance. A new source of temperature-sensitive resistance to WSMV, KS03HW12, and its parental lines (KS97HW29/ KS97HW131//KS96HW100-5) were evaluated in both greenhouse and field conditions. Parental wheat lines were exposed to WSMV pressure under different temperatures in growth chambers to determine the stability of the resistance, and 2 years of field yield trials were conducted to confirm effectiveness. To determine the effectiveness of its resistance against a spectrum of isolates, KS03HW12 was tested against six different WSMV isolates of different geographic origins. Among the three pedigree parents, only one, KS97HW29, was resistant. The parental lines of KS97HW29 are not available for testing; therefore, the presumed origin of the resistance could not be further confirmed. None of the six tested WSMV isolates systemically infected KS03HW12 at 18°C. Yield of KS03HW12 in field tests was not different from healthy controls. Thus, the elite winter wheat KS03HW12 appears to be a stable and effective source of temperature-sensitive resistance to WSMV and should be useful for wheat breeding programs.

scholarly journals Temperature Sensitivity and Efficacy of Wheat streak mosaic virus Resistance Derived from CO960293 Wheat

Plant Disease ◽  
2006 ◽  
Vol 90 (5) ◽  
pp. 623-628 ◽  
Author(s):  
D. L. Seifers ◽  
T. J. Martin ◽  
T. L. Harvey ◽  
S. Haber ◽  
S. D. Haley
Keyword(s):  
Mosaic Virus ◽  
Field Trials ◽  
Wheat Streak Mosaic Virus ◽  
Temperature Sensitive ◽  
Wheat Line ◽  
Different Temperatures ◽  
Wsmv Resistance ◽  
The Stability ◽  
Wheat Lines ◽  
Yield Trials

Wheat yields often are limited by infection by Wheat streak mosaic virus (WSMV). Host plant resistance to WSMV can reduce losses. This study was conducted to characterize a new source of temperature-sensitive resistance found in CO960293 wheat. The source of the temperature-sensitive resistance in CO960293 is unknown. Parental and other wheat lines were tested for WSMV resistance using 51 WSMV isolates under different temperatures to determine the stability of the resistance, and yield trials were conducted in the field for 3 years. All parental wheat lines became infected by WSMV at all temperatures and were infective in back assay to ‘Tomahawk’ wheat. No WSMV isolate defeated the resistance of CO960293 at 18°C. Yield of CO960293 in field trials was reduced in only 1 of 3 years. Our data demonstrate that this wheat line can be a valuable source of resistance to WSMV in wheat programs, particularly in areas where temperatures are cool following planting in the fall.

scholarly journals Temperature-Sensitive Resistance to Wheat streak mosaic virus in CO960333 and KS06HW79 Wheat

Plant Disease ◽  
2013 ◽  
Vol 97 (7) ◽  
pp. 983-987 ◽  
Author(s):  
D. L. Seifers ◽  
T. J. Martin ◽  
S. Haber
Keyword(s):  
Mosaic Virus ◽  
Dna Marker ◽  
Field Trials ◽  
Wheat Breeding ◽  
Wheat Streak Mosaic Virus ◽  
Temperature Sensitive ◽  
Yield Losses ◽  
Breeding Programs ◽  
Sequence Characterized Amplified Region ◽  
Temperature Regimes

Temperature-sensitive resistance (TSR) that can protect against losses to Wheat streak mosaic virus (WSMV) has been described in elite wheat germplasm. A TSR identified in the advanced breeding line CO960333 and its derivative KS06HW79 was examined in growth-chamber tests conducted under constant temperature regimes of 18, 21, and 24°C against an array of WSMV isolates. At 18°C, all tested isolates systemically infected the pedigree parents, while the progeny line CO960333 remained free of symptoms; at 24°C, all lines were susceptible. At the intermediate temperature of 21°C, the TSR of KS06HW79 was effective in contrast to the TSRs of KS03HW12 and ‘RonL’. In field trials conducted in 2011 and 2012, the TSR expressed in KS06HW79 conferred complete protection against yield losses from inoculation with the Sidney 81 isolate of WSMV, while the TSR of RonL conferred similar protection in 2012 but allowed small losses in 2011. The resistance expressed by KS06HW79 is likely not due to the Wsm1 gene because it did not contain the tightly linked J15 sequence-characterized amplified region (SCAR) DNA marker. These findings suggest that KS06HW79 could be an additional TSR source of value to wheat-breeding programs seeking to control losses from WSMV.

scholarly journals New Sources of Temperature-Sensitive Resistance to Wheat streak mosaic virus in Wheat

Plant Disease ◽  
2013 ◽  
Vol 97 (8) ◽  
pp. 1051-1056 ◽  
Author(s):  
Dallas L. Seifers ◽  
Steve Haber ◽  
T. J. Martin ◽  
Guorong Zhang
Keyword(s):  
Mosaic Virus ◽  
Relative Effectiveness ◽  
Wheat Streak Mosaic Virus ◽  
Temperature Sensitive ◽  
Yield Losses ◽  
Sources Of Resistance ◽  
Small Grains ◽  
Virus Isolates ◽  
Better Than

Expressing temperature-sensitive resistance (TSR) protects wheat against yield losses from infection with Wheat streak mosaic virus (WSMV). In examining how 2,429 wheat accessions from the National Small Grains Collection responded to inoculation with the Sid81 isolate of WSMV, 20 candidate TSR sources were discovered. To differentiate their relative effectiveness, accession responses over 21 days to inoculation with GH95, Sid81, and PV57 virus isolates in regimes of 18 and 20°C were observed. At 18°C, all 20 candidate TSR sources were uniformly or nearly uniformly asymptomatic 21 days after inoculation with the PV57 isolate, resistance indistinguishable from resistant checks KS96HW10-3 and RonL. By contrast, the Sid81 isolate induced symptoms in low but significant proportions of plants of two candidates, and the GH95 isolate in high proportions for four candidates and low but significant proportions for two others. In the more stringent 20°C regime, the uniform or near-uniform induction of symptoms in response to inoculation with GH95 failed to differentiate among the 20 candidate TSR sources and two resistant checks, while PV57 and Sid81 identified several candidates that performed similarly to KS96HW10-3 and significantly better than RonL. By identifying new sources of resistance, this study contributes to the control of WSMV.

Resistance to Wheat streak mosaic virus and Triticum mosaic virus in wheat lines carrying Wsm1 and Wsm3

2016 ◽  
Vol 147 (3) ◽  
pp. 709-712 ◽  
Author(s):  
Tadele T. Kumssa ◽  
Donglan Zhao ◽  
Guihua Bai ◽  
Guorong Zhang
Keyword(s):  
Mosaic Virus ◽  
Wheat Streak Mosaic Virus ◽  
Wheat Lines

scholarly journals Resistance to Wheat streak mosaic virus identified in synthetic wheat lines

Euphytica ◽  
2014 ◽  
Vol 198 (2) ◽  
pp. 223-229 ◽  
Author(s):  
Jessica L. Shoup Rupp ◽  
Zachary G. Simon ◽  
Beth Gillett-Walker ◽  
John P. Fellers
Keyword(s):  
Mosaic Virus ◽  
Wheat Streak Mosaic Virus ◽  
Synthetic Wheat ◽  
Wheat Lines

Molecular cytogenetic discrimination and reaction to wheat streak mosaic virus and the wheat curl mite in Zhong series of wheat – Thinopyrum intermedium partial amphiploids

Genome ◽  
2003 ◽  
Vol 46 (1) ◽  
pp. 135-145 ◽  
Author(s):  
Qin Chen ◽  
R L Conner ◽  
H J Li ◽  
S C Sun ◽  
F Ahmad ◽  
...  
Keyword(s):  
Mosaic Virus ◽  
Barley Yellow Dwarf Virus ◽  
Wheat Breeding ◽  
Wheat Streak Mosaic Virus ◽  
The Other ◽  
Thinopyrum Intermedium ◽  
Wheat Curl Mite ◽  
Partial Amphiploid ◽  
Yellow Dwarf Virus ◽  
Partial Amphiploids

Thinopyrum intermedium (2n = 6x = 42, JJJsJsSS) is potentially a useful source of resistance to wheat streak mosaic virus (WSMV) and its vector, the wheat curl mite (WCM). Five partial amphiploids, namely Zhong 1, Zhong 2, Zhong 3, Zhong 4, and Zhong 5, derived from Triticum aestivum × Thinopyrum intermedium crosses produced in China, were screened for WSMV and WCM resistance. Zhong 1 and Zhong 2 had high levels of resistance to WSMV and WCM. The other three partial amphiploids, Zhong 3, 4, and 5, were resistant to WSMV, but were susceptible to WCM. Genomic in situ hybridization (GISH) using a genomic DNA probe from Pseudoroegneria strigosa (SS, 2n = 14) demonstrated that two partial amphiploids, Zhong 1 and Zhong 2, have almost the identical 10 Th. intermedium chromosomes, including four Js, four J, and two S genome chromosomes. Both of them carry two pairs of J and a pair of Js genome chromosomes and two different translocations that were not observed in the other three Zhong lines. The partial amphiploids Zhong 3, 4, and 5 have another type of basic genomic composition, which is similar to a reconstituted alien genome consisting of four S and four Js genome chromosomes of Th. intermedium (Zhong 5 has two Js chromosomes plus two Js–W translocations) with six translocated chromosomes between S and Js or J genomes. All three lines carry a specific S–S–Js translocated chromosome, which might confer resistance to barley yellow dwarf virus (BYDV-PAV). The present study identified a specific Js2 chromosome present in all five of the Zhong lines, confirming that a Js chromosome carries WSMV resistance. Resistance to WCM may be linked with J or Js chromosomes. The discovery of high levels of resistance to both WSMV and WCM in Zhong 1 and Zhong 2 offers a useful source of resistance to both the virus and its vector for wheat breeding programs.Key words: GISH, genomic composition, J, Js and S genomes, Thinopyrum intermedium, partial amphiploid, WSMV, WCM resistance.

scholarly journals Winter Wheat Cultivars with Temperature-Sensitive Resistance to Wheat streak mosaic virus Do Not Recover from Early-Season Infections

Plant Disease ◽  
2014 ◽  
Vol 98 (4) ◽  
pp. 525-531 ◽  
Author(s):  
Jacob A. Price ◽  
Angela R. Simmons ◽  
Arash Rashed ◽  
Fekede Workneh ◽  
Charles M. Rush
Keyword(s):  
Winter Wheat ◽  
Mosaic Virus ◽  
Great Plains ◽  
Quantitative Resistance ◽  
Genetic Resistance ◽  
Virus Titer ◽  
Wheat Streak Mosaic Virus ◽  
Temperature Sensitive ◽  
Infection Period ◽  
Wheat Curl Mite

Wheat streak mosaic virus (WSMV), Triticum mosaic virus, and Wheat mosaic virus, all vectored by the wheat curl mite Aceria tosichella Keifer, frequently cause devastating losses to winter wheat production throughout the central and western Great Plains. Resistant ‘Mace’ and ‘RonL are commercially available and contain the wsm1 and wsm2 genes, respectively, for resistance to WSMV. However, the resistance in these cultivars is temperature sensitive, ineffective above 27°C, and does not protect against the other common wheat viruses. The majority of winter wheat in the Southern Great Plains is planted in early fall as a dual-purpose crop for both grazing and grain production. Early planting exposes wheat plants to warmer temperatures above the threshold for effective resistance. Studies were conducted to determine whether the resistance found in these cultivars would give infected plants the ability to recover as temperatures cooled to a range conducive to effective genetic resistance. RonL, Mace, ‘TAM 111’, ‘TAM 112’, and ‘Karl 92’ wheat were infested with WSMV viruliferous mites at temperatures above the resistance threshold. After the initial 4-week infection period, plants were subjected to progressively cooler temperatures during the winter months, well below the resistance threshold. Throughout the study, plant samples were taken to quantify virus titer and mite populations. Resistant RonL and Mace, which became severely infected during the initial infection period, were not able to recover even when temperatures dropped below the resistance threshold. However, TAM 112 showed resistance to WSMV but, more importantly, it also showed resistance to the wheat curl mite, because the mite population in this cultivar was significantly lower than on all other cultivars. The results of this study are significant in that they represent the first evidence of quantitative resistance to both WSMV and the wheat curl mite in a single wheat cultivar. Resistance to the wheat curl mite has potential to reduce losses to all mite-vectored virus diseases of wheat and not just WSMV.

scholarly journals Wheat streak mosaic virus in Australia: Relationship to Isolates from the Pacific Northwest of the USA and Its Dispersion Via Seed Transmission

Plant Disease ◽  
2007 ◽  
Vol 91 (2) ◽  
pp. 164-170 ◽  
Author(s):  
Geoffrey I. Dwyer ◽  
Mark J. Gibbs ◽  
Adrian J. Gibbs ◽  
Roger A. C. Jones
Keyword(s):  
Mosaic Virus ◽  
Pacific Northwest ◽  
The United States ◽  
Wheat Breeding ◽  
Wheat Streak Mosaic Virus ◽  
The Other ◽  
Wheat Seed ◽  
The Pacific ◽  
Australian Continent ◽  
Post Entry

Wheat streak mosaic virus (WSMV) was found for the first time in Australia in 2002. It subsequently was found widely dispersed around the continent and was shown to be seedborne in wheat. The coat protein (CP) gene sequences of nine WSMV isolates from eastern and southwestern Australia are reported, one obtained directly from infected wheat seed, three from seedlings grown from infected wheat seed, and five from infected wheat plant samples. These sequences were compared with those of 66 WSMV CP sequences, including eight previously sequenced Australian isolates. All 17 Australian sequences formed a closely knit monophyletic cluster as part of the D1 subclade of WSMV previously only reported from the Pacific Northwest of the United States. The close phylogenetic relationships of these sequences indicate that the Australian outbreak arose from a single incursion, the source of which appears to be the Pacific Northwest. Three Australian CP sequences were identical, one from the location of the post-entry quarantine facility at Tamworth, New South Wales, and two from seed that had originally been propagated at that facility. These three sequences were closest to the Pacific Northwest sequences and differed from them by as little as eight nucleotides (0.76%). The sequence of a third seedborne isolate originally from the same source differed from the other two seedborne isolates by two nucleotides, indicating that the immigrant WSMV population may have been variable. The other Australian sequences differed from the three identical ones by only one to four nucleotides. The phylogenetic pattern and small number of nucleotide differences between individual isolates from different geographic locations fit the scenario that the virus was introduced once in seed of wheat breeding material, multiplied where it was introduced, and then was dispersed over long distances around the Australian continent along standard distribution routes for wheat breeding lines, germ plasm, and crop seed. These conclusions provide a cautionary tale indicating the importance of effective monitoring of imported plant materials for exotic virus diseases during post-entry quarantine.

scholarly journals Temperature-Sensitive Reaction of Winter Wheat Cultivar AGSECO 7853 to Stagonospora nodorum

Plant Disease ◽  
2003 ◽  
Vol 87 (9) ◽  
pp. 1125-1128 ◽  
Author(s):  
Yong-Ki Kim ◽  
William W. Bockus
Keyword(s):  
Winter Wheat ◽  
Wheat Cultivar ◽  
Stagonospora Nodorum ◽  
Temperature Sensitive ◽  
Winter Wheat Cultivar ◽  
Medium Temperature ◽  
Temperature Regimes ◽  
Different Temperatures ◽  
Winter Wheat Cultivars ◽  
Wheat Lines

Stagonospora blotch is an important foliar and head disease of wheat (Triticum aestivum) in many regions of the world. To determine the reaction of winter wheat cultivars to Stagonospora blotch at different temperatures, seedlings of the hard winter wheat cvs. Newton, AGSECO 7853, and Heyne were inoculated with three isolates of Stagonospora nodorum and exposed to three temperature regimes (high, 29 and 21°C [day and night]; medium, 25 and 17°C; and low, 18 and 10°C). Heyne was resistant at all temperatures in all three experiments. The reaction of AGSECO 7853, when averaged over all isolates, was intermediate between Heyne and Newton at high temperature, as susceptible as Newton at medium temperature, but more susceptible than Newton at low temperature. Therefore, the reaction of AGSECO 7853 relative to Newton was temperature sensitive. This finding is important in the evaluation of wheat lines for resistance to Stagonospora blotch because the relative ranking of one cultivar may differ from another depending upon the temperature.

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