Expression of barley yellow dwarf virus and Russian wheat aphid resistance genes in and fertility of spring wheat � triticale hybrids and backcross lines

Euphytica ◽  
1996 ◽  
Vol 90 (3) ◽  
pp. 337-344 ◽  
Author(s):  
K. K. Nkongolo
Keyword(s):  
Spring Wheat ◽  
Resistance Genes ◽  
Barley Yellow Dwarf Virus ◽  
Russian Wheat Aphid ◽  
Aphid Resistance ◽  
Yellow Dwarf ◽  
Dwarf Virus ◽  
Barley Yellow Dwarf ◽  
Yellow Dwarf Virus

scholarly journals Reaction of wheat varieties to infection with barley yellow dwarf virus and prospects for resistance breeding

2009 ◽  
Vol 45 (No. 2) ◽  
pp. 45-56 ◽  
Author(s):  
O. Veškrna ◽  
J. Chrpová ◽  
V. Šíp ◽  
T. Sedláček ◽  
P. Horčička
Keyword(s):  
Winter Wheat ◽  
Spring Wheat ◽  
Barley Yellow Dwarf Virus ◽  
Field Trials ◽  
Yellow Dwarf ◽  
Dwarf Virus ◽  
Wheat Varieties ◽  
Barley Yellow Dwarf ◽  
Virus Content ◽  
Yellow Dwarf Virus

The reaction of winter and spring wheat to infection with barley yellow dwarf virus (BYDV-PAV) was evaluated in three-year small-plot field trials on 71 wheat varieties registered in the Czech Republic and at two locations for two years on 63 selected potential sources of resistance. Disease symptoms (VSS) were visually recorded using a 0&ndash;9 scale and the percent reduction of grain weight per spike (GWS-R) was measured on twenty plants per plot. The evaluation showed that among the registered varieties of winter and spring wheat no variety had a high resistance to BYDV (with VSS lower than 3.5). GWS-R ranged between 24% and 60%. Higher variability in VSS was detected for the registered varieties of spring wheat compared to winter wheat. Among the registered varieties of winter wheat, Saskia, Rialto, Meritto, Rexia, and Svitava, as well as the spring wheat Leguan, received the best long-term evaluations. The highest level of resistance was detected for the PSR 3628 line (a hybrid of wheat and couch-grass), but in connection with a low agronomic value. The WKL91-138 line of spring wheat and some varieties (lines) with the detected moderate level of resistance, in particular, could offer good prospects for use in breeding. The presence of the Bdv2 gene was expressed only in the reduction of virus content on the 11<sup>th</sup> day after inoculation. Nevertheless, genotypes carrying this gene were evaluated in field trials as susceptible or very susceptible to infection with the Czech PAV isolate. Similarly, the presence of the Bdv1 gene detected with the help of WMS130 marker was no assurance of an increased level of resistance to BYDV. Hybridological analyses of crosses with the WKL91-138 line showed a polygenic nature of inheritance. Thus, the marker-assisted selection does not obviously promise success without a focus on detecting a larger number of QTLs.

scholarly journals Identification of New QTL Contributing to Barley Yellow Dwarf Virus-PAV (BYDV-PAV) Resistance in Wheat

Plant Disease ◽  
2019 ◽  
Vol 103 (11) ◽  
pp. 2798-2803 ◽  
Author(s):  
S. Choudhury ◽  
H. Hu ◽  
Y. Fan ◽  
P. Larkin ◽  
M. Hayden ◽  
...  
Keyword(s):  
Resistance Genes ◽  
Barley Yellow Dwarf Virus ◽  
Virus Disease ◽  
Wheat Yield ◽  
Chromosomal Translocation ◽  
Yellow Dwarf ◽  
Dwarf Virus ◽  
Barley Yellow Dwarf ◽  
Yellow Dwarf Virus ◽  
Dh Lines

Barley yellow dwarf (BYD) is a major virus disease which dramatically reduces wheat yield. Introducing BYD resistance genes into commercial varieties has been proven to be effective in reducing damage caused by barley yellow dwarf virus (BYDV). However, only one major resistance gene is readily deployable for breeding; Bdv2 derived from Thinopyrum intermedium is deployed as a chromosomal translocation. In this study, a double haploid (DH) population was developed from a cross between XuBYDV (introduced from China showing very good resistance to BYD) and H-120 (a BYD-sensitive Chinese accession), and was used to identify QTL for BYD resistance. The population was genotyped using an Infinium iSelect bead chip array targeting 90K gene-based SNPs. The disease resistance of DH lines inoculated with BYDV was assessed at the heading stage. The infections were assessed by tissue blot immunoassay (TBIA). Three new QTL were identified on chromosomes 5A, 6A, and 7A for both symptom and TBIA, with all three resistance alleles being inherited from XuBYDV. Some DH lines with the resistance alleles from all three QTL showed high level resistance to BYD. These new QTL will be useful in breeding programs for pyramiding BYD resistance genes.

scholarly journals The Evaluation of Wheat Cultivar Resistance and Yield Loss Thresholds in Response to Barley Yellow Dwarf Virus-PAV Infection

Agriculture ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 20
Author(s):  
Jana Chrpová ◽  
Ondřej Veškrna ◽  
Jana Palicová ◽  
Jiban Kumar Kundu
Keyword(s):  
Spring Wheat ◽  
Barley Yellow Dwarf Virus ◽  
Economic Loss ◽  
Yellow Dwarf ◽  
Dwarf Virus ◽  
Wheat Cultivars ◽  
Resistant Cultivars ◽  
Barley Yellow Dwarf ◽  
Yellow Dwarf Virus ◽  
Moderately Resistant

The PAV strain of barley yellow dwarf virus (BYDV) is one of the causal agents of yellow dwarf disease in cereals. The use of germplasm resistant to BYDV is generally regarded as the most effective means of controlling damage caused by this pathogen. In field trials, response to infection with a barley yellow dwarf virus of selected wheat cultivars registered in the Czech Republic was compared with that of control cultivars. Although a good level of resistance to BYDV-PAV was found in cultivar Athlon and yield loss was low, symptoms were more severe than on the moderately resistant control cultivar Sparta. Several other cultivars, such as Nordika, Julie, and Replik, also had slightly less than a 30% reduction in grain weight per spike, even though symptoms were more severe on Sparta or Athlon. Our results showed that, in the case of approximately 60% of wheat plants with BYDV-PAV symptoms, the yield reductions under optimal agronomic conditions reached approximately 17% for moderately resistant cultivars and 30% for moderately susceptible cultivars. The application of N fertilizer significantly reduced yield losses in BYDV-PAV-infected wheat cultivars, particularly in the moderately resistant cultivars. Even when infected with BYDV-PAV, the yield of moderately resistant cultivars, including those of spring wheat, was still acceptable. However, the re-cultivation costs of spring wheat in replacing damaged winter wheat lead to a total economic loss per hectare that is much greater than that for BYDV-infected wheat cultivars (moderately resistant and/or moderately susceptible ones). Furthermore, the economic loss is much lower when a moderately resistant cultivar is used. Hence, even with a high level of disease symptoms in winter wheat, the re-cultivation of spring wheat is not economically feasible.

Root and Shoot Responses to Bird Cherry‐Oat Aphids and Barley yellow dwarf virus in Spring Wheat

Crop Science ◽  
2003 ◽  
Vol 43 (4) ◽  
pp. 1380-1386 ◽  
Author(s):  
Walter E. Riedell ◽  
Robert W. Kieckhefer ◽  
Marie A. C. Langham ◽  
Louis S. Hesler
Keyword(s):  
Spring Wheat ◽  
Barley Yellow Dwarf Virus ◽  
Yellow Dwarf ◽  
Dwarf Virus ◽  
Barley Yellow Dwarf ◽  
Yellow Dwarf Virus

scholarly journals Recent advances in breeding of cereals for resistance to barley yellow dwarf virus

2008 ◽  
Vol 44 (No. 1) ◽  
pp. 1-10 ◽  
Author(s):  
K. Kosová ◽  
J. Chrpová ◽  
V. Šíp
Keyword(s):  
Resistance Genes ◽  
Barley Yellow Dwarf Virus ◽  
Yellow Dwarf ◽  
Dwarf Virus ◽  
Advantages And Disadvantages ◽  
Recent Success ◽  
Barley Yellow Dwarf ◽  
Breeding Programmes ◽  
Yellow Dwarf Virus ◽  
European Programme

The review focuses on recent progress in the breeding of small grain cereals (barley, wheat, oats) for resistance to the barley yellow dwarf virus (BYDV). First, the symptomatology of barley yellow dwarf (BYD) disease is briefly described and the genome of BYDV, its serotypes and mechanisms of its replication and translation in host plants are characterized. Great attention is paid to the description of resistance genes and sources of BYDV resistance that are currently used in some breeding programmes of barley, wheat and oats. In barley, the introduction of the Ryd2 gene into high-yielding cultivars is still desirable. An example of recent success reached in a European programme aimed at a pyramiding of resistance genes is the registration of the Italian feeding barley cultivar Doria, carrying resistance genes Ryd2, rym4 and Rdg1. The release of this cultivar resulted from the cooperation between EICR, Fiorenzuola d&rsquo;Arda and CRI in Prague-Ruzyně in the field of virus resistance. Finally, some experiments employing transgenic techniques in the construction of resistant plants are mentioned. In conclusion, the advantages and disadvantages of classical breeding methods using crossing and transgenic techniques are compared and newly arising approaches are discussed.

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