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Wild relatives of wheat possess many agronomic traits important to wheat improvement. Wheat–alien translocation and deletion lines are important genetic stocks in wheat breeding or physical mapping of important alien genes. However, screening for chromosomal structural changes by conventional cytogenetic analyses is time-consuming work. It is necessary to(More)
The wheat spindle streak mosaic virus (WSSMV) or wheat yellow mosaic virus (WYMV) resistance gene, Wss1, from Haynaldia villosa, was previously mapped to the chromosome arm 4VS by the development of 4V (4D) substitution and T4DL·4VS translocation lines. For better utilization and more accurate mapping of the Wss1, in this research, the CS ph1b mutant was(More)
Wheat-Haynaldia villosa translocations T6V#2S.6AL and T6V#4S.6DL, carriers of Pm21 and PmV, respectively, continue to contribute powdery mildew resistance in wheat varieties in China. Based on colinearity between Brachypodium distachyon and Triticeae species, genomic sequences from gene intervals of B. distachyon physically linked to a homolog of Stpk-V, a(More)
The stripe rust resistance gene, Yr26, is commonly used in wheat production. Identification of Yr26 resistance related genes is important for better understanding of the resistance mechanism. TaRab18, a putative small GTP-binding protein, was screened as a resistance regulated gene as it showed differential expression between the Yr26-containing resistant(More)
Fusarium head blight (FHB), also called wheat scab, is an important disease in warm and humid regions worldwide, which not only reduces crop yield and grain quality, but also is a major safety concern in food and feed production due to mycotoxin contamination. Growing wheat cultivars with FHB resistance is one of the most economical and effective means to(More)
The powdery mildew resistance gene Pm21 was physically and comparatively mapped by newly developed markers. Seven candidate genes were verified to be required for Pm21 -mediated resistance to wheat powdery mildew. Pm21, a gene derived from wheat wild relative Dasypyrum villosum, has been transferred into common wheat and widely utilized in wheat resistance(More)
Haynaldia villosa (L.) Schur (syn. Dasypyrum villosum L. Candargy, 2n = 14, genome VV) is the tertiary gene pool of wheat, and thus a potential resource of genes for wheat improvement. Among other, wheat yellow mosaic (WYM) resistance gene Wss1 and a take-all resistance gene were identified on the short arm of chromosome 4 V (4VS) of H. villosa. We had(More)
Sharp eyespot is a major fungal disease of wheat caused by Rhizoctonia cerealis in cool and humid environments worldwide. In this study, 224 single seed descent derived F13, F14 and F15 recombinant inbred lines (RILs) from the cross between CI12633 (a resistant cultivar) and Yangmai 9 (a susceptible cultivar) were assessed for sharp eyespot resistance(More)
Common wheat (Triticum aestivum L.) is one of the most important cereal crops. Wheat powdery mildew caused by Blumeria graminis f. sp. tritici (Bgt) is a continuing threat to wheat production. The Pm21 gene, originating from Dasypyrum villosum, confers high resistance to all known Bgt races and has been widely applied in wheat breeding in China. In this(More)
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