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6 results about "Wheat leaf rust" patented technology
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Wheat leaf rust is a fungal disease that affects wheat, barley and rye stems, leaves and grains. In temperate zones it is destructive on winter wheat because the pathogen overwinters. Infections can lead up to 20% yield loss, which is exacerbated by dying leaves, which fertilize the fungus. The pathogen is Puccinia rust fungus. Puccinia triticina causes "black rust", P. recondita causes "brown rust", and P. striiformis causes "yellow rust". It is the most prevalent of all the wheat rust diseases, occurring in most wheat growing regions. It causes serious epidemics in North America, Mexico and South America and is a devastating seasonal disease in India. All three types of Puccinia are heteroecious requiring two distinct and distantly related hosts (alternate hosts). Rust and the similar smut are members of the class Pucciniomycetes but rust is not normally a black powdery mass.
A wheat leaf rust resistance linkage SNP site, a dCAPS molecular marker, a primer, a kit and an application thereof
The application discloses a wheat leaf rust resistance linkage SNP site, a dCAPS molecular marker, a primer, a kit and application, and belongs to the technical field of wheat disease resistance breeding and molecular biology. The application provides a wheat leaf rust resistance linkage SNP site, wherein the SNP site is located at the 134261400th base on the 4D chromosome of a Chinese spring reference sequence with the version number of IWGSC_v1.1, and the polymorphism site is T / G. With the aid of 277 wheat materials introduced from Turkey with genotype data, and in combination with the Chinese spring reference sequence, a dCAPS molecular marker of the SNP site linked to the wheat adult stage leaf rust resistance genetic locus is developed, different wheat can be accurately and rapidly detected, early molecular assisted selection of the adult stage leaf rust resistance germplasm material is realized, and the efficiency of wheat disease resistance breeding is improved.
Owner:HEBEI AGRICULTURAL UNIV.
Wheat avrlr15 gene and primer set and kit for detecting and / or identifying wheat leaf rust pathogenicity
The present application relates to the application of wheat AvrLr15 gene, primer set and kit in detecting and / or identifying the virulence of wheat leaf rust fungus, and belongs to the technical field of pathogenic microorganism detection.The present application provides the application of wheat AvrLr15 gene in detecting and / or identifying the virulence of wheat leaf rust fungus, wherein the CDS region nucleotide sequence of the AvrLr15 gene is shown as SEQ ID NO.1.The primer set of the present application can directly detect and / or identify the virulence of wheat leaf rust fungus to the wheat leaf rust resistant material TcLr15, and has good specificity, reliability and stability, and can be used as a primer set of specific molecular marker for detecting and / or identifying the virulence of wheat leaf rust fungus to TcLr15.
Owner:HEBEI AGRICULTURAL UNIV.
Wheat leaf rust resistance protein and encoding gene and use thereof
A wheat leaf rust resistance protein, its encoding gene, and the use thereof are provided. The wheat leaf rust resistance protein includes any of the following (a)-(c): (a) a protein, which consists of the amino acid sequence represented by SEQ ID NO: 3; or (b) a protein, which has an amino acid sequence obtained after the amino acid sequence of the protein (a) undergoes substitution and / or deletion and / or addition of one or more amino acids and which has anti-wheat-leaf-rust activity; or (c) a protein, which has 80% or more identity with the amino acid sequence defined in any of (a) and (b) and which has the same function.
Owner:PEKING UNIV INST OF ADVANCED AGRI SCI +1
Application of wheat disease resistance factor TaPKS26 in leaf rust prevention
The present application belongs to the technical field of agricultural bioengineering, and relates to application of a wheat disease resistance factor TaPKS26 in leaf rust prevention and treatment. The CDS sequence of the coding gene of the wheat disease resistance factor TaPKS26 is shown as SEQ ID NO:1, and the present application adopts an agrobacterium-mediated method to obtain a transgenic wheat strain overexpressing the gene TaPKS26. After being infected with the physiological race THT and PHT of leaf rust, the transgenic wheat strain overexpressing the gene TaPKS26 is compared with Fielder wheat, and the results show that the resistance of the transgenic wheat strain to wheat leaf rust is enhanced, and the expression amount of a disease resistance related marker gene is up-regulated, indicating that the wheat disease resistance factor TaPKS26 plays a positive regulation role in the defense response of wheat against leaf rust. The present application provides a new gene resource and technical idea for breeding of a leaf rust disease resistance variety.
Owner:NORTHWEST A & F UNIV
A molecular marker for detecting wheat leaf rust resistance gene LrN4B or LrN3B and application thereof
ActiveCN116790789BMicrobiological testing/measurementDNA/RNA fragmentationBiotechnologyChromosome regions
This invention relates to the field of genetic engineering technology, and more particularly to a molecular marker for detecting wheat leaf rust resistance genes LrN4B or LrN3B and its application. The molecular marker LrN4B-1 is located in the 578-585Mb region of chromosome 4BL, with a polymorphism of C / G. The molecular marker LrN3B-1 is located in the 4-8Mb region of chromosome 3BS, with a polymorphism of T / C. This invention obtains molecular markers linked to wheat leaf rust resistance genes LrN4B and LrN3B through the construction of genetic linkage maps and the screening and localization of molecular markers. These two molecular markers can be used to distinguish the LrN4B+LrN3B disease-resistant genotype, screen for wheat lines containing these two disease-resistant genes, accelerate the process of wheat disease-resistant breeding, and are of great significance in the field of breeding leaf rust-resistant wheat.
Owner:CHINA AGRI UNIV
Application of 2-methylglutaric acid in inhibition of wheat leaf rust and prevention and treatment of wheat leaf rust
PendingCN121926195AHas direct antibacterial activityReduce the level of diseaseBiocideFungicidesBiotechnologySporeling
The invention belongs to the technical field of plant disease prevention and treatment, and particularly relates to application of 2-methylglutaric acid in inhibition of wheat leaf rust and prevention and treatment of wheat leaf rust. The 2-methylglutaric acid has an obvious inhibition effect on wheat leaf rust, the attack level of the leaf rust can be reduced after the 2-methylglutaric acid is sprayed on wheat, and meanwhile, the invention provides application of the regulation and control method in prevention and control of wheat diseases. According to the invention, the internal mechanism of wheat leaf rust resistance reaction is deeply explored based on qualitative and quantitative analysis of metabolites by comprehensively analyzing the change of metabolites when wheat is infected by leaf rust. In the process, it is found that the metabolite 2-methylglutaric acid has an obvious inhibition effect on the germination process of puccinia tritici spores and can be used as a novel compound for preventing and treating the puccinia tritici.
Owner:HEBEI AGRICULTURAL UNIV.