Genomic analysis of two all stage stripe rust resistance genes in the Vavilov wheat landraces AGG40807WHEA1
Article
| Article Title | Genomic analysis of two all stage stripe rust resistance genes in the Vavilov wheat landraces AGG40807WHEA1 |
|---|---|
| ERA Journal ID | 2411 |
| Article Category | Article |
| Authors | Sharma, Raghvendra, Chen, Chunhong, Zhang, Peng, Bharti, Hemlata, Vikas, Venu Kumaran, Norman, Michael, Dibley, Katherine, Riaz, Adnan, Hewitt, Tim, Hoxha, Sami, Forrest, Kerrie, Lagudah, Evans, Bariana, Harbans, Bansal, Urmil, Hickey, Lee and Periyannan, Sambasivam |
| Editors | Silva, P. |
| Journal Title | Theoretical and Applied Genetics: international journal of plant breeding research |
| Journal Citation | 138 |
| Article Number | 180 |
| Number of Pages | 14 |
| Year | 2025 |
| Publisher | Springer |
| Place of Publication | Germany |
| ISSN | 0040-5752 |
| 1432-2242 | |
| Digital Object Identifier (DOI) | https://doi.org/10.1007/s00122-025-04965-1 |
| Web Address (URL) | https://link.springer.com/article/10.1007/s00122-025-04965-1 |
| Abstract | The ongoing occurrence and spread of wheat stripe rust, caused by the fungal pathogen Puccinia striiformis f. sp. tritici, threatens the global food security. Cultivation of varieties with effective sources of resistance is often followed by the appearance of virulent pathotypes at various times after their introduction. This requires an ongoing search for new sources. Tests of 296 accessions from the Vavilov wheat landrace collection identified numerous lines with broadly effective all-stage stripe rust resistance. Genetic analysis of one of these accessions (Australian Grains Genebank number AGG40807WHEA1) identified two all-stage resistance genes, temporarily named YrV1 and YrV2. The YRV1 and YRV2 loci were mapped to 3.48–3.98 and 730.2–731.2 Mb intervals in the short arm of chromosome 3B and the long arm of chromosome 7B, respectively. A comparative genomic analysis of the YRV1 locus in the Chinese Spring and the 10 + wheat pangenome databases revealed genomic rearrangements and lack of sequences encoding a nucleotide-binding and leucine-rich repeat (NLR) domain protein. Sequences belonging to NLR-like genes were present in the YRV2 region. Kompetitive allele-specific PCR (KASP) markers designed from SNPs IWB71814 and IWB69562, located at 0.4 cM and 0.5 cM distal to YrV1 and YrV2, respectively, were validated for marker-assisted selection using 123 hexaploid and 15 tetraploid wheat and 14 triticale cultivars. YrV1 and YrV2 genes are potentially valuable resources, and use of the closely linked molecular markers will expedite their deployment in breeding. |
| Contains Sensitive Content | Does not contain sensitive content |
| ANZSRC Field of Research 2020 | 300409. Crop and pasture protection (incl. pests, diseases and weeds) |
| Byline Affiliations | Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia |
| University of Queensland | |
| University of Sydney | |
| Indian Council of Agricultural Research, India | |
| Indian Agricultural Research Institute, India | |
| La Trobe University | |
| School of Science, Engineering & Digital Technologies- Ag & Env Sciences | |
| Centre for Crop Health |
https://research.usq.edu.au/item/zyzq3/genomic-analysis-of-two-all-stage-stripe-rust-resistance-genes-in-the-vavilov-wheat-landraces-agg40807whea1
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| Genomic analysis of two all-stage stripe rust resistance genes in the Vavilov wheat landraces AGG40807WHEA1.pdf | ||
| License: CC BY 4.0 | ||
| File access level: Anyone | ||
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