Provides Adult plant pleotropic resistance to wheat stem rust, stripe rust and powdery mildew. Also, provides *All stage resistance to leaf rust
Key Information
Crop
Wheat
Disease resistance(s)
Multi-pathogen resistance
Resistance type
Adult plant resistance
Source
Triticum turgidim ssp. Dicoccon
First reported
Hare and McIntosh, 1979 (http://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=PASCALAGROLINEINRA8050276414)
Linked Phenotypes
Pseudo black chaff, seedling chlorosis
Additivity
Not known
Chromosomal location
3BS
Known/other genes in the region
Also known as Yr30/Lr27/Pm70
Germplasm availability
CS*6/Hope3B
Additional Information
Sr2 is widely used in Australian wheat varieties
New SNP-KASPmarker (Sr2-DupJn) avaialble for Sr2. Marker available under MTA from Rohit Mago (rohit.mago@csiro.au)
Markers
SNP-CAPS
| Marker Type | Marker Name | Forward Primer | Reverse Primer | Annealing temperature (°C) | Restriction enzyme | Size (bp): Resistant allele/Susceptible allele | Published location |
|---|---|---|
| SNP-CAPS | CSSr2 | Mago, R., Brown-Guedira, G., Dreisigacker, S. et al. An accurate DNA marker assay for stem rust resistance gene Sr2 in wheat. Theor Appl Genet 122, 735–744 (2011). https://doi.org/10.1007/s00122-010-1482-7 |
SNP-KASP
| Marker Type | Marker Name | Allele 1 Primer (resistant) | Allele 2 Primer (susceptible) | Common Primer | Published location |
|---|---|---|---|---|---|
| SNP-KASP | wMAS000005 | GTGCGAGACATCCAACACTCAT | GTGCGAGACATCCAACACTCAC | CTCAAATGGTCGAGCACAAGCTCTA | https://maswheat.ucdavis.edu/protocols/Sr2 |
History
RM
Rohit Mago
29 October, 2024
- Updated known/other genes in the region - also known as yr30/lr27/pm70