Sr39 is effective against all stem rust races in Australia and is also effectve against Ug99 but has not been used in wheat varities
Key Information
Crop
Wheat
Disease resistance(s)
Wheat stem rust
Resistance type
All stage resistance
Source
Aegilops speltoides
First reported
Kerber E.R., Dyck P.L. Transfer to hexaploid wheat of linked genes for adult-plant leaf rust and seedling stem rust resistance from amphiploid of Aegiolops speltoides x Triticum monoccum. Genome. 1990;33:530–537. doi: 10.1139/g90-079
Chromosomal location
2B
Known/other genes in the region
Lr35
Germplasm availability
RL5711
Additional Information
Sr39#22 and BE50075 can be multiplexed to give a co-dominant marker
Markers
PCR
| Marker Type | Marker Name | Forward Primer | Reverse Primer | Annealing temperature (°C) | Size (bp): Resistant allele/Susceptible allele | Published location |
|---|---|---|---|---|---|---|
| PCR | Sr39#22 | AGAGAAGATAAGCAGTAAACATG | TGCTGTCATGAGAGGAACTCTG | 58 | 487bp | https://maswheat.ucdavis.edu/protocols/Sr32 |
| PCR | Sr39#50 | CAATGAGGAGATCAAAACAACC | CTAGCAAGGACCAAGCAATCTTG | 58 | 205bp+167bp/ 167bp | https://maswheat.ucdavis.edu/protocols/Sr39 |
| PCR | BE500705 | ATCTGTGGCAGTGTGCTCCT | TCCTGCAAATGCTTGTCGTT | 56 | 166bp | https://maswheat.ucdavis.edu/protocols/Sr39 |