Lr42 has been used extensively in the CIMMYT international wheat breeding program with resulting cultivars deployed in several countries. The gene has been cloned
Key Information
Crop
Wheat
Disease resistance(s)
Wheat leaf rust
Resistance type
All stage resistance
Source
Aegilops tauschii subsp. strangulata
First reported
Cox, T. S., Raupp, W. J. & Gill, B. S. Leaf rust-resistance genes Lr41, Lr42, and Lr43 transferred from Triticum tauschii to common wheat. Crop Sci. 34, 339–343 (1994)
Chromosomal location
1DS
Genomic Sequence
GenBank accession number: OK430880
Germplasm availability
AGG 26238 WHEA, Triticum aestivum L., KS91WGRC11. AGG 29879 WHEA, Triticum aestivum L., KS91WGRC11
Additional Information
Accessions carrying Lr42 are available from Australian grains genebank
Markers
SNP-KASP
| Marker Type | Marker Name | Allele 1 Primer (resistant) | Allele 2 Primer (susceptible) | Common Primer | Published location |
|---|---|---|---|---|---|
| SNP-KASP | Lr42_pD1 | ACAAGAAAGAGCAGACCA | GCAAGAAAGCGTAGACCC | CCCTTTCTTGGCTTGGTTTAG | Lin, G., Chen, H., Tian, B. et al. Cloning of the broadly effective wheat leaf rust resistance gene Lr42 transferred from Aegilops tauschii. Nat Commun 13, 3044 (2022). https://doi.org/10.1038/s41467-022-30784-9 |
| SNP-KASP | Lr42_pD2 | CTGCGTAAAAATCCAAGCGCT | CTCTGCGTAAAAATTCAATCTCC | CCCTTTCTTGGCTTGGTTTAG | |
| SNP-KASP | pC43 | CCTGGAAACGTACGTATGCAC | CCTGGAAACGTACGTATGCAT | GAAAGGCCTCCAGCTCCAG |
History
m
mago_rohit@hotmail.com
29 October, 2024
- Updated additional information - accessions carrying lr42 are available from australian grains genebank
- Updated genomic sequence - genbank accession number: ok430880