The wheat Sr50 gene reveals rich diversity at a cereal disease resistance locus
Rohit Mago
(1)
,
Peng Zhang
(2)
,
Sonia S. Vautrin
(3)
,
Urmil Bansal
(2)
,
Ming-Cheng Luo
(4)
,
Matthew Rouse
(5)
,
Haydar Karaoglu
(2)
,
Sambasivam Periyannan
(1)
,
James Kolmer
(5)
,
Yue Jin
(5)
,
Michael A. Ayliffe
(1)
,
Harbans Bariana
(2)
,
Robert F. Park
(2)
,
Robert Mcintosh
(2)
,
Jaroslav Dolezel
(6)
,
Helene H. Berges
(3)
,
Wolfgang Spielmeyer
(1)
,
Evans S. Lagudah
(1)
,
Jeff G. Ellis
(1)
,
Peter N. Dodds
(1)
1
CSIRO -
Commonwealth Scientific and Industrial Research Organisation [Australia]
2 Plant Breeding Institute [Kiel]
3 CNRGV - Centre National de Ressources Génomiques Végétales
4 Department of Plant Sciences
5 UMN - University of Minnesota [Twin Cities]
6 IEB / CAS - Institute of Experimental Botany of the Czech Academy of Sciences
2 Plant Breeding Institute [Kiel]
3 CNRGV - Centre National de Ressources Génomiques Végétales
4 Department of Plant Sciences
5 UMN - University of Minnesota [Twin Cities]
6 IEB / CAS - Institute of Experimental Botany of the Czech Academy of Sciences
Rohit Mago
- Fonction : Auteur
- PersonId : 800946
- ORCID : 0000-0001-5286-073X
Peng Zhang
- Fonction : Auteur
- PersonId : 762416
- ORCID : 0000-0002-6129-567X
Sonia S. Vautrin
- Fonction : Auteur
- PersonId : 1206514
- ORCID : 0000-0003-4446-1426
Helene H. Berges
- Fonction : Auteur
- PersonId : 1203296
- ORCID : 0000-0002-5492-1062
Peter N. Dodds
- Fonction : Auteur correspondant
Résumé
We identify the wheat stem rust resistance gene Sr50 (using physical mapping, mutation and complementation) as homologous to barley Mla, encoding a coiled-coil nucleotide-binding leucine-rich repeat (CC-NB-LRR) protein. We show that Sr50 confers a unique resistance specificity different from Sr31 and other genes on rye chromosome 1RS, and is effective against the broadly virulent Ug99 race lineage. Extensive haplotype diversity at the rye Sr50 locus holds promise for mining effective resistance genes.