Disease resistant onion plants
AssigneeEnza Zaden Beheer B.V.
InventorsMireille Maria Augusta Van Damme, Augustinus Franciscus Johannes Maria Van Den Ackerveken, Mathieu André Pel, Tieme Zeilmaker
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Abstract
The present invention relates to a mutant onion (Allium cepa) plant, which is resistant to a pathogen of viral, bacterial, fungal or oomycete origin. The mutant onion plant has a reduced level, reduced activity or complete absence of AcDMR6 protein as compared to a wild type onion plant.
Claims15
A mutant Allium cepa plant, wherein the plant has a reduced activity or a reduced level of an AcDMR6 polypeptide comprising at least 95% sequence identity to SEQ ID NO:
- 112 as compared to a corresponding wild type Allium cepa plant, wherein the mutant Allium cepa plant has a premature stop codon introduced into an AcDMR6 coding sequence comprising at least 95% sequence identity to SEQ ID NO:
- 113, wherein the mutated AcDMR6 coding sequence comprising the premature stop codon is homozygously present, and wherein the plant exhibits intermediate resistance to Peronospora destructor.
A method for obtaining a mutant Allium cepa plant which exhibits intermediate resistant to Peronospora destructor comprising:
- reducing an activity or a level of an AcDMR6 polypeptide comprising at least 95% sequence identity to SEQ ID NO:
- 112 as compared to a corresponding wild type Allium cepa plant, by introducing a premature stop codon into an AcDMR6 coding sequence comprising at least 95% sequence identity to SEQ ID NO:
- 113.
Dependencies are inferred from the claim text.