Angular leaf spot (Pseudomonas) resistance in cucumber
AssigneeRijk Zwaan Zaadteelt En Zaadhandel B.V.
InventorCornelis Van Der Maas
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Abstract
The present invention relates to a cucumber plant (Cucumis sativus L.) that is resistant to Pseudomonas syringae pv. lachrymans, a pathogen that causes angular leaf spot disease in cucumber. The invention further relates to markers linked to the resistance and the use of markers to identify resistant plants. The invention also relates to seed and progeny of such plants and to propagation material derived from such plants and for obtaining such plants. Furthermore, the invention relates to methods for producing, identifying and selecting Pseudomonas resistant cucumber plants, and for producing hybrid plant seed. The invention further relates to the use of a gene and/or QTLs and sequences thereof to identify/select Pseudomonas resistant cucumber plants.
Claims18
A cucumber plant that comprises a mutant allele of the Gibberellin-20-oxidase gene, that confers resistance to Pseudomonas syringae pv. lachrymans to the plant, wherein the mutant allele of the Gibberellin-20-oxidase gene comprises a SNP on position 860 that leads to a change in the wild type amino acid sequence of the Gibberellin-20-oxidase protein.
A mutant allele of the Gibberellin-20-oxidase gene, comprising a SNP on position 860 of the wild type nucleotide sequence of SEQ ID NO:1.
A mutant Gibberellin-20-oxidase protein, comprising a substitution on position 287 of the wild type amino acid sequence of SEQ ID NO:3.
A cell of a Pseudomonas syringae pv. lachrymans resistant cucumber plant, which cell comprises a mutant allele of the Gibberellin-20-oxidase gene, comprising a SNP on position 860 of the wild type nucleotide sequence of SEQ ID NO:1.
A tissue culture of a cucumber plant having resistance to Pseudomonas syringae pv. lachrymans, which tissue culture comprises a mutant allele of the Gibberellin-20-oxidase gene, comprising a SNP on position 860 of the wild type nucleotide sequence of SEQ ID NO:1.
Dependencies are inferred from the claim text.