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5 results about "Peronospora effusa" patented technology

Peronospora effusa is an obligate pathogen that causes downy mildew on spinach and is considered the most economically important disease of spinach. The objective of the current research was to assess genetic diversity of known historical races and isolates collected in 2014 from production fields ...

Downy mildew resistance in spinach

PCT designated stageWO2026017734A1Microbiological testing/measurementPlant genotype modificationBiotechnologyPeronospora effusa
The current invention relates to spinach plants comprising a gene or locus which leads to a broad spectrum resistance to Peronospora effusa (Pe). The invention also relates to progeny of said 5 spinach plants, to propagation material of said spinach plants, to a cell of said spinach plants, to seed of said spinach plants, and to harvested leaves of said spinach plants. The invention also relates to use of said spinach plants in breeding to confer resistance against Peronospora effusa. The invention further relates to a method for generating a spinach plant having a broad spectrum resistance to Peronospora effusa.
Owner:KWS VEGETABLES BV

Non r-gene mediated peronospora resistance in spinacia oleracea

The present invention relates to a Spinacia oleracea plant comprising a nucleic acid molecule which when homozygously present provides at least intermediate resistance to Peronospora effusa races Pe: 1, Pe: 2, Pe: 3, Pe: 4, Pe: 5, Pe: 6, Pe: 7, Pe: 8, Pe: 9, Pe: 10, Pe: 11, Pe: 12, Pe: 13, Pe: 14, Pe: 15, Pe: 16, Pe: 17, Pe: 18, Pe: 19 and Pe: 20, wherein said nucleic acid molecule comprises a gene which comprises a coding sequence according to SEQ ID NO: 1 and a gene which comprises a coding sequence according to SEQ ID NO: 2, or a gene which comprises a coding sequence having at least 95.0% sequence identity to SEQ ID NO: 7 and comprises an insertion of sequence motif GAAATA between nucleotides 1235 and 1236 of SEQ ID NO: 7 and a gene which comprises a coding sequence having at least 95.0% sequence identity to SEQ ID NO: 8 and lacks a sequence according to SEQ ID NO: 14, wherein the 95.0% sequence identity is over the part of SEQ ID NO: 8 without the lacking sequence, or genes comprising the corresponding genomic sequences or genes encoding a protein having an amino acid sequence according to SEQ ID NO: 3, and a gene encoding a protein having an amino acid sequence according to SEQ ID NO: 4, or genes encoding proteins showing 95% sequence identity thereto. The invention further relates to a plant carrying the nucleic acid molecule and to methods of selecting, producing and growing such plants.
Owner:RIJK ZWAAN ZAADTEELT & ZAADHANDEL BV

Peronospora resistance in spinacia oleracea

PCT designated stageWO2026131860A1Microbiological testing/measurementPlant genotype modificationPeronosporaPeronospora verbenae
The present invention relates to an allele designated alpha-WOLF 31 which confers resistance to at least one Peronospora effusa race, wherein the protein encoded by said allele is a CC-NBS-LRR protein that comprises in its amino acid sequence: a) the motif "MAEIGYSVC" at its N-terminus; and b) the motif "KWMCLR"; and wherein the protein has an amino acid sequence that in order of increased preference has at least 97% sequence similarity to SEQ ID NO: 11. The allele when present in a spinach plant confers complete resistance to at least Peronospora effusa race Pe:1, Pe:2, Pe:4, Pe:5, Pe:6, Pe:7, Pe:10, Pe:12, Pe:13, Pe:14, Pe:15, Pe:16, Pe:18, Pe:19, and Pe:20.
Owner:RIJK ZWAAN ZAADTEELT & ZAADHANDEL BV

Downy mildew resistance in spinach

The present invention relates to a spinach plant comprising a gene or a locus that results in a broad spectrum of resistance to Peronospora diffusa (Pe). The invention also relates to progeny of said spinach plant, propagation material of said spinach plant, cells of said spinach plant, seeds of said spinach plant and harvested leaves of said spinach plant. The invention also relates to the use of said spinach plant to confer resistance against downy mildew in breeding. The present invention also relates to a method of producing a spinach plant having a broad spectrum resistance against Peronospora dispersa (Pe).
Owner:KWS VEGETABLES BV

Downy mildew resistance in spinach

PendingCN122458843APeronospora effusaSpinacia
The present invention relates to an allele designated beta-WOLF 28 which confers resistance to at least one race of Peronospora farinosa (P. farinosa) Peronospora effusa ​ ) wherein the protein encoded by said allele is a CC-NBS-LRR protein comprising in its amino acid sequence: a) at its N-terminus the motif "MAEIGYSVC"; and b) the motif "HVGCVVDR"; and wherein said protein has an amino acid sequence having in order of increasing preference at least 95.5% sequence similarity with SEQ ID NO: 11. When present in homozygous form in a spinach plant, said allele confers full resistance to at least P. farinosa races Pe:1, Pe:2, Pe:3, Pe:4, Pe:5, Pe:6, Pe:7, Pe:8, Pe:9, Pe:10, Pe:11, Pe:12 and Pe:13 and does not confer resistance to races Pe:14, Pe:15, Pe:16, Pe:17, Pe:18 and Pe:19.
Owner:RIJK ZWAAN ZAADTEELT & ZAADHANDEL BV