61 results about "Peronospora farinosa" patented technology

The present invention relates to a Spinacia oleracea seed designated 51-335 RZ, which exhibits late bolting, savoy mature leaves with an ovate shape, and resistance to downy mildew (Peronospora farinosa f.sp. spinaciae) races Pfs1 to Pfs13 and strain UA4410. The present invention also relates to a Spinacia oleracea plant produced by growing the 51-335 RZ seed. The invention further relates to methods for producing the spinach cultivar, represented by spinach variety 51-335 RZ.

The invention relates to plants and plant parts, in particular spinach plants (Spinacia oleracea L.), which are resistant to Peronospora farinosa f. sp. spinaciae. The invention also relates to seeds capable of producing Peronospora farinosa f. sp. spinaciae resistant plants. The invention further relates to methods for obtaining said plants with altered genotypes and seeds thereof, which are resistant to Peronospora farinosa f. sp. spinaciae.

The present invention relates to a method for modifying the resistance profile of a spinach plant to Peronospora farinosa f. sp. spinaciae, comprising introducing a WOLF allele or a resistance-conferring part thereof into the genome of said spinach plant, or modifying an endogenous WOLF allele in the genome of said spinach plant. A WOLF allele encodes a CC-NBS-LRR protein that comprises in its amino acid sequence: the motif “MAEIGYSVC” at its N-terminus, and the motif “KWMCLR” for alpha-type WOLF proteins or “HVGCVVDR” for beta-type WOLF proteins. The invention relates to the WOLF alleles referred to in Table 3. The invention further provides a method for selecting a spinach plant comprising a novel WOLF gene that confers resistance to Peronospora farinosa f. sp. spinaciae in a spinach plant and a method for identifying a WOLF allele that confers resistance to one or more pathogenic races of Peronospora farinosa f. sp. spinaciae in a spinach plant and to primers for use in these methods.

The present invention relates to a spinach plant which may comprise a single dominant gene which confers resistance to Peronospora farinosa f. sp. spinaciae races Pfs1, Pfs2, Pfs3, Pfs4, Pfs5, Pfs6, Pfs9, Pfs11, Pfs12, Pfs13 and UA4410, and to isolate E1314-283, wherein the gene is obtainable by introgression from a plant grown from seeds of which a representative sample was deposited with the NCIMB under NCIMB accession numbers 41857, 41976, 41977, 41978, 41980, 41981, 41984, 42116. The invention further relates to progeny of the plant, to propagation material therefore, such as seed, and to food products which may comprise the spinach leaves.

The present invention relates to a spinach plant which may comprise a single dominant gene which confers resistance to Peronospora farinosa f. sp. spinaciae races Pfs1, Pfs2, Pfs3, Pfs4, Pfs5, Pfs6, Pfs9, Pfs11, Pfs12, Pfs13 and UA4410, wherein the gene is obtainable by introgression from a plant grown from seeds of which a representative sample was deposited with the NCIMB under NCIMB accession number 41857. The invention further relates to progeny of the plant, to propagation material therefore, such as seed, and to food products which may comprise the spinach leaves.

The present invention relates to the field of spinach breeding, in particular to a new dominant resistance gene, designated RPF11, which confers resistance against races 7 to 14 of Peronospora farinosa and to spinach plants comprising said gene.

The present invention relates to a Spinacia oleracea seed designated 51-706 RZ, which exhibits medium bolting, semi-erect plant habit, semi-savoy mature leaves, and resistance to downy mildew (Peronospora farinosa f. sp. spinaciae) races Pfs1 to Pfs13. The present invention also relates to a Spinacia oleracea plant produced by growing the 51-706 RZ seed. The invention further relates to methods for producing the spinach cultivar, represented by spinach variety 51-706 RZ.

The present invention relates to an allele designated alpha-WOLF 25 which confers resistance to at least one Peronospora farinosa f. sp. spinacea race, wherein the protein encoded by the 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 LRR domain of the protein has in order of increased preference at least 95%, 96%, 97%, 98%, 99%, 100% sequence similarity to SEQ ID No:5. The allele, when present in a spinach plant, confers complete resistance to at least Peronospora farinosa f. sp. spinacea race Pfs:8, Pfs15 and Pfs:16, and does not confer resistance to Pfs:3.

The present invention relates to the development of a spinach plant exhibiting a combination of traits which may include resistance against downy mildew (Peronospora farinosa f. sp. Spinaciae) strains Pf1-Pf13, and arrow-shaped prime market stage leaves, methods and compositions relating to plants, progeny, seeds and derivatives thereof and plants, progeny, seeds and derivatives thereof having all the morphological, physiological and / or genetic characteristics thereof.

The present invention relates to the development of a spinach plant that expresses a new resistance pattern against downy mildew (Peronospora farinosa f. sp. spinaciae) strains Pf1-Pf13, methods and compositions relating to plants, progeny, seeds and derivatives thereof and plants, progeny, seeds and derivatives thereof having all the morphological, physiological and / or genetic characteristics thereof.

The present invention relates to the field of spinach breeding, in particular to a new dominant resistance gene, designated RPF11, which confers resistance against races 7 to 14 of Peronospora farinosa and to spinach plants comprising said gene.