The object of the present invention is to provide a spinach line with the novel feature of solid petioles at harvest time. As a result of developing many progeny lines having petioles in which the hollow portion is relatively small over many years, a spinach line having solid petioles at harvest time was constructed.

The invention provides seeds and plants of spinach hybrid SVVC5883 and spinach line SSB-S019-1303F. The invention thus relates to the plants, seeds, plant parts, and tissue cultures of spinach hybrid SVVC5883 and spinach line SSB-S019-1303F and to methods for producing a spinach plant produced by crossing such plants with themselves or with another plant, such as a spinach plant of another genotype. The invention further relates to seeds and plants produced by such crossing. The invention further relates to plants, seeds, plant parts, and tissue cultures of spinach hybrid SVVC5883 and spinach line SSB-S019-1303F comprising introduced beneficial or desirable traits.

The invention provides seeds and plants of spinach hybrid SVVC5883 and spinach line SSB-S019-1303F. The invention thus relates to the plants, seeds, plant parts, and tissue cultures of spinach hybrid SVVC5883 and spinach line SSB-S019-1303F and to methods for producing a spinach plant produced by crossing such plants with themselves or with another plant, such as a spinach plant of another genotype. The invention further relates to seeds and plants produced by such crossing. The invention further relates to plants, seeds, plant parts, and tissue cultures of spinach hybrid SVVC5883 and spinach line SSB-S019-1303F comprising introduced beneficial or desirable traits.

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 said allele is a CC-NB S-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.

A spinacia plant with a low oxalic acid content, in particular a low oxalic acid content that is stable and unaffected by environmental conditions. A method for producing the same, a screening method, and a screening kit. A spinacia plant with a low oxalic acid content having at least one low oxalic acid locus located in a chromosome 4 region; a method for producing the spinacia plant having the low oxalic acid content through cross breeding the spinacia plant having the low oxalic acid content with another spinacia plant. A method for screening spinacia plants with low oxalic acid contents by selecting the spinacia plant having at least one low oxalic acid locus located in the chromosome 4 region. A kit for screening spinacia plants with low oxalic acid contents having a primer or a probe that is specifically bound to the low oxalic acid locus.

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. 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 invention provides seed and plants of spinach hybrid SV4888VA and the parent lines thereof. The invention thus relates to the plants, seeds and tissue cultures of spinach hybrid SV4888VA and the parent lines thereof, and to methods for producing a spinach plant produced by crossing such plants with themselves or with another spinach plant, such as a plant of another genotype. The invention further relates to seeds and plants produced by such crossing. The invention further relates to parts of such plants, including the leaf and gametes of such plants.

The invention provides seeds and plants of spinach line MSA-S017-1271F. The invention thus relates to the plants, seeds, plant parts, and tissue cultures of spinach line MSA-S017-1271F and to methods for producing a spinach plant produced by crossing such plants with themselves or with another plant, such as a spinach plant of another genotype. The invention further relates to seeds and plants produced by such crossing. The invention further relates to plants, seeds, plant parts, and tissue cultures of spinach line MSA-S017-1271F comprising introduced beneficial or desirable traits.

The invention provides seed and plants of spinach hybrid SV6203VB and the parent lines thereof. The invention thus relates to the plants, seeds and tissue cultures of spinach hybrid SV6203VB and the parent lines thereof, and to methods for producing a spinach plant produced by crossing such plants with themselves or with another spinach plant, such as a plant of another genotype. The invention further relates to seeds and plants produced by such crossing. The invention further relates to parts of such plants, including the leaf and gametes of such plants.