The present invention relates to a cucumber plant of the species Cucumis sativus carrying a genetic determinant that leads to a darker green stem in the seedling stage that is predictive of a darker green color of the fruits as compared to an isogenic cucumber plant not carrying the said genetic determinant, which genetic determinant is as comprised in a cucumber plant representative seed of which was deposited with the NCIMB under deposit number NCIMB 41859. The genetic determinant is suitably introgressed into the cucumber plant from a cucumber plant of which representative seed has been deposited with the NCIMB under deposit number NCIMB 41859.

The present invention relates to a parthenocarpic cucumber fruit (Cucumis sativus L.) having a small seed cavity. A parthenocarpic cucumber fruit (Cucumis sativus L.) having a small seed cavity has a lower total moisture content. Two QTLs have been identified that either alone or in combination lead to the phenotype of having a small seed cavity. The invention further relates to a cucumber plant comprising one of the QTLs or a combination of both QTLs, which cucumber plant is capable of producing parthenocarpic fruits that have a small seed cavity. The invention also relates to markers for identifying the QTLs.

Reducing or eliminating activity of certain leucine-rich repeat, receptor-like kinases (LRR-RLK) polypeptides in a plant results in an increase in immune response in the plant, thereby conferring increased disease resistance in the plant. The genes that encode the polypeptides are in the same phylogenetic clade, and are termed Broad-Range Resistance (BRR) genes. The related LRR-RLK receptors are called Broad-Range Resistance (BRR) receptors.

The present invention relates to a Cucumis sativus seed designated 19-720 RZ. The present invention also relates to a Cucumis sativus plant produced by growing the 19-720 RZ seed. The invention further relates to methods for producing the cucumber cultivar, represented by cucumber variety 19-720 RZ.

The disclosure provides a new and distinct hybrid variety of cucumber, NUN 51024 CUP as well as seeds and plants and fruits thereof.

The present invention relates to cultivated cucumber plants comprising a yield QTL on chromosome 2 and/or a yield QTL on chromosome 6 of their genome, and to methods for generating such plants, and their use.

The present invention relates to a Cucumis sativus seed designated 12-114 RZ. The present invention also relates to a Cucumis sativus plant produced by growing the 12-114 RZ seed. The invention further relates to methods for producing the gherkin cultivar, represented by gherkin variety 12-114 RZ.

The present invention relates to a marker for identifying a cucumber plant showing a compact growth phenotype, characterized by a shorter internode length and/or a smaller leaf area. The marker comprises a mutation in the Cullin1 gene, thereby providing cucumber plants with a shorter internode length and/or a smaller leaf area when compared to cucumber plants without the mutation in the Cullin1 gene. A plant that shows the resulting compact growth phenotype is in particular suitable for high-wire cultivation. Furthermore, the invention also relates to the use of a modified cucumber Cullin1 gene or a part thereof for identifying a cucumber plant showing a shorter internode length and/or a smaller leaf area.

The present invention relates to a Cucumis sativus plant which may comprise a QTL, a copy number variant region, at least two copies of an ERF gene, or a mutation leading to increased expression of an ERF gene, which leads to Pythium resistance. The invention further relates to propagation material suitable for producing such Cucumis sativus plant. The invention also relates to a method for producing such Cucumis sativus plant and to methods for identification and selection of such a plant. In addition, the invention relates to a marker for identification of the QTL or copy number variant region, or for identification of the presence of at least two copies of an ERF gene resulting in Pythium resistance in Cucumis sativus, and to use of said marker. The invention also relates to seed which may comprise the QTL, copy number variant region, at least two copies of an ERF gene, or a mutation leading to increased expression of an ERF gene, which leads to Pythium resistance in the plant grown from such seed.

The present invention discloses a breeding method and application of a new downy mildew-resistant interspecific hybrid Cucumis sativus variety. The breeding method comprises the following steps: performing hybridization to obtain F1 with the high-generation inbred line CCMC of Changchun dense thorn Cucumis sativus as a female parent and a Cucumis sativus-Cucumis hystrix introgression line material IL52 as a male parent, selfing the hybrid F1 to obtain F2, and continuously constructing an F6 recombinant inbred line by the single seed transfer method; and by identifying of phenotypes of the recombinant inbred line populations during the natural inoculation of downy mildew at the adult plant stage in the field for 4 years, recombinant individuals with high resistance and good fruit marketability will be screened; and utilizing backcrossing and molecular marker-assisted selection to obtain the individuals as the new downy mildew-resistant interspecific hybrid Cucumis sativus variety in which the genotype in the dm5.2 region coincides with the banding pattern of IL52 and the other chromosome regions are the banding pattern of Changchun dense thorn Cucumis sativus. The new variety has a high downy mildew-resistant trait, high yield and excellent fruit quality.