The disclosure relates to methods and compositions for identifying and selecting maize plants with enhanced resistance to northern leaf blight. Maize plants generated by the methods described herein are also a feature.

The present invention relates to a Lactuca sativa seed designated 41-194 RZ. The present invention also relates to a Lactuca sativa plant produced by growing the 41-194 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 41-194 RZ.

A new and distinct variety of M. x piperita, ‘Columbia’ is characterized by its unique oil chemistry and sweet complex flavor profile. The new varietal offers a M. x piperita variety that has strong resistance to diseases such as Verticillium Wilt and Mint Rust.

A new and distinct variety of Mentha canadensis, ‘Umpqua’ is characterized by its unique oil flavor profile providing for a distinct long-lasting mouth cooling sensation. The new varietal offers an oil with a very clean, fresh mouthfeel and intense nasal properties with strong cooling characteristic sensations that increase as it is experienced. ‘Umpqua’ also has strong disease resistance and can grow in areas typically infected by mint diseases.

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.

The present invention relates to white rust resistant plants of the genus Chrysanthemum and to seeds, plant parts, plant cells and progeny thereof. The present invention further relates to means, and particularly molecular markers for identifying white rust resistant plants of the genus Chrysanthemum. Specifically, the present invention relates to plants belonging to the genus Chrysanthemum, the plants are resistant to white rust and the plants comprise in their genome at least one genomic region, or gene or allele, providing white rust resistance, the at least one genomic region, or gene or allele, providing white rust resistance is genetically linked to a nucleic acid sequence comprised in at least one copy in the genome of the resistant plants and is represented by SEQ ID No. 3.

The present invention relates to an allele designated alpha-WOLF 24 which confers resistance to at least one Peronospora farinosa f. sp. spinacea 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” SEQ ID NO: 1 at its N-terminus; and b) the motif “KWMCLR” SEQ ID NO: 2; and wherein the LRR domain of the protein has in order of increased preference at least 95%, 96%, 97%, 98%, 98.2%, 98.5%, 98.8%, 99%, 100% sequence similarity to SEQ ID NO: 10. The allele when present in a spinach plant confers complete resistance to at least Peronospora farinosa f. sp. spinacea race Pfs:1, Pfs:2, Pfs:5, Pfs:6, Pfs:7, Pfs:9, Pfs:11, Pfs:13, Pfs:15 and Pfs:17, and does not confer resistance to downy mildew race Pfs:16.

Up until now, all varieties of Impatiens walleriana are susceptible to impatiens downy mildew cause by the water mold, Plasmopara obducens. The present invention relates to novel Impatiens walleriana seed containing a genetic resistance to Plasmopara obducens. The present invention also relates to methods for creating novel Impatiens walleriana seed containing a genetic resistance to Plasmopara obducens and Impatiens walleriana seed produced by the method.

Plants having reduced susceptibility to Phytophthora from modifying or knocking out a native PP2A subunit A.

Cucumber plants exhibiting resistance to Fusarium oxysporum f.sp. radicis cucumerinum (FORC) are provided, together with methods of producing, identifying, or selecting plants or germplasm with a FORC resistance phenotype. Such plants include cucumber plants comprising introgressed genomic regions conferring disease resistance. Compositions, including novel polymorphic markers for detecting plants comprising introgressed disease resistance alleles, are further provided.