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.

Corn plants exhibiting broad-spectrum resistance to Exserohilum turcicum are provided, together with methods of producing, identifying, or selecting plants or germplasm with a Exserohilum turcicum resistance phenotype. Such plants include sweet corn plants as well as agronomically elite dent corn plants comprising introgressed genomic regions conferring disease resistance. Compositions, including novel polymorphic markers and methods for producing, breeding, identifying, and selecting plants or germplasm with a disease resistance phenotype are further provided.

A new Helianthus plant named SUR67-1 particularly distinguished by the medium to large size yellow decorative inflorescences, vigorous size plant, round mound plant habit, with a natural flowering response of early May until late September.

The present invention relates to new transporter polypeptides, and genes encoding therefor, which can be used to confer upon a plant resistance to one or more biotrophic fungal pathogens.

The current invention concerns a Lactuca sativa plant resistant to Bremia lactucae, characterized in that the Bremia resistance locus is linked to a genetic determinant and obtainable from the genome of a wild Lactuca plant, preferably from the genome of Lactuca serriola. The current invention also relates to seed and other plant material obtainable from this plant as well as to a method for obtaining said plant.

The invention relates to a lettuce plant (Lactuca sativa L.) which may comprise a resistance allele which confers a broad spectrum resistance to Bremia lactucae, wherein the resistance allele is located on linkage group 9, and which resistance allele is as found in the genome of plants grown from seeds of which a representative sample was deposited under accession number NCIMB 42141. The invention further provides seeds, progeny, propagation material and food products from the plant.

The present disclosure provides maize plants exhibiting broad spectrum resistance to Northern Leaf Blight (NLB). Maize plants with multiple NLB resistance loci located in cis linkage on chromosome 8 are provided. Compositions, including novel polymorphic markers and methods for producing, breeding, identifying, and selecting plants or germplasm with a disease resistance phenotype are further provided.

The present invention relates to a Solanum lycopersicum seed designated 72-CK0620 RZ. The present invention also relates to a Solanum lycopersicum plant produced by growing the 72-CK0620 RZ seed. The invention further relates to methods for producing the tomato cultivar, represented by tomato variety 72-CK0620 RZ.

Provided herein are Brassica oleracea plants being resistant to the plant pathogen Albugo candida and wherein the resistance is encoded by one genomic region on chromosome. Also provided herein are methods for identifying the present Albugo candida resistance and to molecular markers for use in the present methods.

A method for producing a sugarcane line having improved smut resistance, the method including: a step of breeding parent plants to obtain a progeny plant, wherein at least one of said parent plants is a sugarcane plant; a step of extracting a genomic DNA of the progeny plant; a step of determining the presence or absence of a marker associated with sugarcane smut resistance in the obtained genomic DNA; a step of selecting a progeny plant having the marker associated with sugarcane smut resistance, and a step of breeding only the selected progeny plant; wherein the marker associated with sugarcane smut resistance contains any nucleotide sequence selected from the group consisting of the nucleotide sequences of SEQ ID NOs: 144 to 151, or at least 15 consecutive nucleotides of SEQ ID NOs: 144 to 151.