An object of the present invention is to provide an F1 hybrid or a portion thereof, and use of the F1 hybrid or a portion thereof. The F1 hybrid of the present invention is an F1 hybrid between Nicotiana umbratica and Nicotiana kawakamii.

The present invention relates to polynucleotides which confer or enhance resistance or tolerance to leaf rust and stripe rust disease onto wheat plants. The present invention further relates to methods of using the resistance-conferring polynucleotides for producing resistant or tolerant wheat plants and to heat plants so produced.

The present invention relates to methods and compositions for identifying, selecting and/or producing a Disease resistant soybean plant or germplasm using markers, genes and chromosomal intervals derived from Glycine clandestina, e.g. PI339656, or a progeny thereof. A soybean plant or germplasm that has been identified, selected and/or produced by any of the methods of the present invention is also provided. Disease resistant soybean seeds, plants and germplasms are also provided.

The present invention relates to methods and compositions for identifying, selecting and/or producing a Disease resistant soybean plant or germplasm using markers, genes and chromosomal intervals derived from Glycine tomentella PI441001, PI441008, PI446958, PI509501, PI583970, PI499939 or PI483224. A soybean plant or germplasm that has been identified, selected and/or produced by any of the methods of the present invention is also provided. Disease resistant soybean seeds, plants and germplasms are also provided.

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 present invention relates to a mutant onion (Allium cepa) plant, which is resistant to a pathogen of viral, bacterial, fungal or oomycete origin. The mutant onion plant has a reduced level, reduced activity or complete absence of AcDMR6 protein as compared to a wild type onion plant.

The present invention relates to cultivated cucumber plants comprising modifications in their genome, whereby the modifications confer reduced susceptibility to internal fruit rot symptoms caused by Didymella bryoniae, and to methods for generating such plants, and their use.

A method for breeding a new germplasm of clubroot-resistant orange-heading Chinese cabbage includes: (1) obtaining F.sub.1 by hybridizing orange-heading Chinese cabbage as a female parent and clubroot-resistant Chinese cabbage as a male parent, obtaining F.sub.2 by selfing F.sub.1 individual plants, planting F.sub.2 populations, and extracting DNA from the individual plants of F.sub.2; (2) observing horticultural traits of F.sub.2, and performing observation and statistics of head color phenotypic traits through cutting head; (3) performing PCR amplification with DNA of F.sub.2 using a dominant orange gene marker Br530 and a clubroot-resistant marker SC2930-T/SC2930Q, and identifying a genotype of the individual plants; (4) performing a comprehensive evaluation according to the results of marker detection and the observation of horticultural traits, selecting double-site homozygous clubroot-resistant orange-heading Chinese cabbage plants, and selfing the individual plants for 2 consecutive generations; and (5) obtaining a new germplasm of clubroot-resistant orange-heading Chinese cabbage after selfing for 3 generations.

The present invention belongs to the field of plant genetic engineering. In particular, the present invention relates to a method for obtaining wheat with increased resistance to powdery mildew, wherein the wheat has comparable or even increased yield comparable to wild type.

The present invention relates to a method for identifying and selecting plants resistant to a fungal disease comprising the steps of; (a) extraction of nucleic acid from a plant; (b) analysis of extracted nucleic acid for the presence of markers associated with increased fungal resistance within a single chromosome interval; and (c) selection of the plants that have these markers.

Furthermore, the invention also relates to a method for introgression into plants of fungal disease resistance alleles comprising the steps of; (a) crossing parents of plants identified by the first embodiment method with other parents that do not have this resistance; (b) select progenies possessing markers associated with increased resistance to fungal disease using the method as defined in the first achievement; and (c) backcross in one or more cycles the selected progenies with the recurrent genitor to develop new progenies.