POWDERY MILDEW RESISTANT SUNFLOWER
Helianthus annuus are susceptible to powdery mildew caused by fungi in the order Erysiphales. The present invention relates to novel Helianthus interspecific hybrids containing a genetic resistance to powdery mildew. The present invention also relates to methods for creating novel Helianthus interspecific hybrids containing a genetic resistance to powdery mildew and Helianthus interspecific hybrids produced by the method.
1 . An interspecific Helianthus plant comprising a genetic determinant responsible for resistance to powdery mildew.
2 . The interspecific Helianthus plant of claim 1 , obtainable by crossing a Helianthus plant with another Helianthus plant comprising a genetic determinant responsible for resistance to Powdery mildew, wherein a sample of representative seed of said plant comprising a genetic determinant responsible for resistance to powdery mildew is deposited under ATCC Accession No. PTA-125012.
3 . The interspecific Helianthus plant of claim 1 , wherein said genetic determinant responsible for resistance to powdery mildew can be found in a plant grown from seed deposited under ATCC Accession No. PTA-125012.
4 . The interspecific Helianthus plant of claim 1 wherein said plant is made from H. annuus x H. argophyllus x H. debilis.
5 . Helianthus seed comprising a genetic determinant responsible for resistance to powdery mildew, wherein said seed is obtainable from a plant according to claim 1 .
6 . A Helianthus plant produced by growing the seed of claim 5 .
7 . A method of producing hybrid Helianthus seed according to claim 5 comprising crossing a first parent Helianthus plant with a second parent Helianthus plant and harvesting the resultant hybrid Helianthus seed.
8 . Hybrid seed produced by the method of claim 7 .
9 . A hybrid plant or its parts produced by growing the hybrid seed of claim 8 .
10 . Seed comprising a genetic determinant responsible for resistance to powdery mildew produced from the hybrid plant of claim 9 .