Novel Cucurbita plants
AssigneeSyngenta Participations AG
InventorsJean Louis Nicolet, Kevin Cook, Gabriele Gusmini
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Abstract
The present invention relates to novel Cucurbita plants comprising a new gene conferring resistance to viruses upon said plant, in particular resistance to Cucumber Mosaic Virus (CMV). The new gene is designated as Cmv-2. The present invention also relates to seeds and parts of said plants, for example fruits. The present invention also relates to methods of making and using such plants.
Claims31
A Cucurbita plant comprising a Cmv-2 gene, wherein, when said Cucurbita plant is crossed with a plant of inbred line 90-3588, 100% of F1 plants resulting from said cross are resistant to CMV, and:
- a) 100% of said F1 plants produce 100% of F2 progeny plants resistant to CMV, when said Cucurbita plant is homozygous for a Cmv-2 gene;
- or
- b) 50% of said F1 plants produce 100% of F2 progeny plant resistant to CMV and 50% said F1 plants produce a 3:1 ratio of F2 progeny plants resistant to CMV to F2 progeny plants susceptible to CMV, when said Cucurbita plant is heterozygous for a Cmv-2 gene,
- wherein said plant is not a plant of C. moschata cv. Seminole Pumpkin.
A Cucurbita plant of inbred line 90-3588, representative seed of which been deposited under accession NCIMB 41369.
A method for producing a Cucurbita plant comprising a Cmv-2 gene comprising:
- a) obtaining a plant of C. moschata cv. Seminole Pumpkin;
- b) crossing said plant of C. moschata cv. Seminole Pumpkin plant with a Cucurbita plant lacking a Cmv-2 gene;
- c) rescuing an embryo resulting from the cross of step b);
- d) regenerating a plant from said embryo of step c);
- and
- e) selecting a plant of step d) that is resistant to CMV;
A C. pepo plant highly resistant to CMV, wherein said C. pepo plant comprises a Cmv-2 gene.
Dependencies are inferred from the claim text.