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AssigneeRijk Zwaan Zaadteelt En Zaadhandel B.V.
InventorsJacobus Petrus Cornelis De Wit, Cornelis Maria Petrus Van Dun, Johannes Wilhelmus Schut, Petrus Lambertus J. Egelmeers, Robert Helene Ghislain Dirks
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The present invention relates to a for obtaining a plant showing a reduced susceptibility towards infection with a pathogen, in particular an oomycete, comprising treating MO seeds of a plant species to be modified with a mutagenic agent to obtain M1 seeds and growing plants therefrom the thus obtained M1 seeds to obtain M1 plants, inoculation of the thus obtained M1+n plants with the pathogen and selecting plants that show a reduction or absence of sporulation of the pathogen as plants having a reduced susceptibility phenotype. The invention further relates to plants, seeds, pollen, cells and tissues that have the reduced susceptibility towards oomycetes.
A lettuce plant showing a reduced susceptibility towards infection with an oomycete, wherein the plant has genetic information in its genome which is responsible for the reduced susceptibility for oomycetes as in a lettuce plant, representative seed of which was deposited under NCIMB accession number 41294, 41295, 41296, 41297, 41298, 41299, 41300, 41301, 41302, 41303, 41304, 41305, 41306, 41307, 41308, 41309, 41310, 41311, 41312, 41313, 41314, 41315, 41316, 41317, 41318, 41319, 41320, 41321, 41322 or 41323.
A seed of a lettuce plant of showing a reducedsusceptibility towards infection with an oomycete, a representative sample of which seed was deposited under NCIMB accession number 41294, 41295, 41296, 41297, 41298, 41299, 41300, 41301, 41302, 41303, 41304, 41305, 41306, 41307, 41308, 41309, 41310, 41311, 41312, 41313, 41314, 41315, 41316, 41317, 41318, 41319, 41320, 41321, 41322 or 41323.
A method of producing a lettuce plant, or part thereof, having reduced susceptibility towards infection with an oomycete, comprising producing progeny from a plant, or part thereof, having reduced susceptibility towards infection with the oomycete, representative seed of which having been deposited under NCIMB accession number 41294, 41295, 41296, 41297, 41298, 41299, 41300, 41301, 41302, 41303, 41304, 41305, 41306, 41307, 41308, 41309, 41310, 41311, 41312, 41313, 41314, 41315, 41316, 41317, 41318, 41319, 41320, 41321, 41322 or 41323.
A lettuce plant having all characteristics of a lettuce plant grown from seed deposited under NCIMB accession number 41294, 41295, 41296, 41297, 41298, 41299, 41300, 41301, 41302, 41303, 41304, 41305, 41306, 41307, 41308, 41309, 41310, 41311, 41323. 41312, 41313, 41314, 41315, 41316, 41317, 41318, 41319, 41320, 41321, 41322 or 41323.
Dependencies are inferred from the claim text.