Green bean plants with improved disease resistance
AssigneeSeminis Vegetable Seeds, Inc.
InventorsEllen L. Evans, Kenneth Kmiecik, Chad Kramer, Arie Oppelaar
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Abstract
Green bean plants exhibiting resistance to Sclerotinia sclerotiorum are provided, together with methods of producing, identifying, or selecting plants or germplasm with a Sclerotinia sclerotiorum resistance phenotype and lacking an undesirable seed color trait. Such plants include green bean plants comprising introgressed genomic regions conferring disease resistance. Compositions, including novel polymorphic markers for detecting plants comprising introgressed disease resistance alleles, are further provided.
Claims40
A green bean plant comprising a recombinant chromosomal segment on chromosome 2, wherein said recombinant chromosomal segment comprises an allele conferring resistance to Sclerotinia sclerotiorum relative to a plant lacking said recombinant chromosomal segment.
A green bean plant comprising a recombinant chromosomal segment on chromosome 7, wherein said recombinant chromosomal segment comprises an allele conferring resistance to Sclerotinia sclerotiorum relative to a plant lacking said recombinant chromosomal segment.
A recombinant DNA segment comprising a Sclerotinia sclerotiorum resistance allele that confers to a plant increased resistance to Sclerotinia sclerotiorum, wherein the allele lacks a deleterious allele genetically linked thereto that confers to a plant undesirable seed color.
A method of producing a plant of a green bean line exhibiting resistance to Sclerotinia sclerotiorum, comprising introgressing into a plant a Sclerotinia sclerotiorum resistance allele within a recombinant chromosomal segment flanked in the genome of said plant by:
- (a) marker locus M1 (SEQ ID NO:
- 1) and marker locus M2 (SEQ ID NO:
- 7) on chromosome 2;
- (b) marker locus M9 (SEQ ID NO:
- 8) and marker locus M10 (SEQ ID NO:
- 14) on chromosome 7;
- or
- (c) marker locus M11 (SEQ ID NO:
- 20) and marker locus M12 (SEQ ID NO:
- 26) on chromosome 7;
- wherein said introgressed Sclerotinia sclerotiorum resistance allele confers to said plant increased resistance to Sclerotinia sclerotiorum compared to a plant not comprising said allele, and wherein said plant lacks a deleterious allele genetically linked to said Sclerotinia sclerotiorum resistance allele that confers undesirable seed color to said plant when present.
Dependencies are inferred from the claim text.