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AssigneeSeminis Vegetable Seeds, Inc.
InventorsKelli M. Durham, Susana Garcia Andres, Maria Dolores Hernandez, Scott J. Huesgen, Andrea K. Knox, Bram Rozier, Menno Ter Maat, Sjoerd van der Ent, Ruth A. Wagner
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The present disclosure provides cultivated tomato plants exhibiting increased resistance to Mi-1 resistance-breaking root-knot nematodes. Such plants comprise novel recombinant chromosomal segments comprising alleles associated with disease resistance from Solanum pimpinellifolium on chromosome 1 and/or chromosome 6. In certain aspects, compositions and methods for producing, breeding, detecting, and selecting plants or germplasm with an increased disease resistance phenotype are provided.
A cultivated tomato plant comprising a recombinant chromosomal segment on chromosome 6 from Solanum pimpinellifolium on chromosome 6, wherein said recombinant chromosomal segment comprises an allele that confers increased resistance to Mi-1 resistance-breaking root-knot nematode species relative to a plant lacking said recombinant chromosomal segment, and wherein said recombinant chromosomal segment comprises a marker locus selected from the group consisting of marker locus M6 (SEQ ID NO:10), marker locus M7 (SEQ ID NO:11), marker locus M8 (SEQ ID NO:16), marker locus M9 (SEQ ID NO:21), and marker locus M10 (SEQ ID NO:26).
A method for producing a cultivated tomato plant with improved resistance to Mi-1 resistance-breaking root-knot nematode species, comprising introgressing into said plant a Mi-1 resistance-breaking root-knot nematode species resistance allele from chromosome 6 of Solanum pimpinellifolium within a recombinant chromosomal segment flanked in the genome of said plant by marker locus M6 (SEQ ID NO:10) and marker locus M10 (SEQ ID NO:26) on chromosome 6, wherein said introgressed Mi-1 resistance-breaking root-knot nematode species resistance allele confers to said plant resistance to Mi-1 resistance-breaking root-knot nematode species relative to a plant lacking said allele.
Dependencies are inferred from the claim text.