IP Library › Granted Patent US 12,529,069
Granted Patent B2
US 12,529,069 · App. 18/485,636 · Granted Jan 20, 2026

Resistance to cucumber green mottle mosaic virus in

Inventors: Melissa C. Cantet (Saint Andiol, FR); Belgin Cukadar (Rotterdam, NL); Maarten de Milliano (Bergschenhoek, NL); Antoon Stekelenburg (Houten, NL)
Assignee: Seminis Vegetable Seeds, Inc.
C12N15/8283C07K14/415C12Q1/6895C12Q2600/13
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Quick Facts
Patent No.
US 12,529,069
App. No.
18/485,636
Granted
Jan 20, 2026
Kind
B2
Abstract

Cucumber plants ( Cucumis sativus ) exhibiting increased resistance to Cumber Green Mottle Mosaic Virus (CGMMV) are provided, together with methods of producing, identifying, or selecting plants or germplasm with a CGMMV resistance phenotype. Such plants include cucumber plants comprising recombinant chromosomal segments conferring CGMMV resistance. Compositions, including novel polymorphic markers for detecting plants comprising introgressed virus resistance alleles, are further provided.

Claims (14)

1 . A method for producing an elite Cucumis sativus plant with improved Cucumber Green Mottle Mosaic Virus (CGMMV) resistance comprising introgressing into an elite Cucumis sativus plant:

(a) at least one CGMMV resistance allele within a chromosomal segment flanked in the genome of said plant by marker locus CGMMV_M1 (SEQ ID NO: 1) and marker locus CGMMV_M2 (SEQ ID NO: 6) on chromosome 5; and

(b) at least one CGMMV resistance allele within a chromosomal segment flanked in the genome of said plant by marker locus CGMMVM4 (SEQ ID NO: 16) and marker locus CGMMV_M5 (SEQ ID NO: 21) on chromosome 1,

wherein said introgressing comprises marker-assisted selection and confers to said plant improved CGMMV resistance compared to a Cucumis sativus plant lacking said at least one allele of (a).

2 . The method of claim 1 , wherein said introgressing comprises:

a) crossing a plant comprising said chromosomal segments with itself or with a second Cucumis sativus plant of a different genotype to produce at least a first progeny plant; and

b) selecting a progeny plant comprising said chromosomal segments.

3 . The method of claim 1 , wherein marker-assisted selection comprises:

(a) detecting a marker locus that is genetically linked to said CGMMV resistance allele on chromosome 5 and is selected from the group consisting of: marker locus CGMMV_M1 (SEQ ID NO: 1), marker locus CGMMV_M2 (SEQ ID NO: 6), and marker locus CGMMV_M3 (SEQ ID NO: 11); and

(b) detecting a marker locus that is genetically linked to said CGMMV resistance allele on chromosome 1 and is selected from the group consisting of: marker locus CGMMV_M4 (SEQ ID NO: 16), marker locus CGMMV_M5 (SEQ ID NO: 21), and marker locus CGMMV_M6 (SEQ ID NO: 26).

4 . The method of claim 2 , wherein said progeny plant is an F 2 -F 6 progeny plant.

5 . The method of claim 1 , wherein said introgressing comprises backcrossing or assaying for said CGMMV resistance.

6 . The method of claim 1 , wherein said chromosomal segment on chromosome 1 lacks a deleterious allele genetically linked thereto that confers leaf vein necrosis when present, and wherein the deleterious allele comprises marker locus CGMMV_M7 (SEQ ID NO: 31) or marker locus CGMMV_M8 (SEQ ID NO: 36).

7 . A Cucumis sativus plant obtained by the method of claim 1 .

Continuity (3)
Division 17198226 · Mar 10, 2021
Provisional Application 62989347 · Mar 13, 2020
Related Publication 20240043863A1 · Feb 8, 2024
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