Location: Vegetable Crops Research
Project Number: 5090-21000-069-55-R
Project Type: Reimbursable Cooperative Agreement
Start Date: Sep 1, 2020
End Date: Aug 31, 2024
1. Develop and characterize cucumber core population (390 lines) 2. Molecular mapping of downy mildew (DM) resistances in cucumber 3. Marker-assisted pyramiding of DM resistance QTL and evaluation of enhanced germplasm with multiple disease resistances.
Objective 1: 1) Re-sequence 284 cucumber lines. 2) Phenotype for target traits in this collection for downy mildew resistance. 3) Conduct association analysis. Objective 2: 1) Fine mapping of major-effect QTLs. 2) QTL mapping of DM resistance in PT108 from exotic source. 3) Marker-assisted QTL pyramiding into elite pickling cucumber background