Location: Sugarbeet Research
Project Number: 3060-21000-045-005-S
Project Type: Non-Assistance Cooperative Agreement
Start Date: Jun 1, 2020
End Date: May 31, 2025
Objective:
1. Identify host resistance to Cercospora leaf spot and root maggot in sugarbeet germplasm lines and wild Beta maritima accessions;
2. Determine genomic regions conferring the resistance;
3. Introgression of the resistance to develop new resistance sugarbeet germplasm lines.
Approach:
1. Evaluating 1,000 sugarbeet germplasm lines and 450 Beta maritima accessions in field and/or controlled conditions for their resistance to Cercospora leaf spot and root maggot;
2. Genotyping all those sugarbeet and B. maritima lines through genome sequencing;
3. Conducting genome-wide association analysis to identify genomic regions associated with the resistance;
4. Making genetic mapping and breeding populations by crossing several selected resistant lines with the cultivated sugarbeet lines with high sugar productivity;
5. Developing molecular markers linked to resistant genes;
6. Marker-assisted selection will be conducted to select lines with improved resistance to leaf spot and root maggot as well as maintaining the high sugar productivity.
