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Soy in Bavaria: Efficient use of natural diversity in marker-assisted breeding of climate-adapted soy varieties for domestic cultivation (Soja Kühle&Protein)
Project
Project code: E/20/02
Contract period: 01.03.2021
- 30.06.2023
Budget: 126,721 Euro
Purpose of research: Applied research
Keywords: soybean, breeding, chilling, cold, protein, plant genetic ressources, climate change
Plant genetic resources (PGRs) in gene banks have enormous potential for improving breeding-relevant traits. Its integration into modern soybean breeding is to be advanced in a marker-based and characteristic/trait-oriented manner and the environmental balance of Bavarian agriculture is to be sustainably improved. Soybean breeding is currently based on a genetically extremely narrow pool of varieties, the expansion of which can be achieved by crossing PGRs with positive properties, considering possible yield losses. At the LfL, PGRs with promising properties in terms of breeding-relevant traits were identified and corresponding molecular DNA markers were developed that can be used in breeding programs. In the project, the traits protein content and chilling tolerance are particularly addressed. Protein levels of 43-45% are desirable and occur naturally in selected PGRs. In addition, PGRs with good chilling tolerance in the seedling stage could be identified at the LfL under controlled conditions. In the project, the PGRs with a high protein content or good chilling tolerance are to be examined and validated in field tests and laboratory analyses. Using staggered sowing dates, chilling tolerance determined under controlled conditions is to be confirmed under natural growing conditions and the influence of different sowing dates on the yield is determined. The protein content of soybeans under domestic cultivation conditions is determined by means of NIR spectroscopy. Finally, phenotype- and genotype-based combinations between PGRs and high-yielding cultivars are created to provide pre-breeding material for Bavarian soybean breeders. With the help of established medium-throughput marker analyses, the breeding programs are controlled and the positive alleles of the PGRs are selected.
Section overview
Subjects
- Crop Production
- Plant Breeding
- Genetic Resources
