Marker-assisted breeding for adaptation traits to improve yield and yield stability in soybean (Glycine max L.) - MABYSoy (Markergestützte Züchtung auf Adaptationsmerkmale - Sojabohne (Glycine max L.)) | FISA - Forschungsinformationssystem Agrar und Ernährung

Marker-assisted breeding for adaptation traits to improve yield and yield stability in soybean (Glycine max L.) - MABYSoy (Markergestützte Züchtung auf Adaptationsmerkmale - Sojabohne (Glycine max L.))

Project

Project code: 2820EPS009
Contract period: 01.04.2023 - 31.03.2026
Budget: 335,736 Euro
Purpose of research: Applied research
Keywords: climate protection, sustainability, soybean

Project objectives: The major goal of the federal government’s protein crop strategy is to expand the cultivation of domestic grain legumes to increase sustainability in agriculture and to become less dependent on protein imports from abroad. For soybean being the most valuable protein crop, this requires the availability of novel varieties adapted to locations with less favorable climatic conditions. The project aims to accelerate the breeding process and development of varieties by marker-assisted selection for adaptation traits such as early flowering, early maturity and seedling cold tolerance as well as to increase the crude protein content without adverse effects on yield. Hence, we will employ existing DNA-based marker information to identify lines with advantageous allele combinations within the progeny of targeted crossings. These lines will be tested for the above-mentioned traits in multi-site and multi-year field trials to validate the employed SNP-markers and to assess their performance beyond favorable cultivation sites. Genome-wide association studies (GWAS) are utilized to identify DNA sequence variations that are associated with drought-stress tolerance (trials in laboratory and RainOut-shelter) and protein digestibility (trypsin inhibitor analysis). The resulting SNP-markers will be directly applied in the ongoing marker-assisted breeding programs. Thus, we expect validated marker assays and promising candidate lines for variety registration to be made available by the end of the project.

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