Institut für Resistenzforschung und Stresstoleranz
Genome-based precision breeding of gibberellin-sensitive hybrid rye is a plant breeding innovation that differs fundamentally from current methods for increasing productivity in rye and wheat. Gibberellin-sensitive hybrids with genetic height reduction help to utilize the full adaptation potential and climate protection service of rye for sustainable and secure cereal production. The interdisciplinary and pre-competitive research project RYE-HUB aims to accelerate the development of semi-dwarf rye with pronounced stability, improved drought tolerance, high yield potential, high resource efficiency, and defined grain qualities by developing all the necessary methods as well as the associated knowledge. The project focuses on the development and analysis of the multiparental mapping population JOSY (JKI Open-Source Rye), which is based on crosses of the sequenced elite breeding line Lo7 with 60 highly diverse European rye accessions. The provision of a comprehensive set of freely accessible inbred lines closes a current gap in rye research and breeding. Together with the pan-genome sequence developed in the project and the planned and the planned work on new breeding methods will significantly advance rye research and breeding. The genome-based and thus predictive development of innovative hybrid varieties accelerates breeding progress compared to purely phenotypic selection and will make a significant contribution to decoupling Germany's bio-economic growth from the ever-increasing burden on the environment, increasing the resource efficiency of grain production and promoting a sustainable way of life in Central and Eastern Europe.
Federal Ministry of Education and Research
