Final report covering 9/1992-9/1995 : genetic analysis of cold tolerance in winter barley

OSU contributed its strength in molecular marker analysis and the MRI in cold tolerance physiology. In the course of the project, the participants developed a molecular marker ability at MRI, expanded their understanding of the genetics of winter-hardiness, and laid the groundwork for extensive international collaboration. The participants refined their analysis of winter-hardiness characters in key reference populations via rigorous testing and molecular mapping. An unrivaled linkage map of nearly 400 markers was developed in one reference population and subjected to extensive phenotyping. The search for genetic determinants of winter-hardiness was expanded to other winter barley germplasm. A process of transferring molecular markers to these populations was initiated and related to critical phenotypes. The final objective is to develop a comprehensive catalog of the determinants of winter-hardiness in a range of barley germplasm. With a catalog of markers in hand, breeders can proceed to use marker-assisted selection to develop genotypes with appropriate profiles. In terms of skill and awareness, researchers at the MRI have established themselves as a marker analysis facility and are now adept at generating and analyzing marker data to detect quantitative trait loci. The U.S. cooperator has developed an appreciation for the realities of research in Eastern Europe.