Location: Plant, Soil and Nutrition Research
2012 Annual Report
Two cycles of selection using each of three methods (phenotypic, marker-assisted, and genomic selection) were completed. Each method was also replicated twice such that six breeding programs were in fact implemented. We found that all replicates of selection that used markers generated greater gain than either of the two replicates of phenotypic selection. Furthermore, greater genetic variance was maintained in programs that use markers than in the phenotypic selection programs. A manuscript will shortly be submitted on these results.
Association genetics of beta-glucan concentration in a global collection of oat: Association mapping of beta-glucan concentration has now been completed in a global oat collection and in an elite North-American collection. In both cases sequence similarity of associated markers to rice sequence was used to target plausible candidate genes. Map position of associated markers was also related to positions of QTL identified in bi-parental mapping. These efforts generated two publications.
Education efforts in modern molecular breeding: Iowa State University Department of Agronomy Distance Education Program will be using an outline for a course on association methods in plant breeding developed by this project.