A genetic linkage map of hexaploid naked oat constructed with SSR markers

Naked oat is a unique health food crop in China. Using 202 F2 individuals derived from a hybrid between the variety 578 and the landrace Sanfensan, we constructed a genetic linkage map consisting of 22 linkage groups covering 2070.50cM and including 208 simple sequence repeat (SSR) markers. The minimum distance between adjacent markers was 0.01cM and the average was 9.95cM. Each linkage group contained 2–22 markers. The largest linkage group covered 174.40cM and the shortest one covered 36.80cM, with an average of 94.11cM. Thirty-six markers (17.3%) showing distorted segregation were distributed across linkage groups LG5 to LG22. This map complements published oat genetic maps and is applicable for quantitative trait locus analysis, gene cloning and molecular marker-assisted selection.