QTL Mapping for Root Traits and Their Effects on Nutrient Uptake and Yield Performance in Common Wheat (Triticum aestivum L.)

Wheat is one of the most important crops in world. Mapping QTLs for root traits essential selection wheat roots desirable efficient acquisition nutrients. Here, a QTL analysis was performed using 142 recombinant inbred lines derived from two varieties Xiaoyan 54 and Jing 411 soil column culture trial. The genetic map used this study contained 470 SSR markers covered 3438.4 cM genome. A total 25 shoot were detected, located at 16 marker intervals 13 chromosomes. percentage phenotypic variation explained by individual varied 6.1% to 22.0%. regulating RDW distribution on chromosomes 1A, 3A, 4A, 5B are growth both top- subsoils. For qRDW-1A, qRDW-3A, qRDW-5B, nearest much closer than that qRDW-4A, with distances ranging 0.01 1.18 cM. Combining these three not only increased nutrient uptake, but also GW, SDW, BDW under low nitrogen conditions field Therefore, valuable marker-assisted traits.