Fig. 3. Locations of major genes and quantitative trait loci (QTLs) for disease resistance in barley. Major disease resistance loci are indicated on the left side of each chromosome. Loci in the same genetic locations are marked with vertical lines. Resistance QTLs for spot blotch (Rcs), net type net blotch (Rpt), Septoria speckled leaf blotch (Rsp), leaf scald (Rrs) and powdery mildew (Rbg) are indicated on the right side of each chromosome with the estimated BIN location. QTLs identified in cultivated and H. vulgare subsp. spontaneum are labeled in black and blue, respectively. The underlined QTLs were identified in this study. Locations of the major disease resistance genes and QTLs were adopted from Williams (2003) on the U.S. Barley Genome Project internet site (http://www.barleyworld.org). Location of additional QTLs reported by Backes et al. (2003) and Genger et al. (2003) were estimated on the basis of the BIN information for the barley markers and genes available at http://barleygenomics.wsu.edu/; verified 15 July 2005.