Fig. 2
QTLs for δ13C under two irrigation regimes over consecutive years, as identified in HC × QG mapping population. LG means linkage group. QTLs are indicated by boxes (1-LOD interval) and extended lines (2-LOD intervals). Solid and grid boxes represent QTLs detected in 2014 and 2015, respectively; QTLs detected under well-watered and drought-stress conditions are represented with blue and red colors, respectively. Genetic distance is shown in centimorgan (cM) on left side