Fig. 4
Whole genome view of QTL locations for flesh color, flesh extract color and flesh chlorophyll content in 234 F2 (a, b) and 125 F2 (c, d) populations detected in two experiments (SY2016W and BJ2017F) based on CIM model in R/qtl. For each population, the X axis represents linkage map of seven chromosomes, and the Y axis is LOD scores; the horizontal line represents LOD threshold obtained with 1000 permutation tests (P = 0.05)