Quantitative trait locus analysis of cucumber fruit texture using double‐digest restriction‐site‐associated DNA sequencing

Fruit firmness and crispness are important traits of cucumber because they directly affect its commercial value. We performed quantitative trait locus (QTL) analysis these fruit texture with the double-digest restriction-site-associated DNA sequencing (ddRAD-Seq) technique detected 31 QTLs for firmness: 11 placenta firmness, 12 skin 8 flesh firmness; 25 crispness-related scores: 10 index, apparent fractal dimension by Richardson plot, 7 box-counting (Kolmogorov’s dimension). Several associated located near regions length, diameter, length-to-diameter ratio, resistance to powdery mildew downy mildew, indicating that gene linkage is likely limit breeding efficiency. Our results will contribute development informative markers closely linked genes desirable required effective selection new cultivars.