Drought avoidance is an important drought-response mechanism of plants and a key behavior is early flowering. Sweetpotato wild relative I. triloba contains large amount of drought-resistance genes. Previously, we carried out the RNA sequencing of PEG-drought-stressed sweetpotato cultivar Kokei No.14, I. triloba and their somatic hybrid KT1 and two gene modules that were highly correlated with drought resistance were obtained from the sequencing data by Weighted Gene Co-expression Network Analysis(WGCNA). In...