Fig. 6From: Identification and expression analysis of GRAS transcription factors in the wild relative of sweet potato Ipomoea trifidaExpression analysis of ItfGRAS gene transcript levels under abiotic stresses. FPKM values were used to measure the expression levels of ItfGRAS genes in Drought, NaCl, Cold and Heat treatments. Green and red scales indicate relatively low or high expression, respectively. The FPKM values of abiotic stresses for GRAS genes are listed in Additional file 6: Table S5Back to article page