Gene expression comparison among starved and fed A. glycines. Bars represent the relative mRNA levels of different genes in A. glycines using qRT-PCR. The mean (± S.E) expression level is represented for three biological replicates for A. glycines fed with resistant soybean (green bars), susceptible soybean (blue bars), and starved (grey bars). The elongation factor-la (AyEF1α) gene was used as an internal control for cDNA . More details on genes and primer sequences are provided in Additional file 12. (* P < 0.05).