Fig. 3

Amine-related chemical differences between HA (High Aggressiveness) and LA (Low Aggressiveness) groups. Four amine-related chemicals in HA and LA group spiders detected by HPLC analyses. The Y-axis represents the concentration (represented by peak areas in mass spectrometry) on a log2 scale. Significant concentration difference was only found in tryptophan. (*: p < 0.05).