Induction of genetic tumor in Nicotiana glauca
Previous studies indicate that genetic tumors developed in certain interspecific Nicotiana hybrids,and parents did not produce tumors.In this study,genetic tumors were only obtained in Nicotiana glauca,which exhibited tumor features similar to those of N.glauca × N.langsdorffii.Our results suggest that genetic factors may control tumor formation independent of tumor induction but dependent on the specific interspecific cross.