5Kukimura H, Kouyama Y. Study on mutation breeding in sweetpotato[ J]. Induced Mutations in Vegtatively Plants II, 1982, 199-233.
6Kimura T, Otani M, Noda T, et aL Absence of amylose in sweetpotato (lpomoea batatas(L ) Lam. ) following the introduction of granule- bound starch synthase I cDNA[ J]. Plant Cell Rep., 2001,20:663 -666.
7Carlson P S. Induction and isolation of autotrophic mutants in somatic cell culture of Nicotiana tobacum[ J]. Science, 1970, 168 : 487 -489.