9Huang JC, Sun M. Genetic diversity and relationships of sweet potato and its wild relatives in Ipomoea series Batatas(Convolvulaceae) as revealed by inter-simple sequence repeat(ISSR) and restriction analysis of chloroplast DNA. Theor Appl Genet,2000,100:1050~1060
10Kimura T,Otani M, Noda T, et al. Absence of amylose in sweet potato (Ipomoea batatas(L.) Lam.) following the introduction of granule-bound starch synthase I cDNA. Plant Cell Rep,2001,20:663~666