Genetic diversity analysis by AFLP for cassava (Manihot esculenta Crantz) in China.

11 cassava varieties from national nursery of cassava germ were amplified by PCR with 6 AFLP primers(GAA/CAC,GAA/CAG,GAA/CTT,GAG/CTC,GAT/CTC,GAT/CTT) to establish DNA fingerprinting.The results showed that there were total 3560 bands,including 2438 polymorphs bands and 90 special bands.It was 0.68 average polymorphs among the whole subjects.For the genetic similarity,the range was 0.578-0.774,it was middle level in polymorphism for the all cassava varieties.Meanwhile,the Ntsys-pc software was used to cluster the 11 varieties into three types by UPGMA method at the 0.345 value.SC8,SC205,SC6068 belonged to the first type,the second type included GR911 and SC124,and the rest was the third type.