The study of the AFLP system optimization and cluster analysis for peach showed that (1) High quality of genome DNA,suitable template density for preamplification and selective amplification were important factors that affected results of AFLP.(2) Preamplification primers combination E+0/M+0 and E+0/M+1 showed no significant difference in band number;(3) Selective amplification primers combination E+2/M+3 and E+3/M+3 were both suitable for comparision analysis of peach genome,but the former produced more po...