Three specific amplified DNA fragments linked to fruit non-acid /acid trait of peach were obtained from 69 F1 seedlings of the intra-specific cross between cultivars 'Jingyu' and 'Flavortop' by using AFLP technique. After cloning the specific fragments and sequencing,we found that fragment A,B and C all were digested by both EcoRⅠand MseⅠ,and were 140 bp,199 bp,and 408 bp in length respectively. It was presumed that fragments B and C might contain elements which are relevant to regulating the sugar content...