than those in Micro-Tom, which fell rapidly at 15 d after anthesis and then continually increased until the fruit maturation (Fig. 1-A and B). With a sharp rise in S. chmielewskii fruits at 45 d after anthesis, sucrose content appeared a maximum value. However, there was no obvious change of the sucrose content in Micro-Tom fruits. Besides, the dynamic change of starch content decreased with the development in Micro-Tom fruits, and first rose then fell in S. chmielewskii fruits, peaking at 25 d after anthesis (Fig. 1-C and D)